Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Drawings for the 'Spectre' engine, detailing valve lift, tappets, and a revised compression ratio. | ||
| View original record | To BY. from E/JNR. c. Wor. Hs. RHC. re 'Spectre'. X4694 354 E/JNR.1/HP.24.1.34. We send you herewith drawings: LeC.3760 - Valve Lift Calculations. 3750 - Automatic Adjusting Tappets and Rocker Cover.… | ||
| scan0002 | Cancelling a ball valve design for Spectre Hydraulic Valve Adjusters, substituting it with a conical headed plunger. | ||
| View original record | x4094357 To BY. from E/JNR. c. Hs. E/JNR.1/HP.11.4.34 Spectre Hydraulic Valve Adjusters. As the result of American experience we wish to cancel the design of the above which embodies the ball… | ||
| scan0003 | Clarifying the selection of tappets for the Spectre engine, comparing the hydraulic and Halford types. | ||
| View original record | To Mr. [REDACTED] from RHC. c. Hs. [REDACTED] x4644 354 RHC.2/BE15.5.34. SPECTRE TAPPETS The valve rocker mechanism instructed for the above is of the eccentric hydraulically operated type. We… | ||
| scan0004 | List of features to be incorporated in the design of self-adjusting tappets for the Spectre engine. | ||
| View original record | x4044 357 E. From Hs/Std. Hs/Std.2/MA.29.5.34. We send you herewith a list of features which should be incorporated in the design of self-adjusting tappets for the Spectre engine. (1) Oil supply… | ||
| scan0005 | Updates and design features for the Spectre Self-Adjusting Tappets. | ||
| View original record | [Handwritten top]: Rm x357 SWDC To BY. from E/JNR. E/JNR.6/HP.29.6.34. c. Hs. RHC. re Spectre Self-Adjusting Tappets. We have been over the above and brought the device right up to date incorporating… | ||
| scan0006 | Request for modifications to whitemetal eccentrics clearance and the supply of weaker plunger return springs for trial. | ||
| View original record | Whitemetal eccentrics to have .0025 - .003 diametrical clearance on rockershafts. In addition to existing plunger return springs, please supply weaker springs for trial, one set exerting 75% of… | ||
| scan0007 | Clearances and spring modifications for Spectre Self-Adjusting Tappets. | ||
| View original record | x6494 354 To By. c. to RHC. c. to E/JNR. Hs/Rm.1/KW.4.7.34. Spectre Self-Adjusting Tappets. With reference to E/JNR.6/HP.29.6.34. The clearance we find satisfactory with white metal lined eccentrics… | ||
| scan0008 | Requesting an urgent adjustment to the valve timing on the Spectre Unit. | ||
| View original record | To RHC. +4694 354 Hs/Swdl.23/KW.5.7.34. Will you please make the valve timing on the Spectre Unit tooth later than at present. With .020 clearance this should be approx. - A.1 cylinder I O 6° Past… | ||
| scan0009 | Specification for the manufacture of a set of Spectre Self-Adjusting Tappets. | ||
| View original record | To RHC. +4694 354 Hs/Swdl.1/KW.6.9.34. Spectre Self-Adjusting Tappets. -------------------------------- Will you please make a complete set of tappets to the following specification which is up to… | ||
| scan0010 | Issues with the Spectre valve gear, including valve bounding and limitations of lead bronze bearings. | ||
| View original record | X4094F 354 To E. from Hs/Rm. Hs/Rm.10/KW.12.9.34. Spectre Valve Gear. When talking over the Spectre the other day you will remember that we commented on the low speed at which the valves were… | ||
| scan0011 | Results of spring tests to determine the critical speed on Spectre. | ||
| View original record | x354 To E. Hs/Smth.ll/KW.12.9.34. Critical Speed on Spectre. We have tried two sets of springs with the following results :- | | Seat Load | Rate | Crit. Speed | | E. 85315 | 42 | 183 | 3000 | | E.… | ||
| scan0012 | Instructing the modification and lightening of Spectre valves, particularly the exhaust valve. | ||
| View original record | X6094 354 To RHC: Hs/Smth.16/KW.14.9.34. Spectre Valves. We wish to lighten the Spectre valves, particularly the exhaust valve. Will you therefore please modify the existing set to Hs.1502/3. Hs/Smth. | ||
| scan0013 | Drawing LeC.4113 for a weight-reduced inlet and exhaust valve for Spectre Valves. | ||
| View original record | LR. SMITH 4694 354 To BY. from E/JNR. E/JNR.3/HP.24.9.34. c. Hs/Rm. RHC. re Spectre Valves. We send you herewith drawing:- LeC.4113 showing the inlet and exhaust valve reduced in weight. These should… | ||
| scan0014 | Spectre Double Valve Springs for use with a short duration camshaft, noting required head modifications. | ||
| View original record | To By. Copy to Hs/Rm. RMC 4644 357 E/PSN.1/MN.28/9/34. L.L. Smith Spectre Double Valve Springs. We send you herewith LeC.4124 showing double valve springs for use with the short duration camshaft on… | ||
| scan0015 | Fitting strengthened valve springs to a Spectre No. 2 unit. | ||
| View original record | +4694 354 To RHC. Hs/Swdl.6/KW.14.11.34. Spectre. When rebuilding No. 2 unit will you please have fitted the strengthened valve springs asked for in the memo. Hs/Swdl.9/KW.22.10.34. The number of… | ||
| scan0016 | Instructions for modifications to self-adjusting tappets for the Spectre project. | ||
| View original record | To RHC. 4694 354 Hs/Swdl.5/KW.12.12.34. Spectre. The set of self-adjusting tappets which you are fitting to No. 3 unit and which are to the specification Hs/Swdl.1/KW.6.9.34, requires the following… | ||
| scan0017 | Alteration of details for silent tappets for the Spectre. | ||
| View original record | X 354 To By. c. to RHC. Hs/Rm.8/KW.17.12.34. Silent Tappets for the Spectre. Will you please note that details of the silent tappets for the Spectre should be altered in accordance with the two notes… | ||
| scan0018 | Production challenges and requests for silent tappets on the Phantom model. | ||
| View original record | X 354 ~~7060~~ To Wor. & Sg. from Hs/Rn. c. to E. c. to Ey. Silent Tappets on the Phantom. We realize that there were good reasons for not introducing these on the Phantom. We would however like to… | ||
| scan0019 | Comparison of wear on Spectre and Phantom tappets, referencing their different lubrication methods. | ||
| View original record | SECRET. X384 To Hs/Rm. from E/JNR. E/JNR.3/HP.18.1.35. Spectre Tappets. If we compare the Spectre tappets with the Phantom the wear on the contact faces can only be explained by the increase in… | ||
| scan0020 | Comparison of engine component specifications for the Spectre and Phantom models. | ||
| View original record | SPECTRE CAMSHAFT 1.25 Camshaft Speed - 2250 Rubbing Speed - 88 TAPPET PAD .45 Valve Spring 52 lbs to 125. Tappet spring. 9 lbs to 21.5 lbs. Load on tappet per inch. 115 lbs to 280. PHANTOM. CAMSHAFT… | ||
| scan0021 | Spectre bottom tappet wear and a proposed camshaft modification to reduce rubbing velocity. | ||
| View original record | To RHC. +354 Hs/Smth.14/KW. 21.1.35. Spectre Bottom Tappet Wear. We find that whereas the loading on the Spectre bottom tappets is much the same as on the Phantom, the rubbing velocity is 40% greater.… | ||
| scan0022 | Tappet wear on the Spectre Valve Gear and proposing a spring redesign. | ||
| View original record | Ll. Smith. x357 SECRET. To Hs/Rm. from E. E.2/HP.24.1.35. C. RHC. E/JNR. E/DSN. Spectre Valve Gear. After further thought about the Spectre tappet trouble, I believe it is evident that the wear is… | ||
| scan0023 | Specification note for fitting self-adjusting tappets to Spectre units. | ||
| View original record | To RHC. +354 Hs/Swdl.2/KW.5.2.35. Spectre. This note is to confirm that you will fit the latest type of self-adjusting tappets to Nos. 1 and 2 units, as carried out on No. 3 unit. The following is the… | ||
| scan0024 | The manufacturing difficulties of Spectre Bottom Tappets due to camshaft grinding limitations. | ||
| View original record | 49 x 354 To E. c. to Ey. c. to RHC. SECRET Hs/Smth.9/KW.12.2.35. Spectre Bottom Tappets. Re E/JNR.1/HP.11.2.35. We understand that in connection with the scheme for roller tappets, LeC.4353, you… | ||
| scan0025 | Secret memo regarding design changes to the Spectre engine roller tappets and camshaft. | ||
| View original record | Ll. Smith Please see me To EY. from E/JNR. SECRET. E/JNR.1/HP.11.2.35. c. Hs/Rm. c. RHC. Re Spectre - Roller Tappets. We send you herewith:- LeC.4353 showing the design for the roller tappets. It will… | ||
| scan0026 | Secret memo discussing the failure of Spectre valve springs and requesting a new design and testing rig. | ||
| View original record | SECRET. X352 To E. c. to Wor. c. to By. Hs/Rm.6/KW. 23.2.35. Spectre Valve Springs. In order to prevent valve bounce with the silent tappets we have been running with valve springs Hs.1607, which are… | ||
| scan0027 | Possible alterations to address Spectre tappet wear. | ||
| View original record | Test [Stamped] x384 [Handwritten] E/PSN.2/MN.23/2/35. Copy to Hs/Rm. Room A C Smith [Handwritten signature] SPECTRE TAPPET WEAR. Once we are convinced that this wear is occurring under normal… | ||
| scan0028 | Request to manufacture Spectre Bottom Tappets from three different specified materials for testing purposes. | ||
| View original record | To RHC. +354 Hs/Smth.6/KW.26.2.35. Spectre Bottom Tappets. We wish to try some tappets made of different materials from the camshaft, and should like you to put in hand the following pieces :- 6 off.… | ||
| scan0029 | Modifications and testing procedures for Spectre tappets. | ||
| View original record | SECRET +354 Ll. Smith To Hs/Rm. from E. E.1/HP.27.2.35. c. Wor. By. RHC. Hs/Swdl. Spectre Tappets. We have received the model tappet fitted with roller but as the smaller diameter cam cannot be ground… | ||
| scan0030 | Secret memorandum regarding the fitting and modification of Spectre Roller Tappets. | ||
| View original record | 4354 LP. SMITH To EY. from E/JNR. SECRET. E/JNR.1/HP.2.3.35. c. Hs/Rm. RHC. Hs/Smyth9/KW.12.2.35. [Signature] re Spectre Roller Tappets. We send you herewith:- Lec.4383 showing roller tappets fitted… | ||
| scan0031 | Secret memorandum regarding the Spectre engine's larger exhaust valve and instructions for fitting. | ||
| View original record | SECRET. X357F To BY. from E/JNR. c. Hs/Rm. RHC. E/JNR.1/HP.4.3.35. re Spectre - Larger Exhaust Valve. We send you herewith:- LeC.4218 showing the above. The diameter of the valve has been increased… | ||
| scan0032 | Request to prepare a replacement set of valve springs and bottom washers for chassis E.85316 due to constant breakages. | ||
| View original record | To RHC. +352 Hs/FD.4/KW.6.3.35. Will you please have a set of valve springs and bottom washers prepared for 2-S-1 chassis to E.85316 replacing Hs.1607 which are constantly breaking. Hs/F.Dodd. | ||
| scan0033 | Request to fit double valve springs to Spectre Unit No. 5. | ||
| View original record | x 354 To RHC. Hs/Smth.6/KW. 8.3.35. Spectre - Valve Springs. Will you please fit double valve springs to Hs.1827/8 to Spectre Unit No. 5. The valve spring washers etc. should be to LeC.4124. Hs/Smth. | ||
| scan0034 | Specification table for Spectre Double Taper Valve Springs, part numbers Hs.1827 and Hs.1828. | ||
| View original record | Hs/Smth. 6/KW. 8.3.35. Spectre Double Taper Valve Springs - Hs.1827/S. | | Hs.1827 Outer Spring | Hs.1828 Inner Spring | |---|---|---| | Wire dia. | .192 | .116 | | Mean Coil dia. Top | 1.108 | .722 |… | ||
| scan0035 | Failure of Spectre valve springs and potential solutions, including double valve springs. | ||
| View original record | To Hs/Rm. 4354 E/PSN.1/MN.8.3.35. Copy to Wor. BY. [text has a line through it] Ex. RHC. Rm [initials] SPECTRE VALVE SPRINGS. -------------------- In reply to your memo. Hs/Rm.6/KW.23.2.35. on the… | ||
| scan0036 | Modified single valve spring with a separate gland spring for the Spectre engine. | ||
| View original record | TO BY. +356 Copy to Hs/Rm. RHC. E/PSN.1/MN.13.3.35. SPECTRE VALVE SPRINGS. We send you herewith LeC 4417 showing a modified single valve spring with a separate gland spring for the Spectre engine. By… | ||
| scan0037 | Problem with seizing Spectre exhaust valves and proposing a modification to the valve stem. | ||
| View original record | from RHC. c. Hs/Rm. X 35F RHC.9/MS15.3.35. SPECTRE EXHAUST VALVES. Spectre Exhaust Valves E. 86289 are inclined to seize in the bottom end of the guide, and it is suggested this is due to the… | ||
| scan0038 | Requesting the production of a set of Spectre exhaust valves for testing on No. 5 engine. | ||
| View original record | To RHC. +354 HS/Rn.7/KW.20.3.35. Spectre Exhaust Valves. Referring to RHC.9/MS.15.3.35, will you please produce a set of Spectre exhaust valves to give the effect you suggest of the large diameter… | ||
| scan0039 | Secret memo regarding an alteration to the eccentric ratio for Spectre hydraulic tappets to prevent sticking. | ||
