Nissan L28ET (2.8 L) Turbocharged Engine: Specs, Review & Service data

Nissan L28ET  – Nissan / Datsun L28ET Engine Specs

The Nissan / Datsun L28ET is a 2.8 liter, 2753 cc, 6 cylinders inline, four-stroke cycle water-cooled turbocharged internal combustion gasoline engine. It is part of the Nissan L-family.

The Nissan / Datsun L28ET engine features a wedge-shaped combustion chamber, a cast-iron block, an aluminum head with an overhead camshaft and a fully balanced 7-bearing crankshaft.

The cylinder block is cast in a single unit and features deep skirting. The Nissan / Datsun L28ET is fitted with an electronic multiport fuel injection system, a single Garrett AiResearch TB03 internally wastegated turbocharger without an intercooler, and a new engine control system, Nissan’s ECCS (Electronic Concentrated Control System).

Nissan / Datsun L28ET has a 3.39 in (86 mm ) cylinder bore and a 3.11 in (79 mm) piston stroke. The compression ratio rating is 7.4:1. The Nissan / Datsun L28ET turbo produced 182 PS (134 kW; 180 HP) of horsepower and 274 Nm (27.95 kg·m; 202.21 ft·lb) of torque. 

The L28ET engine has a cast-iron cylinder block with a 3.39-inch bore and a 79-millimeter stroke (3.11 in). The seven-bearing support system makes the cylinder block quieter and lasts longer. It is a one-piece structure that was cast in one piece. The ratio of compression is 7.4:1.

SOHC stands for “single overhead camshaft.” The L20ET has twelve valves (two per cylinder). The cylinder head is an aluminum alloy that is light, strong, and cools well. The diameter of the intake valves is 44 mm (1.73 in), and the diameter of the exhaust valves is 35 mm (1.37 in).

Early versions of the L28ET had mechanical rockers that could be adjusted, but after September 1982, these were replaced with hydraulic rockers.

The breakdown of the Nissan / Datsun L28ET  engine code is as follows:

  • L – Engine Family
  • 28 – 2.8 Liter Displacement
  • E – Multi-Point Fuel Injection
  • T – Turbocharger

Nissan Datsun L28ET Engine Specs

Nissan L28ET Engine Specs

Engine Specifications

Engine codeL28ET
LayoutFour stroke, Inline-6 (Straight-6)
Fuel typeGasoline
Displacement2.8 L, 2,753 cc (168.0 cu in)
Fuel systemMultiport Fuel Injection
Power adderTurbocharger Garrett AiResearch TB03/td>
Max. horsepower182 PS (134 kW; 180 HP)
Max. torque274 Nm (27.95 kg·m; 202.21 ft·lb)
Firing order1-5-3-6-2-4
Dimensions (L x H x W):

Vehicle Applications

ModelYears Produced
Datsun 280ZX1980-1983

Cylinder block

Cylinder block alloyCast iron
Compression ratio:7.4:1
Cylinder bore:86 mm (3.39 in)
Piston stroke:79 mm (3.11 in)
Number of piston rings (compression / oil):2 / 1
Number of main bearings:7
Cylinder inner diameter (standard):86.000-86.050 mm (3.3858-3.3878 in)
Piston skirt diameter (standard):85.965-86.015 mm (3.3844-3.3864 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)
Oil0.023-0.070 mm (0.0009-0.0028 in)
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)
Connectin rod small end inner diameter:20.965-20.978 mm (0.8254-0.8259 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)
Crankshaft center distance:39.50 mm (1.5551 in)

Cylinder head (1981-1983 specs)

Valve Arrangement:OHV, chain drive
Valves:12 (2 valves per cylinder)
Intake/Exhaust duration:For USA: 240° / 248°
For Canada: 248° / 248°
Valve head diameter:INTAKE44.0 mm (1.732 in)
EXHAUST35.0 mm (1.378 in)
Valve length:INTAKE112.8-113.1 mm (4.4409-4.4527 in)
EXHAUST113.6-113.9 mm (4.4724-4.4842 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:INTAKEFor USA: 39.95-40.00 mm (1.5728-1.5748 in)
For Canada: 40.30-40.35 mm (1.5866-1586 in)
EXHAUSTFor USA and Canada:40.30-40.35 mm (1.5866-1586 in)
Outer camshaft journal diameter:47.949-47.962 mm (1.8878-1.8883 in)

