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).
Phantom III vehicle's sticking exhaust valve, examination of cylinder heads, and valve clearance loss.
| Identifier | ExFiles\Box 92\3\ scan0142 | |
| Date | 1st March 1937 | |
| Fawkes AEM 300A. HOTEL DE FRANCE. CHATEAUROUX. Indre. France. IMW.{Ivan M. Waller - Head of Chateauroux} Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}/3/JAB. 1st March 1937. BERKELEY To. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} a Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} 35-EX. PHANTOM III. Running was terminated by the sticking open of A.6 Exhaust valve. Both cylinder heads have been removed and all valves examined. The condition of the exhaust valves is such that in view of the experimental nature of the cylinder heads, we think it advisable not to refit them, but let you have them for examination. We have therefore, telegraphed for new exhaust valves, on receipt of which we will send you the old ones. Their mileage in France is 8.662. Loss of clearance recorded is :- A.3 .012" A.7 .006" A.II .005" No loss of clearance has been noted on any of the other valves. ------------ Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}/IMW.{Ivan M. Waller - Head of Chateauroux} Ivan Waller. | ||