| View original record | x354 SECRET. To BY. [text struck through] from E/JNR. c. Hs/Rm. RMC. [text struck through] re Spectre - Hydraulic Tappets. E/JNR.2/HP.25.3.35. Please receive herewith:- LeC.4427 showing the eccentric… | ||
| scan0040 | Request to produce two more sets of Spectre valve springs after satisfactory testing on No. 5 Unit. | ||
| View original record | To RHC. x354 Hs/Rm.14/KW.6.4.35. Spectre Valve Springs. The double valve springs to Hs.1827/S have proved satisfactory on No. 5 Unit. Will you please put two more sets in hand, together with the… | ||
| scan0041 | Design and sourcing of cast iron Spectre Tappets, noting required part changes. | ||
| View original record | To DY. from E/JNR. c. Hs/Rm. RHC. SECRET. x.354 E/JNR.2/HP.25.4.35. L.P. Smith. Follow up please. Rm. re Spectre Tappets. Please receive herewith:- LeC.4470 showing the design of the tappet in cast… | ||
| scan0042 | Issues with loose ball valve seats in Spectre Oil Relief Valves, proposing a new screwed fitting method. | ||
| View original record | To E. c. to Ry. +354 Hs/Swdl.7/KW.3.5.35. Spectre Oil Relief Valves. Trouble has been experienced on several units with the ball valve seats E.84957/8/9 which are of BZ/PC, working loose, and coming… | ||
| scan0043 | Comparative condition report on Spectre Bottom Tappets after an hour's run at 4,000 r.p.m. | ||
| View original record | To E. c. to Wor. c. to By. x354 Hs/Swdl.17/KW.9.5.35. Spectre Bottom Tappets. After an hour's run at 4,000 r.p.m. the comparative condition between standard S/ZN and similar tappets as chrome plated… | ||
| scan0044 | Condition of various plated tappets after treatment. | ||
| View original record | -2- HS/Swdl.17/KW.9.5.35. No. | Thickness of Plating | Treatment | Condition. ---|---|---|--- 6A | .004 | Ground to clean | As 1A, but plating peeling badly 4A | .002 | " " | As 1A 5A | .002 | " " |… | ||
| scan0045 | Oil circulation issues in the Spectre camshaft and tappets and a proposed modification. | ||
| View original record | To RHC, x354 Hs/Smth.18/KW.28.5.35. Spectre Camshaft & Tappets. We are inclined to think that the trouble with Spectre valve gear is due to the difficulty of maintaining an adequate circulation of… | ||
| scan0046 | The manufacture of relief valves and caps for the Spectre project. | ||
| View original record | X 354 To RHC. Hs/Swdl.3/KW.14.6.35. Spectre. Will you please make the following relief valves and caps :- 4 off Hs.2035 Relief Valves. 2 off Hs.2036 Relief Valve Caps. 1 off Hs.2037 " " " 1 off… | ||
| scan0047 | Excessive wear on Spectre Valve Spring Washers and proposing a material change. | ||
| View original record | To D. from RHC. To By. c. Hs. Rm X354 RHC.5/ETM24.6.35. Spectre Valve Spring Washers Both the top washer E.86359 and the bottom washer E.86374 are subject to excessive wear on the spring face. Owing… | ||
| scan0048 | Issue with Spectre valve spring washers where the spring tip digs into the bottom washer. | ||
| View original record | To RHC. x357 Hs/Smth.4/KW. 26.6.35. Spectre Valve Spring Washers. RHC.5/ETM. 24.6.35. The washers in question have been used in conjunction with the double springs Hs.1827/8. We have examined these… | ||
| scan0049 | Specification memo regarding valves, fittings, and camshafts for the Spectre project. | ||
| View original record | X354 To By/GSS. Hs/Swd1.11/KW. 5.7.35. Spectre. With regard to valves and fittings for the first production units, our up-to-date specification is as follows :- Valves & Fittings. 8 : 1 Eccentric… | ||
| scan0050 | Secret memorandum discussing the issue of chromium plating peeling from tappet sharp edges and a proposed solution. | ||
| View original record | X354 To EY. from E/JNR. c.c.RHC. Hs/Rm. E/JNR.2/HP.1.8.35. SECRET. SPECTRE. - Chromium Plated Tappets. We understand that the chromium plated tappets are giving reasonable satisfaction, but there is a… | ||
| scan0051 | Secret memo regarding modified metering plugs for Spectre auto-adjusting tappets. | ||
| View original record | x354 BY. c. RHG. Hs/Rm. SECRET. Spectre - Auto Adjusting Tappets. We send you herewith:- LeC.4633 showing modified metering plugs for the above. Experience has shown that silting up has occurred at… | ||
| scan0052 | Request to determine the amount of slum formed in different oils used in Spectre silent tappets. | ||
| View original record | x 354 To Hl. Hs/Smth.15/KW.3.9.35. We are interested in the rate of formation of slum in the hydraulic units of Spectre silent tappets. Will you please determine for us the amount of slum formed in… | ||
| scan0053 | Request to manufacture a set of Spectre exhaust valves with solid stems. | ||
| View original record | To RHC. X354 Hs/Smth.22/KW.6.9.35. Spectre Exhaust Valves. Will you please make us a set of exhaust valves to E.86289, but with solid stems. We will call these Hs.2111. Hs/Smth; | ||
| scan0054 | Secret memo regarding an experimental scheme for Spectre Tappets to prevent wear. | ||
| View original record | L.R. Smith. x354 Ram Please instruct immediately for 4 cyls of a spectre unit Am E/JNR.1/HP.7.9.35. To DY. from E/JNR. c. Hs/Rm. RHC. re Spectre Tappets. SECRET. We send you herewith:- LeC.4675 which… | ||
| scan0055 | Cancelling a previous communication regarding the Spectre Exhaust Valve. | ||
| View original record | To RHC. X354 Hs/Smth.1/KW.9.9.35. Spectre Exhaust Valve. Since issuing Hs/Smth.22/KW.6.9.35, we find that E.86782 has a similar profile to E.86289 and that the latter is of smaller dia. Will you… | ||
| scan0056 | The strength of drilled exhaust valves for the Spectre engine and proposing a switch to undrilled valves. | ||
| View original record | To By. c. to E. X354 Hs/Smth.8/KW.9.9.35. Spectre Exhaust Valve. Now that we find that drilled exhaust valves are not strong enough for Spectre, we think it would be advisable to give valves to… | ||
| scan0057 | Secret memorandum regarding a drawing of a Phantom tappet for an advanced noise test. | ||
| View original record | Ll. Smith [signature] Please instruct for 28.E.X. To BY. from E/JNR. E/JNR.6/HP.9.9.35. X 354 SECRET. c.RHC. c.Hs/Rm. We send you herewith:- LeC.4673 showing the Phantom tappet held off the base… | ||
| scan0058 | Laboratory report on tests for oil deposit formation in Spectre silent tappets. | ||
| View original record | Hs/Rm. from H1. Rm x374 Laboratory. Report No.L.3859 H1.7/MM.13.9.35. FORMATION OF DEPOSIT IN SPECTRE SILENT TAPPETS - Hs/Smith.15/KW3.9.35. We have carried out the following tests at the request of… | ||
| scan0059 | Failures on Spectre and proposing to increase the diameter of exhaust valve stems. | ||
| View original record | To E. x354 Hs/Rm.15/KW.17.9.35. In discussing the failures on Spectre with Hs., we are both of the opinion that the exhaust valve stems ought to be increased in diameter. We feel that now we have had… | ||
| scan0060 | Requesting the preparation of stellited and silichrome exhaust valves for 20/25 HP and Spectre engines. | ||
| View original record | To RHC. X 354 Hs/Rm.17/KW. 23.9.35. 20/25 HP. & Spectre Exhaust Valves. Will you please prepare a set of 12. KE-965 stellited exhaust valves for the Spectre, six of which should be fitted to Spectre… | ||
| scan0061 | Request to manufacture three sets of modified relief valves for the Spectre production cars. | ||
| View original record | To RHC. X354 Hs/Swdl.24/KW.23.9.35. Spectre. Will you please make 3 sets of modified relief valves for the production cars. They have borrowed the set from No. 3 Spectre chassis which ran 10,000… | ||
| scan0062 | The causes and solutions for relief valve chatter on the Spectre model. | ||
| View original record | To E. c. to Wor. c. to By. 4354 Hs/Swdl.25/KW.26.9.35. Relief valve Chatter on Spectre. This trouble has been experienced on both the original relief valve layout (Lec.3790) using the small pump, and… | ||
| scan0063 | The production of car sets and the design of valves and pumps. | ||
| View original record | -2- Hs/Swdl.25/KW.26.9.35. Three more sets are being produced for the remaining production cars. The existing springs are used and the valves will commence to function when built up dry, as the… | ||
| scan0064 | Modifications to valve stem diameters for the Phantom III and 25-29 HP models. | ||
| View original record | Lt Smith - Please supply Hs/Rm. F.2/HP.26.9.35. Rm Phantom 3 Valves. ---------------- Replying to your memo Hs/Rm.15/KW.17.9.35, I have already decided to increase the exhaust valve stem diameter, and… | ||
| scan0065 | Comparative table of exhaust and inlet valve and stem dimensions for various engine models. | ||
| View original record | EXHAUST Dia Valve. | Dia. Stem. | % Present 20-25 HP. | 1.2 | .343 | 28.4 Present Bentley. | 1.3 | .343 | 26.4 25-29 HP. | 1.3 | .343 altered to .375 | 26.4, 28.8 4 litre Bentley. | 1.4 | .343 altered… | ||
| scan0066 | List of weights for various Phantom III inlet and exhaust valves. | ||
| View original record | To E. x354 Hs/Smth.6/KW.27.9.35. PHANTOM III VALVES. Replying to E.2/HP.26.9.35, the weights of various Ph.III valves are Inlet. E. 84828 .161 lbs. E. 86288 .141 lbs. Exhaust E. 84829 .188 lbs. E.… | ||
| scan0067 | Temporary and permanent filter for Spectre hydraulic tappets. | ||
| View original record | x357 Steadman To BY. from E/JNR. c. Hs/Rm. RHC E/JNR.2/HP.28.9.34. Spectre - Filter for Hydraulic Tappets. We send you herewith:- LeC.4065 showing a temporary oil filter, which can be fixed to the… | ||
| scan0068 | Letter from The Ethyl Export Corporation detailing the composition of a modified Monel metal used in French aero engines. | ||
| View original record | COPY+ The Ethyl Export Corporation, Thames House, Millbank, London, S.W.1. 30th September, 1935. W.A.Robotham Esq., Experimental Dept., Rolls-Royce Ltd., Nightingale Road, Derby. Dear Rm., With… | ||
| scan0069 | Criticism of Spectre valve seats due to lead attack and arranging for tests with new material. | ||
| View original record | To E. & By. c. to Hl. X354 Hs/Rm.13/KW.1.10.35. Spectre Valve Seats. Banks of the Ethyl Corporation criticised our Spectre valve seats rather severely from the point of view of lead attack when he was… | ||
| scan0070 | Proposal to investigate using larger valves for the Phantom III 4-port head by utilising the length of the Spectre engine. | ||
| View original record | To E. +354 Hs/Smth.21/KW.2.10.35. Phantom III - 4-Port Head, LeC.4729: At the present moment we are not exploiting the length of the Spectre engine to give us the largest possible valves. Since the… | ||
| scan0071 | Requesting tests on Phantom III cylinder heads with reduced valve clearances to quieten operation. | ||
| View original record | To RHC. X 354 Hs/Swd1.3/KW.11.10.35. Phantom III. We wish to carry out tests with reduced clearances between the valve stems and guides in order to see if the operation of the valve is more quiet.… | ||
| scan0072 | Request and specification for plunger return springs for the Phantom III. | ||
| View original record | To RHC. X324 Hs/Swdl.7/KW.14.10.35. Phantom III. Will you please have made 4 dozen (2 sets) of plunger return springs to E.87554. The details of the springs are - Rectangular Wire .080" x .032" No. of… | ||
| scan0073 | Relief valve chatter on the Phantom III model. | ||
| View original record | To E. c. to By. X354 Hs/Swdl.10/KW.18.10.35. Relief Valve Chatter on Phantom III. As mentioned in the report Hs/Swdl.25/KW. 26.9.35, we had not tried out the hydraulic plunger valves on the latest… | ||
| scan0074 | Modifications to Phantom III cylinder heads, including valve plating and spring retention. | ||
| View original record | x354 To RHC. Hs/Swdl.9/KW. 25.10.35. Phantom III. With regard to the cylinder heads which you are preparing for us to Hs/Swdl.3/KW.11.10.35 and Hs/Swdl.28/KW.15.10.35, we understand that the S/SLV.… | ||
| scan0075 | Hydraulic tappets, cancelling instructions for Phantom II parts as they are now detailed with Spectre parts. | ||
| View original record | X 354 To RHC. Hs/Smth.6/KW.30.10.35. Hydraulic Tappets. Re schemes LeC.4673/5 for reducing cam loads on the base circle. When we asked for parts for both Ph.II and Spectre, we expected the Ph.II bits… | ||
| scan0076 | Design modification to the Phantom III hydraulic tappet eccentric arm and a material change. | ||
| View original record | BI. c. HHC HS/Rm. Rm x352 E/JNR.1/HP.7.11.35. re Phantom 3 Hydraulic Tappets. Referring to the broken eccentric arm on the last car in France, we have altered the design by putting on more metal at… | ||
| scan0077 | Inadequacy of strengthening on a stiffened eccentric arm for Phantom III tappets after a 10,000-mile test. | ||
| View original record | To E. x354 Hs/Smth.13/KW.11.11.35. Stiffened Eccentric Arm for Ph.III Tappets. In view of the type of fracture experienced during the 10,000 miles test, we do not think that the strengthening shown on… | ||
