The Nissan (Datsun) L16 engine features OHC valves, wedge-shaped combustion chamber, aluminum cylinder head, and fully balanced five-bearing crankshaft to produce smooth, reliable power. The cylinder block is cast as a single unit, with deep sockets. The engine is equipped with a 2-cylinder downdraft carburetor.
Also available was the L16 engine with SU twin carburettor. This engine, which was called the L16T, had flat top pistons, a slightly different head, higher compression ratio, higher power output and torque.
The L16 engine has a cylinder bore of 83.0 mm (3.27 inches) and a piston stroke of 73.7 mm (2.90 inches) with a compression ratio of 8.5: 1. It produced 97 PS (96 HP, 72 kW) at 6,000 rpm until 1971 and then 94 PS (92 HP, 69 kW) at 6,000 rpm.
The engine code breakdown is as follows:
- L – Engine family
- sixteen – 1.6 liter displacement
|Design||Four stroke, Inline-4 (Straight-4)|
|Displacement||1.6 liters, 1,595 cm3 (93.77 cubic inch)|
97 PS (96 HP, 72 kW) @ 6,000 rpm
129 Nm (13.2 kg ·m, 95 lb ·ft) at 3,600 rpm
|Order to open fire||1-3-4-2|
|Dimensions (L x H x W):||–|
The Nissan L16 engine has a cast iron cylinder block. The cylinder block, which has a special one-piece casting structure, adopts the five-bearing support system. The cylinder bores are surrounded by cooling jackets and machined directly into the block. The oil passages in the block are arranged so that the full flow oil filter is connected directly to the right side of the block. The cylinder bore of the Nissan L16 engine is 83 mm (3.27 inches) and the piston stroke is 73.7 mm (2.90 inches), the compression ratio is 8.5: 1.
The crankshaft is a special steel forging. Fully balanced, it delivers smooth, reliable power at high speed. The main bearings obtain lubrication from the pumped oil through the main oil gallery and the oil holes that run parallel with the cylinder holes.
The pistons are made of special cast aluminum with struts to control thermal expansion and have two compression rings and a combined oil ring. The piston pin is a special hollow steel shaft. Fully fits the piston and snaps into the connecting rods. The connecting rods are made of special forged steel.
|Cylinder Block Alloy||Molten iron|
|Compression ratio:||8.5: 1|
|Cylinder bore:||83 mm (3.27 inches)|
|Piston stroke:||73.7 mm (2.90 inches)|
|Number of piston rings (compression / oil):||2/1|
|Number of main bearings:||5|
|Cylinder bore (standard):||83,000 mm (3.2677 inches)|
|Piston Skirt Diameter (Standard):||82.985-83.035 mm (3.2671-3.2691 inches)|
|Piston Pin Outside Diameter:||20.995-21.000 mm (0.8266-0.8268 inch)|
|Piston ring side clearance:||Top||0.040-0.080 mm (0.0016-0.0031 inch)|
|Second||0.030-0.070 mm (0.0012-0.0028 inch)|
|Piston Ring End Gap:||Top||0.25-0.40 mm (0.0098-0.0157 inch)|
|Second||0.15-0.30mm (0.0059-0.0118 inch)|
|Petroleum||0.30-0.90 mm (0.012-0.035 inch)|
|Connecting rod center distance:||133.0 mm (5.24 inches)|
|Crankshaft journal diameter:||54.942-54.955 mm (2.1631-2.1336 inches)|
|Crankpin diameter:||49.961-49.974 mm (1.9670-1.9675 inches)|
|Crankshaft Center Distance:||36,850 mm (1,4507 inches)|
The cylinder head is made of light and strong aluminum alloy with good cooling efficiency; contains wedge-type combustion chambers. A special aluminum bronze valve seat is used in the intake valve, while a heat-resistant steel valve seat is installed in the exhaust valve. All of these parts are hot press fit.
The camshaft is made of special cast iron and is located inside the rocker cover. Four aluminum alloy brackets hold the camshaft. The camshaft bearings are lubricated with the oil holes leading to the main oil gallery of …