Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Instructing the testing of a 4-port induction pipe for a 20-HP head, potentially for the Spectre model. | ||
| View original record | To Hs. from E. c. Wor. By. x4694 308 E.3/HP.19.9.33. re Induction Pipe. xr070 We are instructing a 4 port induction pipe for test on a standard 20-HP. head, as discussed with you, as this is the… | ||
| scan0002 | Proving of an induction system for a 12-cylinder engine. | ||
| View original record | 308 To RHC. from Hs/Rm. Hs/Rm.E/KT.22.9.33. INDUCTION SYSTEM FOR THE 12 CYLINDER ENGINE. We want to be in a position to prove the induction system which will be on the 12 cyl. car before they get too… | ||
| scan0003 | Request to modify the induction pipe for a 12-cylinder engine to allow for carburetter rotation. | ||
| View original record | [Handwritten]: X-Copy. 308 To RHC. from Hs/Rm. Hs/Rm.5/KT. 28.9.33. INDUCTION SYSTEM FOR THE 12 CYL. ENGINE. Further to Hs/Rm.5/KT.22.9.33. to which we attached LeC.3637, E. has now gone further with… | ||
| scan0004 | Test of small S.U. carburetters on a Bentley engine for the Spectre engine project. | ||
| View original record | X-Copt 308 To E. from Hs/Rm. c. Wor. c. By. Hs/Rm.2/KT.13.11.33. SMALL CARBURETTER TEST FOR THE SPECTRE ENGINE. We have carried out a test on the two smaller S.U. carburetters on the Bentley engine,… | ||
| scan0005 | Small carburetter for the Spectre engine, confirming there is no appreciable power difference between two sizes. | ||
| View original record | To E. from Hs/Rm. C. Her. By. Kullard 308 Hs/Rm.10/HT.20.11.33. SMALL CARBURETTER FOR SPECTRE ENGINE. Further to our Hs/Rm.2/KT.13.11.33, we have now confirmed our previous figures, and attach a power… | ||
| scan0006 | Comparison of the main dimensions of 1 1/4 and 1 3/8 inch diameter S.U. carburettors. | ||
| View original record | [ "B.V. 12.", "2.600 DIA.", "2.500", "2.125", "5.050", "1.360 DIA.", "1.250 DIA BORE", "5.650", "1.250 DIA BORE", "2.950 DIA.", "3.000", "5.575", "1.375 DIA BORE", "1.495 DIA.", "5.100", "1.500",… | ||
| scan0007 | Print of a larger bellows for an automatic carburetter control scheme. | ||
| View original record | X308 To Hs. from E/PSN. E/PSN.1/HP.1.5.34. C By. RHC. ["By. RHC." is struck through] Automatic Carburetter Control. We send you herewith a print of:- LeC.3898 showing a larger bellows fitted to the… | ||
| scan0008 | Performance graph comparing 1 3/8' and 1 1/4' S.U. carburettors, plotting B.HP and B.M.E.P. against R.P.M. | ||
| View original record | COMPARISON OF 1 3/8 & 1 1/4 CARBURETTERS. C/R 6.37/1 RR PISTONS SHORT CYLINDERS OPEN EXH Valve Timing Diagram: Ex IN 020 7.1 3.8 48.5 52.8 Graph Key: Solid line: 1 3/8 DIA S.U. Dashed line: 1 1/4 DIA… | ||
| scan0009 | Experimental department report on testing the proposed Spectre Induction System. | ||
| View original record | EXPERIMENTAL DEPARTMENT REPORT REFERENCE :- Hs/CTS.4/KW.15.5.34. Subject of Report :- To test out proposed Spectre Induction System. General Conclusions :- The Spectre Induction System should function… | ||
| scan0010 | Tests for distribution and power outputs using the Spectre Induction System on a Bentley engine. | ||
| View original record | Spectre. Distribution and Power Outputs. Tests have been carried out to determine whether any effect is noticed when running two S.U. carburettors in the staggered positions of the Spectre Induction… | ||
| scan0011 | Test No. 3 report on carburettor performance, noting cylinders 1 and 2 run richer at top speeds. | ||
| View original record | -2- HS/CTS.4/KR.15.5.34. Test No. 3. Carbs. between cylinder 2 and 3, 5 and 6. The same results as in test No. 2, except that at top speeds, cylinders 1 and 2 show up very slightly richer than the… | ||
| scan0012 | Performance graph showing carburation and power output for a 3 1/2 Litre Bentley engine. | ||
| View original record | 3 1/2 LITRE BENTLEY M.I.T.Y. 8. 1934. CARBURETION & POWER OUTPUT PISTONS. E.B. 1299 UNT 3.6 COMP. RATIO 6.5:1 (E.B. 615) CAMSHAFT (IN. VALVE 1.400 D.A. STD. BENTLEY EB318.) Ex " 1.300 " (1) 2. 1.375"… | ||
| scan0013 | Performance graph comparing carburation options for a 3 1/2 Litre Bentley engine. | ||
| View original record | CARBURATION 3 1/2 LITRE BENTLEY UN TB7 COMP. RATIO 6.5:1 (E.B.6.S) PISTONS E.B. 7299 STD. 20/25 CAMSHAFT IN. VALVE: 1.40 DIA Ex. " 1.30 DIA ① 2. 1.375. S.U. CARBS ON 1.500 INDN. PIPE ② 2. 1.250 S.U.… | ||
| scan0014 | Drawings for the manual mixture control on the Spectre model, noting it is an interim solution. | ||
| View original record | X6094 308 To BY. from E/JNR. E/JNR.10/HP.21.6.34. c. Hs. RHC. re Spectre. We send you herewith:- LeC.3980 showing the mixture control shaft between the Vee. LeC.4002 showing the mixture control on the… | ||
| scan0015 | Request to remove carburettors from a Spectre chassis unit and replace them with carburettors from a test bed unit. | ||
| View original record | X469F 308 To RHC. Hs/Swdl.1/KW.19.9.34. Will you please remove the carburettors from the Spectre chassis unit, and replace with the carburettors belonging to Spectre No. 2 (test bed unit).… | ||
| scan0016 | Supply and adaptation of new carburetters for Spectre and Bentley engines. | ||
| View original record | To RHC. +4694 308 Hs/CTS.19/KW.20.9.34. Carburetters. In conjunction with the general development work of the Spectre engine, the major part of the carburetter work can be carried out on a Bentley… | ||
| scan0017 | Requesting information on the functioning of experimental Automatic Mixture and Idling controls. | ||
| View original record | To Hs/Rm. X308 Rm E/PSN.3/MN.25/9/34. Smith How is this job progressing Automatic Carburetter Controls. We are at present working on two new carburation systems, one for the Wraith and one for the… | ||
| scan0018 | Manufacturing status and delays of automatic carburetter controls. | ||
| View original record | X6047 308 To E/PSN. Hs/Smth.8/KW.26.9.34. Automatic Carburetter Controls. Replying to E/PSN.3/MN.25.9.34. Both the Mixture and the Idling Controls are in the course of manufacture and hence have not… | ||
| scan0019 | Arrangement to fit carburettors from Unit 1 to Unit 2 for the Spectre project. | ||
| View original record | +4694 308 To RHC. Hs/Swdl.11/KW.22.10.34. Spectre. Further to Hs/Swdl.9/KW.22.10.34, will you please arrange for the carburetters from No. 1 Unit to be fitted to No. 2 Unit before the latter goes into… | ||
| scan0020 | Request to amend a design and make a new pipe for the Spectre Induction System. | ||
| View original record | x6694 308 To RHC. Hs/CTS.3/KW.25.10.34. Spectre Induction System. We are at the moment carrying out tests on a converted 20/25 engine, to obtain data for the final designs of the Spectre Induction… | ||
| scan0021 | Difficulties with the Spectre induction system and slow running, possibly requiring a cylinder head redesign. | ||
| View original record | To RHC. Hs/Rm.23/KW.26.10.34. Spectre Induction System and Slow Running. We have run into serious difficulty with the Spectre slow running due to the short distance between the cylinders and the… | ||
| scan0022 | Spectre carburation tests comparing different induction systems on a six-cylinder engine. | ||
| View original record | 4308 To E. from Hs/CTS. c. to Wor. c. to By. Hs/CTS.7/KW.4.12.34. Spectre Carburation. Tests have been carried out on a six cylinder engine to determine the relative values of individual arrangements… | ||
| scan0023 | Test results for different configurations of induction pipes and carburettors. | ||
| View original record | -2- Induction Pipes. Test No. 1. 1.375 bore pipe, balanced (no centre restriction) with 2 Spectre Carburettors placed in the corresponding positions of the Spectre arrangement between cylinders 1 & 2… | ||
| scan0024 | Results of tests on induction pipes and carburetors, focusing on performance at low RPM. | ||
| View original record | -3- HS/CTS.7/KW.4.12.34. Test No. 4. Induction pipes and carbs. as Test No. 3, but with carbs. placed 5.0" further away from pipe by extensions, water heated along their entire length. Result.… | ||
| scan0025 | Camshaft overlap and induction pipe tests to improve slow running performance. | ||
| View original record | -4- Camshaft. From the tests so far it is evident that camshaft overlap is playing the major part in destroying slow running. Tests were carried out to determine the minimum tappet clearance at which… | ||
| scan0026 | Test report No. 6 on an induction pipe and carburetter arrangement, comparing it to a Bentley and Spectre engine. | ||
| View original record | -5- Test No. 6. LeC.4222. With reference to E/Lid.3/HP.26.11.34. Induction pipe as Test No. 3. Special adaptors fitted between carburetters and induction pipe, these being arranged so that the slope… | ||
| scan0027 | Modifications to an existing induction pipe, showing new branch pipes to the inlet ports. | ||
| View original record | MODS. TO EXISTING INDUCTION PIPE Ex.13262-9 6. NEW BRANCH PIPES TO THE INLET PORTS. REPLACING EXISTING ONES. Hs.1640 SEE ALSO Ex16451. 17° 2.400 RAD. 1.375 DIA 1.025 RAD 1.250 1.650 INDN. PIPE… | ||
| scan0028 | Requesting carburettor modifications for the 'Spectre' No. 3 test unit. | ||
| View original record | To RHC. +308 Hs/Swdl.15/KW.18.1.35. Spectre. Will you please adapt the scheme LeC.4292 of external balance pipes to the new carburetters now being prepared for No. 3 unit which we have on test. When… | ||
| scan0029 | Experimental mock-up to fit two Bentley air silencers to a Spectre car to cure induction roar. | ||
| View original record | To RHC. +305 Hs/Wym.5/KW.23.1.35. Spectre Air Silencer. We have tried out the original Air Silencer as fitted to the Spectre and find that it is not as effective as we should like for curing induction… | ||
| scan0030 | Performance of Spectre carburettors, noting better results with reversed throttle but serious flooding issues. | ||
| View original record | To E. from Hs/Rm. c. to Wor. c. to By. +308 Hs/Rm.9/KW.13.2.35. Spectre Carburetters. We are getting better results with the reversed throttle slow running on the 20/25 than we are with the normal… | ||
