Blueprint for rockers without rollers and its impact on cam and valve lift.
| Identifier | ExFiles\Box 43\3\ Scan150 | |
| Date | 23th March 1927 | |
| E. {Mr Elliott - Chief Engineer} c. to Rs. {Sir Henry Royce's Secretary} c. to Hs. {Lord Ernest Hives - Chair} X4003 BY {R.W. Bailey - Chief Engineer} /Cgh {W Clough} 8/G.23.3.27. R.R. F.10. - ROCKERS WITHOUT ROLLERS. With further reference to E5/M7.3.27. we send you herewith blueprint of Sch. 904 showing layout of rockers without rollers with the position of the cam follower pads altered, so that they operate as near as possible on the same radial line from the camshaft centre to enable us to use interchangeable camshafts. If we retain the present cam lift of .312 the valve lift will be increased from .462 to .465, and we would like to know if you consider that we should produce new cams with a reduced lift in order to maintain the present valve lift. BY {R.W. Bailey - Chief Engineer} /Cgh. {W Clough} | ||
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).