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).
Diagnosing and rectifying engine trouble related to valves, tappets, and carburetter modifications.
| Identifier | ExFiles\Box 13\4\ 04-page189 | |
| Date | 1st December 1932 | |
| -2- let us know the trouble had been cured. I told him that we had fitted a new set of valves, valve guides, and rockers (we do not consider it advisable to inform him that we have fitted a mother cylinder head complete) and that we were carrying out further investigation at Derby to try and locate the actual trouble with his own valve gear. From my talks with both the owner and driver I gathered that generally speaking they were very satisfied with the car, but the continued tappet trouble had become rather annoying. Incidental to the tappet trouble, when I first tested the car I found the carburetter set far too strongly, and inclined to "spit back". On examining the carburetter I found that only half of our modifications for curing this trouble had been carried out, there being no bell on the low speed jet, and no venturi fitted in the low speed choke tube. We put this matter right, and at the same time are issuing a Depot sheet embodying all carburetter modifications. Me/G.H.Wyman. | ||