| scan0031 | Technical memorandum on the development and improvement of Spectre carburetters. | ||
| View original record | To E. c. to Wor. c. to By. Hs/Swd1.10/KW.13.2.38. Spectre Carburetters. Little or no development work has been carried out on the Spectre carburetters in view of the fact that experiments were being… | ||
| scan0032 | Design flaws and operational difficulties with carburettors. | ||
| View original record | -2- Hs/Swdl.10/KW.13.2.35. There is no petrol drain provided, either from the bottom of the throttle bore, or the air intake well in case of flooding. The petrol pipe nuts are very inaccessible below… | ||
| scan0033 | Modifications to Spectre Carburetters and requesting their application to all other sets. | ||
| View original record | To RHC. +308 Hs/Swdl.10/KW.21.2.35. Spectre Carburetters. One set of Carburetters have been fitted with the following modifications :- (1) Floatchamber balance to Hs.1736, including new floatchamber… | ||
| scan0034 | Modifications and adjustments for 20/25 and Spectre carburetters. | ||
| View original record | SECRET. To EY. from E. c. Wor. Hs. RHC. Re/Swdl. E/Psr. re 20/25 and Spectre Carburetters. It was agreed at the conference in Wor's office on Monday afternoon that we should not proceed to detail and… | ||
| scan0035 | The accessibility and compactness of the Spectre induction system and a proposal for a 2 carburetter alternative. | ||
| View original record | To RHC. Spectre Induction System. We are worried about the accessibility and compactness of the 4 carburetters in the vee of the Spectre. We are making a big effort to get a 2 carburetter system with… | ||
| scan0036 | Test plan for the development and simplification of the Spectre engine's carburetion and induction system. | ||
| View original record | +306 Rm. From Hs/CTS. c. to RHC. Hs/CTS.2/MA.11.3.35. SPECTRE CARBURATION. TEST BED DEVELOPMENT. We wish to ascertain, by a series of straight forward tests, to what degree the complicated induction… | ||
| scan0037 | Need for a C.10 engine for tests and the overhaul schedule for a B.1 engine. | ||
| View original record | -2- Hs/CTS.2/MA.11.3.35. Cont'd. We will also need an engine on which to carry out these tests. The engine for the job is C.10 instructions have already gone through re. complete overhaul of this… | ||
| scan0038 | Request for the creation and modification of induction pipes for Spectre Carburation system tests. | ||
| View original record | To RHC. X308 Hs/CTS.2/KW.26.3.35. Spectre Carburation. Further to Hs/CTS.2/MA.11.3.35, in which we are carrying out tests on Spectre Induction System. Will you please make the following parts… | ||
| scan0039 | Development and modification of induction pipes for comparative testing on the Spectre engine. | ||
| View original record | To RHC. +308 Hs/CTS.1/KW.16.4.35. Induction Pipe Development. Further to our memo. Hs/CTS.19/KW.10.4.35. in which we ask for a modification to pattern etc. of Ex.18310. When the necessary castings… | ||
| scan0040 | Secret memo clarifying an error regarding the status of a delayed carburetter design scheme for Spectre. | ||
| View original record | SECRET x308 To Sg. and Wor. from E. c. Hs. Ey. Hs/Rm. F/Lid. E.6/HP.17.4.35. Spectre Carburetters. Referring to the revised four carburetter scheme for Spectre, I find I was in error in stating that… | ||
| scan0041 | Summary and update on the development of induction systems for the Spectre car. | ||
| View original record | RHC. x308 Hs/Rm.22/KW.25.4.35. Spectre Induction Systems. Attached is a summary of the induction systems which we have instructed for the Spectre, in order of urgency. We have already received No.1.… | ||
| scan0042 | Outlining various configurations and modifications for induction systems. | ||
| View original record | To RHC. Hs/Rm.22/KW.25.4.35. INDUCTION SYSTEMS. (1) Single downdraught Stromberg, Rover type centre, Hs.1881. EX.18310. Hs/CTS.1/KW.4.4.35. (2) As above, but centre twisted to 47º to enable pipe to be… | ||
| scan0043 | Carburetter flooding issues and the evaluation of different petrol feed systems for Spectre and Bentley models. | ||
| View original record | To Sg. c. to Wor. c. to E. 4305 4265 Hs/Rm.4/KW.15.5.35. Spectre Petrol Feed. Sg.11/E.1.5.35. Since the original epidemic of flooding on the Spectre carburetters, we have been immune from this… | ||
| scan0044 | Secret memorandum regarding the felt lining for the Spectre Air Silencer. | ||
| View original record | x308 Wyman. Is this. O.K? Rm. To BY. from E/JNR. SECRET. E/JNR.2/HP.7.6.35. Yes. c. Hs/Rm. RHC. re Spectre - Air Silencer. Good We send to you herewith:- LeC.4536 showing the felt lined air silencer.… | ||
| scan0045 | Modified throttle return spring mountings for Spectre carburettors. | ||
| View original record | X 308 To BY. Copy to Hs. RND. E/PSN.1/MN.18.6.35. SPECTRE CARBURETTERS. We send you herewith LeC 4548 showing modified throttle return spring mountings for the above carburettors. The four springs and… | ||
| scan0046 | Requesting the construction of two modified air silencers for car 2-S-1. | ||
| View original record | To RHC. X 308 Hs/Std.30/KW.27.6.35. Air Silencer for 2-S-1. Will you please have two air silencers built up for the above car, to LeC.4536, except that the diameter of the outside shell is to be… | ||
| scan0047 | Possibility of testing a 2-carburetter system on the Spectre induction system. | ||
| View original record | x 308 To RHC, HS/CTS.9/KW.1.7.35. Spectre Induction System. We wish to test the possibilities of using a 2 carburetter system instead of 4 on the Spectre. Will you please go into the possibilities of… | ||
| scan0048 | Carburetion systems for the Spectre and 20/25 HP models. | ||
| View original record | To R. c. to SG. c. to HGR. c. to Hy. c. to Lox. x308 Rm/Ma.14/KM.8.7.35. Carburetion - Spectre & 20/25 HP. On Rolls-Royce cars for the last 25 years we have always had the carburetter below the… | ||
| scan0049 | Drawing of an induction pipe and exhaust manifold for the 20/25 model. | ||
| View original record | -2- Hs/Rs/14/KW. 6.7.35. We are sending M, a drawing of the induction pipe and exhaust manifold which have proved satisfactory on our experimental tests on the 20/25. Hs/Rm. | ||
| scan0050 | List of tests carried out on various induction system configurations for a six-cylinder engine. | ||
| View original record | Ha/CTS.18/KW. 8.7.35. Induction Systems. With further reference to Ha/CTS.2/WA.11.3.35. Tests have been carried out on a six cylinder engine, to obtain information on the following points:- (1)… | ||
| scan0051 | Test results for a Bentley induction pipe with various carburetter and pipe end configurations. | ||
| View original record | -2- Hs/CTS16/KW. 8.7.35. Test No. 1. Figs. 1 & 2. Standard Bentley induction pipe EB.616/7. (1) With two horizontal carburetters. (2) With one " carburetter. Result. Slow Running: The same in each… | ||
| scan0052 | Test report comparing the performance of a single horizontal carburetter against a single downdraught carburetter. | ||
| View original record | -3- HA/CTS.16/RH/8.7.35. Test No. 3. Figs. 4 & 5. Standard pipe as Test 1, comparing :- (1) Single horizontal carburetter. (2) Single downdraught carburetter. Result. Slow Running: (2) is 50% better… | ||
| scan0053 | Test report comparing single downdraught and horizontal carburetters with different inlet pipe configurations. | ||
| View original record | -4- Test No. 4. (Single Downdraught Carburetter). Fig. 6. Main bore of pipe below the inlet ports - ('dropped pipe'). Object To delay unvaporised fuel. Result Slow Running: Worse than previous test.… | ||
| scan0054 | Engine test results for downdraught carburettor performance and pipe configurations. | ||
| View original record | -5- Test No. 5 Continued. Result. (2) Downdraught Carburetter. Slow Running: Very good. Pick up: Good. Distribution: P.T. low speeds, centre cyls. weak, outer cyls. rich. P.T. high speeds, centre… | ||
| scan0055 | Test results for modifications to pipes and carburettors to improve gas flow and distribution. | ||
| View original record | -6- Test No. 7. 4 Port Pipe Connected to 6 Port Head by means of special siamese connections. Fig. 12. Object. To reduce capacity and straighten out gas flows. Result. Same as test 6, except that it… | ||
| scan0056 | Test report detailing modifications and observations of a large capacity centre chamber's effect on fuel mixture. | ||
| View original record | -7- Rs/CTS;16/KW. 8.7.38. Test No. 9. EX.1831C. (Large Capacity Centre Chamber). Object. To deal with unvaporised fuel as soon as it leaves the riser, and to change its condition before entering the… | ||
| scan0057 | Fuel mixture fault related to unvaporised fuel suspension in the engine's centre chamber. | ||
| View original record | -8- certain amount was now being deposited on the walls of the chamber. In view of this, shields were placed over the ends of the pipe which protruded into the centre chamber. The result of this was… | ||
| scan0058 | Test report comparing the performance of a 4-port pipe against a 6-port pipe, focusing on slow running and petrol distribution. | ||
| View original record | -9- Ha/CTS.16/KW. 8.7.35. This fault on the pipe in question was not taken seriously, because we were concentrating on how slow running could be obtained. If we could get slow running on a 6-port pipe… | ||
| scan0059 | Carburettor and manifold tests, noting results on slow running, fuel distribution and 'building up' issues. | ||
| View original record | -10- Rm/CTS.16/KW. 8. 7. 35. (Fig. 18). This gave a very slight improvement over Fig. 17, but slow running was definitely worse. This we put down to the fact that the heavy blobs of unvaporised fuel… | ||
| scan0060 | Test results for a 'Vee' formation pipe and single downdraught carburettor, detailing water and exhaust hot-spot performance. | ||
| View original record | -21- Hs/CTS.16/KW.6.7.35. F.T. high speeds - very good. Note: Tests have not been carried any further on this arrangement. Test No. 12. "Vee" Formation Pipe. Single Downdraught Carburettor. Fig. 5.… | ||
| scan0061 | Blueprint showing eight design variations for an engine induction system. | ||
