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 showing the opening and closing contour of valve lift for Cadillac type tappets on a Phantom II camshaft.
| Identifier | ExFiles\Box 17\6\ Scan245 | |
| Date | 14th June 1934 | |
| CURVE ATTACHED TO REPORT OF CADILLAC TYPE TAPPETS FOR PH. II HS.{Lord Ernest Hives - Chair}1428. OPENING AND CLOSING CONTOUR OF VALVE LIFT PHANTOM II E82448 CAMSHAFT Nº6 EXHAUST VALVE HELD OFF SEAT AT 2800 R.P.M, Nº5 EXHAUST VALVE OK UP TO 3100 R.P.M. Nº6 Nº5 VALVE LIFT CLOSING CURVE .060 .050 .040 .030 .020 .010 .000 VALVE LIFT OPENING CURVES CRANK-ANGLE 70º 60º 50º 40º 30º 20º 10º 0º 10º 20º 30º 40º 50º 60º 70º | ||