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).
Requesting an investigation into repeated oil cooler failures on two Phantom III cars.
| Identifier | ExFiles\Box 131\1\ scan0289 | |
| Date | 17th August 1937 | |
| W/N. To Br.{T. E. Bellringer - Repair Manager} from Rm{William Robotham - Chief Engineer}/Std. 1114 Rm{William Robotham - Chief Engineer}/Std.6/AP.17.8.37 Referring to recent oil cooler failures on Ph.III. cars, we understand that two cars 3.AZ.104 and 3.AX.81 have each had two oil cooler failures. We are alarmed at this repetition on the same car and suspect that some defect may have occurred in the oil feed system which has resulted in the burst coolers - such as a sticking main relief valve. If this had occurred it is probable that the oil pressure gauge would be damaged i.e. would no longer return to zero or read accurately. Could you find out for us whether anything of this kind has occurred on either of these two cars and give us any information which you may have or be able to obtain relative to the failures. We should like to receive this at the earliest possible moment. Rm{William Robotham - Chief Engineer}/Std. | ||