| View original record | 1 17° CARBS 1 2 3 4 5 6 WATER HOT SPOT 2 1 2 3 4 5 6 3 1 2 3 4 5 6 4 1 2 3 4 5 6 5 17° 1 2 3 4 5 6 6 17° 1 2 3 4 5 6 7 17° 1 2 3 4 5 6 8 1 2 3 4 5 6 INDUCTION SYSTEM DEVELOPMENT. | ||
| scan0062 | Blueprint detailing various designs for an induction system development. | ||
| View original record | INDUCTION SYSTEM DEVELOPMENT. CIRCULATING WATER. 9 10 11 12 13 14 15 16 1 2 3 4 5 6 | ||
| scan0063 | Blueprint showing five different configurations for an exhaust manifold connection. | ||
| View original record | 17 A EXHAUST MANIFOLD. 18 B 19 C. 20 A₂ 21 HS 2014. | ||
| scan0064 | Power curve comparison graph for two different induction systems on a B4 Unit engine. | ||
| View original record | TEST N° I CURVE N° I INDUCTION SYSTEMS JULY 1935 B4 UNIT (STD. BENTLEY.) POWER ① STANDARD BENTLEY SYSTEM 2 1³/₈ S.U. CARBS. ON 1.500 BORE PIPE ② SINGLE 1⁵/₈ S.U. CARB ON SAME PIPE HORIZONTALS COMP.… | ||
| scan0065 | Power curve graph comparing single horizontal and downdraught carburettors on a B.4 Bentley unit. | ||
| View original record | TEST N°3 CURVE N°2 INDUCTION - SYSTEMS JULY. 1935 B.4 UNIT. (BENTLEY) POWER ① SINGLE HORIZONTAL CARB ② " DOWNDRAUGHT " COMP. RATIO 6.5:1 CAMSHAFT (BENTLEY) B.H.P B.M.E.P R.P.M. | ||
| scan0066 | Power curve comparison for a C.10 unit, testing single vs. twin downdraught carburettor induction systems. | ||
| View original record | TEST Nᵒ 8 CURVE Nᵒ 3 INDUCTION SYSTEMS JULY 1935 C. 10. UNIT POWER ① TWIN DOWNDRAUGHT CARB. ② SINGLE COMP. RATIO 5.5:1 CAMSHAFT 20/25 B.H.P. B.M.E.P. R.P.M. C.T.S. | ||
| scan0067 | The Spectre carburetter filter, referencing drawing LeC.4594 and modifications similar to the 20/25 engine. | ||
| View original record | To BY. Copy to Hs/Rm. RHO +308 Bowering - Follow up please SPECTRE CARBURETTER FILTER. Rm JvG We send you herewith LeC.4594 of a carburetter filter for the above engine, on the same lines as that… | ||
| scan0068 | Request to fit Spectres I & II with carburetter filters to LoC.4594. | ||
| View original record | X 308 To RIC. Ha/Dwg.22/KW.17.7.35. Spectre Carburetter Filter. Will you please fit Spectres I & II up with carburetter filters to LoC.4594 at the earliest possible moment. Ha/Dwg. | ||
| scan0069 | Secret memo detailing a modification to the air intakes on Spectre carburettors. | ||
| View original record | X308 To BY. from E/PSN. c. Hs. RHS. E/PSN.4/HP.1.8.35. SECRET. Spectre - Carburetters. We send you herewith:- LeC.4605 showing a modification to the air intakes on the above carburetters, to… | ||
| scan0070 | Letter to The Southwark Manufacturing Co. Ltd. requesting the supply of eight Corru-Joint washers. | ||
| View original record | X308 Exptl. Dept. Hs/Dwg.7/KW. 6th August 12th July, 1935. The Southwark Manufacturing Co.Ltd., Nelson Passage, High Street, Birmingham. For the attention of Mr. C.F. East. Dear Sirs, We wish to try… | ||
| scan0071 | Secret memorandum detailing modifications to the Spectre Carburetter jet bush and housing. | ||
| View original record | To: BY. K308 E/PSN.3/MN.9.8.35. Copy to RHC, HS/RM, HS/Swindell. SECRET Spectre Carburetters. We send you herewith LeC.4634 of a modified jet bush for the above carburetter. The object of this… | ||
| scan0072 | Blueprint of a modified jet bush and housing nut for a Spectre carburettor. | ||
| View original record | LEC4634. THE DEPTH OF THE FLAT ENDED HOLE TO RECEIVE THE JET NEEDLE, MEASURED FROM THE BOTTOM FACE OF THE SUCTION PISTON, MUST BE HELD TO A FINE LIMIT. FINE LIMIT ON DEPTH OF DRILLING. THE ASSEMBLY OF… | ||
| scan0073 | Requesting the creation of a modified induction pipe based on sketch Hs.2080 for Spectre and 20/25 models. | ||
| View original record | To RHC. +308 Hs/CTS.14/KW.13.8.35. Induction Pipes. In conjunction with the induction pipe tests we are at present carrying out, re Spectre and 20/25, will you please make a pipe as shown on the… | ||
| scan0074 | Request to fit a 4-port induction system with two Stromberg carburettors to a No. 4 Spectre unit. | ||
| View original record | To RHC. +308 HS/Std.10/KW.26.8.35. 4-Port Induction System for Spectre for 2 Stromberg Carburetters. Will you please fit the two induction pipes and fittings to No. 4 Spectre unit while this is on the… | ||
| scan0075 | Requesting modifications for upcoming tests on the Spectre Induction System. | ||
| View original record | 308 To RHC. Hs/CTB. & KW. 30.8.35. Spectre Induction System. Within the next few days we will be carrying out tests on a four-port(mock-up) induction system, EX.19300, using two carburetters, instead… | ||
| scan0076 | Plan to alter the Spectre Two Carburetter Induction System. | ||
| View original record | To RHC. +308 Hs/Std.19/KW.3.9.35. Spectre Two Carburetter Induction System Referring to memo. Hs/CTS.8/KW.30.8.35. we think that the best plan would be to fit the present pipes to Ex.19300 etc. to… | ||
| scan0077 | Causes of ignition troubles and misfires in the Spectre engine. | ||
| View original record | x306 To Hs/Wst. c. to Hs/Rm. Hs/Smth.16/KW.3.9.35. Spectre Ignition Troubles. (1) Bad wear on the pad of the breaker arms so that only about .010" gap was possible with the adjustment provided. One… | ||
| scan0078 | The development and issues with Spectre Carburetters, specifically regarding reverse throttle and bore size. | ||
| View original record | To E. c. to Wor. c. to By. +305 Hs/Rm.24/KW.6.9.35. Spectre Carburetters. Attached is a report from Hs/Swdl. on the Spectre Carburetters. It will be remembered that we were responsible for asking for… | ||
| scan0079 | Testing and modification of Spectre Carburetters. | ||
| View original record | Hs/Swdl.25/KW.6.9.35. Spectre Carburetters. We have tested No.10, the 10,000 miles unit, on the bed fitted with the reverse throttle carburetters LeC.4378. Other modifications on these carburetters… | ||
| scan0080 | Carburettor testing results and recommended modifications for increased performance. | ||
| View original record | -2- Hs/Swdl.25/KW.6.9.35. A set of the old type of carburetters have been tested with the throttles removed, giving a reduction in depression from 2.4" to 1.8" Ins.Hg. at 3750 r.p.m. resulting in a… | ||
| scan0081 | Fitting a carburetter filter with existing carburetters for the SPECTRE model, referencing a print LeC 4693. | ||
| View original record | To RHO. Copy to Hs/Rm. BY. Hs/Bowring. ---------------------- X308 E/PSN.1/MN.10.9.35. ---------------------- SPECTRE. Fitting of Carburetter Filter with Existing Carburetters. We send you herewith a… | ||
| scan0082 | Flooding issue on the No.2 Spectre chassis, requesting new carburetter floats for trials. | ||
| View original record | To RHC. +308 Hs/Swdl.13/KW.13.9.35. Spectre. We are having trouble with periods of flooding on No.2 chassis, which we think is due to the floats being insufficiently buoyant to maintain a seating when… | ||
| scan0083 | Secret and urgent memo detailing a modification to Spectre engine carburetters to allow for easier maintenance. | ||
| View original record | SECRET URGENT To BY. Copy to Hs/Rm. FVC. E/PSN.1/MN.13.9.35. X308 Spectre - Carburetters. ------------------------ We send you herewith LeC 4706 of a modified petrol pipe attachment for the reverse… | ||
| scan0084 | Drawing of a modified petrol pipe attachment for a reversed throttle carburettor on a Spectre model. | ||
| View original record | THIS MODIFIES LEC'S 4378, 4495 & 4638. E45985 E8637 LeC 4706. NOTE. HORIZONTAL PETROL PIPE RAISED TO POSITION SHOWN. BOSS ADDED TO ADAPTER. MACHINED RECESS IN COVER DEVELOPED VIEW OF PIPE AT A. SHAFT… | ||
| scan0085 | Fitting external float chamber vent pipes to Spectre carburettors for car 2 S I. | ||
| View original record | F WYMAN X308 To RHC. (Struck through) Copy to BY. (Struck through) Hs/Rm. E/PSN.1/MN.18.9.35. [Signatures] SPECTRE CARBURETTERS. We send you herewith a print of LeC 4712 showing an external float… | ||
| scan0086 | Fitting of Stromberg downdraught carburetters to Phantom III engines. | ||
| View original record | Sg. and Wor. from E. c. Hs. By. +305 Rm SECRET. E.1/HP.23.9.35. Phantom 3 Carburetters. Referring to the question of fitting Phantom 3 engines with Stromberg downdraught carburetters, we have arranged… | ||
| scan0087 | Requesting the modification of carburettor jets for a unit on the test bed. | ||
| View original record | To RHC. x308 Hs/Swdl.25/KW.23.9.35. Spectre. Will you please modify the jets in the carbs. on No. 4 unit, now on the test bed, to LeC.4634. These carbs. are available as soon as you can get this… | ||
| scan0088 | New drawings and part numbers for the Spectre Chassis carburetter, air silencer, and oil fittings. | ||
| View original record | Rm x308 To R.H.C. (crossed out) c.c. E.S. (crossed out) c. Hs/Rm. BY/CS3/EH.25.9.35. Re Spectre Chassis - Carburetter - Sec:5080. Carburetter Air Silencer - Sec:5082. Oil Fittings - Sec:5200. LeC.4706… | ||
| scan0089 | Parts changes for the Spectre Chassis carburetter, air silencer, and oil fittings. | ||
| View original record | TO RHev G.E. c. Hs/Rm. 4308 BY/CS12/EH.26.9.35. Re Spectre Chassis - Carburetter - See;5080. Carburetter Air Silencer - See;5082. Oil Fittings - See;5200. LeC.4706 - Modified Petrol Attachment.… | ||
| scan0090 | List of new tracings for a silencer and petrol feed pipe assembly, completing experiment instructions. | ||
| View original record | BY/CS12/EH.26.9.35. cont'd. (2) New prints of the following new tracings will be sent along later. Section 5082. E.87479 Silencer Assembly. which replaces E.87026. Section 5200. E.87478 Petrol Feed… | ||
| scan0091 | Requesting tests on the Spectre engine's induction systems, specifically regarding carburetter and throttle orientation. | ||
| View original record | To Hs/Rm. Copy to HS/Salt. K308 E/PSN.5/MN.27.9.35. Induction Systems. ----------------- Further to our conversations of yesterday we should be pleased if you would do tests on a single down draught… | ||
| scan0092 | Fitting of experimental two-carburetter down-draught induction pipes to a Phantom III engine. | ||
