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).
Request for a cold chamber test to measure oil circulation time at 0 degrees C, and a review of cylinder wear records.
| Identifier | ExFiles\Box 151\3\ scan0383 | |
| Date | 18th March 1940 | |
| Rm {William Robotham - Chief Engineer} /CTS. {C. Trot Salt - Carburation} 1290 Rm. {William Robotham - Chief Engineer} 11/ML.18.3.40. Will you please carry out a test in the cold chamber on the rig unit, motoring this over on the starter motor at 0 deg. C. 1. When S.A.E. 20 oil is utilised. 2. " " 50 " " in each case recording the time for the oil to reach the top position on the cylinder bore. The test will, of course, be run with the cylinder head removed. Will you also go over the service records of cylinder bore wear and get several examples showing the maximum variations in wear between different cylinders of the same engine. Rm. {William Robotham - Chief Engineer} | ||