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).
Series of engine component testing procedures and instructions.
| Identifier | ExFiles\Box 155\2\ scan0159 | |
| Date | 30th September 1937 | |
| 3. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}12/MH.{M. Huckerby}30.9.37. (6) Oil retainer device to prevent oil leak from rear main bearing to Rm.{William Robotham - Chief Engineer}459. Unit will require running in for several hours then continue endurance as follows - (a) 25 hours at Bentley endurance speeds. (b) Alternate 1 hr runs at full throttle and 1/4 load. (c) Oil inlet temperature to bearings controlled at 120°C. If OK at end of 25 hours, return to shop for quick inspection and if OK will be returned for further running. No. 5 Test Bed. B.18 Oil consumption tests in accordance with Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews} B.19. This unit to specification given in previous memo Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}1/MH.{M. Huckerby}5.9.37 to be fitted on bed as soon as convenient following its return from the shop after easing the big end bearings. To be tested with a view to being fitted in chassis, including oil consumption test. Timing gears to be quietened on production. No. 2 Bed. B.23 OHC. Information to be obtained regarding power loss to exhaust system and for new camshaft on lines of previous memo Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}1/MH.{M. Huckerby}5.9.37. | ||