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).
Request to test valve springs and associated parts for the front axle control damper on the Phantom 'F2' series chassis.
| Identifier | ExFiles\Box 67\2\ scan0338 | |
| Date | 11th November 1927 | |
| Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Y8420 BY/HEB{H. Biraben}14/M.11.11.27. PHANTOM CHASSIS "F2" SERIES. FRONT AXLE CONTROL DAMPER SEC:7160. Will you kindly test out and inform the D.O. if the following Valve Springs are suitable for the above.- F.75168 Low Pressure Valve Spring. 2 off per chassis. F.76548 High " 2 " We anticipate the Ball Pin loads will be 70 and 80 lbs. respectively. The above are Production springs and the load may be varied by the use of the following Production Packings.- F.75143/4/5 Washer for H.P. Valve Cover(Select to suit). F.73930, F.77140/1, Spring Cap for L.P. Valve(Select to suit). Please inform us as soon as possible so that we can order up the springs for "F2" Series. BY/HEB.{H. Biraben} JASB. | ||