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).
Report discussing S.S. Chassis test results and comparisons, with added points on piston seizing, water temperature, and lubrication.
| Identifier | ExFiles\Box 65a\3\ scan0017 | |
| Date | 7th June 1929 | |
| to H.S. C. Llox C. Max X7770 EP{G. Eric Platford - Chief Quality Engineer}2/H7.6.29. re. S.S. CHASSIS. The attached is a copy of a rough report I made out as a basis of discussion in connection with the tests we made with the Sales Dept. at Elstree on the 31st.May. Having now had more experience with the S.S.Chassis, (which I have gained by trying 23-EX, now in the Production Test Dept). I am more than ever satisfied that, taking it all round, the S.S. Chassis is better than the present Phantom, and that 19-EX, from an engine roughness point of view, seems to be the exception, and Hs.{Lord Ernest Hives - Chair} is now investigating this point. It is important, however, for it to be established as to why this chassis is worse in this respect, so that we shall be able to deal with chassis which may turn out similar on test. I feel from the experience we have so far had with S.S.Chassis that we should have less trouble in launching same than we have had with previous new models. The comments raised on the list attached,(except for engine roughness) still hold good, and I submit these complaints could, if considered necessary, have attention concurrently with production. The following further points should be added to the list:- 3.a. Piston seizing trouble. I still feel we shall experience the same trouble on the S.S.car in this respect as we have experienced during the past winter with the Phantom Chassis, and I still press for some extra oil scheme for starting up to be embodied, or some device arranged on this chassis which will prevent the trouble caused by over-priming, or running the engine before the oil has properly lubricated the pistons. It would also overcome our piston knocks when cold . 8.a. The means of maintaining correct temperature of water on this engine seems more important and the present hand control for this purpose is not considered sufficiently reliable for constant maintaining [strikethrough]constant[/strikethrough] temperature. 13.a. One Shot Lubrication. It appears essential that some routine of test and inspection is arranged to make sure that the various chassis points are being thoroughly lubricated without wastage of oil, while chassis are going through their production test. Contd:- | ||