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).
Diagram illustrating an issue with exhaust valves hammering into the guide seating and the required alteration.
| Identifier | ExFiles\Box 5a\3\ 03-page073 | |
| Date | 25th November 1931 | |
| [ "H.S.495", "EXHAUST VALVES HAMMERING INTO", "BOTTOM OF SEATING ANGLE OF GUIDE", "MUST HAVE ALTERED.", "INLET", "EXHAUST", "EXHAUST PORTS", "THIS PORTION OF SEATING", "CLEAR OF VALVE", "G.W.H.", "18 G IV" ], | ||