List of new sections required to introduce the 'Japan' engine for the 20/25 HP chassis.
| Identifier | ExFiles\Box 5a\1\ 01-page116 | |
| Date | 20th April 1931 | |
| 85770 20th. April 1931. 20/25 HP. CHASSIS. ------------------ The following is a list of the new sections which would be required if we introduce Japan(Experimental Engine) engine :- 1/- Induction Pipes. 6 Port. P.2 Type. 2/- Exhaust Pipes. 3 Port. P.2. type. 3/- Wire Fittings. 4/- Carburetter. (Hs. {Lord Ernest Hives - Chair} may ask for twin choke.) 5/- Controls. 6/- Connecting Rod. .250 increase between centres. 7/- Piston. 8/- Fan. P.2. Type. 9/- Governor Drive. (Shortened to clear No.1 plug). 10/- Adjustable Idler Gear. 11/- Oil Fittings. X 12/- Low Inertia Spring Drive. X 13/- Water Connections. 14/- Water Pump. X 15/- Dynamo Drive. X Japan(Experimental Engine) engine was instructed originally for 3" bore, but Experimental Dept. bored out and tested 3.200 or 3.250 bore. We have in hand detail drawings adapting Japan(Experimental Engine) features in the cylinder head and block for 3.250 bore. We have detail drawings covering all the above with the exception of cylinder head and block as referred to | ||
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).