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).
Instructions for setting the valve clearance on a Phantom engine with an aluminium head.
| Identifier | ExFiles\Box 66a\2\ scan0089 | |
| Date | 25th June 1928 | |
| X8060 To BY.{R.W. Bailey - Chief Engineer} from Hs.{Lord Ernest Hives - Chair} c. to Mx.{John H Maddocks - Chief Proving Officer} Hs{Lord Ernest Hives - Chair}/GWH{George W. Hancock - Head Chateauroux}1/LG25.6.28. VALVE CLEARANCE - PHANTOM. x615 With reference to the valve clearance with aluminium head. Please note these clearances should be .006", when the engine is cold. It is important that the clearance should not be set when engine. is hot. Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux} | ||