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).
Oil performance, wear, and potential remedies for a 20HP 10,000-mile chassis.
| Identifier | ExFiles\Box 144\1\ scan0090 | |
| Date | 23th November 1923 | |
| X967 EP.{G. Eric Platford - Chief Quality Engineer} c. Hs.{Lord Ernest Hives - Chair} c. Wor.{Arthur Wormald - General Works Manager} c. SRT. 20HP. 10,000 MILE CHASSIS. Referring to EP{G. Eric Platford - Chief Quality Engineer}9/Hl21123, whilst on the face of it it would appear as if the oil must be the main cause of the trouble, we cannot at the moment, make any definite change. Hs{Lord Ernest Hives - Chair}, as you are aware, is running two or three grades of oil on different chassis, with the object of trying to prove a difference between Price's oil and other oils, but of course, until Hs{Lord Ernest Hives - Chair}, finds himself in the position to make definite recommendations, we cannot depart from our present standard. In considering Mr Hall's analysis, it is noteworthy that 23% of the deposit represented steel dust, as distinct from cast iron. This, to my mind, rather indicates that possibly the grinding on the Crankshafts was not quite as fine as it might have been, but in any case it certainly does shew that some method of polishing by tapeing the Crankpins and the Journal Bearings, (a proposal I have put forward on one or two occasions) would be a distinct advantage by clearing away the roughnessess which must be left after any grinding operation, which roughnessess, or slight tearing up of the surface necessarily result in wear and tear on the bearings. I cannot, at this stage, see my way to earmarking faults of this description as R.D.M. since enough evidence is not available to demonstrate whether Price's oil only has this peculiarity, or if other good brands of oil would, under extreme conditions, give similar results. BY.{R.W. Bailey - Chief Engineer} | ||