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).
Increasing the width of cams for the valve gear.
| Identifier | WestWitteringFiles\T\2July1928-December1928\ Scan046 | |
| Date | 25th July 1928 | |
| ORIGINAL BY.{R.W. Bailey - Chief Engineer} (struck through) FROM E.{Mr Elliott - Chief Engineer} Copy to HS.{Lord Ernest Hives - Chair} E2/M25.7.28. EAC.10. VALVE GEAR. X 7060 Y7090 (Y7090 is struck through) Re. LeC. 2464., and in reply to your memo. BY/CGH{W Clough}7/K19728., we wish to make the cams .700 wide instead of .5. This transfers the bearing surface overlap to the cam, and increases the wearing face, and we believe also improves the lubrication. The question of grinding the end cam near the collar requires looking into, but we believe you will find it possible to accommodate the wider cam at this point. E.{Mr Elliott - Chief Engineer} | ||