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).
Persistent problem of gear rattles in the 25HP engine.
| Identifier | ExFiles\Box 136\1\ scan0064 | |
| Date | 21th July 1933 | |
| 8411 c Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer} from Mx.{John H Maddocks - Chief Proving Officer} Mx{John H Maddocks - Chief Proving Officer}6/T21.7.33. Re. 25HP ENGINE GEAR RATTLES. Sg{Arthur F. Sidgreaves - MD}8/E20.7.33. There is no question that this is a feature which has been a problem right from the beginning of the Synchro-mesh Series coinciding with the increased power output engine. We feel that even with all our knowledge and experience of this job and working to the finest possible limits with regard to pitch line clearances on gears, we do not know how to produce cars which are likely to remain entirely free from this trouble. Judging from some of the cases which have been returned to the Repair Dept. at the Works we feel we cannot by anything we can do with the existing design, expect to be entirely free from a percentage of complaints. In this latter connection we have despatched 816 Chassis of this type. It is reasonable to expect that at least 700 of these are in service. Mx{John H Maddocks - Chief Proving Officer} | ||