Nissan J16

Nissan J16 carbureted engineThe Nissan J16 is a carbureted 1.6 liter (1,567 cc, 95.6 straight-four, four-stroke cycle gasoline from Nissan J-family. The J16 engine was producted by Nissan Motor since 1972.

The Nissan J16 engine is a lengthened version of the J15. The Nissan J16 engine has a deep skirt, cast-iron cylinder block with cast-iron cylinders and cast iron head with bathtub type combustion chambers. It has an OHV type valve mechanism and 8 valves (2 per cylinder).

The J16 engine has a 78 mm (3.07 in) cylinder bore and 82 mm (3.23 in) piston stroke with a compression ratio of 8.3:1. The J16 produced 82 PS (60 kW; 80 HP) at 5,200 rpm of horsepower.

The breakdown of the engine code is as follows:

  • J – Engine Family
  • 16 – 1.6 Liter Displacement

General information

Engine Specifications
Engine code J16
Layout Four stroke, Inline-4 (Straight-4)
Fuel type Gasoline
Production 1972-
Displacement 1.6 L, 1,567 cc (95.6 cu in)
Fuel system Carburetor
Power adder None
Max. horsepower 82 PS (60 kW; 80 HP) at 5,200 rpm
Max. torque
Firing order 1-3-4-2
Dimensions (L x H x W):

Cylinder block

The crankshaft is a fully counterbalanced, three bearing type designed to turn out smooth, dependable power. Water is forced through the water jackets to deprive the cylinders of unwanted combustion heat. The crankshaft is of special steel forging with three main bearing journals. To provide balance, four counter-balance weights arc provided just opposite the cranks. The main bearing journals and connecting rod journals are cases hardened and finished to extreme smoothness for increased wear resistance.

The pistons are made of aluminum alloy casting. The piston pin is a full floating fit to the piston while it is press-fitted to the connecting rod small end. The connecting rod is a special steel forging. The pistons are each fitted with two compression rings and a single oil ring.

Cylinder block
Cylinder block alloy Cast iron
Compression ratio: 8.3:1
Cylinder bore: 78 mm (3.07 in)
Piston stroke: 82 mm (3.23 in)
Number of piston rings (compression / oil): 2 / 1
Number of main bearings: 3
Cylinder inner diameter (standard): 77.950-78.000 mm (3.0689-3.0709 in)
Piston pin outer diameter: 20.993-20.998 mm (0.8265-0.8267 in)
Piston pin hole diameter: 21.001-21.008 mm (0.8268-0.8271 in)
Piston diameter: 77.935-77.985 mm (3.0683-3.0763 in)
Piston ring side clearance: Top 0.036-0.076 mm (0.0014-0.0030 in)
Second 0.036-0.076 mm (0.0014-0.0030 in)
Piston ring end gap: Top 0.20-0.35 mm (0.079-0.138 in)
Second 0.20-0.29 mm (0.079-0.114 in)
Oil 0.30-0.90 mm (0.0118-0.0354 in)
Connecting rod center distance: 142.67 mm (5.617 in)
Crankshaft journal diameter: 50.813-50.825 mm (2.0005-2.0010 in)
Crankpin diameter: 47.640-47.652 mm (1.8756-1.8761 in)
Crankshaft center distance: 41.0 mm (1.646 in)

Cylinder head

The cylinder head is made of steel casting. It contains bathtub type combustion chambers. A special sintered alloy valve seat is installed on the exhaust valve. It is press-fitted.

The camshaft is of special steel casting and is supported by three main bearings. The cam lobes are case hardened and finished to extreme smoothness for increased wear resistance. The rocker shaft is made of carbon steel: it is also case hardened for increased durability. The valve train consists of the camshaft, push rod, valve rocker arm, and valve; motion is transmitted through these four parts in the order listed. The valve spring is of double spring type, inner and outer.