| View original record | SECRET x308 E/PSN.1/MN.28.9.35. To BY. (BY is crossed out) Copy to RHO. Hs/Rm. (RHO is crossed out) URGENT. Phantom III. Two Carburetter Down Draught Induction System. We send you herewith LeC.4719 of… | ||
| scan0093 | Modifications to the Spectre Chassis carburetter float-chamber vent. | ||
| View original record | TO RHO c. Hs/Rm. x306 Rm BY/CS1/EH.30.9.35. Re Spectre Chassis - Carburetter - Section 5080. Lec.4712 - Floatchamber Vent. Further to our memo' BY/CS12/EH.26.9.35., please receive herewith blue prints… | ||
| scan0094 | Instruction to increase the diameter of the Spectre air silencer from 6.00' to 7.00' for production. | ||
| View original record | To By. X308 Hs/Wym.9/KW.1.10.35. Will you please note that we have increased the dia. of the Spectre air silencer from 6.00" to 7.00" and would like you to instruct accordingly for production.… | ||
| scan0095 | Blueprint for the Phantom III two carburetter down draught induction system. | ||
| View original record | X308 Hs/Rm. BY/Mtn14/N.2.10.35. Phantom III - Two Carburetter Down Draught Induction System. Referring to memo E/PSN.1/MN.28.9.35, we send you herewith blueprint of LeC.4719 as requested. BY/Mtn. | ||
| scan0096 | Issues with the Phantom III carburettors, including accelerator pedal spring tension and float mechanism design. | ||
| View original record | Swdl. We should reply to this Rm 7308 Hs. from E. c. By. Hs/GWH. Da. Hs/Swdl. E/Psn. re Phantom 3 Carburetters. With regard to the question of/springing of the accelerator pedal being too heavy with… | ||
| scan0097 | Modifications to a float and needle mechanism. | ||
| View original record | E.1/HP.3.10.35. needle seat, and the weight of the needle itself, and also to increase the leverage of the float over the needle. These three modifications should allow us to increase the gauge of the… | ||
| scan0098 | Payment for an invoice from The Southwark Manufacturing Co. Ltd. for 8 Nickel Alloy Corrujoints. | ||
| View original record | to be paid Hs. Rm G/Cam/CA.51/IL.3.10.35. We have an invoice from The Southwark Manufacturing Co.Ltd. dated 17th ulto. on which we are charged 20/-d. the lot plus 2d. postage for 8 Nickel Alloy… | ||
| scan0099 | Points raised about the Phantom III four carburetter induction system. | ||
| View original record | To E.H. Copy to BY, Hs/Rm, He/Swindell. x308 E/PSN.1/MN.3.10.35. ----------------------------- PHANTOM III. Four Carburetter Induction System. At a discussion yesterday morning with Hs/Rm and… | ||
| scan0100 | Report page detailing tests on throttle springs and modifications to an air intake resonance chamber to prevent backfire. | ||
| View original record | -2- some tests to see how far the throttle springs can be weakened without impairing satisfactory operation of the throttle. 6) The float balance to the resonance chamber in the air intake appeared to… | ||
| scan0101 | Modification to the induction pipe for the Phantom III experimental down-draught system. | ||
| View original record | To BY. +308 E/PSN.2/MN.4.10.35. Copy to Hs/Rm. RHC. Hs/Swindell. ------------------------------------ PHANTOM III. Experimental Down-draught Induction System for Existing Cylinder Heads.… | ||
| scan0102 | Modifications to the Phantom III reverse throttle carburetter's lightened throttle spring. | ||
| View original record | To Hs/GWH. 4308 E/PSN.3/MN.4.10.35. Copy to BY. Hs/Rm. PHANTOM III. Reverse Throttle Carburetters - Lightened Throttle Spring. We send you herewith a print of LeC 4742 giving particulars of the… | ||
| scan0103 | To place an order for 8 Nickel Alloy Corrujoints from The Southwark Manfg. Co. | ||
| View original record | To Roy. c. to G/Cam. x308 Hs/Rm.3/KW.5.10.35. G/Cam/CA.51/IL.3.10.35. Will you please pass an official order to The Southwark Manfg. Co. for 8 Nickel Alloy Corrujoints, the cost of which is 20/- plus… | ||
| scan0104 | Investigation into heavy mixture control operation on Phantom III carburetters. | ||
| View original record | x308 To Hs/Rm. Copy to BY. Hs/GWH. Hs/Swindell. ----------------- E/PSN.2/MN.8.10.35. ----------------- PHANTOM III. Mixture Control on Carburetters in Vee. Complaints have been received that the… | ||
| scan0105 | Float mechanism, petrol levels, and flooding issues in Phantom III carburettors. | ||
| View original record | To E. c. to By. c. to Da. +308 Hs/Swdl.5/KW.8.10.35. Phantom III Carburetters. In reply to E.l/HP.3.10.35, with regard to the float mechanism, we agree that providing the same float immersion, the… | ||
| scan0106 | Carburettor tests concerning petrol flow, needle valve, and return spring mechanisms. | ||
| View original record | -2- HS/Swd1.5/KW.8.10.35. Working under 2 lbs/sq.in. petrol pressure, we find that .025" needle movement gives a flow of 60 pts/hr. which is slightly in excess of what is required, and .015" movement… | ||
| scan0107 | Confirming the dispatch of blueprint LeC.4739 for an experimental down-draught induction system for Phantom III cylinder heads. | ||
| View original record | Hs/Rm. Hs/Swindell. (Strikethrough) X.308 BY/Mtn7/N.9.10.35. Re: Phantom III - Experimental Down-draught Induction System for Existing Cylinder Heads.… | ||
| scan0108 | Letter from The Southwark Manufacturing Co. Ltd. requesting clarification on a drawing for 'Corrujoints'. | ||
| View original record | THE SOUTHWARK MANUFACTURING CO. LTD. HAMPTON ROW, LONDON, W.C.1. DIRECTOR: D.E.BRIDGE. CODES: PRIVATE AND BENTLEY'S. WORKS: LONDON & BIRMINGHAM. TELEGRAMS: ORIENT, BIRMINGHAM. PLEASE NOTE CHANGE OF… | ||
| scan0109 | Specification sheet detailing 16 modifications for the carburetters on the first twelve Phantom III production chassis. | ||
| View original record | To BY. Copy to Hs/Rm. Hs/Swindell. 4308 E/PSN.2/MN.11.10.35. PHANTOM III - First Twelve Production Chassis. Specification of Carburetters. 1) Carburetter generally to LeC 4378. 2) Controls generally… | ||
| scan0110 | List of specifications concerning gauze fitting for an air silencer and materials for a mixture control mechanism. | ||
| View original record | -2- 17) Gauze to be fitted round communicating holes between intake pipe and resonance chamber on the air silencer. 18) Mixture control rack and pinion mechanism to have at least .005" backlash and… | ||
| scan0111 | Potential fire hazard from carburettor back-fires on the Phantom III and the need for a flame trap. | ||
| View original record | To BY. Copy to Hs/Rm. RHC Hs/Whyman +308 E/PSN.4/MN.11.10.35. Phantom III. First Twelve Production Chassis. Carburetters. We send you herewith LeC 4754 of a gauze flame trap in the air silencer, which… | ||
| scan0112 | Letter to The Southwark Manufacturing Co. Ltd. concerning an amendment to a blueprint. | ||
| View original record | X 308 Exptl. Dept. Hs/Bwg.1/KW.12.9.35. 12th September, 1935. The Southwark Manufacturing Co.Ltd., 27-29, Green Lane, Small Heath, Birmingham. For attention of Mr. C. East. Dear Sirs, Thank you for… | ||
| scan0113 | Flooding test on a Phantom III Stromberg carburetter to assess petrol leakage. | ||
| View original record | Rm x308 Sg. and Wor. from E. C. Hs. By. Mr. E.2/HP.26.10.35. Phantom 3 Carburetters. We have had a special flooding test made of the Stromberg duplex downdraught carburetter with the floatchamber… | ||
| scan0114 | The use of a single type Stromberg downdraught carburettor on large bore 20's models. | ||
| View original record | - sheet 2 - E.2/HP.26.10.35. the single type Stromberg downdraught we are proposing to use on the large bore 20's. It might be argued that this test shows up to the disadvantage of electric petrol… | ||
| scan0115 | The Duplex Down Draught Carburetter Induction System for the Phantom III, sending drawings and describing the system. | ||
| View original record | To BY. Copy to RHC. Hs/Rm. Hs/Swindall. [Handwritten in red]: x308 E/PSN.2/MN.28.10.35. [Handwritten]: Std [Handwritten]: How is the detailing going? Phantom III. Duplex Down Draught Carburetter… | ||
| scan0116 | Comparison table of choke sizes and depressions for a Size 3 carburetter. | ||
| View original record | x308 29.10.35. SIZE 3 CARBURETTER. | | Choke Size | Depression | |---|---|---| | Standard Duplex | 1.3/16" | 4.5" | | Daimlers Choke Size | | | | Singles to get power | 1.5/16" | 3" | | Largest chokes… | ||
| scan0117 | Request to manufacture and trial flame traps for the Phantom III standard carburettors. | ||
| View original record | To RHC. X306 Hs/Swd1.18/KW.30.10.35. Phantom III. Will you please make up for trial on No.4 unit (test bed), flame traps for the standard carburetters, to LeC.4755. Hs/L.H.Swindall. | ||
| scan0118 | Flooding tests and leaks on a Phantom III Duplex Stromberg carburetter. | ||
| View original record | X308 To E. c. to SG. c. to WOF. c. to Hy. c. to MX. Phantom III Carburetters. In reply to E.2/HP.25.10.35, with regard to the flooding test carried out on the Duplex Stromberg Carburetter with the… | ||
| scan0119 | Request to modify carburetter suction pistons for a Phantom III for cold starting experiments. | ||
| View original record | To RHC. X308 Hs/Swdl.27/KW.14.11.35. Phantom III. Will you please modify the carburetter suction pistons out of 35-EX to Hs.2063 for experiment on cold starting. Hs/Swdl. | ||
| scan0120 | Test results for a heated riser on a Ph.III (Duplex Stromberg Carburetter), noting improved distribution. | ||
| View original record | To E. x308 Hs/Swdl.11/KW.10.12.35. Ph.III (Duplex Stromberg Carburetter). In reply to E/PSN.1/MN.22.11.35, we have tested out the riser between the induction pipe and the carburetter to Rm.5, with and… | ||
| scan0121 | Requesting the creation of a brass pipe set for the Ph.III Stromberg Duplex Carburetter induction system. | ||
| View original record | To RHC. X 308 Hs/Rm.16/KW.13.12.35. Induction System for the Ph.III Stromberg Duplex Carburetter. Will you please make the first set of pipes in brass. We shall almost certainly want to modify them… | ||
| scan0122 | Design changes for the water return pipe on a Phantom III Duplex Downdraught Carburetter. | ||
| View original record | Steadman +308 E/JNR.3/HP.14.12.35. BY c.c. Drg. No. Hs/Fm. Phantom 3 Duplex Downdraught Carburetter. Please receive herewith:- Lec.4876 showing the water return pipe from the hot spot. Also herewith:-… | ||
