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).
Issues with the Bentley Oil Gauge's thin copper wire link, which can lead to incorrect oil level readings and potential engine failure.
| Identifier | ExFiles\Box 131\4\ scan0272 | |
| Date | 8th June 1937 | |
| E.{Mr Elliott - Chief Engineer} from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} Rm.{William Robotham - Chief Engineer} 1113 Kingsbury. June 8th, 37. Bentley Oil Gauge. Kingsbury have raised the question regarding the thin copper wire link of the float linkage in the lower half. In their opinion it is too thin and of a soft nature which very easily becomes bent during cleaning operations and no one is the wiser. A case recently has arisen where a big end failure occurred. The oil level indicator when showing 1½ gallons there was actually only 1 gallon in the sump. They did not attribute the failure entirely to this, but it is possible that at times the engine has been practically without oil when the gauge has been showing an appreciable amount. They suggest a heavier gauge of wire which would require a reasonable amount of force to alter its setting. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||