Tightening torque specs

Main bearing cap bolt44-54 Nm; 4.5-5.5 kg·m; 33-40 ft·lb
Connecting rod big end nut44-54 Nm; 4.5-5.5 kg·m; 33-40 ft·lb
Flywheel bolt (M/T)127-147 Nm; 13.0-15.0 kg·m; 94-108 ft·lb
Drive plate bolt (A/T)127-147 Nm; 13.0-15.0 kg·m; 94-108 ft·lb
Cylinder head bolt78-88 Nm; 8.0-9.0 kg·m; 58-65 ft·lb
Cylinder head to front cover bolt8-14 Nm; 0.8-1.4 kg·m; 5.8-10.1 ft·lb
Pivot bushing bolt78-118 Nm; 8.0-12.0 kg·m; 58-87 ft·lb
Pivot lock nut49-59 Nm; 5.0-6.0 kg·m; 36-46 ft·lb
Camshaft sprocket bolt127-147 Nm; 13.0-15.0 kg·m; 94-108 ft·lb
Chain guide / tensioner bolt6-10 Nm; 0.6-1.0 kg·m; 4.3-7.2 ft·lb
Oil pump bolt11-15 Nm; 1.1-1.5 kg·m; 8-11 ft·lb
Crank pulley nut137-157 Nm; 14.0-16.0 kg·m; 101-116 ft·lb
Rocker cover bolt10-16 Nm; 1.0-1.6 kg·m; 7-12 ft·lb
Spark plug15-20 Nm; 1.5-2.0 kg·m; 11-14 ft·lb
Water outlet bolt12-20 Nm; 1.2-2.0 kg·m; 9-14 ft·lb
Thermostat housing10-16 Nm; 1.0-1.6 kg·m; 7-12 ft·lb
Distributor support bolt4-8 Nm; 0.4-0.8 kg·m; 2.9-5.8 ft·lb
Alternator bracket39-59 Nm; 4.0-6.0 kg·m; 29-43 ft·lb
Engine mouting bracket29-39 Nm; 3.0-4.0 kg·m; 22-29 ft·lb
Fuel pump nut12-18 Nm; 1.2-1.8 kg·m; 9-13 ft·lb

Maintenance Data

Valve clearance (HOT)
Intake valve0.25 mm (0.010 in)
Exhaust valve0.30 mm (0.012 in)
Valve clearance (COLD)
Intake valve0.17 mm (0.007 in)
Exhaust valve0.24 mm (0.009 in)
Compression pressure
Standard10.0 kg/cm2 (981 kPa, 142 psi) / 350 rpm
Minimun7.0 kg/cm2 (686 kPa, 100 psi) / 250 rpm
Oil system
Oil consumption , L/1000 km (qt. per miles)up to 0.5 (1 qt. per 1200 miles)
Recommended engine oil5W-30
Oil type APISE
Engine oil capacity (Refill capacity)With filter change 4.5 l (4-3/4 US qt, 4 Imp qt)
Without filter change 4.0 l (4-1/4 US qt, 3-1/2 Imp qt)
Oil change interval, km (miles)12,000 (7,500) or 6 mounths
Ignition system
Ignition timing21-27° B.T.D.C at 650-750
Spark plugCold: BPR7ES-11
Standard: BPR6ES-11
Hot: BPR5ES-11
Spark plug gap1.0-1.1 mm (0.039-0.043 in)

Also Check:

Final Words

This concludes our discussion of the Nissan / Datsun L28ET (2.8 L) Turbocharged Engine specs and review; however, if you have any questions regarding this article, please submit them in the comment section below. We will do our best to respond to you as soon as possible.

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