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).
Modification to improve lubrication on the B.60 and B.80 valve gear.
| Identifier | ExFiles\Box 158\5\ scan0006 | |
| Date | 23th January 1939 | |
| 1360 also 10HH To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} c. Da{Bernard Day - Chassis Design}/Jnr.{Charles L. Jenner} c. Da{Bernard Day - Chassis Design}/MGS. c. By/CS. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}1/MH.{M. Huckerby}23.1.39. VALVE GEAR LUBRICATION B.60 & B.80. We have had scanty lubrication both to the push rods and the valve tips on the above units. The position of the holes in the rocker shaft have been experimented with and are not entirely satisfactory. One arrangement which we find gives excellent lubrication is in conjunction with the existing single hole in the rocker shaft, to have an annulus round the shaft .125 wide and .020 deep, in line with the hole. This has been tried out on both the B.60 and B.80 test bed units and should be carried out on all B.60 and B.80 units, and the detail drawing modified accordingly. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||