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 codeA10
LayoutFour stroke, Inline-4 (Straight-4)
Fuel typeGasoline (petrol)
Displacement1.0L, 988 cc (60.3 cu in)
Cylinder block alloyCast iron
Cylinder bore73.0 mm (2.87 in)
Piston stroke59.0 mm (2.32 in)
Compression ratio8.5:1
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 systemCarburetor
Power output55 HP (41 kW, 56 PS)
Torque output75.5 Nm (7.7 kgm, 56 ft-lb)
Firing order1-3-4-2
Engine weight91.5 kg (210.5 kg)

Top speed and fuel consumption

Top speed and Fuel consumption
Top speed130 km/h / 81 mph
Fuel consumption (city)
Fuel consumption (highway)
Fuel consumption (combined 50/50)

Maintenance data

Valve clearance (Cold)
Intake valve0.25 mm (0.0098 in)
Exhaust valve
Valve clearance (Hot)
Intake valve0.35 mm (0.0138 in)
Exhaust valve
Compression pressure
Standard12.7 kg/m2 (181 psi) / 350 rpm
Minimun10.0 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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