High oil consumption on the Phantom engine, linking it to the fit of bearings and piston rings.
| Identifier | ExFiles\Box 72\1\ scan0131 | |
| Date | 1st May 1926 guessed | |
| contd :- -7- to 3 pts/min. at 2500 r.p.m. This engine was fitted with piston rings similar to Silver Ghost(1907 40/50 historic RAC 15,000 miles trial) - 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 shewing 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. 1804 Hs {Lord Ernest Hives - Chair} /A.C.Lovesey. MADE AT CROXLEY | ||
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).