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).
New scheme to prevent over-oiling during slow running by fitting improved Asbestos washers.
| Identifier | ExFiles\Box 16\1\ Scan116 | |
| Date | 30th August 1930 | |
| COPY. Hd.{Mr Hayward/Mr Huddy} From Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} For Depot Sheet. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}2/MJ.30.8.30. X.5060. X.7060. X.740. OVER-OILING WHEN SLOW RUNNING. -------------------------------- It is common knowledge that if the valve guide washers are not a good fit, over-oiling will take place when idling. The felt washers at present fitted as standard perish and have to be replaced at frequent intervals. A new scheme has been evolved for both the 20 HP. and the 40/50 whereby the angle of the cone on the guide has been increased and Asbestos washers fitted (Piece No's 40/50. E.80301., 20 HP. E.56050). This is a big improvement. Unfortunately it is not possible to fit the Asbestos washers with the existing guides. We recommend that whenever it is found necessary to change valve guides that the new type should be fitted that will take the Asbestos washers. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||