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).
Test report on a set of tappets fitted to vehicle 12-EX and run for 10,000 miles in France.
| Identifier | ExFiles\Box 171\1\ img056 | |
| Date | 22th September 1926 guessed | |
| Expl: Test Report - contd :- A set of these tappets were fitted to 12-EX and ran 10,000 miles in France. With the exception of No. 1 and 2 which became noisy through wear of roller pin, they were generally quieter. -------------------------- | ||