Letter from Zenith Carburetter Co. about carburetter needle seating and pump pressure.
| Identifier | ExFiles\Box 122\3\ scan0140 | |
| Date | 18th July 1939 | |
| THE ZENITH CARBURETTER CO. Limited. Sheet No...2......... Messrs. Rolls-Royce Ltd. Derby, 18.7.39. ...the needles will give a tight cut-off when required and we respectfully beg to suggest that you should endeavour to have the pump pressure raised in order that the desired flow may be obtained with a smaller seating than .140". We would suggest .113" diameter as a maximum. We note your request that we should send you 6 sets of parts to put into the carburetters already in your possession, but before doing so we should be glad if you would kindly reconsider this question of pump pressure and do all you possibly can to have it increased. Yours faithfully, THE ZENITH CARBURETTER CO.LTD. A.E. Palmer AEP/GD. | ||
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).