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 Mr. Hancock discussing issues with 'L' shaped rings, steering oil, and fabric coupling tests.
| Identifier | ExFiles\Box 71\4\ scan0167 | |
| Date | 27th April 1925 | |
| f8940 Expl: Dept: Messrs. Rolls-Royce Ltd., Derby Angleterre. HsD/LG27.4.25. Hotel de France, Chateauroux, Indre, France. Mr. Hancock from Hs.{Lord Ernest Hives - Chair} Many thanks for your reports. We are at a loss to understand the oil con- sumption with the 'L' shaped rings fitted. We have wired you today asking which way these were fitted because we have had cases of them being fitted the wrong way up. The stepped portion should always be the top of the piston. If there is any doubt at all, as regards which way they were fitted, we recommend that you take them down and examine them. We have now fitted up a number of cars with these pistons and have obtained consistently good results. We wired you also as regards the steering as we find that the steerings are freer if we use thick oil instead of thin engine oil. We are very interested to know how the fabric coupling goes on. On the joggling test, the fabric couplings which we have now xx tested, has lasted 4 times as long as the last couplings which were fitted to the car. contd :- | ||