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 required to increase the rear axle oil level for the Phantom III.
| Identifier | ExFiles\Box 92\5\ scan0042 | |
| Date | 6th February 1936 | |
| GRY{Shadwell Grylls} RY. c.c. Hs.{Lord Ernest Hives - Chair} Da.{Bernard Day - Chassis Design} RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/Hm.{Capt. W. Hallam - Head Repairs} E/HDY.{William Hardy}1/HP.6.2.36. Rear Axle Oil Level - Phantom III. Phantom III We send herewith N.Sch.4753 which shews the level plug raised the amount necessary to increase the oil capacity from 1 1/2 to 2 pints in accordance with E.6/HP. 29.1.36. Our calculation gives .3" as the necessary increase in plug height. We cannot calculate the exact height but the factors we have ignored will raise rather than lower the height required. We suggest that for casings already machined the facing be end milled to a different angle and a plug boss provided with an elongated flange. The thickness of the casing is reduced locally but is still ample. Undrilled casings have the existing boss raised .300" with a re-spacing of the rivet holes for the tube spigot ring. E/HDY.{William Hardy} N.Sch.4753 herewith. | ||