| scan0078 | Correcting the part number for a high-pressure spring for relief valves on the Phantom III. | ||
| View original record | x 3174 To By. Hs/Swdl.15/KW.15.11.35. Phantom III. With regard to the LOP. for the relief valves, the wrong high pressure spring is quoted. This should be corrected from E. 86849 which is for… | ||
| scan0079 | Instructions for fitting a tappet holding off scheme and other components to a Phantom III unit. | ||
| View original record | To RHC. X354 Hs/Swdl.19/KW.18.11.35. Phantom III. Will you please fit the tappet holding off scheme to LeC.4675 on No.3 unit which came out of No. 1 chassis. The detail drawing of the tappet E.87485… | ||
| scan0080 | Revised procedure for reaming hollow stem valves to reduce manufacturing costs for the Kestrel engine. | ||
| View original record | To Wor. from RHC. c.c. Sft. HY. Hs. DY. TS. x354 RHC.2/ETM27.11.35. REAMING OF HOLLOW STEM VALVES. Investigation into the process of boring exhaust valve stems has been carried out with the object of… | ||
| scan0081 | Machining austenitic steels, detailing improvements to boring processes using reamers and 'D' bits. | ||
| View original record | 2. Austenitic steels are difficult to machine particularly where boring processes are concerned owing to the fact that the material tears so very easily, and the scoring which takes place necessitates… | ||
| scan0082 | The status of four manufacturing and assembly items. | ||
| View original record | To Hy. from RHC. c. WOF. HS. RHC.1/AP.27.11.35. With reference to HY/SR.20.11.35. the position of the items referred to is as follows - 1. Valve Reaming - Report attached. 2. Rear Axle setting Tackle.… | ||
| scan0083 | Manufacturing processes including final shaving, frame fixtures for aero engine cylinders, and the care of jigs, tools, and fixtures. | ||
| View original record | 4. cont. The object of final shaving which is the equivalent of diamond boring, is not only to correct bores for size but also alignment in both planes, as a certain amount of crankcase distortion… | ||
| scan0084 | Principles for introducing equipment and tackle for economical production. | ||
| View original record | 6. cont. In some instances fixtures are sent to the stores on completion of certain operations but here there is no system of rigid inspection and overhaul where necessary to insure the equipment… | ||
| scan0085 | Request for two sets of modified valve springs for the Phantom III to address a valve bounce issue. | ||
| View original record | +374 To RHC. Hs/Swdl.29/KW.29.11.35. Phantom III. Will you please make 2 sets, that is, 48 Valve Springs to Rm.24, this being a modification of E.86365 outer spring. The inner springs to be fitted in… | ||
| scan0086 | Requesting modifications to gauze tappet filters for a Phantom III vehicle. | ||
| View original record | x354 To RHC. Hs/Swdl.29/KW.4.12.35. Phantom III. Will you please make 2 gauze tappet filters to LeC.4834, with the following modifications. (1) Substitute the drilled metal star shaped guard by a wire… | ||
| scan0087 | The progress of work on the Phantom III valve gear, focusing on experiments to reduce valve noise. | ||
| View original record | X354 To E. from Hs/Rm. Hs/Rm.17/KW.4.12.35. Phantom III Valve Gear. Here is a report up to date of our work on the Ph.III valve gear. It is really to show you how we are going along, because we have… | ||
| scan0088 | Test results on Phantom III valve gear to address valve bounce by adjusting spring loads and plunger clearances. | ||
| View original record | To E. Hs/Swd1.18/KW.4.12.35. Phantom III Valve Gear. We have tested an up to date set of tappets with the 8.75 : 1 eccentric ratio to LeC.4427 in conjunction with the latest large stem diameter… | ||
| scan0089 | Valve noise and bounce issues, detailing valve failures and proposed design modifications. | ||
| View original record | -2- Hs/Swdl.18/KW.4.12.35. The valve noise at present on this set is almost solely confined to the exhaust valve on seating, and can be cured by applying a sideways force to the spring. A set of… | ||
| scan0090 | The silting of oil metering jets and a proposal for a new filter design. | ||
| View original record | -3- Hs/Swdl.18/KW.4.12.35. (b) Silting of the Oil Metering Jets to the Plungers. Although now running with the latest .025" jet feed hole LeC.4633, which has replaced the original feed, an annular… | ||
| scan0091 | Request to manufacture two double gauze tappet filters for demonstration cars 34-EX and 35-EX. | ||
| View original record | x 354 To RHC. Hs/Wym.19/KW.20.12.35. Will you please make 2 further double gauze tappet filters to instructions contained in Hs/Swdl.29/KW.4.12.35. These are intended for 34-EX and 35-EX demonstration… | ||
| scan0092 | Request to make two further sets of metering plugs for automatically adjusting tappets on demonstration cars. | ||
| View original record | To RHC. x 354 Hs/Wym.18/KW.20.12.35. Ph.III Auto. Adjusting Tappets. Will you please make 2 further sets of metering plugs E.87361. These will be fitted as soon as completed to 34-EX and 35-EX… | ||
| scan0093 | Design change to Phantom III exhaust valve stems to address noise and breakage issues. | ||
| View original record | Rm L SMITH X354 DY. c. FHC. Hs/Rm. Ws. E/JNR.1/HP.23.12.35. Phantom 3 Exhaust Valves. Experiments have shown that when we increased the diameter of the valve stems the increase in weight demanded… | ||
| scan0094 | Modification of the Phantom III Oil Relief Valve to prevent chattering. | ||
| View original record | x3524 DY c. RHC c. Hs/Rm. E/JNR.1/HP.31.12.35. re Phantom III Oil Relief Valve. We send you herewith:- Led.4804 showing the relief valve modified in order to prevent the valves from chattering. The… | ||
| scan0095 | Examination of faulty Fescolised tappets for a Phantom III 31-EX. | ||
| View original record | To. E. c. to Ey. c. to Hs/Rm. x3)4 Hs/GWH.3/KW.1.1.36. Phantom III - 31-EX. In my examination of the Fescolised tappets I was not aware that one had been taken away. The Fescolised surface on one… | ||
| scan0096 | Outlining a series of tests to compare different materials and designs for exhaust valves. | ||
| View original record | To RHC. Hs/Swdl.6/KW.16.1.36. Exhaust Valves. We are about to start a series of tests in order to find out if it is possible to substitute KE-965 steel by a less expansive steel. In conjunction with… | ||
| scan0097 | Problems with hydraulic tappet adjusters on the Phantom III and proposing experiments with alternative solutions. | ||
| View original record | To RHC. x357 Hs/Rm.3/KW.16.1.36. Silent Tappets on the Phantom III. The more we see of the hydraulic tappet adjusters on the Ph.III, the less we like them. Apart from the manufacturing cost, which… | ||
| scan0098 | Investigating valve clatter noise transmitted via the thermometer connection and proposing solutions. | ||
| View original record | To E. c. to Mx. +3524 Hs/Rm.25/KW.17.1.36. VALVE CLATTER. It has been established by Mx. that the thermometer connection is guilty of transmitting a considerable amount of valve noise to the front… | ||
| scan0099 | Testing a tappet 'holding off' scheme for the Phantom III engine. | ||
| View original record | To E. c. to Wor. c. to By. X352 Hs/Swd1.1/JH.17.1.36. Phantom III We have tested the tappet " holding off" scheme to LEC.4537 whereby the bottom tappet is held off from the base circle of the cam by a… | ||
| scan0100 | Analysis of Phantom III valve gear clearance figures, temperature effects, and material substitutions. | ||
| View original record | FILE. +354 Hs/Swdl.9/JH.23.1.36. Ph.III Valve Gear. In conjunction with the fitting of standard type of tappets and deleting the automic adjustment scheme, the following clearance figures have been… | ||
| scan0101 | Preliminary test results on Silchrome valves with chrome plated stems and reduced clearance in valve guides. | ||
| View original record | -2- Hs/Swdl.9/JH.23.1.36. P Preliminary tests have been carried out on Silchrome valves with chrome plated stems running with .001-.0015 clearance in the valve guides. This is only half the normal… | ||
| scan0102 | Technical note discussing valve settings, expansion, and clearances for Ph.II and Ph.III engines. | ||
| View original record | 23rd January, 1936. (1) Ph.II valves being larger than Ph.III must expand more than .005 to .006. (2) If we say that Ph.III has to have an initial setting of .003 to allow for this, Ph.II initial… | ||
| scan0103 | Requesting the endurance testing of a modified oil feed to the hydraulic tappet mechanism for the Phantom III. | ||
| View original record | GRY see me x 354 Hs. c. Hs/GWH E/Lid.1/HP.30.1.36. re Modified Oil Feed to Hydraulic Tappet Mechanism - Phantom III It was agreed at the last conference between Experimental and Design Department that… | ||
| scan0104 | Note on springs used when fitting damped relief valves to a Phantom III. | ||
| View original record | To By. c. to RHC. X384 Hs/Swdl.4/JH.3.2.36. Phantom III In conjunction with the fitting of damped relief valves to Hs.2153/4/5 it should be noted that the springs E.86850 and E.86806 should not have… | ||
| scan0105 | The testing of chromium-plated tappets and adjustment schemes for the Phantom III engine. | ||
| View original record | GRY x354 Hs/Rm. from E. c. Wer. By. Hs/Swdl. E/JNR. E.3/HP.11.2.36. re Phantom III. With reference to memo Hs/Swdl.1/JH.17.1.36, reporting on the test of the tappet holding off scheme LeC.4675, this… | ||
| scan0106 | Issues and modifications for fitting dirt covers on the tappet plunger casings for the Phantom III. | ||
| View original record | X354 To E. Hs/Swdl.15/KW.12.2.36. Phantom III. In fitting the dirt covers on the tappet plunger casings, the hole in the plunger through which the plunger valve is released is half obscured when in… | ||
| scan0107 | Sending Spectre tappets to the Durion people for chromium plating and obtaining production costs. | ||
| View original record | To RHC. x354 Hs/Rm.18/KW.25.2.36. Will you please send a set of Spectre tappets to the Durion people for chromium plating, and at the same time obtain the production costs from them for doing this… | ||
| scan0108 | Modification to the dirt covers on the Phantom III hydraulic tappets. | ||
| View original record | BT. c. Hs/Rm. Hs/Swdl. RMC. Rm x357 E/JNR.1/HP.5.3.36. Phantom III Hydraulic Tappets. Hs/Swd1.15/KW.12.2.36. The suggestion made by Hs/Swdl to reverse the dirt covers on the top of the plunger casings… | ||
| scan0109 | Requesting the modification and fitting of tappet plunger dirt covers. | ||
| View original record | To RHC. X324 Hs/Swdl.3/JH.6.3.36. Ph.III. Will you please instruct that the tappet plunger dirt covers be modified and fitted, as shown in the memo. E/JNR.1/HP.5.3.36. on No.9 10, & 11 and all future… | ||
| scan0110 | Comparing the chrome hardening processes for Phantom III Tappets by Durion Ltd and the Fescol process. | ||
| View original record | To Roy. from RHC. c. EF. c. Hs. c. Hs/Rm. X354 RHC.3/ETM26.3.36. Phantom III Tappets - E.87336. Referring to Roy/Dn.7/Me.12.3.36. in connection with chrome hardening of wearing surfaces, we would… | ||
| scan0111 | Reporting noisy relief valves on Ph.III and stuck tappets on 32-EX during cold starts. | ||
| View original record | To Hs/Swdl. X354 Hs/Rm.8/KW.17.4.36. All the relief valves on Ph.III are noisy starting up from cold. We shall have to do some more work on this job. Most of the tappets on 32-EX stuck up when… | ||
| scan0112 | Issues with chromium plated tappets for the Phantom III, specifically over-stress and chipping. | ||
| View original record | P Giles Rm 354 HY/CS. [struck through] c. KHC. c. Hs/Rm. BY.W/G.28.4.36. SWDL PHANTOM III. CHROMIUM PLATED TAPPETS. Any Commenti? Rm Mr. Wilson and his technical assistant recently paid a visit to… | ||
| scan0113 | Position of valves and cylinder heads for Bentley and Phantom III chassis units. | ||
| View original record | x 354 To RHC/HPS. Hs/Swdl.4/JH. 5.6.36. Position of Valves and Cylinder Heads for Chassis Units. Bentley. Head which broke an exhaust valve during the high power development to be cleaned up and… | ||
| scan0114 | New standard cylinder heads and valves for the No.12 and B-9 units, including part numbers and material availability. | ||
| View original record | -2- Hs/Swdl.4/JH. 5.6.36. New standard cylinder heads and valves required for No.12 unit, existing heads are obsolete. 25/30 units. Standard cylinder head originally off B-9 unit to be brought up to… | ||
| scan0115 | The wrong, over-stressed valve springs being fitted to the Phantom III on the production line. | ||
| View original record | x357 To By. from Rm. c. to E. Hs/Rm.14/KW.8.6.36. Phantom III Valve Springs. We have got the wrong valve springs on the Ph.III on production. When we changed back from the thick stem to the thin stem… | ||
| scan0116 | Correction for incorrectly specified valve springs on the Phantom III model. | ||
