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 from Associated Equipment Company regarding an investigation into the General Motors valve lash mechanism.
| Identifier | ExFiles\Box 17\6\ Scan264 | |
| Date | 30th June 1934 | |
| THE ASSOCIATED EQUIPMENT COMPANY LIMITED. PASSENGER & COMMERCIAL MOTOR VEHICLE MANUFACTURERS. REGISTERED AEC TRADE MARK BUILDERS OF LONDON'S BUSES. Telephones: SOUTHALL 2424 (17 LINES). Telegrams: "VANGASQOW", SOUTHALL. ACLO REGISTERED TRADE MARK IN GREAT BRITAIN AND GERMANY. Registered Offices & Works: SOUTHALL, MIDDLESEX. For route see back. Our Ref C.E./KLW. Your Ref Ha/Rm.{William Robotham - Chief Engineer}12/KW. Exptl. Dept. 30th June, 1934. (Saturday) W.A. Robotham, Esq., Experimental Department, Messrs. Rolls-Royce Limited, D E R B Y. Dear Sir, I beg to acknowledge yours of the 28th instant with reference to the GENERAL MOTORS VALVE LASH MECHANISM. We investigated this matter very fully some years ago and eventually had six engines fitted with this device operating in some London Transport vehicles. For your information I enclose you herewith our official report on this experiment, and should be glad if you would return this to us after perusal. I also enclose herewith some Assembly drawings. In our experiments the plunger assembly was obtained complete from General Motors. This assisted us in the experiment. I understand from General Motors that this device is giving them complete satisfaction and has been standard on a number of their designs for some years. The difficulty we had with the extra wear on the cam follower due to the continuous loading on it would, of course, be overcome with a push rod type of engine having a roller follower. I think we might have (contd.) 8926-C/34 CUSTOMERS' VEHICLES ARE BROUGHT ON TO OUR PREMISES, -1- DRIVEN BY OUR STAFF, AND STORED FOR REPAIRS AT CUSTOMERS' OWN RISK AGAINST DAMAGE HOWSOEVER CAUSED. | ||