| scan0123 | Experimental air intake silencer for the Phantom III chassis. | ||
| View original record | To ~~RHG.~~ Copy to ~~EH.~~ Hs/Rm. ~~Hs/Swindell.~~ ~~Hs/Chirmas.~~ [Handwritten]: x308 [Handwritten]: R Ruin Lyman Please follow up. R Phantom III Air Intake Silencer. We send you herewith a marked… | ||
| scan0124 | Marked-up print for an experimental air intake silencer for the Phantom III chassis. | ||
| View original record | To RHC. Copy to BY.Hs/Rm. Hs/Swindell. Hs/Whyman. Phantom III Air Intake Silencer. We send you herewith a marked up print of LeC 4880 of an experimental air silencer for the above chassis, together… | ||
| scan0125 | Modifications to the Phantom III induction systems and Stromberg carburettors. | ||
| View original record | x308 To RHC. Hs/Swdl.17/KW.30.12.35. Phantom III. Since instructing the 4 sets of induction systems for the Duplex Stromberg carburettors to Hs/Swdl.22/KW.21.11.35, several modifications have come… | ||
| scan0126 | Modifications to the Phantom III induction system's drainage wells. | ||
| View original record | URGENT. X308 To BY. Copy to Hs/Rm. RHC. Hs/Swdl. E/PSN.2/MN.21.36. PHANTOM III. - Induction System. We send you herewith LeC 4906 of a modification to the drainage wells in the hot box on the above… | ||
| scan0127 | Comparison of an experimental mock-up duplex down draught carburettor against another design for the Phantom III. | ||
| View original record | X306 E. From Hs/Rm. c. to Wor. c. to By. Hs/Swdl .4/MA.7.1.36. DUPLEX DOWN DRAUGHT CARBURETTER PHANTOM III. Comparisons have been taken between the experimental mock-up scheme and LeC.4748 with the… | ||
| scan0128 | Carburettor modifications and their effect on fuel distribution and engine performance. | ||
| View original record | -2- Hs/Swd1.4/MA.7.1.36. Cont'd. Although we wish to confirm these figures, we do think that the above modifications would be worth while, if only for an experimental try out. The distribution at high… | ||
| scan0129 | Print of an experimental Phantom III air intake silencer. | ||
| View original record | To Hs/Rm x 308 E/PSN.1/MN.16.1.36. WYMAN Phantom III Air Intake Silencer. We send you herewith a print of LeC 4880 of an experimental air intake silencer for the above chassis. We also send you a copy… | ||
| scan0130 | Poor performance during road tests of the Phantom III Induction System with a Stromberg Carburettor. | ||
| View original record | To E. c. to Wor. c. to By. c. to Fx. c. to Da X308 Hs/Rm.18/KW.24.1.36. Phantom III Induction System. The attached report shows why we are down in performance on our road tests with the first… | ||
| scan0131 | Modifications to the Phantom III induction system to improve power output. | ||
| View original record | To E. c. to Wor. c. to By. c. to MX. 4308 Hs/Swdl.19/KW.24.1.36. Phantom III Induction System. Further to our preliminary report on the above to Hs/Swdl.4/MA.7.1.36, we herewith attach curves showing… | ||
| scan0132 | Performance graph comparing different induction systems on a Phantom III No. 9 unit with whitemetal bearings and full split pistons. | ||
| View original record | PHANTOM III INDUCTION SYSTEM COMPARISON. SP 21. No 9. UNIT - WHITEMETAL BEARINGS - FULL SPLIT PISTONS. (OPEN EXHAUST POWER CURVES) ① STANDARD 4 R-R CARB SYSTEM. ② DUPLEX DOWNDRAUGHT STROMBERG EE3 (1… | ||
| scan0133 | The testing and design of a Phantom III air silencer. | ||
| View original record | x308 To E. c. to By. c. to Wor. Hs/Wym.1/KW.7.2.36. Phantom III Air Silencer. We have now tested the designed air silencer to LeC4880 on 32-EX car and find that it is only approx. 50% effective due to… | ||
| scan0134 | Modifications to the Phantom III's Duplex Stromberg downdraught induction system to improve power output. | ||
| View original record | To E. c. to Wor. c. to By. X 308 Hs/Swd1.16/KW.11.2.36. Phantom III. Duplex Stromberg Downdraught Induction System. Further to our report Hs/Swd1.4/MA.7.1.36, we have since confirmed our previous… | ||
| scan0135 | Outstanding tests for the petrol drain and overflow vent pipe systems. | ||
| View original record | -2- Hs/Swd1.16/RW.11.2.36. Outstanding tests to be carried out are the petrol drain systems from the hot spot base to Loc.4937, coupled with the overflow vent pipe from the floatchamber.… | ||
| scan0136 | Test results for the Phantom III induction drain scheme under various petrol flow conditions. | ||
| View original record | X 308 To E. c. to By. HS/Ewdl.8/JH.20.2.36. Phantom III Induction Drain. We have tested the drain scheme to Lec.4937 with the following results. Under the most extreme condition, in the case of a… | ||
| scan0137 | Test report on carburettor modifications to cope with fuel flooding under various conditions. | ||
| View original record | -2- Hs/Swd1:S.JH 20.2.36. A further test was carried out at the request of E. with the needle held only .018" off its seat, equivalent to a piece of dirt and under this condition, with the 3/16" dia.… | ||
| scan0138 | Inefficiency of the Phantom III Air Silencer and its replacement. | ||
| View original record | To RHC. X308 Hs/Wym.5/KW.20.2.36. Phantom III Air Silencer. Will you please note that the air silencer to LeC.4880 for the above cars has proved only 50% effective for silence. We have handed over to… | ||
| scan0139 | List of modifications and points to be addressed for the Phantom III Carburetter. | ||
| View original record | x308 SWDL BT. C. Hs. Sft. Ba.By/Co. Hs/Swdl. P/Rens E.10/HP.20.2.36. Phantom III Carburetter. We have now examined the model carburetter, and as soon as Brock has made a modification to increase the… | ||
| scan0140 | Specification sheet detailing adjustments to pipe threads and control rod connections. | ||
| View original record | (sheet 2) E.10/HP.20.2.36. 5/16" pipe, leaving the 2-BA from the drain on the top of the accelerator control well. English threads should be specified for the two drainage connections in the… | ||
| scan0141 | Modifications to the Phantom III Induction System's float chamber drain pipe. | ||
| View original record | To B.Y. Copy to RHC. Hs/Rm. Hs/Swdl. X 308 E/PSN.1/MN.22.2.36. Phantom III Induction System. We send you herewith LeC 5011 of a float chamber drain pipe enlarged in accordance with the Expl. Dept's… | ||
| scan0142 | Preliminary test results and fault analysis for a Phantom III Stromberg carburetter. | ||
| View original record | X308 To E. c. to Wor. c. to By. c. to Sft. Ha/Swdl.7/KW.24.2.36. Phantom III Stromberg Carburetter. Preliminary tests have been taken on the test bed with the above carburetter as made by R.R. for… | ||
| scan0143 | Modifications to the throttle and choke return springs to resolve operational issues. | ||
| View original record | -2- Hs/Swdl.7/EW.24.2.36. (3) The throttle return spring as arranged has a returning load in the closed position of 3 lbs. at the throttle control connection radius. This was not sufficient however to… | ||
| scan0144 | Requesting the modification of two downdraught carburettors for Phantom III units. | ||
| View original record | +308 To RHC. Hs/Swdl.1/JH.25.2.36. Phantom III Carburetters. Will you please modify 2 downdraught carburettors to Lec.4933 for use on No.9 & No.11 units. In addition to the control modifications, the… | ||
| scan0145 | Modifications to the Phantom III Air Silencer for production. | ||
| View original record | To BY. Copy to Hs/Rm. Hs/Whyman. RHC. x308 E/PSN/FS.1/MN.25.2.36. Phantom III Air Silencer. We send you herewith LeC 5000 which shows the 9" diameter air silencer for use with the Duplex Carburetter.… | ||
| scan0146 | Requesting carburetter drawings to modify a Stromberg carburetter for a 10,000-mile test. | ||
| View original record | To BY. Copy to RHC. Hs/Rm. [strikethrough]Be. Hs/Swdl.[/strikethrough] Rm x308 E/PSN.2/MN.27.2.36. Phantom III Carburetter. We should be pleased if you would supply a complete set of the above… | ||
| scan0147 | Modifications to the Phantom III carburetter. | ||
| View original record | To RHC. Copy to [strikethrough]BY. Da.[/strikethrough] [strikethrough]Hs/Rm.[/strikethrough] [strikethrough]Hs/Smll.[/strikethrough] X308 E/PSN.1/MN.27.2.36. [Signature] Phantom III Carburetter.… | ||
| scan0148 | Request to manufacture and fit a Ph.III Air Silencer to a 32-EX car, and to test an alternative 'Pot Scrubber' filter element. | ||
| View original record | To RHC. x308 Hs/Wym.8/KW.2.3.36. Ph.III Air Silencer. Will you please make up and fit to 32-EX car the 9" dia. air silencer to LeC.5000 for use with the Duplex carburetter. This silencer should have… | ||
| scan0149 | Modification to the Phantom III carburetter controls bracket. | ||
| View original record | To BY. Copy to Hs/Rm. RHC. HS/SWDL. x308 E/PSN.4/MN.6.3.36. Phantom III Carburetter Controls. We send you herewith LeC 5031 of a modified control bracket to clear the carburetter throttle pick-up… | ||
| scan0150 | Modifying the Phantom III Carburetter union body by increasing its bore size for improved petrol flow. | ||
| View original record | To RHC. Copy to EY. Eg. Ha/Rm. Hs/Swindell. X308 STANDARD Phantom III Carburetter. ----------------------- We should be pleased if you would open out the smaller bore of the union body issued… | ||
| scan0151 | Developing a cheaper alternative to the Vokes air filter for carburetter air silencers. | ||
| View original record | To ROY. Copy to EY. Hs. x308 E/PSN/FS.1/MN.10.3.36. Air Filter for Carburetter Air Silencers. We have been aware of the expensiveness of the Vokes Air Filter medium used in our air silencers, and, in… | ||
| scan0152 | Requesting the creation of 3 'Pot Scrubber' type air silencers for the Phantom III. | ||
| View original record | x 308 To RHC. Hs/Swdl.21/JH.12.3.36. Phantom III. In conjunction with the 3 Stromberg duplex carburetters which you are modifying to RR. standards, will you please have 3 air silencers made to… | ||
| scan0153 | Order for various sized carburetter air filters for different engine models. | ||
| View original record | To Roy. X308 Hs/Wym.10/KW.19.3.36. Carburetter Air Cleaners. Will you please order from Messrs. Smith & Sons Ltd. some samples of Smith's Metal Wool Air Filters, similar to the ones recently supplied… | ||