| View original record | Hs/Swdl.15/KW.8.6.36. Phantom III Valve Springs. Since the Phantom III has been in production the wrong specification of valve springs have been fitted. The mistake came about in the following manner.… | ||
| scan0117 | Request to determine the Brinell hardness of eroded valve seats after endurance tests. | ||
| View original record | To Hs/Swdl. x 354 Hs/Rm.19/KW.12.6.36. We should like to know the Brinell of the valve seats which have eroded on all endurance tests. Hs/Rm. | ||
| scan0118 | Phantom III valve failure during a 20-hour endurance test and comparison with a strengthened 25/30 HP valve. | ||
| View original record | X354 To E. Hs/Swdl.8/KW.2.7.36. Phantom III Valves. After 20 hours endurance running on a Phantom III unit fitted with standard E.87424 exhaust valves, No. 2 B. side cylinder valve head broke off. The… | ||
| scan0119 | Failure of the latest type of outer valve springs on a Phantom III. | ||
| View original record | x354 LE Smith What about stress range? P Hs/Rm from Mx. Mx/T8.7.38/M PHANTOM III VALVE SPRINGS We have had a failure of some of the latest type outer valve springs. We commenced fitting these springs… | ||
| scan0120 | Concerns over broken white valve springs on the Phantom III model. | ||
| View original record | +354 Swell. Should take our history of broken valve springs of the type we have standardised on the test bed. What springs were fitted to 35EX & 34EX? Rm S/W. To EX. from Sg. copy to E. copy to Hs.… | ||
| scan0121 | Phantom III valve spring failures and investigation. | ||
| View original record | X354 FILE. Hs/Swdl.15/JH.29.7.36. Phantom III Valve Springs. Of the type standardised; E. 87498 outer and E.86364 inner springs, there have been 2 failures on the test bed, 1 outer and 1 inner. 35-EX.… | ||
| scan0122 | Micro-examination report on failed outer valve springs from a Phantom III sales trial car. | ||
| View original record | X354 Micro Examination Report. M.1172. Laboratory. To By/Ogh. [text crossed out] c. to Hs/Rm. o. to Sft/Mr.Base. [text crossed out] H1.6/WJ.29.7.36. FAILED OUTER VALVE SPRINGS FROM PHANTOM 111 - 32… | ||
| scan0123 | The supply and examination of Phantom III valve springs. | ||
| View original record | X354 S/W. DI. D. " to Sg. c. " Hs. c. " Hy. c. " W. c. " JLE re- Phantom III Valve springs. Sg has passed me your BY/Cgh.1/MC30.7.36, and with regard to your suggestion that you should send to LH two… | ||
| scan0124 | Investigation into the cause and remedy for broken Phantom III valve springs. | ||
| View original record | X354 Sg. o.E. c.Hs. o.Hy. o.Mx. BY/Cgh.1/MC.30.7.36. Re: Phantom III Valve Springs. Further to BY/Cgh.11/MC.27.7.36., we have had the broken valve springs taken from 34EX. carefully examined and find… | ||
| scan0125 | Requesting specially selected valve springs for a Phantom III trials car as a precaution against breakages. | ||
| View original record | X354 S/W. BY/Cgh. [Struck through] c. to Sg. [Struck through] c. " E. c. " Hs. c. " Hy. [Struck through] c. " Mx. [Struck through] c. " JLE [Struck through] Cx4/KW31.7.36. Phantom III Valve Springs.… | ||
| scan0126 | Investigation into worn Phantom III tappet adjusting screws, concluding the cause is lack of lubrication. | ||
| View original record | SWDL Peden 354 Sg. c. E. c. Hs. o. Hy. c. Mx. BY/Cgh.7/W.4.8.36. "Phantom III" : Tappet Adjusting Screws. With reference to the tappet adjusting screws which were returned to us on account of wear… | ||
| scan0127 | Examination of six 30-HP oil relief valves taken at random from the works. | ||
| View original record | To R. c. to HY. c. to D.T. c. to RX. c. to HE/Wm. +554 Ha/GWH.17/JH.7.8.36. 30-HP Oil Relief Valves. As suggested I have examined, along with Mr. Scott, 6 release valves in the Works taken at random.… | ||
| scan0128 | Request to manufacture a set of Phantom III valve springs and washers using two different types of wire. | ||
| View original record | x354 To RHC. Hs/Smth.8/JH.18.8.36. Phantom III Valve Springs. Will you please make us up a set of springs and spring washers to Rm192/3/4 attached. Half the springs should be in S/CV. and the other… | ||
| scan0129 | Necessity of hydraulic tappets on the Phantom III. | ||
| View original record | X 354 To E. from Rm. c. to Sg. c. to Wor. c. to By. c. to Da. c. to Mx. Hs/Rm.3/KW.2.9.36. Hydraulic Tappets on the Phantom III. On the Ph.II, where an aluminium head was used with a cast-iron block,… | ||
| scan0130 | Phantom III valve gear tappet clearance figures under various operating temperatures. | ||
| View original record | To EH. c. to EG. c. to Moz. c. to Ey. c. to Da. c. to MX. Re/cwdl1.14/JB.1.2.36. Phantom III Valve Gear. In conjunction with the fitting of standard type of tappets and deleting the Hydraulic… | ||
| scan0131 | Endurance test report on Bentley unit exhaust valves with and without chromium plating. | ||
| View original record | (2) Hs/Swdl.14/JH.1.9.36. We have recently carried out an endurance on the Bentley unit with S/SLV exhaust valves both with and without chromium plated stems. The endurance was carried out at the… | ||
| scan0132 | Technical note on experiments with valve and tappet clearances, noise, and wear on Phantom and Bentley units. | ||
| View original record | (3) Hs/smdl.14/JM.1.9.36. Reduced guide clearance controls the valve on keeping square on its seat, the tilting of which is responsible for a lot of tappet noise. Less liability of oil getting down… | ||
| scan0133 | Bottom tappet misalignment with the camshaft causing cross-bedding and tightness in the guide. | ||
| View original record | (4) Hs/Swdl.14/JH.1.9.36. As pointed out to Mr. Elliot we have found several instances where the bottom tappets do not line up truly with the camshaft causing cross-bedding. This is due to… | ||
| scan0134 | List of temperature-related clearance and expansion settings for a Bentley 25/30 model. | ||
| View original record | Bentley a 25/30. water up to 60°C as quickly as possible relative to cold setting clearance increases. + .002 water and oil up to 60°C, relative to cold setting + .001 (1) Expansion with KE.965 valves… | ||
| scan0135 | Stresses of tapered valve springs on the 'Phantom III' and recommending a switch to parallel springs for improved safety. | ||
| View original record | X 354 [Text crossed out] [Text crossed out] c. Hs. BY/Cgh.1/W.4.9.36. "Phantom III" Valve Springs. Further to BY.12/G.26.8.36, although the stresses by calculation do not appear to be excessive we… | ||
| scan0136 | History and experimental use of hydraulic tappets on the Phantom III engine. | ||
| View original record | X354 [Signature] Swdl Hs/Rm. from E. c. Sg. Wor. By. Da. MX. Hs/Swdl. E/JNR. E/Psn. E.6/HP.9.9.36. Hydraulic Tappets on Phantom III. We are very interested to receive the results of the experiment… | ||
| scan0137 | Modifications to address tappet grooving, camshaft scoring, and alignment issues. | ||
| View original record | - 2 - With regard to the tappets grooving and the camshafts scoring, as reported on page 3, we agree this must be due to some extraneous cause. As mentioned to you we believe it would be beneficial to… | ||
| scan0138 | Design and failure of Phantom III valve springs, with handwritten queries. | ||
| View original record | y354 Lt. Smith from E. C. Wor. Hs. By. Handwritten notes: ① If the springs surge what limit - and, is there to the stress range ② Surely, 30,000 to 81,000 is higher than Americans use. ③ How can we… | ||
| scan0139 | Carbon steel spring failures, comparing American and English methods, and detailing stress figures for modified Phantom III valve springs. | ||
| View original record | (sheet 2) difference lay in the material which was of carbon steel but which was free from the decarburisation defects present in the English variety as Hl's examination showed. It would appear that… | ||
| scan0140 | History of valve spring changes and development for the Phantom III engine. | ||
| View original record | (sheet 3) The history of the valve spring changes on Phantom III production as we understand it took place is as follows:- Spring No.(1). E.87952 - This is the highest load spring and was changed… | ||
| scan0141 | Page discussing cam form curves, spring load, and hydraulically controlled tappets. | ||
| View original record | (sheet 4) cam form curves, and this reacts on the spring load required and the characteristics of the spring, particularly with hydraulically controlled tappets. Such a development we also have in… | ||
| scan0142 | Modifications to the Phantom III engine valve gear to reduce overoiling. | ||
| View original record | F. DODD. Can we issue a preliminary report yet? Rm X354 Hs/Rm. G. Mtx. E.2/HP.17.9.36. re Phantom III Engine. We should like to know if you have had any beneficial results from the shield on the valve… | ||
| scan0143 | Failure of chrome vanadium valve springs, especially under extreme cold conditions. | ||
| View original record | Sg. c. Wor. c. Hs. o. D. x354 BY.1/G.17.9.36. Grey - what is the truth about these stresses Rm RE: VALVE SPRINGS. ---------- Referring to Sg.5/E.14.9.36. I certainly do not subscribe to the opinion… | ||
| scan0144 | The quality and testing of American hard-drawn wire compared to domestic supply. | ||
| View original record | - 2 - quite probable the Americans produce hard drawn wire more carefully and accurately than is possible at the moment in this country. This opinion can be easily verified or otherwise by buying some… | ||
| scan0145 | Proposal to modify the Phantom III Relief Valve due to manufacturing difficulties. | ||
| View original record | Swdl. Do we agree with this? BY c. Sft. Mx. Hs/Rm. E/JNR.2/HP.17.9.36. Rm Phantom III Relief Valve. The Works are having trouble in making the seat for the non return valve secure in the body. To… | ||
| scan0146 | Agreeing to modification LeC.5275 and discussing issues with push-in versus screw-in valve inserts. | ||
| View original record | FILES. x354 21th September, 1936. We agree with modification LeC.5275, will instruct for car and bed units, also get one sent out for 35-EX. Originally both main and relief valve inserts were a push… | ||
| scan0147 | Plans for research into valve gear and valve springs for various engines, beginning with the Phantom III. | ||
| View original record | Hs. from E. c. Sg. Wor. By. E/Psn. x352 L.E.Smith Seale E.7/HP.1.10.36. re Valve Gear and Valve Spring Research. In connection with the research work we are projecting on valve gear and springs, we… | ||
| scan0148 | Sheet 2 of a document discussing disconnecting a crank and ensuring oil supply. | ||
| View original record | (sheet 2) disconnected from the crank for this object. A supply of pressure oil for the valve gear would be ensured by leaving the oil pump drive in position. E. | ||
| scan0149 | Confirming arrangements for valve gear research on a Ph.III engine unit. | ||
| View original record | X 354 To E. c. to Wor. c. to Hy. Hs/Rm.3/KW.3.10.36. Valve Gear Research. Referring to E.7/HP.1.10.36. This is to confirm our discussion that you are in agreement with the arrangements now in hand to… | ||
| scan0150 | Valve gear rig tests to trial the use of plain carbon wire due to the cost of valve spring wire. | ||
| View original record | C O P Y. To EJJ. c. to Hy. Hs/Rm.6/KW.1.10.36. Valve Gear Rig Tests. In view of the present cost of valve spring wire, we are undertaking a series of experiments to enable design to modify our valve… | ||
| scan0151 | Five required modifications and trials for the Phantom III. | ||
| View original record | To RHC. Phantom III. (1) On account of excessive wear on the tappet adjusting screw ball pads in the push rod cups, the design sent through LeC.5215 with alternate schemes 1 and 2 which we instructed… | ||
| scan0152 | Request to fit valve springs to a Ph.III No.6 engine and produce cheaper trial springs for a Bentley. | ||
| View original record | To RHC. X354 Hs/Swdl.6/KW.7.10.36. Valve Springs. Before Ph.III No.6 is sent in for endurance, will you please fit valve springs to Rm.192, 3 & 4. Will you also produce 2 sets of Rm.53 springs in… | ||
| scan0153 | Experimental modification to the Phantom III Rocker Mechanism to test low-stress valve springs. | ||
| View original record | 4354 SWDL EDWARDS BY. c. Hs/Rm. RHC. E/JNR.2/HP.10.10.36. Phantom III Rocker Mechanism. We send you herewith LeC.5331 showing the rocker shaft lifted up on a packing piece .5 to accommodate longer… | ||
| scan0154 | Changing the material for low-stress valve springs on the Phantom III from chrome-vanadium to carbon steel wire. | ||
| View original record | 4354 To BY. Copy to BG. RMC. Sft. HS/Rm. E/PSN.1/MN.10.10.36. Handwritten note: Swd (struck through) Edwards} Please note Rm Low Stress Valve Springs - Phantom III. In order to reduce the stresses in… | ||
