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).
Drawings for valve lift curves with lower lift, detailing new dimensions for cam and valve lift.
| Identifier | ExFiles\Box 72\1\ scan0225 | |
| Date | 6th June 1924 | |
| To BY.{R.W. Bailey - Chief Engineer} from E.{Mr Elliott - Chief Engineer} c. to CJ. HS.{Lord Ernest Hives - Chair} X9090 S E C R E T. E1/M6.6.24. E+ A.{Mr Adams} C. VALVE LIFT CURVES WITH LOWER LIFT. X. 9090 X. 9060 We send you herewith drawings Nos.LeC.1880. 1881 and 1882 dealing with the above. The first named deals with the geometry of the rocker, and shews that a cam lift of .325 will give us a valve lift of .423. These are the dimensions we wish to work to using the existing valves, rockers, and springs. Would you kindly instruct the necessary formers to be prepared for these cam curves. E.{Mr Elliott - Chief Engineer} | ||