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).
The investigation into an engine's big end bearing failure on chassis B.100.HK.
| Identifier | ExFiles\Box 146\2\ scan0194 | |
| Date | 15th April 1937 | |
| To Bentley Motors Ltd. Derby Copy to ........... Hd{Mr Hayward/Mr Huddy} Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} D/BP 124r- Levallois Sr/VA2/ET.15.4.37 Re: CHASSIS B.100.HK{Col. T. Harker - Sales} - P. MICHELIN With reference to our VAI/ET.31.3.37, during the repairs to the engine of this car after the failure of N°4 big end bearing, we were unable to discover the cause of the trouble. There was no sign of oil leakage from any of the external or internal oil pipes, the remaining 5 big ends were quite free and there was no trace of any of them showing signs of seizure. Prior to the seizure, the oil pressure was O.K. Although the car was fitted with a standard oil pump, the oil pressure was always on the high side. Since attending to the bearings, however, we have fitted a large capacity oil pump. We are returning to Works N°4 connecting rod, as we think that it can be reconditioned and be good stock again. It has been labelled for your attention. Sr/VA. | ||