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).
Experiment using metallic lead in oil to reduce carbon deposits on a piston crown, with plans for further development.
| Identifier | ExFiles\Box 54\4\ Scan097 | |
| Date | 2nd August 1933 | |
| -2- Hs {Lord Ernest Hives - Chair} /Rvce.2.8.33. Cont'd. {John DeLooze - Company Secretary} As it was thought that there was rather less tendency to form carbon deposits with this oil metallic lead was smeared over half the underside of the piston crown. This in no way affected the deposit. FURTHER DEVELOPMENT. It is hoped to get some comparative results with these oils on the R. {Sir Henry Royce} single cylinder during piston bedding tests about to be put in hand. Hs {Lord Ernest Hives - Chair} /H.S.Royce. | ||