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).
Instruction memo detailing part replacements for a spring-loaded piston for the rear shock damper on the Phantom II & 20/25 HP chassis.
| Identifier | ExFiles\Box 16\4\ Scan297 | |
| Date | 12th May 1931 | |
| c. Hg/Rm.{William Robotham - Chief Engineer} RECEIVED 31 MAY X7520 BY/HEB{H. Biraben}7/M.12.5.31. PHANTOM II. & 20/25 HP. CHASSIS. SPRING LOADED PISTON FOR REAR SHOCK DAMPER X.7520. TO "N" SCHEME 3268. X.5520. PHANTOM II. REAR SHOCK DAMPER SEC: 7150. 20/25 HP. FRONT & REAR DAMPER SEC:7160/7150. Kindly receive one Blue Print of each of the following parts detailed to the above "N" Scheme.- @ F.83727 Piston for Shock Damper. 4 off. F.83728 Pin for Piston. 4 " @ An extra print of this part attached for Pattern Shop. These parts replace the following.- F.83565 Piston for Shock Damper. 4 off. F.83548 Pin for Piston. 4 " E.13488 Taper Pin. 4 " which appear on our memo' BY/HEB{H. Biraben}2/M.11.4.31. The remainder of this section is completed to the instructions contained in the above memo' with the exception of.- G.50413 Spring Washer 4 off, which is to be replaced by K.{Mr Kilner} 9006 Spring Washer 2-BA. 4 off. Please note that the Piston should be made in both Cast Iron and Brass. Kindly instruct the above parts as required. BY/HEB.{H. Biraben} HEB{H. Biraben} | ||