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The Nissan A13 is a 1.3 l (1,288 cc, 78.6 cu-in) in-line over head valve four-cylinder 4-stroke gasoline engine from Nissan A-family. The engine was manufactured by Nissan Motor Company from 1974 through 1982. The A13 (1974) was tall-deck engine. It features lightweight cast iron block and an aluminum head and fully balanced five-bearings crankshaft and single overhead camshaft. Bore and stroke are 73.0 mm (2.87 in) and 77.0 mm (3.03 in), respectively. Compression ratio rating was 8.5:1. It producted 76 PS (56 KW; 75 HP) of maximum horsepower and 105 Nm (10.71 kg·m; 77.49 ft·lb) of torque. The A13 (1979–1982) was a short-deck engine. It had 70.0 mm (2.76 in) of cylinder bore and 76.0 mm (2.99 in) of piston stroke, and 1,270 cc of total displacement. The breakdown of the engine code is as follows: 

A – Engine Family



13 – 1.3 Liter Displacement



none – SOHC (Single overhead camshat)



S – Carburetor type

Engine Specifications: A13

Engine code

Four stroke, Inline-4 (Straight-4)

Layout

Gasoline (petrol)

Fuel type

–

Production

1.3 L, 1,288 cc (78.6 cu in)

Displacement Fuel system

Carburetor type

Power adder

None

Power output

76 PS (56 KW; 75 HP)

Torque output

105 Nm (10.71 kg·m; 77.49 ft·lb) 1-3-4-2

Firing order Dimensions (L x W x H):

–

Weight

–

Table 1:Engine Specifications Cylinder block (1974)

Cylinder block alloy

Cast iron

Compression ratio:

8.5:1

Cylinder bore:

70.0 mm (2.76 in))

Piston stroke:

76.0 mm (2.99 in) 2/1

Number of piston rings (compression / oil):

5

Number of main bearings: Cylinder inner diameter (standard):

73.000-73.050 mm (2.874-2.876 in)

Piston skirt diameter (standard):

72.967-73.017 mm (2.873-2.875 in)

Crankshaft journal diameter:

49.951 – 49.964 (1.9666 – 1.9671)

Crankpin diameter:

44.961 – 44.974 (1.7701 – 1.7706) Table 2 : Cylinder Block

Cylinder head:

SOHC, chain drive

Valve Arrangement

8 (2 valves per cylinder)

Valves Valve head diameter:

INTAKE

37.0 mm (1.457 in)

EXHAUST

30.0 mm (1.181 in)

Valve length:

INTAKE

102.35-102.65 mm (4.030-4.031 in)

EXHAUST

102.35-102.65 mm (4.030-4.031 in) 46.5 mm (1.831)

Valve spring free length: Camshaft lobe height:

INTAKE

36.20-36.25 mm (1.425-1.427 in)

EXHAUST

36.93-36.98 mm (1.454-1.456 in)

Table 3: Cylinder Head Valve clearance (Cold):

Intake valve 0.25 mm (0.0098 in)

Exhaust valve

Table 4:Valve Clearance(Cold)

Valve clearance (Hot):

Intake valve 0.35 mm (0.0138 in)

Exhaust valve

Table 5:Valve Clearance(Hot) Oil system:

Oil consumption , L/1000 km (qt. per miles)

up to 0.5 (1 qt. per 1200 miles) 5W-30, 5W-40, 10W-30, 10W-40 With oil filter 3.3 l (3.5 qt.)

Recommended engine oil Engine oil capacity (Refill capacity)

Without oil filter 2.8 l (3.0 qt.) 5,000-10,000 (3,000-6,000)

Oil change interval, km (miles) Table 6:Oil System

Ignition system: BPR5ES (NGK)

Ignition coil Table 7:Ignition System Vehicle application: Nissan Sunny (B310)

1974

Nissan Sunny/ Datsun (B210)

1980–1982 Table 8:Vehicle Application

Figure 1:1.3L SOHC Naturally Aspirated A13 engine

Figure 2:Datsun Sunny A13 Engine