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).
Recommendation to adopt a .010' tappet clearance as standard for 'M' Series Bentley engines.
| Identifier | ExFiles\Box 88\4\ scan0218 | |
| Date | 26th January 1939 | |
| BT{Capt. J. S. Burt - Engineer} c Rm{William Robotham - Chief Engineer}/TMW c MW c Mr c Hd{Mr Hayward/Mr Huddy} c Rm{William Robotham - Chief Engineer}/swdly 25H? HMW Is this OK Yes, I asked for it Fred LA{L. A. Archer}11/T26.1.39 'M' Series Bentley - Tappet Setting. We have now run six chassis with a tappet clearance of .010" and we find this clearance perfectly satisfactory, both as regards noise and slow running. We are therefore recommending that this clearance is adopted as standard for 'M' Series Bentley engines. LA{L. A. Archer} | ||