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 Buick asking for technical information on their Series 40 model.
| Identifier | ExFiles\Box 133\4\ scan0002 | |
| Date | 26th November 1935 | |
| COPY. HS{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} S/KW. 26th November, 1935. C. Chayne Esq., The Buick Motor Car Co., Flint, Michigan, U.S.A. Dear Mr. Chayne, We are just about to take delivery of our Series 40 Buick, and I wonder whether you could give me a little more information about some of the points raised in the specification - (1) Are you satisfied with the timing chain on this power unit ? Do you think it is as quiet as the gears you previously used ? What do you anticipate its life will be ? (2) On this car you have gone from an up-draught to a down-draught carburetter. Do you find it is as easy to get good slow running with a down-draught manifold as with an up-draught manifold ? (3) At what depression does the Marvel carburetter run at 3,200 r.p.m. full throttle ? (4) Is the streamlined combustion chamber and venturi type intake and exhaust ports a Sales expression, or does it really mean anything ? (5) Do you really get any advantage with regard to the pistons being off-set towards the camshaft 3/64" ? (6) Why do you copper-plate your exhaust valve stems ? Do you think that you will be forced into using stellited valves or inserted valve seats by the increasing quantity of TEL in the fuel ? How is it that you manage to get away without such inserts whereas Chryslers and others are using them? | ||