| scan0154 | Results of tests to resolve petrol starvation on the Phantom III model at high speeds. | ||
| View original record | To E. c. to Sg. c. to Wor. c. to By. c. to Mx. x 308 Hs/Rm.10/KW.6.4.36. Petrol Starvation on the Ph.III. Attached is a copy of a report on tests carried out on the Ph.III to clear up the petrol… | ||
| scan0155 | Tests at Brooklands on a Phantom III with a Stromberg carburetter to address a petrol starving issue. | ||
| View original record | HS/PD.10/JH.6.4.36. 36-EX at Brooklands. A series of tests have been carried out at Brooklands on the P.III with Stromberg carburetter fitted to determine the petrol starving point, and arrange for… | ||
| scan0156 | Vehicle performance tests, detailing speeds, carburettor settings, and fuel/oil consumption. | ||
| View original record | -2- HS/PL.10/JM.6.4.36. Cut out open Lap - 90.53 m.p.h. 1/2 mile - 94.74 m.p.h. Result clear. Test 4 2nd Carburettor. Pumps, flex, pipe line in the V but the petrol feed taken up directly under the… | ||
| scan0157 | Car's weight and performance issues with the top gear, engine, clutch, and crankcase breather. | ||
| View original record | -> Hs/FD.10/KW.6.4.36. Complete car weight - 52 cwts. 3 qrs. 14 lbs. Report. Top gear works out on the track but had never worked out under road conditions. Slipper wheel requires resetting, very bad… | ||
| scan0158 | Cover memo for a report on tests to resolve petrol starvation issues on the Phantom III model at high speeds. | ||
| View original record | X308 To E. c. to Sg. c. to Wor. c. to By. c. to MX. Hs/Rm.10/KW.6.4.36. Petrol Starvation on the Ph.III. Attached is a copy of a report on tests carried out on the Ph.III to clear up the petrol… | ||
| scan0159 | Test report on resolving petrol starvation issues for the 36-EX Phantom III car at Brooklands. | ||
| View original record | Hs/FD.10/JH.6.4.36. 36-EX at Brooklands. A series of tests have been carried out at Brooklands on the Ph.III with Stromberg carburetter fitted to determine the petrol starving point, and arrange for… | ||
| scan0160 | Test results report detailing carburetter performance, lap speeds, and fuel/oil consumption. | ||
| View original record | -2- Cut out open. Lap - 90.55 m.p.h. 1/2 mile - 94.74. m.p.h. Result clear. Test 4 2nd Carburetter. Pumps, flex, pipe line in the V but the petrol feed taken up directly under the needle seating.… | ||
| scan0161 | Car weight and performance issues including top gear, engine period, clutch, and crankcase breather faults. | ||
| View original record | -3- Hs/FD.10/HW.6.4.36. Complete car weight - 52 cwts. 3 qrs. 14 lbs. Re port. Top gear works out on the traxx but had never worked out under road conditions. Slipper wheel requires resetting, very… | ||
| scan0162 | Petrol supply issues with American-bodied Stromberg Ph.III carburettors. | ||
| View original record | To Wor. from Hs/Rm. c. to E. c. to Ey. c. to Hx. c. to Ray. Y 308 Hs/Rm.2/KW.9.4.36. Stromberg Carburetters - Ph.III. We should like to make it clear that our recent tests on the Ph.III have shown… | ||
| scan0163 | Modifications to the Phantom III Stromberg Carburetter to prevent starvation at high speeds. | ||
| View original record | To Sft. c. to Mx. X 305 HS/Swd1.10/JH. 9.4.36. Phantom III Stromberg Carburetter. The above carburetters which we are running on our experimental cars have had the floatchamber feed modified by R.A.C.… | ||
| scan0164 | Modifications to the Phantom III carburettor and petrol supply to overcome hot starting issues. | ||
| View original record | To BY. Copy to Ba. Hs/Rm. RHC. Hs/Swdl. 4308 E/PSN.1/MN.9.4.36. P. Dodd. Please follow up. Pm Phantom III Carburetter and Petrol Supply. We send you herewith LeC 5075 showing a float chamber vent pipe… | ||
| scan0165 | Instruction to make Ph.III Float Chamber lamp-post type Vents to drawing LeC.5137 for use on experimental car models. | ||
| View original record | To RHC. X308 Hs/FD.19/KW.27.5.36. Will you please instruct 3. Ph.III Float Chamber lamp-post type Vents to be made to LeC.5137, to be used on 32-EX, 36-EX & 37-EX. Hs/F.Dodd. | ||
| scan0166 | Carburation tests for the 36-EX model, detailing modifications and performance results. | ||
| View original record | 4308 To E. c. to By. c. to MX. Hs/FD.4/KW.3.6.36. 36-EX - Carburation Tests. The carburettor on this car has been modified in accordance with Hs/GR.5/JH.26.5.36, the alterations being - (1) A single… | ||
| scan0167 | Request to manufacture gland springs for the Phantom III carburetter to a specific design. | ||
| View original record | X308 To RHC. Hs/Swdl.6/JH.5.6.36. Phantom III. Will you please make up several springs to the following specification. These are in conjunction with a memo. issued from design, E/JNR.1/HP.3.6.36. for… | ||
| scan0168 | Request for a report on the cast breather for the Phantom III. | ||
| View original record | X308 To Hs/FD. Hs/Rm.20/KW.10.6.36. Will you please issue a report on the cast breather on the Ph.III. Hs/Rmg | ||
| scan0169 | Confirming the passing of the cast breather for the Phantom III. | ||
| View original record | To E. X306 Hs/Rm.11/KW.12.6.36. We have passed the cast breather for the Ph.III. Hs/Rm. | ||
| scan0170 | Investigation into petrol spray from the Phantom III float chamber vent pipe under braking and full bore flooding conditions. | ||
| View original record | To Rm. x308 Hs/FD.11/KW.23.6.36. Phantom III Float Chamber Vent Pipe. GWH/HFH has reported that petrol spray has been observed coming from the float chamber vent pipe when the car is braked severely;… | ||
| scan0171 | Float chamber vent position tests and an attached sketch of a new vent pipe. | ||
| View original record | -2- Hs/FD.11/KW.23.6.36. Tests have been made with the vent moved to the centre of the float chamber but no advantage has been found, the present position is equally satisfactory. Attached is sketch… | ||
| scan0172 | Recurring failures with the leather plunger on the accelerator pump of the Phantom III carburetter. | ||
| View original record | X308 SWDL We must see Fisher. What are our American Carbs like? Why not pump like 20/25-Carb. Hs/Rm from Mx. Mx18/T21.8.36 PHANTOM III CARBURETTER We have already voiced our misgivings about the… | ||
| scan0173 | Modification to the Phantom III Air Silencer end plate fixing. | ||
| View original record | Handwritten: x308 Wynne any comments? Ru P This is O.K. Loxs G Typed: To SY. [Strikethrough] Copy to Mr Hives (Print). Mr Barrington [Strikethrough] Hs/Rm. Mr Wormald. [Strikethrough]… | ||
| scan0174 | Testing of a lightened accelerator pump gland spring for the Phantom III carburetter. | ||
| View original record | To HY. [strikethrough] Copy to Mr. S.W.S [strikethrough] S.W.S [strikethrough] Hs/Wm. Mr. Swindell. Liles 3.08 E/PSN.2/MN.13.10.36. Swdl How are these going? Pm Phantom III Carburetter Accelerator… | ||
| scan0175 | The modification to remove screwdriver slots from the Phantom III carburetter's float chamber lid set screws. | ||
| View original record | To BY. Copy to RHO. RM. Mr. Dr. X308 E/PSN.3/MN.31.10.36. Phantom III Carburetter. Removal of Screw Driver Slots in the Set Screws of the Float Chamber Lids. We send you herewith LeC.5358 showing the… | ||
| scan0176 | Carburation issues, specifically loading up at low speeds and fuel level problems in the floatchamber. | ||
| View original record | To Rm. from Rm/GR. 308 1.12.36. PH.III. CARBURATION The worst feature is the loading up at low speeds (15 M.P.H.) full throttle. The following explanation will account for and almost cure the trouble… | ||
| scan0177 | Further carburation tests for the Phantom III model, focusing on fuel levels, pumps, and float mechanisms. | ||
| View original record | 308 To Rm. c. to Rm/JBD. [struck through] Rm/GR.2/JH.14.12.36. Further tests have been carried out on the Ph.III relative to the report on carburation (1.12.36.). The fuel level in the floatchamber,… | ||
| scan0178 | Petrol consumption tests for the 37-EX model with various carburettor settings. | ||
| View original record | 308 To Rm. Rm/GR.2/JH.5.1.37. PETROL CONSUMPTION TESTS ON 37-EX. STANDARD CARBURETTOR. Main Jets. Byepass jet. AVERAGE SPEED 42 M.P.H. 50 M.P.H. .058 .060 10.5 M.P.G. 9.1 M.P.G. STANDARD. .058 .056… | ||
| scan0179 | Removing the outside spark plug on the Phantom engine and improving plug accessibility on the 4-port head. | ||
| View original record | -308, Rm/Swdl. from Rm. Rm6/R.12.1.37. We contemplate doing away with the outside plug on the Phantom engine. In our experience it gets fouled the more easily of the two, and we consider that one plug… | ||
| scan0180 | Request to modify a Phantom III carburetter. | ||
| View original record | To HPS. Rm/GR.1/JH.3.3.37. Will you please modify a Phantom III carburetter (No.0407.R.) No.LeC.5470 carburetter supplied by Rm/GR. from production. Rm/G.Ratcliffe. | ||
| scan0181 | Request to HPS to make six sets of parts for a stronger throttle spring (P.III). | ||
| View original record | e 308 To HPS. Rm/GR.22 /JH.9.3.37. Will you please make up six sets of parts to LeC.5335 (Stronger throttle spring P.III). Rm/G.Ratcliffe. | ||
| scan0182 | Modifications to the Phantom III Induction System for improved breathing. | ||
| View original record | 308. E/PSN.4/MN.13.3.37. To HRS. Copy to- De. BY. Rm. Rm/Swdl. PHANTOM III Induction System. Modifications for Improved Breathing. An examination of the Phantom III Induction System layout from the… | ||
| scan0183 | Request to manufacture 5 sets of parts for the conversion of Phantom III carburettors. | ||
| View original record | To HPS. 308 Rm/GR.4/JH.18.3.37. Will you please have made 5 sets of parts to Lec.5470. These are for conversion of Phantom III carburettors which require modifying as and when available on Exp. cars.… | ||
| scan0184 | Sticking throttles on Phantom III carburetters and a plan for investigation. | ||
| View original record | 308 W/N. Br. from Rm/Gry. Rm/Gry6/R.22.3.37. P.III CARBURETTERS. We hear there have been six cases of P.III throttles sticking, due to some part of the mechanism between the frame and the engine… | ||
