From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Instructions for an experiment fitting two single carburetters to a 20/25 HP chassis with a turbulent cylinder head.
| Identifier | ExFiles\Box 103\4\ scan0093 | |
| Date | 29th October 1931 | |
| Y5050. c. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} BY/CS1/EH.29.10.31. Re 20/25 HP Chassis - Cylinder - Section 5050. (Turbulent Head) Inlet Pipes - Section 5070. Carburetter - Section 5080. Two Single Carburetters to LeC.2924. Please receive herewith blueprints of the following, detailed to LeC.2919,2945 and 'R' Scheme 108 :- Section 5080. E.57305 Distance Tube - Air Intake E.57306 Set Screw - Air Intake E.57307 Stud - Air Intake Shell E.57308 Stud - Carburetter E.57309 Set Screw - Return Pipe Elbow R.R.Sch: 108 - Induction Pipes for Turbulent Head. Will you please instruct as required, together with the following:- Section 5050. E.76243 Set Screw (Pump Bend) 2 off replaces G.8515. E.31170 " (Gas Passage Bend)2 off. " E.26235. G.77324 " (Inlet Manifolds) 12 " " E.54941. G.54579 Stud(Exhaust Gas Inlet Bend to Manifolds) 4 off. K.4349 Nut ( " " " " " ) 4 " K.9007 F.S.Washer( " " " " " ) 4 " Remainder of parts as previously instructed, except that the following parts will not be required:- K.4008 Nut (Pump Bend) 2 off. K.4307 Nut (Cyl: Head Gas Passage) 2 off. K.4008 Nut (Inlet Pipe) 12 off. This completes instructions for this experiment viz:- Fitting the Single Carburetters LeC.2924. to existing Turbulent Cylinder Head, and is in conjunction with parts instructed in memos' BY/CS1/EH.8.10.31.& BY/CS1/EH.13.10.31. (Section 5070). BY/CS. | ||