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).
Alternative materials for a part and proposing that sealing washers be fitted to inlet valves only.
| Identifier | ExFiles\Box 158\5\ scan0043 | |
| Date | 15th May 1939 | |
| -2- RM{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}7/EH.15.5.39. Although they do the job they are very fiddling to fit and Mx.{John H Maddocks - Chief Proving Officer} is of the opinion that an alternative material, fibre or soft alum would be more suitable, and which he is going to try out. In the meantime, we will instruct a number of sets of the Neoprene washer scheme for other experimental cars. In view of the fact that occasional sticking is experienced on the exhaust valves and that almost all the oil goes down the inlet valves, we propose that the sealing washers should be fitted to the inlet valves only. RM{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||