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).
Investigating a big end bearing failure on a customer's car, chassis B.47.HM, due to a loss of oil pressure.
| Identifier | ExFiles\Box 89\4\ scan0028 | |
| Date | 14th January 1937 | |
| To Sg.{Arthur F. Sidgreaves - MD} from Rm.{William Robotham - Chief Engineer} To Hs.{Lord Ernest Hives - Chair} c. to B. c. to By.{R.W. Bailey - Chief Engineer} c. to C. c. to H.{Arthur M. Hanbury - Head Complaints} 261. Big end Failure - Customer's Car - John Hutton Chassis B.47.HM{Capt. W. Hallam - Head Repairs} We examined this unit which was returned from Kingsbury. It will be remembered the big end bearing failed in something under a 1000 miles running. Examination indicated that the bearings had been short of oil and this was confirmed by the fact that a piece of foreign matter was found lodged under the relief valve, which would probably cause a serious loss of oil pressure. In our opinion, in view of the fact that this was a new engine, the loss of oil pressure was the cause of the big end failure. Hm.{Capt. W. Hallam - Head Repairs} | ||