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).
Fuel delivery systems and cold weather starting procedures for a 6-cylinder engine.
| Identifier | ExFiles\Box 31\3\ Scan011 | |
| Date | 8th December 1914 guessed | |
| Wor{Arthur Wormald - General Works Manager}/EH2/L6115. Sheet. 3 it will suck up raw petrol from the float chamber, the effect of this would be so marked that it would only be done by accident and would immediately be noticed. We could avoid this happening by having another non-return valve or making the tap on the induction pipe so that it would close itself by a spring. This point occurs with the Peerless arrangement. As the pressure tap and the tap on the induction pipe would always work together we could have these connected to the same lever. I find that it is better to deliver the spray into the induction pipe at two points, between No's 1 & 2 cylinder and 5 & 6 cylinder, we should leave the present tap as it is useful for other things. There is no doubt that spraying the petrol in the pipe is the best scheme for easy starting in cold weather, pouring raw petrol in is not nearly as good. It is not only R.R. cars, all cars suffer from being difficult to start in cold weather. | ||