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).
Graph plotting valve lift against crankshaft degrees for Bentley cam toes on a B7 No.2 cylinder exhaust cam.
| Identifier | ExFiles\Box 85\3\ scan0016 | |
| Date | 29th September 1939 guessed | |
| BENTLEY CAM TOES UNIT B7 NO2 CYL. EXHAUST CAM CAMS MADE TO LIFT CURVE LEC 3292. DOTTED CURVE SHOWS TOES TO LEC 3292. VALVE LIFT - INCHES. CRANKSHAFT DEGREES. CLOSING TOE OPENING TOE MAX. CLEARANCE FOR QUIET CLOSING MAX. CLEARANCE FOR QUIET OPENING. VELOCITY 0.000758" per degree. 0.000568" per degree. SHEET 5 | ||