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 specifications and modifications for the 6.EAG.II engine unit components.
| Identifier | ExFiles\Box 71\3\ scan0196 | |
| Date | 10th December 1925 | |
| RHC{R. H. Coverley - Production Engineer}4/BE. 10.12.25. 6.EAG.II -UNIT -Crankcase & Bearings Oil Gallery Cover similar to Goshawk to Scheme 880. Modified Main Bearing Oil Pipes(Brazed Steel nipples) to Scheme 656 - otherwise to L.O.P. E.71255. -Crankshaft To L.O.P. E.70322. -Spring Drive Dowelled Slipper Flywheel to LeC 2131 otherwise to L.O.P. E.71202. -Connecting Rod To L.O.P. E.72036. -Piston 4-1 Compression Standard Pistons - E.73376. -Cylinder To L.O.P. E.70903. -Valves & Fittings. 1. Improved Lubrication of Tappets to Scheme 634. 2. Improved Bottom Valve Spring Washers EX.941 with more effective spigot for spring. 3. Oil Holes on Valve End of Inlet Rockers plugged. 4. Asbestos & Graphite Washers fitted to Valve Stems. -Induction Pipes Smaller dia. Alum Ind:Pipe & Bend EX.451-2 (Water Heated) to LeC 2058. -Carburetter. Standard Carburetter to L.O.P. E.72226. 26.11.25. -Camshaft To L.O.P. E.70893. -Mag & Dy.{F R Danby}Drive To L.O.P. E.73297. | ||