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).
List of modifications and part specifications for various engine and chassis components.
| Identifier | ExFiles\Box 18\3\ Scan367 | |
| Date | 10th October 1932 | |
| -2- RHC{R. H. Coverley - Production Engineer}/WSC{W. S. Cassel}9/AP.10.10.32 Spring Drive LOP. E.{Mr Elliott - Chief Engineer} 79915 - LeC. 3104. - Con:- E.77394 - Pressure Plate. - Mod. to EX.8683 E.75618 - Friction Ring - Mod. to EX. 8684. Damping Friction Load - 16 lbs at 17 3/4" Rad. Driving Spring Load - 22 lbs at 17" Rad. Flywheel & Clutch Stronger Clutch Springs fitted as details:- Hs.{Lord Ernest Hives - Chair} 652 - Clutch Springs. Hs.{Lord Ernest Hives - Chair} 666 - Clutch Fingers. Hs.{Lord Ernest Hives - Chair} 687 - Clutch Operating Lever. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 78312 - Flywheel Cover & G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 75554 Ferrule modified to give clearance for Clutch Fingers. Carburetter LOP. E.{Mr Elliott - Chief Engineer} 83075. LeC. 2972 - 3026-3061-3029. Semi Expanding Carburetter - ex. 19-EX -Fitted Inlet Pipes. LeC. 3981-2-3026 To suit Expanding Carburetter - ex. 19-EX. E.{Mr Elliott - Chief Engineer} 82946 - Inlet Pipe. E.{Mr Elliott - Chief Engineer} 83046 - Jacketted Induction Bend. Exhaust Fittings. Exhaust System as shown on Arrgt. - EX. 8808. Rear Silencer to Hs.{Lord Ernest Hives - Chair} 646/7. Expansion Box 9. SWG - S/M.{Mr Moon / Mr Moore} Straight Downtake Pipe -13. SWG - S/M.{Mr Moon / Mr Moore} Downtake & Intermediate Pipes - Lagged. Oil Pump LOP. E.{Mr Elliott - Chief Engineer} 82081 New Standard Pump fitted replacing Noisy Pump. Con:p | ||