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).
Design study for a modified valve rocker raised by .125 inches for a Phantom II engine.
| Identifier | ExFiles\Box 66a\2\ scan0046 | |
| Date | 14th April 1927 | |
| SCHEME 896 EXISTING ROCKER MODIFIED ON RUBBING FACE .015 SCALE FULL SIZE CAM LIFT ANGULAR MOVEMENT OF ROCKER IS NOT EQUAL EACH SIDE OF CAM CENTRE SHAFT BUT THE EFFECT ON MACHINING IS NOT BAD PATH OF CONTACT WITH VALVE .025 HIGH DUE TO HIGHER [...] IN SEATING .015 CLEARANCE VALVE ROCKER RAISED .125 PHAN II SCALE = 10/1 & Full ROLLS ROYCE LIMITED PRINT ROOM. 14 APR 1927 | ||