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).
List of components and specifications for the 4.EAC.II Unit fitted in a 7.EX Chassis.
| Identifier | ExFiles\Box 72\2\ scan0154 | |
| Date | 25th September 1925 | |
| To GWH{George W. Hancock - Head Chateauroux} from RHC.{R. H. Coverley - Production Engineer} RHC{R. H. Coverley - Production Engineer}10/BE. 25.9.25. 4.EAC.II Unit - fitted in 7.EX Chassis. X.8000 -Crankcase & Brgs. Oil Gallery Cover in C'case (similar to Goshawk Scheme 680). otherwise to L.O.P. E.71255. X.8010 -Crankshaft To L.O.P. E.70322. X.8020 - Spring Drive Dowelled Slipper Flywheel to LeC 2131 otherwise to L.O.P. E.71202. X.8030 - Connecting Rod. To L.O.P. E.72036. X.8040 - Pistons Pistons E.72728 ( 4-1 compression) otherwise to L.O.P. E.73500. X.8050 - Cylinder. To L.O.P. E.70903. X.8060 - Valves & Fittings. Improved Lubrication to Tappets to Scheme 634 otherwise to L.O.P. E.72113. X.8070 - Induction Pipe Smaller dia. Alum: Ind:Pipe & Bend (Water Heated) to LeC 2058 otherwise to L.O.P. E.72039. X.8080 - Carburetter. Alum Carb. to Arrgt Drg. E.72226. Carb. Throttle Spindle Location to LeC 2064. Stainless Steel Filter Stud .160 mesh Monel Filter to LeC 2127. -contd- | ||