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BMW 3/15 PS (DA 2 & DA 4)

Date of manufacture 1929 – 1932
Bodywork type(s) Saloon, Tourer, Sports 2-Seater, Cabriolet and Van
Engine Type Inline 4 cylinder
Capacity 748cc
Bore x stroke 56mm x 76mm
Power 15bhp @3000rpm
Compression 5.6:1
Carburettors 1, Solex 26 mm updraught
Valve design Side valve
Valve gear Camshaft drive with spur gear wheels
Electrics 6 volt
Transmission Clutch Dry single disc
Gearbox ratios
1st 3.25:1
2nd 1.82:1
3rd 1.00:1
Axle ratio 5.35
Synchromesh None
Chassis Frame “A” shaped frame with ‘U’ section side members, friction dampers
Suspension Front: Beam axle & 1 transverse leaf spring;(DA 4: leaf spring only), Friction dampers
Rear: Quarter outrigger leaf springs
Steering Worm
Brakes Four wheel     cable
Handbrake: cable to front wheels
Dimensions Wheelbase 1905mm
Track front/rear 1000mm/1030mm
Length/width 3000mm x 1275mm
Tyres 27 x 4in
General Fuel capacity 20 litres
Max speed 47 mph
Number produced 15798
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