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).
The S.S. valve tappet guide location and set screw arrangement.
| Identifier | ExFiles\Box 17\6\ Scan093 | |
| Date | 14th February 1929 | |
| SECRET. E.{Mr Elliott - Chief Engineer} c. Hs.{Lord Ernest Hives - Chair} X7060 BY/Cgh{W Clough}4/G.14.2.29. S.S. VALVE TAPPET GUIDE LOCATION. -------------------------------- As requested in your E4/M12.2.29. we send you herewith print of Sch. 1133 showing what is considered to be a satisfactory arrangement of locating set screws for the tappet guides. It will be noted that the hole for the set screw is not tapped right through in order to provide a plain hole to act as a pilot for reaming the hole in the tappet guide. The crankcase is counterbored for the set screw in order to keep the latter clear of the starter motor Dynamo. Handwritten note: HS{Lord Ernest Hives - Chair} Sch 1133 is similar to what we are doing on all Engines. it should therefore be ok HAL BY/Cgh.{W Clough} | ||