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).
Technical memo detailing adjustments to Phantom II suspension to address high-speed wobble.
| Identifier | ExFiles\Box 16\4\ Scan112 | |
| Date | 15th October 1929 guessed | |
| -2- no tendency for high speed wobble to be set up. On Phantom II cars prior to "K" series, the adjusting washer fitted under the valve cap is thinner than indicated on the attached print. It is probable, therefore, that should it be desired to raise the ball end load to 100-lbs there will be insufficient adjustment available. In such cases valve caps Front F.81399/400 and Rear F.81367 should be fitted. We recommend that loads of 100-lbs up and down should not be exceeded as otherwise the working parts of the damper are likely to be over-stressed. One other point is that if the damping load on the rear shock absorbers is reduced, in our experience the best results in getting a good low speed ride will be obtained by also reducing the load on the front shock absorber. HS{Lord Ernest Hives - Chair}/hm.{Capt. W. Hallam - Head Repairs} | ||