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 Vauxhall Motors discussing engine components for Chevrolet, Oldsmobile, and Vauxhall vehicles.
| Identifier | ExFiles\Box 126\4\ scan0127 | |
| Date | 7th May 1936 | |
| X1056 Vauxhall Motors Ltd CONTRACTORS TO THE ADMIRALTY, WAR OFFICE & AIR MINISTRY. TELEPHONE NUMBER 2600 LUTON LUTON. BEDS. TELEGRAMS CARVAUX, TELEX, LUTON WHEN REPLYING PLEASE QUOTE -> OUR REF: YOUR REF: 7th May 1936. Mr.Robotham, Rolls Royce Ltd., DERBY. Dear Robotham, With reference to your letter on the 1937 Chevrolet Engine for your Chevrolet, the answer unfortunately must be "No". There is no way by which you may obtain next year's engine. I sent you data covering some of the points we discussed. The manifolds on the 36 Chevrolet are not what you should be interested in. The 1936 Olds exhaust heating mechanism is sufficiently like the 37 Chevrolet to serve any purpose you may have in mind. The Vauxhall 37 drawings on Intake and Exhaust are interchangeable with the 37 Chevrolet. I sent you a 37 Piston Ring in order that you may see what a good 3/32 Ring looks and feels like. I am anxious to get your reaction to the use of this type of ring in conjunction with more oil on the bore. If you care, you may write to George Davis, Sealed Power Ring Co. General Motors Building, Detroit, and have him make rings for you, or I shall be glad to do this for you. I have written to Mr.Zimalie of Barnes,Gibson & Raymond and have asked him to contact with you giving what data he can. No, Vauxhall do not shot blast their valve springs here. If done at all, it is done at the spring source. I shall look into this (Just found out not being done as yet). That blasting you must remember has been a means of increasing the life of springs, which springs would normally be short lived. I doubt very much if much improvement would be obtained if this operation were applied to springs which normally would have long life. To me, the most important development has been the two concentric springs, both wound with uneven spiral and with fairly close wound coils at the bottom. Mr.Zimalie can give you most of the information you desire. contd. | ||