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).
Instructions for fitting Cadillac type automatic tappets to SG's car 104-MY.
| Identifier | ExFiles\Box 18\4\ Scan131 | |
| Date | 3rd August 1934 | |
| X7960 RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Std. Hs{Lord Ernest Hives - Chair}/Std.7/MA.3.8.34. CADILLAC TAPPETS FOR SG{Arthur F. Sidgreaves - MD}'S CARS. SG{Arthur F. Sidgreaves - MD}'s car 104-MY will be in the works from August 20th for a few days and we wish to fit Cadillac type automatic tappets to this car. Will you please have the following done. (1) Construct a set of valve springs to E.85666. (2) Fit these springs to the automatic tappet cylinder head which we will hand to you. (3) Fit this cylinder head and the automatic tappet gear for same (all of which we will supply) to Sg{Arthur F. Sidgreaves - MD}'s car as soon as we get it in the shop - this will necessitate shortening the cylinder studs. (4) Drill a .062" diameter holes through the centre of the main pressure relief valve to provide a bypass for rocker oil at low speeds. Hs{Lord Ernest Hives - Chair}/Std. | ||