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 sludging of tappet mechanism filters on a P.III, and modifications to the chassis to use different oils.
| Identifier | ExFiles\Box 144\1\ scan0269 | |
| Date | 14th December 1936 | |
| 1225 S/W Rm.{William Robotham - Chief Engineer} C8/C14.12.36 Sludging up of the Filters of the Tappet Mechanism on P.III. Rm{William Robotham - Chief Engineer}8/R11.12.36 ------- I am of the same opinion as you, namely that Mr.Brooker is far too eloquent in defence of the present stuff, and I am writing him suitably. In the meantime I note that you are trying out modifications to the chassis which will enable us to use various oils. C. | ||