List of weights in pounds and ounces for various units of a Hispano Suiza engine.
| Identifier | ExFiles\Box 22\1\ Scan156 | |
| Date | 8th April 1924 | |
| To R. {Sir Henry Royce} from Hs. {Lord Ernest Hives - Chair} c. to CJ. RG. {Mr Rowledge} c. to E. {Mr Elliott - Chief Engineer} DA. {Bernard Day - Chassis Design} c. to EY. Wor. {Arthur Wormald - General Works Manager} 4214 Hs {Lord Ernest Hives - Chair} 1/LG8.4.24. HISPANO SUIZA WEIGHTS. X.4214. We give below list of weights of various units on Hispano engine. SECTION. | DETAIL WEIGHTS. lbs. ozs. --- | --- | --- CRANKCASE. | | Top-half with studs etc.etc. | 98 | 12 Lower-half. | 57 | 14 Crankcase bearings. | 7 | 0 Total weight -- | 163 | 10 CRANKSHAFT. | | Crankshaft and Flywheel. | 148 | 0 Clutch. | 46 | 2 Clutch plate. | 6 | 7 Extension Piece (Camshaft and Oil Pump Drives.) | 2 | 14 Total weight -- | 205 | 7 CAMSHAFT. | | Camshaft. | 6 | 9 Camshaft bearings, | 7 | 9 Camshaft bevel Wheel. | | 12 Camshaft Drive. | 1 | 7 Total weight -- | 16 | 5 CYLINDERS. | | Cylinder complete with water covers. | 118 | 2 Valve springs (24) | 2 | 12 Inlet valves, caps and lock rings. | 4 | 8 Exhaust valves, caps and lock rings. | 4 | 14 Cylinder cover. | 7 | 0 Total weight -- | 137 | 4 contd:- | ||
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).