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).
High oil consumption in the Phantom engine, attributing the issue to the fit of bearings and piston rings.
| Identifier | ExFiles\Box 16\1\ Scan111 | |
| Date | 28th July 1930 guessed | |
| contd :- -7- to 3 pts/min. at 2500 r.p.m. This engine was fitted with piston rings similar to Silver Ghost - not 'L' shaped rings. Therefore in general we can say that high oil con-sumption on the Phantom is no mystery or peculiar to the design but depends upon the fit of the bearings and the piston rings. Attached is a curve showing the oil flow at different speeds for 12-EX which has carefully fitted hand scraped bearings and is the car to be used for the next 10,000 miles test. Hs{Lord Ernest Hives - Chair}/A.C.Lovesey. | ||