| scan0155 | Request to manufacture 12 Oil Restricting Plugs for rockers for the Phantom III. | ||
| View original record | X354 To RHC. c. to RHC/HPS. Hs/GWH.1/KW.19.10.36. Phantom III. Will you please make 12 Oil Restricting Plugs for rockers, to Rm.243. Hs/G.W.Hancock. | ||
| scan0156 | Micro-examination report on Phantom lll valve springs made from Brunton's high carbon steel wire. | ||
| View original record | X 354 Micro-Examination Report. M.1207. To Hs/Rm. HL3/AG.20.10.36. Laboratory. Re: Phantom lll Valve Springs in Brunton's High Carbon Steel Wire. In addition to the fissured condition of the surface… | ||
| scan0157 | Valve spring design, materials, and potential suppliers in comparison with American practice. | ||
| View original record | D 354 GRG LE Smith To EV. from E. c. Sg...HS. c. Rm. F/JNR. E/Sn. re Valve Springs. With reference to the subject of valve springs in Carbon steel, we attach herewith a very interesting report from Mr… | ||
| scan0158 | Report discussing two types of springs, their manufacturing methods, and seeking further information from America. | ||
| View original record | (sheet 2) recommended source of supply direct. We take it that there are two types of spring discussed in the report, namely springs hardened and tempered after winding, as in the normal way, and… | ||
| scan0159 | Valve spring fatigue failure, surface decarburization, and the quality of Swedish wire, including a table of stress ranges. | ||
| View original record | September 23rd 1936. We agree with Mr J.D.Pearson's letter of September 7 that surface playes a most important part in fatigue failure of valve springs. Surface decarburization is also an extremely… | ||
| scan0160 | Letter discussing coil heat treatment, stress figures, and a potential design collaboration. | ||
| View original record | (sheet 2) surged coil to coil removing the set and then given a low temperature heat treatment depending on wire size from 600°F to 750°F. All stress figures include Wahl's correction factor. Possibly… | ||
| scan0161 | Letter from the Royal Vice-Consulate for Sweden identifying UK firms who supply oil tempered wire. | ||
| View original record | Royal Vice-Consulate for Sweden. Norwich Union Chambers, Congreve Street, BIRMINGHAM .3. 19th Oct. 1936. Your Ref. Roy/RCB13/MUB, Messrs. Rolls-Royce Ltd., DERBY. Dear Sirs, Replying to your letter of… | ||
| scan0162 | Modifications to the Phantom III valve gear, comparing two schemes for locating tappet guides. | ||
| View original record | 354. SWDL. Rm Will the suggested modification require experimental testing? Sft2/BH.24.10.36. Rm E. Hs. from Sft. PHANTOM III. VALVE GEAR. LeC.5278 and LeC.5293. Memo' Ref. E.5/HP.14.10.36. With… | ||
| scan0163 | Scheme for low-stress valve springs for the Phantom III chassis, specifically a new lighter outer spring. | ||
| View original record | 354 To EY. Copy to Rm. RHC. Da. E/PSN.1/MN.28.10.36. Re Low Stress Valve Springs - Phantom III. Further to our memo. E/PSN.1/MN.10.10.36 in which we issued a scheme for low stress valve springs for… | ||
| scan0164 | Alternative single valve spring scheme for the Phantom III chassis. | ||
| View original record | [Handwritten:] Files E/PSN.3/MN.30.10.36. 354 [Signature] To BY. [Struck through] Copy to Rm. [Circled] Ba. RHC. [Struck through] Phantom III Valve Springs. ------------------------- We send you… | ||
| scan0165 | Issues found during testing a new Phantom III unit, specifically regarding thicker grommets causing potential damage. | ||
| View original record | 354 To By. Rm/Swdl.1/OR.2.11.36. PHANTOM III. We have just had on test a new unit assembled with parts as received from the Works. The valves in the fully lifted position with tappets set normal are… | ||
| scan0166 | Serious issue with the Phantom III valve gear, requesting a meeting in Derby. | ||
| View original record | 354. GWH. from Rm. Rm7/R.12.11.36. P.III. VALVE GEAR. Thank you for your information re P.III valve gear. The situation is so serious that I think you should come to Derby on Monday next and we will… | ||
| scan0167 | Directive to alter exhaust valve specifications for various car and engine units due to failures. | ||
| View original record | 354 To HPS. from Rm/Swdl. Rm/Swdl.11/AP.12.11.36 EXHAUST VALVES. In view of the failures with S/SLV. exhaust valves will you please alter the following specifications and fit KE.965 exhaust valves -… | ||
| scan0168 | Requesting to send tappet push rods, adjusting screws for a P-III, and a set of plugs for a Bentley. | ||
| View original record | 354 N/W. Rm. G D/BP. Br/G16/G.12-11-36. GWH has asked us to send you some tappet push rods, and adjusting screws from a P-III, also a set of Plugs from a Bentley. He is writing you direct in their… | ||
| scan0169 | Previous failures and a new proposal for testing Phantom III roller tappets, including a material change recommendation. | ||
| View original record | Hives 354 SWDL Rm. from E. c. RHC. Da. E/JNR. E/Psn. E.2/HP.13.11.36. re Phantom III Roller Tappets. --------------------- It will be remembered that we have already tried some roller tappets on the… | ||
| scan0170 | Cost analysis and manufacturing suggestion for 25/30HP and Bentley valve rockers. | ||
| View original record | 354 from WHC/GH. RHC/GH.5/IB.16.11.36. 25/30.HP. and BENTLEY VALVE ROCKERS. Piece Number - EB2588/9. These are forged at these Works at a cost of 10d. each. This includes overhead charges and… | ||
| scan0171 | Modifications to the Phantom III valve rockers concerning wear and oil supply. | ||
| View original record | Pailes & 354 Swdt. ~~BY.~~ c. Rm. RHC. E/JNR.1/HP.20.11.36. Phantom III Valve Rockers. In regard to the wear that is taking place on the tappet push rods at the top and bottom ball surfaces, will you… | ||
| scan0172 | Replacement of double valve springs with a single spring on the Phantom III valve gear. | ||
| View original record | Hives To H. E/PSN.3/MN.27.11.36. Copy to Rm. Ba. E/JNR. 354 FWJL Re Phantom III Valve Gear. With the deletion of the hydraulic tappet mechanism on the Phantom III valve gear, it should be possible to… | ||
| scan0173 | Request to have six bushes made from an attached drawing to address a Phantom III valve issue. | ||
| View original record | 354 HPS. from Rm/KFS. Rm/KFS11/R.1.12.36. Will you please have six bushes made to the attached drawing, Rm.267, in conjunction with P.III valve trouble. Rm/KFS. | ||
| scan0174 | Request to manufacture two sets of sodium-filled exhaust valves for a Phantom III engine. | ||
| View original record | To HPS. from Rm/Swdl Y 354. Rm/Swdl.17/AP.4.12.36. PHANTOM III. Will you please make two sets of exhaust valves in KE.965 stellited, to the following specification, sodium filled,in an endeavour to… | ||
| scan0175 | Phantom III short duration camshaft for running with large tappet clearances. | ||
| View original record | 354 To BY. Copy to Ba. Rm. MX. RHC. Rm/Swdl. ------------------ Phantom III Short Duration Camshaft for Running with Large Tappet Clearances. ---------------------------------------------------- We… | ||
| scan0176 | Test results for Phantom III tappets, recommending new fittings and weaker springs. | ||
| View original record | 354 To HPS. from Rm/Swdl. Rm/Swdl.8/AP.9.12.36. PHANTOM III. TAPPETS. In view of the tests we have carried out on bottom tappets resulting in poor condition of both 'Hykro' and S/ZN (cloudburst)… | ||
| scan0177 | Tests comparing different types of bottom tappets for the Phantom III engine. | ||
| View original record | 359 To Hs. from Rm/Swdl. c. to E. c. to By. c. to Da. Rm/Swdl.9/AP.9.12.36. PHANTOM III BOTTOM TAPPETS. Further to our report Hs/Swdl.14/JH.1.9.36., tests have been carried out with regard to bottom… | ||
| scan0178 | Tappet and camshaft wear after endurance testing, with proposals for future tests and hardness comparisons. | ||
| View original record | -2- All the Hykro tappets, however, were in a terrible condition with flats and score marks and the camshaft in a similar condition which is scrapped. This after 4 hours endurance running, at 4000… | ||
| scan0179 | Investigation into valve mechanism trouble and misfiring on a PIII model during a cold start. | ||
| View original record | To RM. Redes 354. 9/12/36. Trouble Valve Mechanism on PIII While Starting from Cold. Considerable trouble has been experienced with misfiring on the PIII while starting up from cold. To determine the… | ||
| scan0180 | Analysis of valve sticking due to oil starvation in bearings and the design of a new bush to resolve the issue. | ||
| View original record | (2) When an engine is stopped some of its Valves are in the open position, and in this particular case these are the valves which give the most trouble. This is so because if the engine is left to… | ||
| scan0181 | Experiment comparing standard and RM26 bushes, noting their effect on valve closure and suggesting a conclusive test on a PIII car. | ||
| View original record | (3) The rig was fitted with four RM26) bushes and two standard for a comparison and again subject to a night's rest. On rotating the mechanism next day it was noticed that the four eccentrics… | ||
| scan0182 | Blueprint of a rocker pillar bush with dimensions and material specifications. | ||
| View original record | RM 267 1.047 +5 UNDERCUT 1.062 DIA -5 .524 .100 WIDE .550 +5 1.123 DIA -1/2 .9697 DIA +1/2 .025 DIA HOLE 8 HOLES DRILL .062 DIA +10 45° CHANFER BOTH ENDS .025 DEEP 16 OIL GROOVES EQUALLY SPACED .035… | ||
| scan0183 | Hand-drawn diagram illustrating a rig setup for conducting valve tests. | ||
| View original record | OIL TO ROCKERS IN TANK OF ICE WATER PIPE TO CYL. HEAD OIL GAUGE ICE BOX CYL. HEAD. CAM SHAFT PIII DUMY ENGINE. QUARTER ROCKER SHAFT. COMPLETE STARTING HANDLE ON CAM SHAFT RIG FOR VALVE TESTS K.S. | ||
| scan0184 | Investigation into cold starting trouble and engine misfiring related to PIII valves and fittings. | ||
| View original record | To: RM. PIII Valves and Fittings Cold Starting Trouble. 11/12/36 The first 6 rockers on B side Cyl. Head on 37EX Car were fitted with RM267 bushes, the remaining rockers were assembled as standard.… | ||
| scan0185 | Test observing the wrapping effect on bearing faces when a new, slightly oval rocker and eccentric are fitted. | ||
| View original record | (2) Another test showed, that if a new bush was fitted with a slightly oval Rocker and eccentric, and a very small upward load applied to the eccentric arm. - the arm would move upwards away from the… | ||
| scan0186 | Lubrication of rocker adjusting screws for the Phantom III engine. | ||
| View original record | pw/as [crossed out] c. Rm. [crossed out] c. Hw. [crossed out] c. Rm/GWH [crossed out] 354. Miller [handwritten] Swell - [handwritten] BY.9/G.11.12.36. PHANTOM 111 - RE: LUBRICATION OF ROCKER ADJUSTING… | ||
| scan0187 | Experimental trial of new lower stress valve springs for the Phantom III engine. | ||
| View original record | To BY. [crossed out] Copy to Rm. Da. HPS. [crossed out] Rm/Swdl. E/PSN.2/MN.11.12.36. 354 Phantom III Valve Gear without Hydraulic Tappets. We send you herewith LeC.5417 of lower stress valve springs… | ||
| scan0188 | Modification notice for the Phantom III valve gear, concerning valve guides, washers, and springs. | ||
| View original record | To HY. Copy to WHS. Rm. Des. Pay/Cost. 354. E/PSN.4/MN.17.12.36. Phantom III Valve Gear. We send you herewith LoC.5432 of a modification to the valve guides on Phantom III, to use the same top washer… | ||
| scan0189 | Testing various bushes to resolve sticking issues with Phantom III valves and fittings during cold starting. | ||
| View original record | FILE. 354 To Rm. 14.12.36. Phantom III Valves and Fittings. Cold Starting. With regard to the sticking bushes on Ph.III cars, Rm.267 bush has prooved very satisfactory both on the rig and on the… | ||
| scan0190 | Blueprint for a bush for PIII rockers. | ||
| View original record | RM 273 1 HOLE .025 DIA 1.047 -5 .524 +-5 .550 +-5 .187 8 HOLES DRILL .062 DIA 1.123 DIA +-1/2 .9697 DIA +-1/2 CHAMFER .025 AT 45° BOTH ENDS .125 +-1/4 .125 +-1/4 .125 +-1/4 UNDERCUT 1.062 DIA -5 END… | ||
| scan0191 | Blueprint for a Bush for PII Rockers. | ||
| View original record | RM 274 1 HOLE .025 DIA 1.047 .524 ± .015 .550 8 HOLES DRILL .062 DIA 1.123 ± .004 .9687 +.001 -.002 CHAMFER .025 AT 45° BOTH ENDS .847 UNDERCUT 1.062 DIA END FACES MUST BE SQUARE WITH FINE LIMIT… | ||
| scan0192 | Design blueprint for a Bush for PIII Rockers. | ||
| View original record | RM 267 1 HOLE .025 DIA 1.047 .524 ±5 .550 ±5 8 HOLES DRILL .062 DIA 1.123 .9697 DIA .078 CHAMFER .025 AT 45° BOTH ENDS UNDERCUT 1.062 DIA. .100 WIDE +10 .890 ±10 16 OIL GROOVES EQUALLY SPACED. .035… | ||
| scan0193 | Request to manufacture a set of chill cast, cast iron bottom tappets for a Phantom III engine. | ||
