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).
Letter to Raymond Mays of English Racing Automobiles Ltd. regarding oil pressure and a relief valve spring.
| Identifier | ExFiles\Box 90\4\ scan0108 | |
| Date | 6th August 1937 | |
| 261 65 Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}5/R.{Sir Henry Royce} 6th August, 1937. Raymond Mays, Esq., The English Racing Automobiles Ltd., Bourne, Lincs. Dear Mays, With regard to your telephone enquiry, an oil pressure of 3 1/2 lbs at tick-over and 24 lbs at high speeds is entirely in order on your car. We do not recommend the fitting of stronger relief valve spring. Yours sincerely, | ||