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).
The resolution of tappet noise on a Phantom model by adhering to drawing specifications.
| Identifier | ExFiles\Box 66a\2\ scan0007 | |
| Date | 11th December 1925 | |
| To Mx.{John H Maddocks - Chief Proving Officer} from Hs.{Lord Ernest Hives - Chair} c. to Wor.{Arthur Wormald - General Works Manager} X8060 Hsl/LG11.12.25. TAPPET NOISE ON PHANTOM. The only way to reduce the tappet noise is to produce the tappets to the clearance limits shown on the drawing. We attach a report from Mr. Coverley which shows that the second set of tappets you have sent us for the chassis which has had the complaint of noisy tappets, are not to the drawing. Hs.{Lord Ernest Hives - Chair} | ||