| scan0185 | Troubleshooting difficult starting issues on a Phantom III when hot. | ||
| View original record | 308 Rm/Gry. Rm/GR.7/JH.16.4.37. Phantom III Difficult starting when hot. Chassis 3-AX-21. Customer Mr. Rossage. Cricklewood. Car tested on road accompanied by Mr. Fisher, Stromberg representative and… | ||
| scan0186 | Page 2 of a report detailing engine faults discovered during testing, with a summary of issues and suggested remedies. | ||
| View original record | -2- Switch box dismantled and found O.K.; ignition switch contact pressure increased slightly for both ignitions. Slack in hand throttle control reduced a little. Engine run light after resetting… | ||
| scan0187 | Instruction to fit stronger throttle springs (LeC.5335) to specific Phantom III cars. | ||
| View original record | 8 308, To HPS. Rm/Gr.7/JH.17.4.37. Ref. Rm/GR.22/JH.9.3.37. Will you please fit stronger throttle springs LeC.5335 to all Phantom III cars as and when available in either garage or fitting shop. Cars… | ||
| scan0188 | Modifications to the Phantom III Induction System for improved breathing. | ||
| View original record | To HPS. Copy to Dg. B. Rm. Rm/Swdl. E/PSN.1/MN.20.4.37. 308 Phantom III Induction System - Modifications for Improved Breathing. Further to our memo. E/PSN.4/MN.13.3.37 on the above subject, we now… | ||
| scan0189 | Standardisation specification for the Stromberg carburettor EEC42, detailing new parts and alterations. | ||
| View original record | Rm/py. 308? P3 Carb File Standardisation of Stromberg carburettor EEC42 to L.E.C. 5470. Object:- Improvement in carburation & consumption; more consistent fuel level with S.U. Pumps. Two schemes are… | ||
| scan0190 | Note on a stop pillar modification and the standardisation of a stronger throttle spring with part number changes. | ||
| View original record | The stop pillar which is cast in the float chamber should not be machined as present standard. This should be left intact as originally. Standardisation of stronger throttle spring P.H. III. L.E.C.… | ||
| scan0191 | Investigation into the cause and cure for engine flooding on the Phantom III model. | ||
| View original record | 308 Lds. C. Mr. By. Rm. RHC. Fm/SWH. DA-ISH. Phantom III Flooding. With reference to the above trouble, evidence points to its nature being epidemic, and we, therefore, look for some reason to… | ||
| scan0192 | Investigation into filter plug failures and material recommendations for Stromberg carburetters on various chassis. | ||
| View original record | (2) Stromberg was fitted. The filter gauze on the 25/30 was specified to be the same as a Stromberg sample when the Stromberg carburetter was adopted on this chassis. The presence of the aluminium… | ||
| scan0193 | Future arrangements for cleaning parts with a reamer and a preference for copper asbestos joint washers over aluminium. | ||
| View original record | (3) We have arranged for these in future to be cleaned out with a suitable reamer in a fixture. We also want a bigger chamfer specified on the plug thread or a lead-in and chamfer combined, which… | ||
| scan0194 | Investigation into carburetter flooding on the Phantom III model, identifying the cause as aluminium filter bodies and mandating a switch to brass filters. | ||
| View original record | Sg. from Rm/GWH. Hs. Rm. P. By. Dev. Hdv Br. Spt 308 Rm12/R.19.5.37. P.III. Carburetters Flooding. From the investigations into the trouble with carburetters flooding, we have gained sufficient… | ||
| scan0195 | Investigation into the cause of carburetter flooding on the Phantom III model. | ||
| View original record | HS. from Rm/GWH. E.B. Rm. Rm. 308 Rm/GWH.7/R.20.5.37 P.III. CARBURETTERS - FLOODING. Mx. E. and myself have investigated the cause of carburetter flooding on Ph.III. Several cars in the Test Dept.… | ||
| scan0196 | Petrol flow tests and test bed results for a filter gauze on a Phantom III engine. | ||
| View original record | -2- Rm/GWH7/R.20.5.37. Petrol flow tests:- Fine gauze passes 1 pt in 8 secs. Coarse " " 1 " " 7 " The 1 pt in 8 secs. equals 450 pts per hr. The requirements of the P.III engine is (max) 120 pts per… | ||
| scan0197 | Request for the return of a faulty Phantom III carburettor from Sir John Leys' car due to repeated flooding issues. | ||
| View original record | W/N - Br. 308 also 361 Rm/GR.14/JH.24.5.37. Will you please return to Derby the Phantom III carburettor off Sir John Leys' car, marked for the writer's attention. It is understood that this… | ||
| scan0198 | Carburetter flooding issue on the Phantom III model and standardising parts with the Wraith. | ||
| View original record | 308 Sg. from Rm. Hs. Hd. E. MX. By. W/H - Er. Da. W/S - Sr. Rm1/R.25.5.37. P.III CARBURETTER FLOODING. Replying to Sg19/E20.5.37., we ought not to have standardised something on the P.III which was… | ||
| scan0199 | Recurring carburettor flooding issue in a Phantom III, detailing the investigation and findings. | ||
| View original record | TO HS c. to E. c. to Rm. c. to WX. c. to RHC. c. to Hd. 308 also 1113 Cricklewood, May 27th, 1937. Phantom III Carburettor Flooding. Sir John Lee Phantom III carburettor for the third time flooded… | ||
| scan0200 | Schemed drawing of the Phantom III carburetter from Strombergs. | ||
| View original record | 308 E. from Rm. c. to Hs. Rm15/R.31.5.37. P.III CARBURETTER. We have now received a schemed drawing from Strombergs of the P.III carburetter brought up to date on the lines of the various improvements… | ||
| scan0201 | Customer complaints of the Phantom III model flooding and failing to start on hills, requesting that instructions be written for the user manual. | ||
| View original record | 308 Rm/GR. from Rm. Rm9/R.31.5.37. STARTING ON THE P.III. Customers are complaining that they cannot start the P.III on hills. We know the P.III will flood when facing up a steep gradient. We have… | ||
| scan0202 | Procedure for checking fuel level on a Phantom III to resolve issues with starting when hot. | ||
| View original record | To Hd. (Depot Sheet). 308 Rm/GR3/R.1.6.37. PHANTOM III - STARTING WHEN HOT. Correct fuel level is .600" to .625" at the accelerator pump well. This can only be checked as follows:- (1) Remove air… | ||
| scan0203 | Aluminium deposits in Phantom III carburettor floatchambers during assembly. | ||
| View original record | Rm/GWH.- Kingsbury. 308 Rm/GR.7/JH.30.6.37. Phantom III Carburettors. Aluminium deposits in floatchamber. This is created mainly on final assembly. The lamp post breather should have the threaded… | ||
| scan0204 | Changing the float needle seatings on Phantom III E.E.C. 42 carburettors to prevent flooding. | ||
| View original record | To Rm. c. to By. 308 Phantom III E.E.C. 42 carburettors. When the high pressure pumps are fitted in the frame, it will be necessary to change the float needle seatings on the above E.88115… | ||
| scan0205 | Request to manufacture parts for a Phantom III throttle spring bracket. | ||
| View original record | To HPS. 308 Rm/GR.9/JH.12.8.37. Phantom III Throttle spring bracket. Will you please have the necessary parts made to LeC.5791 as soon as possible. 3 sets are suggested for 32, 37 and 39 - EX. Rm/GR. | ||
| scan0206 | The suitability of existing press tools for a simplified Phantom III throttle spring bracket. | ||
| View original record | BT. from RHC. c. to Rm. c. to Hc. RHC.2/LS.13.8.37. PHANTOM III. THROTTLE SPRING BRACKET. We have looked into the question of press tools for producing the simplified design of bracket shown on… | ||
| scan0207 | Standardisation of parts relating to the replacement of an over-stressed throttle spring for the Phantom III. | ||
| View original record | RR 755 (10H) 38137 7-4-37 WHK 26070 COMPLETED 26.8.37. PHANTOM III STANDARDISATION OF PARTS. Date 18.6.37. X No. 308. Drawing No. Part List Description of Parts E.88488 Spring Throttle Control… | ||
| scan0208 | Cost estimation for new tools required for the 'E' Series chassis production. | ||
| View original record | Estimated Cost of New Tools £30. Could be brought on to production at the 1st. Chassis in "E" Series (without Scrap) (Text bleeding through from reverse side of page): MOTION IN STANDARDISATION OF… | ||
| scan0209 | Flooding carburetter on a Phantom III, chassis 3-BT-149, caused by a foreign object. | ||
| View original record | To By. from Rm/GWH. c. to Rm. c. to Mx. 308 Rm/GWH.4/N.9.9.37. Re: Phantom III Carburetter - 3-BT-149. This car was held up for flooding of the carburetter. The cause was found to be due to a bristle… | ||
| scan0210 | Specification change for the Phantom III carburettor throttle spring links following a failure. | ||
| View original record | To BY/CS. 308 Rm/GR.18/JH.17.9.37. re Phantom III Carburettor Section 5080. Will you please make sure that the throttle spring links E.87856 is made with 16 S.W.G. .064" dia. instead of 18 S.W.G.… | ||
| scan0211 | Request to convert a Phantom III carburetter floatchamber back to standard specification. | ||
| View original record | To HPS. from Rm/GR. X 308 Rm/CR.4/MH.28.9.37. PHANTOM III CARBURETTER No. 0407 R. Will you please convert the floatchamber of the above carburetter back to standard. This has the reduced float ratio… | ||
| scan0212 | Recommending alterations for the Phantom III carburetter. | ||
| View original record | To By. from Rm/GR. Rm/GR.13/MH.12.11.37. PHANTOM III CARBURETTER - SECTION 5080. We are recommending for immediate use on production the following alterations. These alterations apply to all cars… | ||
| scan0213 | Phantom III carburetter consumption tests following alterations to main jets and choke spring. | ||
| View original record | 308 if any changes file in 124a. Rm/GR.6/MH.16.11.37. PHANTOM III CARBURETTER - SECTION 5080. REPORT ON CONSUMPTION TESTS. The following alterations were found to give improvement in consumption. Main… | ||
| scan0214 | Comparison of fuel consumption increases at various speeds and gear settings for two vehicle models. | ||
| View original record | -2- Rm/GR.6/MH.16.11.37. Consumption M.P.G. 35-EX 37-EX. Increase with .056 jets at 45 MPH. 0.8 0.2 " " " " " 60 MPH. 0.7 0.4 " " " " " Overdrive 2.0 -- " " .058 " Overdrive -- 1.4 Tests carried out… | ||