| View original record | 354. To HPS. from Rm/Swdl. Rm/Swdl.11/AP.17.12.36. PHANTOM III. Will you please make a set of bottom tappets in chill cast, cast iron. Similar tappets were made in the early days of Ph.III. and though… | ||
| scan0194 | Modifications to the Phantom III rockers, specifically the deletion of hydraulic operation. | ||
| View original record | Folder 354 Swdl- BY. c. Rm. HPS. E/JNR.1/HP.22.12.36. Phantom III Rockers. -------------------- Please receive herewith:- LeC.5441 showing the rockers and tappets with the hydraulic operation deleted.… | ||
| scan0195 | Simplification scheme for the oil pipes and relief valve for the Phantom III ordinary rockers. | ||
| View original record | Riles (crossed out) 354. Swell BY. c. Rm. HPS. E/JNR.1/HP.24.12.36. Phantom III Ordinary Rockers. In connection with the scheme LeC.5441 for the above, we send you LeC.5444 showing the simplified oil… | ||
| scan0196 | Tests on alternative valve spring materials and designs for Bentley and Phantom III engines to reduce cost. | ||
| View original record | To By. from Rm/Swdl. c. to Hs. c. to E. c. to RHC. 354. VALVE SPRINGS. Tests have recently been carried out both on the Bentley and Phantom III. with springs in "Swedish low carbon wire" and Brunton's… | ||
| scan0197 | Analysis comparing the cost and performance of different valve springs, proposing a new universal spring made from Swedish wire. | ||
| View original record | -2- Rm/Swdl.1/AP.24.12.36. Bentley springs made to Rm.260., are particularly free from surge periods throughout the speed range as seen by the "Rotoscope" in comparison with our standard EB.175… | ||
| scan0198 | Technical drawing detailing the specifications and dimensions for a valve spring with variable coil spacing. | ||
| View original record | SPACING OF COILS. DIMN'S A. B. & C. SHOW HOW THE SPACING BETWEEN COILS GRADUALLY INCREASES. IT IS ONLY THE SPACING OF THE FIRST THREE COILS THAT VARIES IN THIS WAY. THE SPACING BETWEEN THE REMAINING… | ||
| scan0199 | Report from France regarding Phantom III engine trouble with hydraulic tappets and valve clearances. | ||
| View original record | Handwritten: To Lee Handwritten: Swell - Please see production & then discuss with me Handwritten Initials: Rm Handwritten Number: 354. HOTEL DE FRANCE. CHATEAUROUX. Indre. France. 5th January 1936.… | ||
| scan0200 | Examination of a noisy and burst tappet on chassis 54-EX, attributing the issue to lubrication failure and proposing solutions. | ||
| View original record | 354 Redler BY.1/G.9.1.37. Hd. RHC. Mx. Rm. c. BY/CS. Swolf- NOISY TAPPET - CHASSIS NO. 54-EX. I have examined the tappet from the above chassis which is burst in the cup at the upper end, and agree… | ||
| scan0201 | Modifications to the valve gear lubrication system for the Phantom III engine. | ||
| View original record | Hs. from Rm/Swdl. c. to Sg. c. to E. c. to By. Rm/Swd11/R.11.1.37. VALVE GEAR LUBRICATION (P.III). The following modifications to the lubrication of the valve tip and the push rods as developed by GWH… | ||
| scan0202 | Recommending modifications to the Phantom III valve gear to address known issues. | ||
| View original record | 354. Hs. from Rm. c. to Sg. c. to E. c. to By. Rm.2/R.11.1.37. P.III VALVE GEAR. We recommend that we adopt the modifications enumerated in the attached memo forthwith. The situation at present is… | ||
| scan0203 | Modifications to the Phantom III Valve Gear regarding over-oiling and oil consumption. | ||
| View original record | 354 To Rm. from Sg. re P.III Valve Gear. Sg11/E12.1.37 Copy to Hs.E.Bl. I am in receipt of Rm.2/R.11.1.37. I quite agree the recommendation made provided the others concerned agree. This modification,… | ||
| scan0204 | Controversial costs and a simpler scheme for the Phantom III Valve Gear. | ||
| View original record | 354 E. from Rm. Rm16/R.20.1.37. PHANTOM III VALVE GEAR. The matter of costs still remains controversial, and though Ws. appeared fairly enthusiastic over the fitting of butting wedges RHC. appeared to… | ||
| scan0205 | Investigations into over-oiling problems with the Phantom III Valve Gear and proposing a new design for valve wedges. | ||
| View original record | Handwritten: Swdl. Can we get the true story of costs. Rm Typed: Rm. c.c. Sg. Hs. RHC. HPS. JNR. E.5/HP.12.1.37. Phantom III Valve Gear. Referring to Rm.2/R11.1.37, although we agree that recent… | ||
| scan0206 | Short note regarding very small supplies of oil on 24 rocker levers. | ||
| View original record | very small supplies of oil on 24 rocker levers E. [Signature] | ||
| scan0207 | Modifications for the Phantom valve gear lubrication system to reduce wear and overoiling. | ||
| View original record | To Hd. (For Depot Sheet). 354 Rm/Swdl.9/JH.22.1.37. PHANTOM VALVE GEAR LUBRICATION. The following modifications have been standardised to improve the lubrication of the push rod ball-ends to reduce… | ||
| scan0208 | Issues with Phantom III hydraulic tappets and proposing changes to clearance tolerances. | ||
| View original record | To By. from Rm/Swdl. c. c. to E. 3524 Rm/Swdl.4/AP.22.1.37. PHANTOM III. HYDRAULIC TAPPETS. Trouble is being experienced, mainly with cars in service, of the valves sticking open due to binding of the… | ||
| scan0209 | Replying to a suggestion about deleting the cup in a valve spring top washer and discussing a new scheme. | ||
| View original record | To G.W.Hancock Esq., C/O Hotel De France, Chateauroux, Indre, FRANCE. Rm/Swdl.1/AP.23.2.37. Rm. being away I am replying to your memo of the 6th. inst. Rm/GWH.6/JAB. in which you say you have received… | ||
| scan0210 | Investigation into misfiring on a Phantom III caused by a partly unscrewed exhaust valve insert. | ||
| View original record | J 354. To By. from Rm/Swdl. c. to E. Rm/Swdl.3/AP.24.2.37. PHANTOM III. VALVE INSERTS. During a recent investigation of misfiring troubles on 36-EX. it was found that one of the exhaust valve inserts… | ||
| scan0211 | Further design for Phantom III Valve Spring Wedges to prevent oil running down the valve stem. | ||
| View original record | ~~SWDL~~ PLEASE LET ME SEE SCHEME Rde 354 BY. c. Rm. HPS. E/JNR.1/HP.27.1.37. Phantom III Valve Spring Wedges. We send you herewith LeC.5494 showing a further design for preventing the oil from… | ||
| scan0212 | Sticking exhaust valve in a 35-EX Phantom III, including valve clearance loss measurements. | ||
| View original record | 354 HOTEL DE FRANCE. CHATEAUROUX. Indre. France. IMW Rm/GWH/S/JAB. 1st March 1937. To.. Rm/Gry. c.c. Rm/GWH. 35-EX. PHANTOM III. Running was terminated by the sticking open of A.6 Exhaust valve. Both… | ||
| scan0213 | Description of work carried out on a Phantom III chassis to address top overoiling issues. | ||
| View original record | 354 Mx. from Rm/Swdl. Rm/Swdl.8/R.9.3.37. PHANTOM III - TOP OVEROILING EXPERIMENTS. The following is a description of the work carried out on 3.AZ.170 Leonard's car, and which we understand you are… | ||
| scan0214 | Drain pipe modifications and fuel consumption results for chassis 3-AZ-170. | ||
| View original record | -2- Rm/Swdl.8/R.9.3.37. (3) The 6 drains run into a gallery pipe behind the exhaust manifold similar to LeC.4724. (4) A union is brazed at the rear end of each gallery pipe and a coupling pipe with… | ||
| scan0215 | Recommending the use of felt pellets over new valve wedges based on rig testing results. | ||
| View original record | 354 To HPS. Rm/FD.18/JH.24.3.37. Re Valve Wedges for P.III to LeC.5495. ✓ We have tested two of these valve wedges on our rig and so far as we could tell they were quite efficient, we cannot tell on… | ||
| scan0216 | Standardisation of parts for the Phantom III, concerning the clearance between inlet valves and guides. | ||
| View original record | RR 755 (5H) 20396 21/7/36 J.W.S. COMPLETED 25.3.37. PHANTOM III. STANDARDISATION of PARTS Date: 16.3.37 (crossed out) 25.3.37. X No. 354. Drawing No. Part List Description of Parts. CLEARANCE BETWEEN… | ||
| scan0217 | The standardization of tappet valves and guides for production on the 'C' Series chassis. | ||
| View original record | The entire document is a mirror image. The text below has been transcribed as if viewed normally. Top right: A.M.F.(T) 2058 (11/34) A.W.I. PART II. STANDARDIZATION of PARTS. Top Table: Description of… | ||
| scan0218 | New design for Phantom III valve rockers, noting a known fault with excessive oil flow. | ||
| View original record | He. from Rm/GWH. RHO. E. Da. By. Mx. _______ 354 Rm/OWHB/R.16.4.37. NEW TYPE P.III VALVE ROCKERS. The scheme for new rockers with deleted hydraulic tappers Lec.5441 has been designed with the fault… | ||
| scan0219 | Test report on the wear of bottom tappets for a Phantom III Unit No.8 after a one-hour endurance test. | ||
| View original record | Files. To Rm/Swdl. 356 19.4.37 Phantom III. Unit No.8. Tests have been carried out to determine the wear of the bottom tappets on the above unit. This unit has a special camshaft LeC.5320, having a… | ||
| scan0220 | Cost-saving modification to the tappet block and clamp for the Phantom III. | ||
| View original record | To Rm/Gry. from HPS. 354. HPS.7/VS.22.4.37. MODIFIED TAPPET BLOCK AND CLAMP LeC.5371. We have discussed with RHC/Cy. the question of cost regarding the above, and give below for your perusal his… | ||
| scan0221 | Modifications and testing of a tappet block and clamp for a camshaft. | ||
| View original record | P3 valves 354 To E. from Rm/Swdl. c. to HPS. Rm/Swdl.3/BJ.24.4.37. Modified Tappet Block and Clamp, LEC.5371. Now that we have tried the small base circle camshaft, any modifications that are… | ||
| scan0222 | Test report on Phantom III valve gear, comparing a small base circle camshaft with different tappet materials. | ||
| View original record | To E. from Rm/Swdl. c. to RHC. c. to By. c. to HPS. Rm/Swdl.1/AP.26.4.37 354 PHANTOM III. VALVE GEAR. We have tested the small base circle camshaft (LeC.5320 - .950 dia.) in order to see if the… | ||
| scan0223 | Over-oiling issue on the Phantom III model and recommending a course of action regarding close clearance valves. | ||
| View original record | W/S. c. from Hs. c. Mx. c. Rm. 35 H Hs10/R.30.4.37. OVER-OILING ON P.III. The seriousness of this situation is realised in Derby. Both the Experimental Department and Mx. recommend that we should not… | ||
| scan0224 | Standardisation of parts for the Phantom III, specifically the housing of a non-return ball valve and seat. | ||
| View original record | RR 755 (5H) 20396 21/7/36 J.W.S. COMPLETED 1.6.37. PHANTOM III. STANDARDISATION of PARTS Date: 3.5.37, 15.4.37. X No. 354. Drawing No. LeC.5275 Part List Description of Parts. Housing of non return… | ||
| scan0225 | Cost estimation for new tooling for a standardized non-return and relief valve housing on the Phantom III. | ||
| View original record | PHANTOM III STANDARDIZATION PARTS Description of Part: Housing of non return and relief valve. Original: Ball valve seat coming adrift. Report of Experimental Dept: Estimated cost of new tools… | ||
| scan0226 | Check of the valves and valve gear on a specific car. | ||
| View original record | To HPS. from Rm/FD. 354. Rm/FD.4/BJ.3.5.37. 30 Ex. Will you please have the valves and valve gear checked over on the above car. The heads have been removed and handed to HPS/Warwick. Rm/FD. | ||
| scan0227 | Requesting the fitment of standard Phantom III double valve springs to a test unit. | ||
| View original record | To HPS. 35h Rm/Mths.2/JH.5.5.37. Phantom III No.6 Unit. Will you please arrange to have standard Phantom III double valve springs fitted to this unit as early as possible. We find it is impossible to… | ||
| scan0228 | Suggestion to restrict flow through the Phantom III valve gear filter using an orifice. | ||
| View original record | Files F.Dooo Comments Rm. Rm c. Hs. Mx. Rm/FD. 354 E.6/HP.21.5.37. Phantom III Valve Gear. This is to confirm my suggestion to try restricting the flow through the valve gear filter on Phantom III by… | ||
| scan0229 | Requesting altered E.85506 valve guides for the Phantom II valve gear to reduce noise. | ||
| View original record | To RHC. 354 +1113 Rm/GWH. - Cricklewood, 27.5.37. Phantom II Valve Gear. We are trying out for valve noise lightened exhaust valves. To do this it is necessary to alter the valve guide to suit. Would… | ||
| scan0230 | Experimental modification to valve spring RS.500 to increase its seat load. | ||
| View original record | To HPS, Copy to Ey. Rm. Rm/Swdl. 354 E/PSN/AHF.1/M.29.5.37. PH.III. VALVE SPRINGS. Modification to Spring RS.500 to give 45 lbs. Seat Load. As a result of test on Valve Spring RS.500 which gave a… | ||
| scan0231 | Preliminary tests and proposed modifications for the Phantom III solid rockers and non-hydraulic valve gear. | ||
