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).
Recommended mileage intervals for engine decarbonisation.
| Identifier | ExFiles\Box 150\1\ scan0285 | |
| Date | 15th February 1937 | |
| S/W {Sales / Derby Works} Rm. {William Robotham - Chief Engineer} 1282 C23/C15.2.37 Re P.III Decarbonisation. Rm {William Robotham - Chief Engineer} 3/R10.2.37 ------- Thanks for the information contained in your memo. The only thing we can do, of course, is to go by experience. In the meantime, however, I note that unless the car suffers from pinking it should not be necessary to decarbonise at less than 15,000, and 25-30,000 for the bottom half to be removed. As you say, these recommendations may be modified as the Depots get experience. C. | ||