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).
Summary of modifications required for the rear hydraulic shock dampers on a Phantom II chassis.
| Identifier | ExFiles\Box 16\4\ Scan277 | |
| Date | 11th April 1931 | |
| c. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X7520. BY/HEB{H. Biraben}2/M.11.4.31. PHANTOM II. CHASSIS. REAR HYDRAULIC SHOCK DAMPERS SEC:715. SUMMARY OF MODIFICATIONS REQUIRED FOR PRODUCING TO SPEC: SUPPLIED BY Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} TO PRELIMINARY DRG: F.83611. Kindly receive one Blue Print of each of the following parts.- @ F.83619 End Cover for Main Cylinder RH.{R. Hollingworth} 1 off, replacing F.81056. @ F.83620 " " " " LH.{Mr Haworth} 1 " " F.81057. F.83621 Valve Cover Plug (High Pressure) 2 " " F.83159. F.83622 " " " (Low ") 2 " " F.83160. F.83628 Joint Washer (Top Cover). 2 " " F.79924. @ An extra print of this part attached for Pattern Shop. Please instruct the above parts as required together with the following existing parts.- F.83565 Piston for Shock Damper. 4 off, replacing F81058. F.83608 Intermediate Lever. 2 " " F82926 and F82742. F.83548 Pin for Piston. 4 off. F.83549 Spring for Piston. 4 " F.83550 Wearing Pad. 4 " E.1268 Taper Pin. 4 " d K.4304 2-BA. Nut. 4 " d G.50613 Spring Washer. 4 " F.83578 Inner Ball Pad. 2 " replacing F79758. F.83580 Locating Washer for Ball Pin. 2 " F.83581 Distance Piece in Connt Tube. 2 " replacing F79391. F.83582 Ball End Pin. 2 " " F80398. F.83583 Main Lever R.H. 1 " " F82489. F.83584 " " L.H. 1 " " F82490. F.83585 Bush (Large) Main Cylinder. 2 " " F79389. F.83586 Top Cover for Main Cylinder. 2 " " F79387. F.83587 Connecting Tube. 2 off, replacing F79392, F79423, F79393, F79760. F.83599 Inner Ball Pad (Top). 2 off, replacing F.81150 F.83600 Gland Pressure Bush. 2 " " F.79914. F.83398 Spring for Connecting Tube. 2 " d To be Cadmium Plated. The remainder of this section is as instructed in our L.O.P. F.79925 with the exception of the following parts.- F.74566 Connecting Link. 4 off. F.81060 Nut for Piston. 2 " -Contd- | ||