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).
Letter to Wellworthy Piston Rings Ltd. discussing engine bearing failures, specifically regarding Leyland engines.
Identifier | ExFiles\Box 115\4\ scan0073 | |
Date | 29th May 1940 | |
1020a Experimental Dept. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}2/JMc. 29th May, 1940. Wellworthy Piston Rings Ltd., Lymington, HANTS. ATTENTION OF MR. BLACKITH. Dear Sirs, Many thanks for your letter dated 21st May, reference FB/AS. We realized that the information contained in our last letter did not constitute any suggestions for overcoming Leylands bearing failure. We could only give you our considered opinion as to the basic cause of the failure. In assuming that the Leyland engine in question is similar to any other normal engine, there should be no unsolveable mystery regarding the cause of their trouble. Now, assuming the above to be correct so far, the problem then resolves itself into a replica of other cases, (e.g. Dennis Bros.) namely a straightforward engine development problem. We have long been conscious of the fact that in adopting A.C.9 bearings to any given engine, the measure of success is bound to be largely bound up with such fundamental principles in the engine as lubrication, filtration and crankshaft balance. Further to this, you will remember cases where we have together inspected chewed-up bearings from an engine, in which the designers admitted (reluctantly) that no other bearing material had run successfully. We are out to help all we can in these cases, and we appreciate the undesireable position in which you must find yourselves frequently placed, but engine development by remote control when the fundamentals of the engine are unknown, is a highly technical job. -cont'd- | ||