The Nissan J16 is a carbureted 1.6 liter (1,567 cc, 95.6 cu.in.) 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): | – |
| Weight | – |
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) | |
| Oil | – | |
| 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 5W-40 10W-30 10W-40 |
| 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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