The 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 code | Z16 (Z16S) |
| Layout | Four stroke, Inline-4 (Straight-4) |
| Fuel type | Gasoline |
| Production | 1978- |
| Displacement | 1.6 L, 1,595 cm3 (97.33 cu in) |
| Fuel system | Carburetor |
| Power adder | None |
| Max. horsepower | 95 PS (70 kW, 94 HP) at 6,000 rpm |
| Max. torque | 132 Nm (13.5 kg·m, 97.3 ft-lb) at 3,600 rpm |
| Firing order | 1-3-4-2 |
| 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 alloy | Cast 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: | Top | 0.040-0.073 mm (0.0016-0.0029 in) |
| Second | 0.030-0.063 mm (0.0012-0.0025 in) | |
| Oil | – | |
| Piston ring end gap: | Top | 0.25-0.40 mm (0.0098-0.0157 in) |
| Second | 0.15-0.30 mm (0.0059-0.0118 in) | |
| Oil | 0.30-0.90 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: | INTAKE | 38.0-38.2 mm (1.496-1.4504 in) |
| EXHAUST | 38.0-38.2 mm (1.496-1.4504 in) | |
| Valve length: | INTAKE | 122.8-123.1 mm (4.835-4.846 in) |
| EXHAUST | 123.6-123.9 mm (4.866-4.878 in) | |
| Valve stem diameter: | INTAKE | 7.965-7.980 mm (0.3136-0.3142 in) |
| EXHAUST | 7.945-7.960 mm (0.3128-0.3134 in) | Cam height: | INTAKE/EXHAUST | 37.481-37.891 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 valve | 0.30 mm (0.012 in) |
| Exhaust valve | 0.30 mm (0.012 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 |
| 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 gap | 0.8-0.9 mm (0.03 -0.035 in) |
Vehicle applications
| Model | Years 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 | – |
Author:
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