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).
Specification change document detailing the removal and fitting of cylinder head and rocker cover components.
| Identifier | ExFiles\Box 124\2\ scan0216 | |
| Date | 7th August 1940 guessed | |
| - 2 - Previous Specification. Cylinders. LOP.EB.4007. EB.3844 Cyl. Head. Capacity 112.5 cc's C/R 6:9:1 Complete with Valves & Springs. Removed. EB.3874 Rocker Cover, EB.3967 And Side Oil Filler with Breather Pipe. Removed. AND Revised Specification. EB.3844 Cyl. Head. Capacity 124 cc's C/R 6:4:1 Complete with Valves & Springs Ex. B.60 No.2. Fitted. PD.430 Rocker Cover Oil Filler EB.5051 Rocker Cover. EB.5064 Washer. EX.35866 Filler Cap. EB.5020 Breather Connection EB.5021 Breather Pipe. Ex. B.60 No.2. Fitted. HPS{Horace Percy Smith - Experimental Factory Mgr}/CP. | ||