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).
Query regarding a burnt valve on chassis G.F.54, noted as the first case with 45° angle seating.
| Identifier | ExFiles\Box 47\5\ Scan001 | |
| Date | 8th September 1924 | |
| To BY. {R.W. Bailey - Chief Engineer} from Hm. {Capt. W. Hallam - Head Repairs} " Hs. {Lord Ernest Hives - Chair} C. to Wer. X4118 Hm {Capt. W. Hallam - Head Repairs} 14/W8.9.24. Chassis No. G.F.54 - Wilson. This car was turned out with Valves cut at an angle of 45°. One of them has burnt at the seating. This is the first case we know of burning valves with 45° angle seating. Will you please let us know whether you can recommend anything should be done beyond changing of the valve in these cases. Hm. {Capt. W. Hallam - Head Repairs} [Handwritten Initials] | ||