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).
The diagnosis and procedure for piston trouble and knock.
| Identifier | ExFiles\Box 86\2\ scan0088 | |
| Date | 20th October 1933 | |
| x236 To C. from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. to Wor{Arthur Wormald - General Works Manager}: Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}16/KT. 20.10.33. With reference to C12/C18.10.33. The only signs of piston trouble wxx that will be apparent to the drivers is the piston knock which is there at all times. The ordinary slight tap before the car is warmed up is not alarming. If this trouble becomes apparent the correct procedure is to remove the pistons for examination which should certainly be done at the works in order that we can have all evidence at our disposal. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||