Austin London Taxicab

The Austin London Taxicab used a modified Austin Heavy Twelve-Four chassis clothed with new bodies designed by London's largest taxicab retailer and dealer Mann & Overton, and made for them by London coachbuilders.

Austin Twelve engine
4
Austin 12/4 taxicab
Overview
ManufacturerAustin
Layout
ConfigurationStraight 4-cylinder
Displacement1,861 cc (114 cu in)
Cylinder bore72 mm (2.8 in)
Piston stroke114.5 mm (4.51 in)
Cylinder block materialCast iron, alloy crankcase. The inlet manifold is cast in one with the cylinder head
Cylinder head materialDetachable, pistons are aluminium
ValvetrainSide-by-side valves, tappet covers may be easily removed, timing is driven by chain
Combustion
Fuel systemSingle carburettor supplied by a vacuum tank which draws from a reservoir beneath the driver's seat, ignition by magneto driven by chain placed behind the timing, dynamo driven by same chain
Fuel typePetrol
Oil systemLubrication by forced feed, filler on the offside
Cooling systemRadiator, fan, cooling water is circulated by a pump forward of the timing on the nearside
Output
Power output27 bhp (20 kW; 27 PS) @2,000 rpm
Tax horsepower 12.8
Chronology
SuccessorAustin Twelve
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