| scan0215 | Modification instructions for the 30 HP carburettor to prevent exhaust spitting on overrun. | ||
| View original record | To Hd. (FOR DEPOT SHEET.) Rm/GR.4/JH.18.11.37. 30 H.P. CARBURETTOR MODIFIED TO AVOID SPITTING IN EXHAUST ON OVERRUN RM.467. This depot sheet to replace No.Hd.354 withdrawn from circulation. (1) Remove… | ||
| scan0216 | Modifications to the DC 42 idle system to cure spitting on the overrun. | ||
| View original record | IDLING AIR SCREW REPLACED WITH PH III BLANK BLANK OFF SMALL SYPHON HOLE. ON OLDER TYPE IDLE PASSAGE DIA. TO BE REDUCED FROM .145" TO .100" P III METERING SCREW IDLE DISCHARGE HOLE ENLARGED TO .046"… | ||
| scan0217 | Overstressing of the Phantom III carburetter throttle return spring and the specification for a proposed replacement. | ||
| View original record | To By. from Rm/GR. 368 Rm/GR.1/MH.25.11.37. PHANTOM III CARBURETTER - SECTION 5080. E.58851 Throttle return spring. E.88302 Link. We would like to draw your attention to the above spring which is… | ||
| scan0218 | Stress levels and alternatives for throttle return springs on Phantom III and 30 HP models. | ||
| View original record | To Hy. c. to WX/Scott. c. to Rm/GWH. 308 also 608 Rm/GR.10/JH.23.12.37. PHANTOM III & 30 H.P. Throttle return springs. With reference to Rm/GWH.3/EH.14.12.37. We certainly agree that the Phantom III… | ||
| scan0219 | Query regarding the necessity of returning Phantom III carburettors to the Zenith Co. for fitting weaker jets. | ||
| View original record | 308 Rm/GR. from Rm. Rm5/R.18.1.38. We understand that the weaker jets in the P.III carburetter which have now been standardised, necessitate the carburetters going back to the Zenith Co. for fitting.… | ||
| scan0220 | The standardisation of Phantom III carburetter jets and stronger choke torsion springs. | ||
| View original record | 608 308 Rm/GR. from Rm. Rm5/R.18.1.38. We understand that the weaker jets in the P.III carburetter which have now been standardised, necessitate the carburetters going back to the Zenith Co. for… | ||
| scan0221 | Road and bench tests for Phantom III petrol drain ball valves following complaints of carbonising. | ||
| View original record | To By. c. to Da. c. to Mx. c. to Rm/G.H. file 308 Rm/GR.9/JH.1.2.38. PHANTOM III PETROL DRAIN BALL VALVES. Complaint of ball valves carbonising. The following road and bench tests were carried out on… | ||
| scan0222 | Test results and details for various float chamber ball drain valve configurations and conversions. | ||
| View original record | -2- Rm/GR.9/JH.1.2.38. (1) .140 seating single ball valve at bottom end of manifold drain pipe and separate drain pipe from floatchamber cover. Ball drain 12 pts/hr. Floatchamber drain 132 pts/hr both… | ||
| scan0223 | Manufacturing of taper washers for Phantom III carburettors. | ||
| View original record | 308 W/S - Cx. from Rm/FD. Rm/FD.1/JH.2.2.38. re PHANTOM III CARBURETTORS. We have had great difficulty with the Zenith Carburettor Co., in trying to find a suitable material with which to make taper… | ||
| scan0224 | Modification of trials Phantom III carburettors at Lillie Hall. | ||
| View original record | 308 To Cx. from Rm/FD. Rm/FD.12/JH.7.2.38. We shall be ready to modify the trials P.III. carburettors on Wednesday next, the 9th inst. If you could arrange to have the cars at Lillie Hall, we could… | ||
| scan0225 | Carburettor main jet standardisation for the Phantom III. | ||
| View original record | To By. c. to Mx. 308 Rm/GR.7/JH.13.2.38. PHANTOM III CARBURETTOR - SECTION 5080. With reference to memo. Rm/GR.13/MH.12.11.37. it was recommended that smaller main jets .056 should be standardised.… | ||
| scan0226 | Enclosing a blueprint of a Phantom III carburettor showing an altered petrol level. | ||
| View original record | W/N -> Br. 308. Rm/FD.4/JH.9.3.38. We enclose blue print of Phantom III carburettor showing the altered petrol level with the taper packing fitted. This applies to all the trials cars. Rm/FD. | ||
| scan0227 | Carburettor faults including flooding and sticking chokes on Phantom III and 30 HP models. | ||
| View original record | W/N. To Br. from Rm/GR. c. Rm/GWH. 308 Rm/GR.11/MH.14.3.38. PHANTOM III CARBURETTORS. Will you please return any future carburettor that is flooding to the works, addressed for the attention of… | ||
| scan0228 | Carburettor petrol level causing difficulty starting on a steep incline. | ||
| View original record | N/W. Rm. 308. Br/G34/G.28-3-38. re. Tech.P-III - Carburetter Petrol Level. With reference to Rm/FD4/JH.9-3-38, and to the Blue Print - E/88115 enclosed therewith, shewing the altered petrol level,… | ||
| scan0229 | Recommendation regarding carburetter flooding on the Phantom III model, suggesting machining the induction pipe flange at an angle. | ||
| View original record | ✓Sg. from Rm. ✓Hs. ✓c. By. ✓c. RHC. ✓c. Da. Jc. MX. ✓c. LA. 308 CARBURETTER FLOODING ON P.III. We recommend that the wedges now running on Trials cars to tilt the carburetter should not be put on… | ||
| scan0230 | The sending of various packings and washers to stores with a request for despatch to Cricklewood. | ||
| View original record | 308. To Hd/FC. c. to D/BP. Rm/FD.10/JH.29.3.38. We are sending into the stores - 1 aluminium packing. 2 Cooperite packings. 4 Steel washers. Will you please despatch these today certain to Br/G. at… | ||
| scan0231 | Dispatch of parts to address a difficult starting issue with a Phantom III carburettor. | ||
| View original record | W/N - Br/R. 308 Rm/FD.9/JH.29.3.38. re Phantom III Carburettor. We are despatching today under separate cover 1 aluminium taper packing. 2 Cooperite joint washers. 4 taper steel washers. These are for… | ||
| scan0232 | Flooding tests for the Phantom III Stromberg T.P.C. 42 carburettor. | ||
| View original record | 388 308 ? To By. c. to Hs. c. to Mx. c. to Rm/GWH. Rm/GE.6/JH.4.4.48. PHANTOM III STROMBERG T.P.C. 42. Report on flooding tests. A number of seats and needles were inspected and tested as follows :-… | ||
| scan0233 | Test report on carburettor float mechanism, seatings, and needles, including buoyancy and flood tests. | ||
| View original record | -2- Rm/GR.6/JH.4.4.38. Seatings were also tested with good finished needles and proved to be far more satisfactory than the needles. A buoyancy curve of the float mechanism was taken there being no… | ||
| scan0234 | Buoyancy curve graph for Phantom III F.EC 42 Stromberg carburettors with a 1/2 degree backward tilt. | ||
| View original record | BUOYANCY CURVE FOR PH.III F.EC 42 STROMBERG CARS. NORMAL MOUNTING 1/2° BACKWARD TILT FLOODING POINT Y-AXIS: GRAMS THRUST ON NEEDLE. FLOAT BUOYANCY X-AXIS: FUEL LEVEL. (MEASUREMENT FROM TOP OF F/C… | ||
| scan0235 | Faulty Phantom III carburetters causing flooding, attributing the issue to the needle finish. | ||
| View original record | W/N. To Br. from Rm/GR. c. Rm/GWH. 308. Rm/GR.3/AP.13.4.38 Phantom III. Carburetters. Will you please return any future carburetter that is flooding to the makers. Inspection, tests and… | ||
| scan0236 | Requesting an order number for servicing work on Phantom III carburetters from two chassis. | ||
| View original record | 308 To D/BP. from Rm/GR. c. HPS/WSC. Rm/GR.2/AP.13.4.38 PHANTOM III. CARBURETTERS. Will you please supply an order number for the work carried out on the following chassis- 3.BU.122 and 3.AZ.106. Both… | ||
| scan0237 | The supply and standardisation of Anodic Oxide treated petrol drain ball valves for the Phantom III and 30 HP Wraith. | ||
| View original record | 304. To By. S. to Ds. Rm/GR.1/JH.30.4.38. Phantom III - Petrol drain ball valves. Anodic Oxide treated. A supply of the above has been arranged by Mx/Scott, 50 for Cricklewood and 50 for Hd. at Derby.… | ||
| scan0238 | Price list for carburettors and a clutch for various car models. | ||
| View original record | 308 . Phantom II Carburetter E84480 Retail Price £ 19-10-0 Cost to R.R. Ltd £ 10-11-4 R.R. 20/25 S.U. Type Carburetter F60092 Retail Price £ 13-10-0 Cost to R.R. Ltd £ 8-12-10 R.R. 20hp Carburetter… | ||
| scan0239 | Requesting an alteration to the mesh of carburetter filter gauze for the Wraith and Phantom III models. | ||
| View original record | 308 also 608 γ To By/CS. from Rm/GR. Rm/GR.8/MH.13.7.38. CARBURETTER FILTERS ECD.137. Will you please alter the mesh of the filter gauze on E.60579 to 100/1" instead of 60/1". This applies equally to… | ||
| scan0240 | Phantom III carburetter complaint regarding carbonising ball valves and a request for test parts. | ||
| View original record | 308 To HPS. from Rm/GR. Rm/GR.11/MH.18.7.38. PHANTOM III CARBURETTER. COMPLAINT OF BALL VALVES CARBONISING. Will you please make one set of parts to E.CD.562 and one additional valve assembly E.89305.… | ||
| scan0241 | Inspection report on a Phantom III carburetter (3CFA.19) following a fire. | ||
| View original record | B88 To By. c. to Hs. c. to Mx. RM/GR.1/JH.19.8.38. PHANTOM III CARBURETTER 3CFA.19. The above carburetter was inspected and tested out on 35.EX. at By's request. This unit had caught fire through a… | ||
| scan0242 | Despatch of two excess Phantom III carburettors to the Zenith Co. for overhaul. | ||
| View original record | 308. W/N - Br/G. from Rm/GR. Rm/GR.8/JH.31.8.38. PHANTOM III CARBURETTERS. We have two of the above carburettors in excess stock Nos.0061 and 0230U which are being despatched to the Zenith Co. to be… | ||
| scan0243 | The service stock of Phantom III Carburetters for the Cricklewood location. | ||
| View original record | N/W. Rm/GR. Br/Gl/M. 1.9.38. re, Technical - Phantom III Carburetters. -------------------------------------- /308 Thank you for your Rm/GR.8/JH.31.8.38. Actually we already have three service… | ||
| scan0244 | Graph comparing the power output curves (BHP and BMEP) for the Phantom III and Bentley III engines with open exhausts. | ||
| View original record | POWER OUTPUT PHANTOM III AND BENTLEY III. 308 deep 408C OPEN EXHAUST CURVES. PH. III 7.3 LITRES 6.5:1 RATIO BEN. III 4.25 LITRES 6.5:1 RATIO PH. III. DUPLEX CARB: 1 PER BANK 6. BEN. III TWO SEPARATE… | ||