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).
Recurring issues with burnt exhaust valves and comparing them with other valve types.
| Identifier | ExFiles\Box 5a\2\ 02-page278 | |
| Date | 5th April 1930 | |
| To: Hs{Lord Ernest Hives - Chair} From G.W.H. Hôtel de France Chateauroux 5/4/30 We sent you yesterday a telegram:- EXHAUST VALVES AGAIN BURNT FLATS STOP 2 NEW VALVES FITTED 3-SLVE 53158 O.K. We are able to keep the valves in use but the metal looks as if all the nature had been burnt out. The 3-SLV valves are in good condition with the same mileage. These valves were fitted to the previous engine 4-G-IV G.W.H. | ||