Cylinder head
Valve Arrangement: SOHV, chain drive
Valves: 8 (2 valves per cylinder)
Intake/Exhaust duration: 252°/252°
Valve head diameter: INTAKE 37.8-38.0 mm (1.488-1.496 in)
EXHAUST 31.9-32.1 mm (1.256-1.264 in)
Valve length: INTAKE 109.35-109.65 mm (4.3051-4.3169 in)
EXHAUST 109.35-109.65 mm (4.3051-4.3169 in)
Valve stem diameter: INTAKE 8.680-8.693 mm (0.3417-0.3422 in)
EXHAUST 8.680-8.693 mm (0.3417-0.3422 in)
Valve spring length
(Double spring type):
OUTER 52.0 mm (2.047 in)
INNER 50.0 mm (1.969 in)
Valve spring length
(Single spring type):
47.1 mm (1.854 in)
Camshaft journal diameter FRONT 45.434-45.447 mm (1.7887-1.7892 in)
CENTER 43.897-43.910 mm (1.7282-1.7287 in)
REAR 41.218-41.231 mm (1.6228-1.6233 in)
Camshaft lobe height: 37.605-37.650 mm (1.4805-1.4823 in)

Tightening torque specs

Tightening torque specs
Cylinder head stud nut 50-60 Nm; 5.0-6.0 kg·m; 36-43 ft·lb
Rocker shaft bracket bolt 20-30 Nm; 2.0-3.0 kg·m; 14-22 ft·lb
Connecting rod big end nut 28-35 Nm; 2.8-3.5 kg·m; 20-25 ft·lb
Flywheel fixing bolt 40-50 Nm; 4.0-5.0 kg·m; 29-36 ft·lb
Main bearings cap bolts 100-110 Nm; 11.0-11.0 kg·m; 72-80 ft·lb
Camshaft sprocket bolts 40-50 Nm; 4.0-5.0 kg·m; 29-36 ft·lb
Oil pan bolts 5-10 Nm; 0.5-1.0 kg·m; 3.6-7.2 ft·lb
Oil pump bolts 12-18 Nm; 1.2-1.8 kg·m; 3.6-7.2 ft·lb
Oil pan drain plug 20-30 Nm; 2.0-3.0 kg·m; 14.5-21.7 ft·lb
Carburetor nuts 8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Manifold nuts 17-23 Nm; 1.7-2.3 kg·m; 12-17 ft·lb
Fuel pump nuts 12-18 Nm; 1.2-1.8 kg·m; 8.7-13.0 ft·lb
Crank pulley bolt 12-14 Nm; 1.2-1.4 kg·m; 8.7-10.1 ft·lb
Water pump bolts 12-18 Nm; 1.2-1.8 kg·m; 8.7-13.0 ft·lb
Oil filter bolts 16-24 Nm; 1.6-2.4 kg·m; 12-17 ft·lb
Side cover bolts 4-8 Nm; 0.4-0.8 kg·m; 2.9-5.8 ft·lb

Maintenance data

Valve clearance (HOT)
Intake valve 0.35 mm (0.0138 in)
Exhaust valve 0.35 mm (0.0138 in)
Compression pressure
Standard 12.0 kg/cm2 (11.77 bar, 171 psi) / 350 rpm
Minimun 9.0 kg/cm2 (8.83 bar, 128 psi) / 250 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
Oil type API SE
Engine oil capacity (Refill capacity) With filter change 4.4 l
Without filter change 3.4 l
Oil change interval, km (miles) 5,000-10,000 (3,000-6,000)
Ignition system
Ignition timing (B.T.D.C./rpm) 6°/600 rpm
Spark plug NGK: B4ES
Spark plug gap 0.8-0.9 mm (0.03 -0.035 in)
Spark plug tightening torque 15-20 Nm; 1.5-2.0 kg·m; 11-14 ft·lb

Vehicle applications

Model Years Produced
Nissan/Datsun Homer, Cabstar T20 1972-1976
Yue Loong Violet 707
Nissan Urvan E23
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