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).
Blueprint showing camshaft timing, dimensions, and cam lift data.
| Identifier | ExFiles\Box 85\3\ scan0004 | |
| Date | 3rd April 1933 | |
| Hs{Lord Ernest Hives - Chair} 971 CAM LIFT OPENING TABLE: DIV | CAM LIFT OPENING 0 (arrow to 37) | SEE E59272 38 | .32600 39 | .32600 40 | .32600 CAM LIFT CLOSING TABLE: DIV | CAM LIFT CLOSING 81 | 0 n | SEE 41 | Div n-3 72 | E59272 42 | .325538 41 | .32600 40 | .32600 Diagrams: - Top left cam profile diagram with dimensions: ¢, 40, 0, 81, .900 Dia ROLLER, .950 Dia - Bottom left timing diagram with angles: 5, 9, Ex, In, 63, 59, 117° GENERAL DIMENSIONS TO E 59139 INLET AND EXHAUST CAM AS ABOVE EXHAUST TO LEAD INLET CAM BY 117° TIMING .020 CLEARANCE CAMSHAFT J1 Stamp: ROLLS-ROYCE, LTD. PRINT ROOM APR 3 1933 DERBY. | ||