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).
Technical specifications for the Humber Super 'Snipe' 1939 model.
| Identifier | ExFiles\Box 126\2\ scan0129 | |
| Date | 18th November 1938 | |
| HUMBER SUPER "SNIPE". 1939. Further particulars may be obtained from:- "Autocar" Road Test. 18th November 1938. Weight Analysis Book. Library. Instruction Book. DISPOSITION OF ENGINE AUXILIARY UNITS. Offside. Nearside. Dynamo. Starter Motor. Water Pump. Inlet and Exhaust manifolds. Distributor. Oil Pump Inside Crankcase, Petrol Pump. Driven off Camshaft. Oil Filler. Ignition Coil. For timing Chain see SS.{S. Smith}220. 85M/M Bore x 120 M/M Stroke - Side Valve 6 Cyl. Capacity 4,086 c.c. Engine Firing Order. 1-5-3-6-2-4. Compression Ratio. 6.13-1. CRANKCASE AND CYLINDER BLOCK. C.I. Cylinder and Crankcase Integral. Water Jacket extends full depth of Cylinder. Water Passage between Cylinder Barrels Nos.2-3 and 4-5. Sump is in pressed Steel 19 SWG(.040) Thick. Valves are vertical in Crankcase - Combustion Chambers in Block slope upwards at 2½º (approx) from Cylinder Barrels. Engine Breather fits direct to offside of Crankcase. Crankshaft Damper and Fan Pulley one unit. SS.{S. Smith}219. FLYWHEEL. SS.{S. Smith}232/3 and SS.{S. Smith}250. No.of Teeth = 112 Fellows. Obliquity = 20º Dia. Pitch = 8/10. Pitch Dia. = 14.000. 11 Teeth on Starter Motor Pinion. 10" Borg and Beck Clutch. I W LBS/INS² LBS. Rim. 1150. 30.4 Disc. 356. 17.5 Clutch. 250. 16.3 Total. 1756. 64.2 | ||