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).
Tests to resolve a clutch slipping issue on car 19-G-IV by increasing teeth clearance.
| Identifier | ExFiles\Box 103\1\ scan0015 | |
| Date | 4th February 1933 | |
| FFLES. XS300 4.2.33. RE. CLUTCH SLIPPING. We have just concluded some tests on 19-G-IV. for the above trouble. As mentioned in a previous report we suspected the involute teeth on the pressure plate binding on the sides, due to insufficient clearance when overheated. We have confirmed this by increasing the clearance on each tooth at the sides from .005" to .010". This car is now free from clutch trouble, and we cannot re-produce any binding of the pressure plate by rough treatment or overheating. Hs{Lord Ernest Hives - Chair}/F.{Mr Friese} Dodd. | ||