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).
Carburation fault on a 25/30 model and confirming the size of the metering jet used to resolve it.
| Identifier | ExFiles\Box 101\2\ scan0088 | |
| Date | 31th August 1936 | |
| W/N - G.W.H. K500a Hs{Lord Ernest Hives - Chair}/CTS.{C. Trot Salt - Carburation}26/KW.31.8.36. Rm.{William Robotham - Chief Engineer} has handed me your memo. GWH.{George W. Hancock - Head Chateauroux}3/JAB.28.8.36, in which you say you have cured a carburation fault at 50 M.P.H. by increasing the metering jet to 73.5. The standard metering jet on the 25/30 is stamped .063. Can you please send us further details of the carburetter trouble, and confirm the size of jet you have fitted to cure it. Hs{Lord Ernest Hives - Chair}/C.T.Salt. | ||