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).
Design of the vent pipe between the crankcase and carburetter to prevent oil entering the cylinder.
| Identifier | ExFiles\Box 72\1\ scan0090 | |
| Date | 13th November 1925 | |
| x5980 Hs{Lord Ernest Hives - Chair}8/LG13.11.25. CJ3/E5.11.25. To CJ. from Hs.{Lord Ernest Hives - Chair} Percy F.{Mr Friese} Chaplin Esq. Y740 In the design of the vent pipe between the crankcase and carburetter, precautions are taken to prevent oil making its way into the cylinder by this means. We have carried out tests and have not been able to find that a measureable amount of oil gets into the cylinder, via the breather connection between the crankcase and the carburetter. We use a similar fitting on the 20 HP. and on the Silver Ghost. Hs.{Lord Ernest Hives - Chair} | ||