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).
Draining, cleaning, and puncture risks of Autovac petrol tanks.
| Identifier | ExFiles\Box 40\4\ Scan087 | |
| Date | 22th May 1925 guessed | |
| contd :- -2- we think it is unnecessary to provide for that occurrance. If it ever did happen, it is only a matter of a few minutes to remove the screws holding the autovac fitting - the fitting can then be removed as a unit and the tank easily filled up with petrol from a can. As regards draining the tank. The tank at present can be drained by disconnecting the petrol pipe. We have never found it necessary to clean out an autovac tank. If the filter in the rear tank is working properly, we cannot see any reason why this should be necessary. We agree that an autovac tank does collect a very fine dirt, so fine that it can get through the filter, but it does not cause any harm. We are definitely against adding more petrol joints to the system than is absolutely necessary. Hs.{Lord Ernest Hives - Chair} Our experience with punctured tanks on 4-wheel brake cars is that we have had two cases where the tank has been damaged near the top, not at the bottom. It is the dumb iron on the rear car which usually punctures the tank. Hs.{Lord Ernest Hives - Chair} | ||