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 graph showing valve lift characteristics against crankshaft degrees for Bentley Cam Toes.
| Identifier | ExFiles\Box 85\3\ scan0015 | |
| Date | 29th September 1939 guessed | |
| BENTLEY CAM TOES. UNIT B7. No 2 CYL. INLET CAM. CAMS MADE TO LIFT CURVE LEC 3292. DOTTED CURVE SHOWS TOES TO LEC 3291. VALVE LIFT - INCHES. CRANKSHAFT DEGREES. CLOSING TOE OPENING TOE MAX. CLEARANCE FOR QUIET OPENING. MAX. CLEARANCE FOR QUIET CLOSING. VELOCITY 0.000585 per degree 0.000579 per degree SHEET 4. | ||