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 detailing various engine components, their design numbers, and related remarks.
| Identifier | ExFiles\Box 118\1\ scan0017 | |
| Date | 5th January 1940 guessed | |
| SPECIFICATION SPECIFICATION N° ISSUE N° 2 SHEET N° 1 SEC. N° | TITLE | DESCRIPTION | DESIGN N° | DETAILS | L.O.P. | REMARKS --- | --- | --- | --- | --- | --- | --- 5000 | CRANKCASE & BEARINGS. | VANDERVELL MAIN & CAMSHAFT BEARINGS MAIN BEARING HOUSINGS 2.9165 + 1/2 DIA. MODIFIED PETROL PUMP OPERATION TO FRONT ENGINE SUPPORT TO DISTRIBUTOR HOUSING TO MODIFIED DYNAMO MOUNTING TO STIFFENED TAPPET COVERS TO BREATHER ON CRANKCASE TO REV. COUNTER DRIVE | ECD.1257 ECD.434 DCD.1408 ECD.1461 PD.438 PL.69 | DETAILED DETAILED NOT DETD | RE.106 | CRANKCASE & CYLINDERS. AC MECHANICAL PETROL PUMP. 5010 | CRANKSHAFT | .4% CARBON STEEL CRANKSHAFT. 2.750 DIA. JOURNALS & VANDERVELL MAIN BEARINGS. NOSE END OF SHAFT TO SUIT WRAITH SPRING DRIVE. (6 WEIGHT) | EXS.1301 ECD.1227 | DETAILED RE.134 C'SHAFT | LOP RE 133 | CRANKSHAFT WITH INTEGRAL WEIGHTS TO BE INTRODUCED LATER 5020 | SPRING DRIVE | RR WRAITH TYPE SPRING DRIVE. SINGLE BELT, STEEL PULLEY EB 5014 | PD.439 | DETAILED | | EB 5014 SPRING DRIVE PLATE 5030 | CONNECTING RODS | BT{Capt. J. S. Burt - Engineer} TYPE ROD BUT UNMACHINED. VANDERVELL SMALL END BEARING VANDERVELL BIG END BEARING | | NOT DETAILED | | RODS IN EXISTANCE 5040 | PISTON | RR SPLIT SKIRT | | NOT DETAILED | | PISTON SIMILAR TO EW 2170 BUT WITH RAISED CROWN 5050 | CYLINDER HEAD | E 61477 NEW CYLINDER HEAD TO INLET VALVE SEATS IN 3 1/4% NICKEL EB 5196 OIL FILLER IN ROCKER COVER. | PD.458 PD.430 | DETAILED | | THERMOSTAT WILL BE REQUIRED. (FIXED SHUTTERS) EB 4129 OUTLET CONNECTION. 5060 | VALVES & FITTINGS | SOLID STEM EXHAUST VALVES. MOTOR COMP. INLET VALVES. 4% CARBON PUSH ROD. DOUBLE SPRINGS ON INLET. ALUM. SEAL WASHERS. NO GRUMMET. | EB 3853 EB 5107/8 EW 2260 | DETAILED | | SIMILAR TO LOP EB 4112 FOR 35-G-VII EXCEPT N° OFF IS REQD FOR 6 CYLR NOT 8 CYLR. 4% C PUSH ROD DECRD IN LENGTH TO SUIT NEW HEIGHT OF HEAD. 5070 | INLET PIPES | TO SUIT STROMBERG DUPLEX DOWNDRAUGHT CARBURETTER | ECD.1509 | DETAILED | RE 154 | 5080 | CARBURETTER | STROMBERG DUPLEX DOWNDRAUGHT CARB ELECTRICALLY OPERATED CHOKE | ECD.1523 ECD.1509 | | | SUPPLIED BY Rm{William Robotham - Chief Engineer}/CTS{C. Trot Salt - Carburation} 5082 | CARBURETTER AIR SILr | AC AIR CLEANER | | | | SUPPLIED BY Rm{William Robotham - Chief Engineer}/WHY 5090 | CAMSHAFT & BEARINGS | S/ZN CAMSHAFT EX 33974 THRUST FACE TO | PL 7 | NOT DETAILED | | TO SUIT IMPROVED IDLING. ANGLE BETWEEN CAMS SIMILAR TO EB 5143 (8 CYLINDER) GEAR TO BE ADDED FOR REV COUNTER DRIVE | ||