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).
Engine overheating to 95°C and boiling, with details of a sticking valve that was subsequently resolved.
| Identifier | Morton\M1.2\ img002 | |
| Date | 11th May 1922 guessed | |
| 42 has constantly been about 95°C. & occasionally we have made it boil of course this is with the radiator louvres of fan working OK. Whilst on the roads we had a valve (No 9) stick open, this was eased off again & since have had no further trouble. J.R.Waldron | ||