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).
Issue of Stromberg carburetter flooding on gradients.
| Identifier | ExFiles\Box 20\9\ Scan050 | |
| Date | 13th December 1935 | |
| X1033 To Sg.{Arthur F. Sidgreaves - MD} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}6/KW.13.12.35. Re Stromberg Carburetters and Flooding. Replying to Sg.{Arthur F. Sidgreaves - MD}3/E.11.12.35. The position is that when the car is on an upward gradient - 1 in 10 or less - the carburetter floods. This is true as far as we know of every American car fitted with the downdraught Stromberg carburetter. The Buick, which is not fitted with the Stromberg carburetter, does not have this trouble. The Packard, which is fitted with the Stromberg, has a drain coupled up to the induction pipe which is fairly effective. We had more or less completed our induction pipe tests before we discovered that the Stromberg flooded on gradients. It was just about this time that we got the Packard. We are of course more particular in our tests than any other English manufacturer, and the position is that the flooding had not been discovered by Daimlers, who use this carburetter, nor did the Stromberg representative in England seem to know much about it. There is little doubt that we can provide an effective drain, but it means that the induction pipe as fitted to your car will have to be materially altered, and some development will have to be carried out to make sure that in providing the drain we do not spoil the slow running and distribution. We are doing all we can, but the carburetter section is somewhat overloaded, having to deal with both Ph.III and 20/25 HP. at the same time. Incidentally, our Cadillac is not fitted with downdraught carburetters. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||