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 sheet for engine components including pistons, cylinder head, valves, and carburettor.
| Identifier | ExFiles\Box 118\1\ scan0380 | |
| Date | 17th January 1941 | |
| SPECIFICATION SPECIFICATION No PL. 3004 ISSUE No 1 SHEET No 3. SEC. No | TITLE. | DESCRIPTION. | DESIGN No | DETAILS | L.O.P. | REMARKS. 5040 | PISTON | TO SUIT 3.25 BORE. RR SPLIT SKIRT - FLUSH TOP TYPE. COMP. RATIO 6.5:1. LIGHT PRODUCTION (AEROLITE) RINGS - TIN PLATED | RE. 785. | | | BASICALLY TO LOP RE. 808. EW 2172 COMPRESSION RING NEW DETAILS EW 2173 PISTON RING - L SECTION REQD TO EE. 3449 PISTON RING - SLOTTED SUIT TIN PLATING 5050 | CYLINDER HEAD. | ALUM HIGH POWER HEAD - 6.5:1 COMP. RATIO. OVERHEAD INLET VALVES. INLET VALVE SEATS 3 13/16 (AS EE. 4001 EXCEPT MATERIAL). ROCKER COVER AND OIL FILLER. 3.25 DIA BORE CYLINDERS. | PL. 33. | PD. 480. PL. 83. PL. 2869 | | BASICALLY TO LOP RE. 896. TO BE DETAILED 5060 | VALVES AND FITTINGS. | BGO INLET AND EXHAUST TAPPETS. SOLID EXHAUST VALVES. EXHAUST VALVE SPRING. MOTOR COMPONENTS INLET VALVE - DOUBLE SPRINGS (PH III TYPE). 4% CARBON STEEL PUSH ROD. GROMMETS TO BE FITTED. | RX. 33420 | EB 5210 EB 3256 EB 3853 | RE 357 | 5070 | INLET PIPES. | TO SUIT 4 CYL. HEAD AND HORIZONTAL SU CARBURETTER, WITH HOT SPOT. | | | | DESIGN REQUIRED. (MOCK UP PIPE RE. 2050). 5080 | CARBURETTER. | HORIZONTAL S.U CARBURETTER | | | | DESIGN REQUIRED. R.R. 888 (2M) 39739-17-1-41-N & G LTD. | ||