| View original record | E. from Rm/Swdl. c. Hs. c. By. c. Da. c. Mx. 354 Rm/Swdl5/R.1.6.37. PHANTOM III SOLID ROCKERS. Non-hydraulic Valve Gear. Preliminary tests have been carried out with the above valve gear (LeC5441)… | ||
| scan0232 | Oil feed to rockers, valve operation, and associated noise issues, including tappet clearance and camshaft design. | ||
| View original record | -2- (3) The oil feed to the valve tip through the rockers was also in excess of what was desired in view of our past troubles. This was metered down to what we consider correct by drilling the hole in… | ||
| scan0233 | Analysis of hydraulic systems versus solid rocker gear, comparing power, quietness and performance. | ||
| View original record | -3- In the present hydraulic system the valve is not free to do this owing to the friction imposed by the mechanism holding the rocker in close contact with the valve stems throughout the "cycle". We… | ||
| scan0234 | Camshaft timings, valve bounce, and cost estimations for different engine configurations. | ||
| View original record | -4- Rm/Swdl.5/R.1.6.37. The following timings indicate what is meant regarding the toe and main accelerations:- LeC.5401 Camshaft. Main Accelerations. At .012 clce.running timing. IO 9° PTDC IO 26°… | ||
| scan0235 | Blueprint showing a cross-section for a modification to a rocker part. | ||
| View original record | RM. 381. MODIFICATION TO ROCKER Pt.TTT DRILL .031 DIA. ALL OTHER DIMENSIONS TO E88760 NMTS 3-8-32 | ||
| scan0236 | Blueprint detailing a modification to a Rocker Bush for a Phantom III. | ||
| View original record | RM. 382 1 HOLE DRILL .0625 DIA IN POSITION BEFORE SWEATING CAP IN END OF ROCKER ALL OTHER DIMENSIONS TO E88775 MODIFICATION TO ROCKER BUSH PH III MTHS 24-5-37 | ||
| scan0237 | Blueprint for a main pressure valve spring for use with a relief valve. | ||
| View original record | SPRING, MAIN PRESSURE VALVE PHANTOM. TO BE USED IN CONJUNCTION WITH LEC 5448 RELIEF VALVE. R.M.384. 2.50 FREE LENGTH. .525 DIA OUTSIDE. THIS END COIL. GROUND SQUARE. .312 DIA END COIL. .300 R. .125 R.… | ||
| scan0238 | Blueprint detailing the specifications for a low pressure valve spring. | ||
| View original record | RM.385 1.850 FREE LENGTH .495 DIA OUTSIDE THIS END COIL GROUND SQUARE .312 DIA END COIL .125 R .300 R DIA OF WIRE .028" (22 SWG) NO OF WORKING COILS 18.5 TOTAL NO OF COILS 20.0 LOAD WHEN COMPRESSED TO… | ||
| scan0239 | Performance comparison chart for the Phantom III engine under various configurations. | ||
| View original record | PHANTOM III POWER COMPARISON TESTS RUN OPEN EXHAUST AND WITH STD. STROMBERG CARB. CURVE ①: STD. PROD. 6 PORT ENGINE TIMING WITH .020 CLCE I.O. 7° PTDC E.O. 47° BBDC I.C. 42° PBDC E.C. 8° BTDC CURVE ②:… | ||
| scan0240 | Drawing of a Modified Rocker Shaft (Ph.III). | ||
| View original record | MODIFIED ROCKER SHAFT (PH.III) SCALE 1/8 & 2/1 SECTION BB SECTION AA SCALE 2/1 MAXIMUM ALLOWABLE ECCENTRICITY OF BORE .012 MAT. S/D. DRILL .105 DIA TAP 5 B.A. (.126) 43 T.P.I. R.H. DRILL .2656 DIA TAP… | ||
| scan0241 | Request for experimental modifications to Phantom III rocker shafts due to service failures. | ||
| View original record | To HPS. from Rm/Swdl. Rm/Swdl.15/AP.11.6.37 PHANTOM III. 354 Will you please produce the following in connection with Experiments on account of the several rocker shafts that have failed in service.… | ||
| scan0242 | The trial of nitrided exhaust valve stems for the Phantom III to reduce sticking and noise. | ||
| View original record | To HPS. from Rm/Swdl. 354 Rm/Swdl.2/AP.25.6.37 PHANTOM III. We understand that the Aero people are nitriding the stems of the exhaust valves which reduces the tendency to sticking. At the present time… | ||
| scan0243 | To hold-up work on the Phantom III chassis cylinder head and valve fittings. | ||
| View original record | To: H.P.S. c. Rm. c. Rm/Swdl. 354 BY/CS.12/N.27.7.37. Re Phantom III Chassis - Cylinder Head - Section 5050. Valves & Fittings - Sec:5060. LeC.5533 - Valve Springs raised .500 With reference to memo… | ||
| scan0244 | Summary of parts involved in changing from auto-adjusting tappets to solid rockers on a Phantom III chassis. | ||
| View original record | To: Roy/Mrs. c. Rm/Swdl. Handwritten: Wadey 354. BY/CS3/EH.6.8.37. Phantom III Chassis. The following is a summary of parts involved in changing over from Auto Adjusting Tappets to Solid Rockers on… | ||
| scan0245 | Continued parts list for Section 5060, covering valves and fittings with their part numbers and status. | ||
| View original record | BY/CS3/EH.6.8.37 cont'd. (2) Section 5060-Valves & Fittings cont'd. E.84823 Rocker Shaft Pedestal Not required. E.84824 " " " " " E.84827 Distance Piece - Rockers " " E.85325 Plunger Body " " E.85326… | ||
| scan0246 | Parts list for valves, fittings, camshafts, and oil relief components with their status. | ||
| View original record | BY/CS3/EH.6.8.37 cont'd. (3) Section 5060 - Valves & Fittings cont'd. E.88779 Rocker Shaft New. E.88780 Rocker Arm " E.88781 " " E.88783 Rocker Shaft Pedestal {Awaiting decision). E.88447 Exhaust… | ||
| scan0247 | List of parts and queries for engine components including oil relief valves, filters, crankcases, and camshafts. | ||
| View original record | BY/CS3/EH.6.8.37 cont'd. (4) Section 5205 - Oil Relief Valves cont'd. E.88797 Relief Valve Casing. (New, but E.87053DC can be used). E.11230 Taper Pin - Non Return Valve. Not required. E.70781 Joint… | ||
| scan0248 | Query regarding alternative relief valve spring pressures tested for solid rockers. | ||
| View original record | BY/CS3/EH.6.8.37 cont'd. (5) Section 5205 - Oil Relief Valves. Relief Valve Spring Pressures. Alternative springs have been tested for solid rockers. Which springs are required? BY/CS, | ||
| scan0249 | Specification for the Phantom III solid rocker gear and associated components after a 15,000-mile test. | ||
| View original record | To By/CS. from Rm/Swdl. 354 Rm/Swdl.5/AP.7.8.37 PHANTOM III. VALVE GEAR. The following is a specification of the solid rocker gear which is running 15,000 miles test on 32-EX. and should be included… | ||
| scan0250 | Decisions on modifications to the Phantom III valve gear. | ||
| View original record | To By/CS. from Rm/Swdl. 354 Rm/Swdl.5/AP.9.8.37 PHANTOM III. VALVE GEAR. We give herewith decisions regarding the queries of your memo By/CS.3/EH.6.8.37 which, together with our previous memo… | ||
| scan0251 | Simplified design for Phantom III tappets without tappet springs. | ||
| View original record | E. Dept. c. to Rm. c. to RD. Swdl Poles Da.7/G.10.8.37. 354. PHANTOM 111 - SIMPLIFIED TAPPETS WITHOUT TAPPET SPRINGS. Herewith LeC.5667 T Section Tappets in broached guides. Will you please detail and… | ||
| scan0252 | The introduction of non-hydraulic tappets for the Phantom III 'D' Series chassis and the associated scrap costs. | ||
| View original record | Rm 354 Rm. - from RHC/JMW. RHC/JMW.1/JWA.2.9.37. PHANTOM III CHASSIS - TAPPETS. As you are aware, it has been agreed for the non-hydraulic tappets to be introduced on the 1st chassis in 'D' Series due… | ||
| scan0253 | The parts and modifications required to fit solid rocker gear to cars 33-EX and 37-EX. | ||
| View original record | To HPS. from Rm/Swdl. 354 Rm/Swdl.1/AP.11.9.37 33-EX. and 37-EX. It was stated at the Conference that two more cars should be fitted with the solid rocker gear as on 32-EX. We are to inform Hs. by not… | ||
| scan0254 | Production trial instructions and listing associated List of Operations (LOPs) for various engine components. | ||
| View original record | -2- Rm/Swdl.1/AP.11.9.37 (k) LeC.5448 relief valve with springs to Rm.384/5. (1) Simplified oil feed to LeC.5444. When the rush for these 2 sets have been completed, will you please follow up with 2… | ||
| scan0255 | Issues and recommendations for the Phantom III valve gear. | ||
| View original record | To By. from Rm/Swdl. c. By/CS Rm/Swdl.2/AP.18.9.37 PHANTOM III. VALVE GEAR. (1) On fitting several sets of experimental solid valve gear we have noticed that the valve springs when in the fully lifted… | ||
| scan0256 | Modifications and standardisation for the Phantom III valve gear. | ||
| View original record | 354 BY/CS c. Rm/Swdl. c. Rm. BY.17/N.23.9.37. Phantom III - Valve Gear. Referring to Rm/Swdl.2/AP.18.9.37. will you kindly arrange for the modifications suggested to be instructed for production. In… | ||
| scan0257 | Production modifications and standardisation for the Phantom III valve gear. | ||
| View original record | BY/CS c. Rm/Swdl. c. Rm. File 354. BY.17/N.23.9.37. Phantom III - Valve Gear. Referring to Rm/Swdl.2/AP.18.9.37, will you kindly arrange for the modifications suggested to be instructed for… | ||
| scan0258 | Modifications to the Phantom and Wraith valve gear for improved lubrication. | ||
| View original record | 354 346 To By. from Rm/Swdl. c. By/CS. Rm/Swdl.7/AP.1.10.37 Phantom and Wraith Valve Gear. Further tests on the Phantom valve gear with solid rockers indicates that we have been on the low side… | ||
| scan0259 | Modifications for Ph.III valve seat inserts to prevent them from coming loose. | ||
| View original record | To By. from Rm/Swdl. c. By/CS. c. HPS. Rm/Swdl.5/AP.15.10.37. 354 Ph.III. valve seat inserts. Regarding the several isolated cases we have had of exhaust valve seats coming loose in the cylinder heads… | ||
| scan0260 | Instructing to proceed with the trial of Ph.III valve seat inserts for the S/SLV model. | ||
| View original record | To HPS. from Rm/Swdl Rm/Swdl.1/AP.20.10.37. Ph.III. VALVE SEAT INSERTS. Re the trial of valve seat inserts in S/SLV., it has been decided to go forward with this experiment. In order to keep the cost… | ||
| scan0261 | Issues and solutions for hydraulic tappets on the Phantom III. | ||
| View original record | HS. C. Rm. 35H BY.1/G.2.11.37. PHANTOM III - HYDRAULIC TAPPETS. The mileages of cars quoted on the third sheet of Rm.S/R.29.10.37. are incontrovertible. However, tappets in service give trouble, and… | ||
| scan0262 | Endurance test report on Phantom III bottom tappet wear for unit no. 5. | ||
| View original record | File 354 PHANTOM III BOTTOM TAPPET WEAR 29.6.34 to 2.11.37. UNIT NO. 5. (1) 1 hours endurance. Plated tappets. Working as auto tappets. | No. | Thickness of plating. | Treatment. | Condition of… | ||
| scan0263 | The condition of cast iron tappet blocks after endurance testing at various RPMs. | ||
| View original record | -2- UNIT. NO. 1. (4) Cast Iron Tappet blocks. Standard SZN bottom tappets, with exception of A.1 in Ubas. Tappets set at .006" and .008" 1 hours endurance at 2000 R.P.M. | Tappet No. | Condition of… | ||
| scan0264 | The condition of tappets after endurance tests at 3500 and 4000 R.P.M. | ||
| View original record | -3- 1 Hours endurance at 3500 R.P.M. Tappet Nos. | Condition of Tappets. --------------------|------------------------------------------------ A.9,12. B.1,5,8. | Lightly scratched. Groove hardly… | ||
| scan0265 | Endurance test report detailing the condition of engine tappets after running. | ||
| View original record | -4- 1 hours endurance at 4500 R.P.M. Tappet Nos. Condition of tappets. _________________________________________________________________ B.1. A.4. Lightly scratched. Groove hardly perceptible. B.12.… | ||
| scan0266 | Condition report on engine tappets after running tests. | ||
| View original record | -5- Fescolised tappets in No.5 block. Cast Iron tappets in Nos. 2 and 4 blocks. Condition of these after 8 hrs. 30 mins. running:- Cast iron tappets in good condition, very slightly grooved, and a… | ||
| scan0267 | The condition of S/ZN, cloud burst hardened, and plated tappets after a high-speed test run. | ||
| View original record | -6- Condition of S/ZN, cloud burst hardened, and plated tappets after 30 mins. at 4000 r.p.m., 25 mins. at 4250 r.p.m, and 5 mins. at 4500 r.p.m. No. How Set. Condition _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _… | ||
| scan0268 | Summary of tests conducted on various types of bottom tappets. | ||
| View original record | Summary of tests with various bottom tappets. (1) Cast Iron Bottom Tappets, with chilled face. Rockwell C.50-55. Surface of Tappet stays in good condition with slight cross grooving. The camshaft gets… | ||
| scan0269 | Replacement of Rocker Shafts E.86887 with E.89152 for the Phantom III Chassis. | ||
| View original record | To. RHO/RWH. c. Rm/Swdl. Swdl OK 354. File BY/CS2/EH.8.11.37. Re Phantom III Chassis - Valves & Fittings - Sec;5060. With reference to Rocker Shafts E.86887 in S/ZN. which are in the course of… | ||
| scan0270 | Results of a Tappet Setting Test for the 37-EX Phantom III. | ||
| View original record | 354 To Mx. from Rm/IMW. c. Rm/Swdl. Rm/IMW.18/AP.8.11.37. 37-EX.PHANTOM III. Tappet Setting Test. Herewith the tabulated results of our test which are self explanatory. We think that arguments could… | ||
