Datsun Sunny (B10, B20) 1.0 L

Datsun Sunny (B10, B20)The Datsun Sunny (B10) is a first generation of midsize rear-wheel-drive sedan car manufactured by Japanese automaker Nissan Motor Company. The Datsun Sunny has a four body styles: two-door sedan and coupe, three-door station wagon and four-door sedan. The B10 was producted from year 1966 to 1969. The Datsun Sunny Truck (B20) debuted in 1967 and was the light commercial truck variation of the B10 passenger models.

The B10, B20 models were equipped with 1.0 L Straight-four engine A10. Bore and stroke were 73.0 mm and 59.0 mm, respectively. Compression ratio rating was 8.5:1. The A10 on Datsun B10 produced from 55 HP (41 kW, 56 PS) of horsepower and 75.5 Nm (56 ft-lb) of torque at 4,000 rpm .

Engine Specifications

Datsun Sunny B10 Engine Specifications
Engine code A10
Layout Four stroke, Inline-4 (Straight-4)
Fuel type Gasoline (petrol)
Displacement 1.0L, 988 cc (60.3 cu in)
Cylinder block alloy Cast iron
Cylinder bore 73.0 mm (2.87 in)
Piston stroke 59.0 mm (2.32 in)
Compression ratio 8.5:1
Valve Arrangement: SOHC, chain drive
Valves: 8 (2 valves per cylinder)
Intake valve timing: Open: 12° B.T.D.C.
Close: 48° A.T.D.C.
Exhaust valve timing: Open: 50° B.T.D.C.
Close: 10° A.T.D.C.
Intake valve head diameter: 37.0 mm (1.457 in)
Exhaust valve head diameter: 30.0 mm (1.181 in)
Fuel system Carburetor
Power output 55 HP (41 kW, 56 PS)
Torque output 75.5 Nm (7.7 kgm, 56 ft-lb)
Firing order 1-3-4-2
Engine weight 91.5 kg (210.5 kg)

Top speed and fuel consumption

Top speed and Fuel consumption
Top speed 130 km/h / 81 mph
Fuel consumption (city)
Fuel consumption (highway)
Fuel consumption (combined 50/50)

Maintenance data

Valve clearance (Cold)
Intake valve 0.25 mm (0.0098 in)
Exhaust valve
Valve clearance (Hot)
Intake valve 0.35 mm (0.0138 in)
Exhaust valve
Compression pressure
Standard 12.7 kg/m2 (181 psi) / 350 rpm
Minimun 10.0 kg/m2 (142 psi) / 350 rpm
Oil system
Oil consumption , L/1000 km (qt. per miles) up to 0.5 (1 qt. per 1200 miles)
Recommended engine oil 5W-30, 5W-40, 10W-30, 10W-40
Engine oil capacity (Refill capacity) Max.level 3.2 l (3.4 qt.)
Min.level 2.2 l (2.4 qt.)
Oil change interval, km (miles) 5,000-10,000 (3,000-6,000)
Coling system
Coolant capacity 3.8 L (with heater 4.5 l)
Radiator size: 2.0 L
Engine size: 1.8 L
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