Nissan Z16S

Nissan Z16SThe Nissan Z16 or Z16S is a carbureted 1.6 liter (1,595 cc, 97.33 cu in) straight-four, four-stroke cycle gasoline from Nissan Z-family. The Z16 engine was producted from 1978.

The Nissan Z16S engine features a cast-iron block and aluminum alloy cylinder head with SOHC design and two valves per cylinder (8 valves in total). The engine has two ignition plugs per cylinder, but for some commercial vehicles, a single-spark plug head was used.

It has an 83.0 mm (3.27 in) cylinder bore and 73.7 mm (2.87 in) piston stroke with a compression ratio of 8.8:1. It produced 95 PS (70 kW, 94 HP) at 6,000 rpm of horsepower and 132 Nm (13.5 kg·m, 97.3 ft-lb) at 3,600 rpm of torque.

The breakdown of the engine code is as follows:

  • Z – Engine Family
  • 16 – 1.6 Liter Displacement
  • S – carburetor

General information

Engine Specifications
Engine codeZ16 (Z16S)
LayoutFour stroke, Inline-4 (Straight-4)
Fuel typeGasoline
Production1978-
Displacement1.6 L, 1,595 cm3 (97.33 cu in)
Fuel systemCarburetor
Power adderNone
Max. horsepower95 PS (70 kW, 94 HP) at 6,000 rpm
Max. torque132 Nm (13.5 kg·m, 97.3 ft-lb) at 3,600 rpm
Firing order1-3-4-2
Dimensions (L x H x W):
Weight

Cylinder block

The Z16S engine has a cast-iron cylinder block, bore is 83.0 mm (3.27 in) and stroke is 73.7 mm (2.87 in). The cylinder block, a monoblock specially cast structure with replaceable liners, employs the five bearing support system. The pistons are each fitted with two compression rings and a single oil ring. The cylinder block height is 307.85 mm (12.12 in).

Cylinder block
Cylinder block alloyCast iron
Compression ratio:8.8:1
Cylinder bore:83.0 mm (3.27 in)
Piston stroke:73.7 mm (2.87 in)
Number of piston rings (compression / oil):2 / 1
Number of main bearings:5
Cylinder inner diameter (standard):83.000-85.010 mm (3.2677-3.2681 in)
Piston skirt diameter (standard):82.965-82.975 mm (3.2663-3.2667 in)
Piston pin outer diameter:20.993-20.998 mm (0.8265-0.8267 in)
Piston ring side clearance:Top0.040-0.073 mm (0.0016-0.0029 in)
Second0.030-0.063 mm (0.0012-0.0025 in)
Oil
Piston ring end gap:Top0.25-0.40 mm (0.0098-0.0157 in)
Second0.15-0.30 mm (0.0059-0.0118 in)
Oil0.30-0.90 mm (0.012-0.035 in)
Crankshaft journal diameter:54.942-54.955 mm (2.1631-2.1336 in)
Crankpin diameter:49.961-49.974 mm (1.9670-1.9675 in)
Connecting rod center distance:136.57-136.63 mm (5.3767-5.3791 in)

Cylinder head

The cylinder head is made of a light, strong aluminum alloy with good cooling efficiency. Intake valves are 38.0 mm in diameter and the exhaust valves are 38.0 mm.

Cylinder head
Valve Arrangement:SOHC, chain drive
Valves:8 (2 valves per cylinder)
Intake/Exhaust duration:240°/240°
Valve head diameter:INTAKE38.0-38.2 mm (1.496-1.4504 in)
EXHAUST38.0-38.2 mm (1.496-1.4504 in)
Valve length:INTAKE122.8-123.1 mm (4.835-4.846 in)
EXHAUST123.6-123.9 mm (4.866-4.878 in)
Valve stem diameter:INTAKE7.965-7.980 mm (0.3136-0.3142 in)
EXHAUST7.945-7.960 mm (0.3128-0.3134 in)
Cam height:INTAKE/EXHAUST37.481-37.891 mm (1.4756-1.4917 in)
Outer camshaft journal diameter:32.935-32.955 mm (1.2967-1.2974 in)

Maintenance data

Valve clearance (HOT)
Intake valve0.30 mm (0.012 in)
Exhaust valve0.30 mm (0.012 in)
Compression pressure
Standard12.0 kg/cm2 (11.77 bar, 171 psi) / 350 rpm
Minimun9.0 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 APISE
Oil change interval, km (miles)5,000-10,000 (3,000-6,000)
Ignition system
Spark plug Cold: BP7ES, BPR7ES
Standard: BP6ES, BPR6ES
Hot: BP5ES, BPR5ES
Spark plug gap0.8-0.9 mm (0.03 -0.035 in)

Vehicle applications

ModelYears Produced
Datsun Truck PL720
Nissan Navara D21
Nissan Bluebird J810
Nissan Bluebird J910
Nissan Atlas FB22
Nissan Skyline BC211
Nissan Violet/Auster/Nissan Stanza PA10/PA11
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