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).
Clutch failures on the 40/50 HP model due to oil contamination on the clutch surfaces.
| Identifier | ExFiles\Box 66\4\ scan0042 | |
| Date | 15th April 1926 | |
| HS.{Lord Ernest Hives - Chair} c. DY.{F R Danby} X.8300 EP{G. Eric Platford - Chief Quality Engineer}5/H15.4.26. re. 40/50 HP. Oil getting on to the Clutch Surfaces. ------------------------------------------- We still have occasional failures of the clutch, due to slipping, which appears to be due to oil from the centre universal joint getting on to the friction surfaces. Could some consideration be given to make sure that any excess of oil from this joint is directed so as to prevent it getting on to these friction surfaces? The groove behind the friction plate attached to the flywheel might be made deeper to advantage and more drain holes fixed, which holes could go to the bottom of the groove. In spite of the present drain holes on the flywheel, oil still collects in this groove. EP.{G. Eric Platford - Chief Quality Engineer} | ||