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).
High-pitched squeal from the large capacity oil pump on Bentley Chassis after starting from cold.
| Identifier | ExFiles\Box 149\2\ scan0174 | |
| Date | 7th February 1938 | |
| BY c to Rm.{William Robotham - Chief Engineer} 1265 Files Hd{Mr Hayward/Mr Huddy}/SB{Mr Bull/Mr Bannister}21/HR.7.2.38. LARGE CAPACITY OIL PUMP. -------------------- Bentley Chassis. We have received a number of comments from Bentley Owners, of a high-pitched squeal for the first few minutes after starting up from cold. This has been after we have fitted a large capacity oil pump, and the noise is from the relief valve ball. Is there any cure for this, please? Powell What can we do GRG Hd{Mr Hayward/Mr Huddy}/SB.{Mr Bull/Mr Bannister}3 | ||