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).
Exhaust valve failure which resulted in a broken piston and scored cylinder.
| Identifier | ExFiles\Box 83\1\ scan0448 | |
| Date | 15th April 1937 | |
| N Hales Sivill 200a HOTEL DE FRANCE. CHATEAUROUX. Indre. France. Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}/IMW{Ivan M. Waller - Head of Chateauroux}/7/JAB. 15th April 1937. To. Rm.{William Robotham - Chief Engineer} o Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} 6. B. IV. EXHAUST VALVE FAILURE. Further to our telegram and Daily Report, the head came off No 7 KE.965 Exhaust valve during yesterday's running. It was fitted in place of the S/SLV valve that failed before, and has run 7,700 miles. It will be recalled that during this mileage No 7 valve spring broke. The head of the valve has gone. The piston is broken and the cylinder rather scored. We have dressed it up ready for fitting a new piston when received. The inlet valve is knocked about and needs replacing. No 4 Connecting rod and big end bearing in A.C.6.S. are in good condition. ---------- Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}/IMW.{Ivan M. Waller - Head of Chateauroux} Frank. Waller. | ||