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).
Page discussing body noises, vibrations, and recommendations for sub-frame mounting and camshaft experiments.
| Identifier | ExFiles\Box 69\2\ scan0161 | |
| Date | 13th October 1924 | |
| R.R. 493A (20H) (D.A. 652 20-3-24) J.H.D. --2-- EXPERIMENTAL REPORT. Expl. No. REF: Hs{Lord Ernest Hives - Chair}5/LG13.10.24. is fitted to this frame compared with when it is fixed solid to the chassis frame. We are always in endless trouble on the 40/50 HP. with body noises, booms and vibrations. We recommend that the proposed covered body for EAC.11. should have a sub-frame mounting. We also recommend that we should experiment on the EAC.11. with a means of ensuring the Camshaft turning evenly. On this engine, similar to 20 HP. and 40/50 HP., we get irritating noises and rattles unless the engine gears are kept tight in gear and all clearances reduced to a minimum. Hs.{Lord Ernest Hives - Chair} | ||