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 tests on a Bentley oil pump regarding oil pressure loss.
| Identifier | ExFiles\Box 149\2\ scan0157 | |
| Date | 4th June 1937 | |
| To Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} 1265 Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}3/JH.4.6.37. Bentley Oil Pump. Will you please test effect of oil pressure loss after braking with and without the external Tecalemit filter, alsom with clean and dirty filter. The oil pump to be examined to make sure that it is standard, i.e. large capacity, 22° helical gears and bush without annular clearance round the flange. Rm{William Robotham - Chief Engineer}/GR.{George Ratcliffe} has carried out similar tests previously. Complete filter ex. B.3 (15,000 miles) can be used for the job. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||