1956 Ariel 4G Square Four Mark II

Ariel 4G Square Four Mark II 1956


1956 Ariel 4G Square Four Mark II specifications, pictures, reviews and rating

1956 Ariel 4G Square Four Mark II
1956 Ariel 4G Square Four Mark II. Picture credits - Motosolvang.com. Submit more pictures.
General information
Model Ariel 4G Square Four Mark II
Model year 1956
Category Allround
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Engine and transmission
Displacement 995.0 ccm (60.71 cubic inches)
Engine type Square four cylinder
Engine details Double twin cylinder arranged as a square.
Power output 45.0 HP (32.8 kW)) @ 5500 RPM
Top speed 160.0 km/h (99.4 mph)
Compression 6.0:1
Bore x stroke 65.0 x 78.0 mm (2.6 x 3.1 inches)
Valves per cylinder 2
Fuel system Carburettor. SU MC2 carburettor with air cleaner
Fuel control Overhead Valves (OHV)
Lubrication system Dry sump with dual oil pump.
Cooling system Air
Gearbox 4-speed
Transmission type Chain (final drive)
Chassis, suspension, brakes and wheels
Frame type Full cradle
Front suspension Oil damped telescopic fork
Rear suspension Plunger-link spring
Front tire 3.25-19
Rear tire 4.00-18
Front brakes Expanding brake (drum brake)
Diameter 178 mm (7.0 inches)
Rear brakes Expanding brake (drum brake)
Diameter 203 mm (8.0 inches)
Wheels Wire spoked. Dunlop tyres.
Physical measures and capacities
Dry weight 193.0 kg (425.5 pounds)
Power/weight ratio 0.2332 HP/kg
Overall length 2184 mm (86.0 inches)
Overall width 686 mm (27.0 inches)
Ground clearance 140 mm (5.5 inches)
Wheelbase 1422 mm (56.0 inches)
Fuel capacity 16.00 litres (4.23 US gallons)
Oil capacity 3.40 litres (3.59 US quarts)
Other specifications
Color options Red/chrome
Starter Kick
Light 7.5 inch, 30 Watt headlamp.
Comments Also called ´Squariel´. Designed by Edward Turner. Mark II has separate barrels, a re-designed cylinder head with four separate exhaust pipes from two cast-aluminium manifolds and a rocker-box combined with the inlet manifold.
Update specsReport missing specs or required updates.
Further information
MaintenanceFind parts, fluids. filters, maintenance tools and service manuals at Amazon.com.
Ask questionsJoin the 56 Ariel 4G Square Four Mark II discussion group or the general Ariel discussion group.
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