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).
Weight and parts list for the crankshaft and pistons section of an engine.
| Identifier | ExFiles\Box 132\2\ scan0128 | |
| Date | 2nd March 1941 guessed | |
| - 4 - Section 1. C.D. - CRANKSHAFT AND PISTONS ETC. Ref. No. No. off Weight Lbs. Ozs. Crankshaft. Setscrews - flywheel. Washers. Chain sproket - timing gears. Bearing - 1st motion shaft. Circlip - bearing. 1 1) 4) 4) 1) 1) 1) 33 4 CRANKSHAFT JOURNAL SIZES. Rear - 1.930" dia. Centre - 1.865" " Front - 1.8035" " Crankshaft crankpin size - 1.625" " Fan pulley. 2 1 1 14 1/2 Washer - crankshaft. Woodruff key - fan pulley. 3 1) 1) 1 1/2 Flywheel. 4 1 26 - Connecting rods complete with. Bearing cap. Bearings. Setscrews - little end. Washers - setscrews. Setscrews - big end. Lockplates. 5 4) 4) 4) 4) 4) 8) 4) 6 3 1/2 Weight of 1 complete rod 1 lb. 9 ozs. " " little end. 7 " " " " Big end. 1 " 2 " " Pistons. Gudgeon pins. Compression rings. Scraper rings. 6 4) 4) 8) 4) 2 14 1/2 Total section weight. 70 5 1/2 | ||