| scan0271 | Test log sheet showing numerical readings for 'A Side' and 'B Side' under cold and hot conditions. | ||
| View original record | 37.Ex. B SIDE. Column Labels: I, E, E, I, I, E, E, I, I, E, E, I Column Numbers: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 OPERATOR I COLD: 6 (red: 7), 7 (red: 8), 7 (red: 8), 7 (red: 8), 6 (red: 6), 7… | ||
| scan0272 | Proposed modification to the Phantom III tappet filter to extend its operational time before cleaning. | ||
| View original record | W/K. To GWH. from Rm/Swdl. PHANTOM III TAPPET FILTER. We have tested out a scheme whereby the tappet filter can be run for a longer time before becoming sludged up. Before issuing a depot sheet,… | ||
| scan0273 | Modifications to the Phantom III valve and ignition timing settings. | ||
| View original record | FILE To By. from Rm/Swdl. c. By/CS. c. LA. c. By/NW. c. Mx. 354 Rm/Swdl.4/AP.12.11.37. Phantom III. Valve Timing. (1)Will you please modify the tappet setting as given on the Timing diagram (E.88761)… | ||
| scan0274 | Modification to address overoiling issues in the Phantom III engine. | ||
| View original record | To By. c. to Hd. c. to BR. c. to La. 354? Rm/Swdl.10/JH.26.11.37. PHANTOM III OVEROILING. With reference to the complaint of overoiling causing smokey exhaust and oiled up plugs as per example the… | ||
| scan0275 | Instruction to check that banjo holes are clear when the tappet filter is cleaned. | ||
| View original record | -2- RM/Swdl.10/JH.26.11.37. book, that when the tappet filter is cleaned the banjo holes be checked for being clear. Rm/L.H.Swindall. | ||
| scan0276 | Comparison photograph of a dirty and a clean Phantom III hydraulic tappet filter. | ||
| View original record | PHANTOM III HYDRAULIC TAPPET FILTER. | ||
| scan0277 | Report recommending a production change to reduce engine overoiling in the Phantom III after successful testing. | ||
| View original record | RE. PHANTOM III OVEROILING We have now tried out the scheme for reducing the oil supply to the rocker mechanism as suggested in Rm/Swdl.10/JH26.11.37 on six chassis. In every case we have been able to… | ||
| scan0278 | Depot sheet discussing overoiling issues on the Phantom III model and proposed modifications. | ||
| View original record | 354 To Hd. from Rm/Swdl. (Depot Sheet) c. to By. c. to LA. c. to Mx. c. to Rm/GWH. c. to By/NW. PHANTOM III. OVEROILING. In view of the success obtained by Br. on chassis 3.CP.104 and LA. on several… | ||
| scan0279 | Blueprint detailing a modification to a Swivel Plug (PH III). | ||
| View original record | RM 475 DRILL .075 DIA (ONE) MOD'N TO SWIVEL PLUG (PH III) FOR OTHER DIMENSIONS SEE E 87380 J.C.R.LEE 10/12/37 | ||
| scan0280 | Deletion of self-adjusting tappets on the Phantom III and an attached article from Autocar. | ||
| View original record | S/dr HS Rom 35H J.S. 10 JAN 1938 Sg. Cx9/KW10.1.38. In view of the fact that we are shortly to delete the self-adjusting tappets on the Phantom III, I thought you might be interested in reading the… | ||
| scan0281 | Article discussing the benefits of self-adjusting tappets for car engines and predicting their widespread adoption. | ||
| View original record | *** Self-adjusting Tappets MY recent remarks on self-adjusting tappets or, rather, the lack of them on most cars, were apparently taken by several readers to mean that I was merely irritated by any… | ||
| scan0282 | Analysis on the possibility of using Wraith type tappets on the Phantom III engine and a suggestion to test the dimensions. | ||
| View original record | Ey. from Rm. c. Da. Da/Jnr. Ey/McStay. Rm/Swdl. 35H Rm8/R.17.1.38. SIMPLIFIED P.III VALVE GEAR. Herewith an analysis that Bowers has carried out to determine possibility of Wraith type tappets on the… | ||
| scan0283 | Proposal for modifying the Phantom III engine with .75' diameter tappets. | ||
| View original record | Rm. BY./B.1/G.13.1.38. PROPOSED PHANTOM lll. WITH .75" DIA. TAPPETS. With rocker ratio increased from standard 1.333 to 1.45, a valve lift of .35" can be obtained, using a valve spring giving a seat… | ||
| scan0284 | List of engineering suggestions for improving engine valvetrain performance. | ||
| View original record | - 2 - BY./B.1/G.13.1.38. (b). Lighten moving parts if at all possible. (c). Consider whether it is permissible to increase stength of valve spring beyond the one assumed, of seat load 50 lbs. and load… | ||
| scan0285 | Introduction and standardisation of bottom tappets for the Phantom III model. | ||
| View original record | 354 To RHC. from Rm/Gry. Rm/Gry.5/MH.29.4.38. P.III TAPPETS. Will you let us know whether any economy can be effected by introduction of bottom tappets to LeC.5667 before the end of 'D' series. It is… | ||
| scan0286 | New design for flat barrel type tappets for the Phantom III engine. | ||
| View original record | BY/NS c. Rm c. Rm/Swdls c. BY/B Files DA/2/G.2.5.38. 354 PHANTOM 111 - FLAT BARREL TYPE TAPPETS. Herewith please receive E.CD.635 Camshaft and Barrel Type Tappets - Phantom 111. The objects of this… | ||
| scan0287 | Costs and implications of introducing simplified broached tappets for the Phantom III 'D' Series. | ||
| View original record | To Rm. From RHC/SB. RHC/SB.2/MJ.3.5.38. PHANTOM 111 TAPPETS. With reference to Rm/Gry.5/MH.29.4.38, it would not be possible to introduce simplified broached tappets to LeC.5667 before 101 in 'D'… | ||
| scan0288 | Comparative cost figure for the Phantom III tappet mechanism. | ||
| View original record | 354 BY/NS. c. Rm. File Da.7/G.19.5.38. SWDL PHANTOM III - TAPPET MECHANISM. Attached is a copy of RHC/CAN.1/LS.17.5.38. being a reply to our request for a comparative cost figure against the cheapened… | ||
| scan0289 | Confirming cost savings for a simplified tappet mechanism for the Phantom 111. | ||
| View original record | Da. from RHC/CAN. RHC/CAN.1/LS.17.5.38. TAPPET MECHANISM - PHANTOM 111. In reply to Da.10/G.3.5.38. we would confirm that the simplified tappets to E.CD.635 offer a saving of approximately £10. 10. 0.… | ||
| scan0290 | Requesting an official order be passed to Richard Klinger Ltd. for 12 Phantom III rocker cover joints. | ||
| View original record | 354 ? To Roy. c. to G/JWH. Rm/Swdl.6/JH.24.6.38. Will you please pass an official order to Richard Klinger Ltd. for 12 Phantom III rocker cover joints which we have ordered from these people in their… | ||
| scan0291 | Technical memorandum regarding modifications to the Phantom III tappet to address wear issues. | ||
| View original record | 354 BY/NS. C. BY. C. Mx. C. Em C. LA. C. RM/Swdl. Files DA.9/G.5.7.38. PHANTOM 111 - TAPPET WEAR. Please receive herewith :- E.CD.782 Modified Tappet, Phantom 111. As a result from the suggestion by… | ||
| scan0292 | Technical note regarding the cam form and valve lift curve for flat tappets on the Phantom III. | ||
| View original record | BY/HS. (Strikethrough) c. Rm. c. Rms/Swell. (Strikethrough) c. BY/Bs (Strikethrough) 354 DA.16/G.7.7.38. Files Swell PHANTOM 111 - CAM FORM AND VALVE LIFT CURVE FOR FLAT TAPPETS. Please receive… | ||
| scan0293 | Feasibility, cost, and implications of modifying Phantom III tappets and washers. | ||
| View original record | To BY. & Rm. From RHC. c. to Da., LA., Mx. SWDL 6/Les RHC.12/MJ.20.7.38. PHANTOM 111 TAPPETS. 354 With reference to By.1/G.6.7.38, the modifications shown on ECD.782 would not be so easy or economical… | ||
| scan0294 | Failure of tappet washers and proposing a new square washer for the Phantom III. | ||
| View original record | 354 BY.3/G.4.8.38. RMC. c. Rm. c. Da. c. Hx. c. Mx. c. BY/CS. SWDL PHANTOM III - TAPPETS. Referring to RHC.12/MJ.20.7.38. the one essential point which I wish to incorporate without fail at the… | ||
| scan0295 | Note concerning barrel type tappets for the Bentley III and Phantom III models. | ||
| View original record | 354 Rm Da. 1/G. 9.8.38 Bentley III + Phantom III Barrel type Tappets file 1360 | ||
| scan0296 | Investigation into scoring and wear issues on Phantom III tappets. | ||
| View original record | 354. Rm. from Mx. Mx.12/G.4.10.38. PHANTOM 111 TAPPETS. It is clear from evidence now available that deleting the hydraulic mechanism has not overcome scoring and wear of chromium faced tappets.… | ||
| scan0297 | Service failures of camshafts and the proposal to implement barrel type tappets on the Phantom III chassis. | ||
| View original record | - 2 - Mx.12/G.4.10.38. miles had been run on experimental cars without trouble. This experience has been confirmed by examination of our own trials cars after 30,000 miles running. On the other hand… | ||
| scan0298 | List of complaints regarding bottom tappets on the Phantom III model. | ||
| View original record | Rm please attach to the Mher memor Mx.12/G.4.10.38. 354. LIST OF COMPLAINTS ON PHANTOM III. BOTTOM TAPPETS. Chassis No. Date of Complaint. Mileage. Remarks. 3-AX.95 19.8.37. 7,109 2 Tappets replaced.… | ||
| scan0299 | List of complaints and repairs for various chassis, focusing on tappet and camshaft issues. | ||
| View original record | - 2 - Mx.12/G.4.10.38. Chassis No. Date of Complaint. Mileage. Remarks. * 3-CM-5 25.7.38. 8,082 All tappets and camshaft replaced. Cost £30. Failed again after 3,000 miles. 3-CP-196 28.7.38. 10,639… | ||
| scan0300 | The endurance testing and failure analysis of Wraith-type flat bottom tappets on a Phantom III engine. | ||
| View original record | 35H & 654 To By. from Rm/Swdl. c. DA. c. HPS. c. Da/Jnr. c. Da/Mcs. WRAITH TYPE OF FLAT BOTTOM TAPPETS ON PHANTOM III. Barrel type of rotating tappets with vertical bores and flat faces as against the… | ||
| scan0301 | Comparison of weight and design for the Phantom III and Wraith bottom tappets, considering strengthening and rod whipping. | ||
| View original record | -2- Rm/Swdl.9/WH.1.5.39. lightness of the parts concerned, which are as follows and well worth considering. Ph.III bottom tappet (E.89388) 1.0" dia. in present form weighs 2.5 ozs. and anticipate this… | ||
| scan0302 | Design and testing of new strengthened barrel-type tappets for the Phantom III engine. | ||
| View original record | DY/MS c. Rm. c. Huy/S c. RHC/VS DA.1/G.9.5.39. 354. PHANTOM III. BARREL TYPE TAPPETS. Please receive herewith :- E.CD.1361 Strengthened Tappet - Phantom III. In view of the failure of some of the… | ||
| scan0303 | The investigation into rapid tappet and camshaft wear on the Phantom III car. | ||
| View original record | 354 W/S. (S). c. Rm. c. Mr. Mary c. N. c. GWH. (K). PHANTOM III. TAPPET WEAR. In regard to the question of the rapid wear which takes place under certain conditions between the tappets and camshaft on… | ||
| scan0304 | Strengthening of Phantom III barrel tappets following a failure and requesting a new trial set. | ||
| View original record | 354 To HPS. from Rm/Swdl. c. HPS/RH. c. By/NS. c. Da/MGS. Rm/Swdl.1/WH.16.5.39. PHANTOM III BARREL TAPPETS. In consequence of the bottom tappet failure on the above unit this has now been strengthened… | ||
| scan0305 | Inadequate oil feed in Phantom III engines and the correction made to the valve gear. | ||
| View original record | 354 To By. from Rm/Swdl. c. DA. c. Mx. Rm/Swdl.6/MH.22.5.39. PHANTOM III VALVE GEAR. We have recently had occasion to test out several Phantom III engines and on each engine the oil feed down the push… | ||
| scan0306 | Re-issue and modification of a strengthened tappet for the Phantom III. | ||
| View original record | BY/NS c. Rm. c. RHC/VS. c. RM/Swdl. 357 DA.5/G.6.6.39. PHANTOM III. STRENGTHENED TAPPET. E.CD.1361. Herewith please receive for re-issue :- E.CD.1361 Strengthened Tappet - Phantom III. Since the… | ||
| scan0307 | Issues with chromium-plated tappets on the Phantom III and a new proposed reclamation process. | ||
| View original record | 35H SWDL File Hd from Mx/SB c. Dr c. RHC c. Rm c. JPH/GT Mx/SBS/MG.14.7.39 PHANTOM III - TAPPETS We have now gained sufficient experience to know that Chromium plated tappets are a menace, in that the… | ||
| scan0308 | The failure of a scheme to convert Phantom III tappets and camshafts from hydraulic to non-hydraulic. | ||
| View original record | Wd. W. Levallois O. Hy O. Lun C. S/S - O C. Ins/GWH (R) PHANTOM III - TAPPETS & CAMSHAFT We have now had sufficient evidence to indicate that the scheme for converting from hydraulic to non-hydraulic… | ||
| scan0309 | Note concerning the Tappets and Camshaft for a Phantom III, chassis number 3.AX.95. | ||
| View original record | 354. Rm. Mx/SB.5/G. 14.8.39 Tappets + Camshaft - Ph. III Chassis No. 3.AX.95 - Player. file 361. | ||
| scan0310 | The Phantom III camshaft and tappets, with a cross-reference to another file. | ||
| View original record | 354. Rm Rm/GWH. 23/n. 18.8.39. re Phantom III camshaft + Tappets see file 1113. | ||
| scan0311 | The Phantom III Rocker gear, D.L. Series. | ||
| View original record | 354 Rm Mx/SB. 6/9. 18.8.39. P.III Rocker gear. D.L. Series. see file 1113. | ||