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 specifications for various vehicle components.
| Identifier | WestWitteringFiles\C\September1919\ Scan26 | |
| Date | 1st September 1919 | |
| To BN.{W.O. Bentley / Mr Barrington} from R.{Sir Henry Royce} -2- R6/G27/9/19 Contd. SPRING DRIVE AND FRONT FLYWHEEL. - No change. WHEELCASE & GEARS. X.3670 - Build for reversed gear positions. WATER PUMP. X.3671 - Same direction of rotation as present pump, but delivering upwards from underside. OIL PUMP. X.3672 - Opposite hand and running in reverse direction. Alter worm drive. Oil piping same but left hand. OIL LEVEL COCK AND OIL TANK. X.3665 - To be reverse hand and on reverse side of chassis. BATTERY IGNITION X.3673. - H.T. distributor and L.T. contact breaker opposite hand and running in reverse direction i.e. direction dependent upon pump. GOVERNOR. X.3674 - Unaltered except in position, and runs in reverse direction. CARBURETTOR. X.3675 - Build reverse hand but with jet control threads as now to agree with marking on steering column. CONTROLS. X.3676 - Reverse hand. INDUCTION & EX- 3677 HAUST PIPES. 3692 SILENCER, PRIMING 3693 PIPES. - Transfer to reverse side of chassis. RADIATOR AND RADIATOR SPRING SUPPORT. X.3678 - Change radiator inlet to other side and make radiator spring support reverse hand. STARTING HANDLE. - No change. DASHBOARD. X.3679 - Reverse hand. DISTRIBUTION BOX OF ELECTRICAL SYSTEM AND SWITCH BOX. - Unaltered. CLUTCH. - No change. GEARBOX. X.3680 - Side shaft on other side and gear change built for central position. Probably retain present interlock but fit gear sliders with plunger control instead of having notches in the gate. It is not proposed to adopt the 4/13 box in its entirety, but most probably the 3 speed box like the new 20 HP. (Contd.) | ||