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).
Potential cures for piston knocks, concluding that a new casting is the only satisfactory solution.
| Identifier | ExFiles\Box 48\1\ Scan185 | |
| Date | 10th September 1926 | |
| X4190 To Ps. from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}6/LG10.9.26. PISTON KNOCKS. With reference to our conversation re. piston knocks. We find that there is no cure which can be applied to existing cars other than those which are at present known, such as, peening out the piston. The increase in section of the cylinder barrel bases can only be satisfactorily carried out by means of a new casting. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||