Nissan L28ET

Nissan L28ETThe Nissan / Datsun L28ET is a 2.8 liter (2753 cc) six cylinders inline, four-stroke cycle water-cooled turbocharged internal combustion gasoline engine from Nissan L-family.

The Nissan / Datsun L28ET engine features a cast-iron block, a wedge-shaped combustion chamber, aluminum head with overhead camshaft and a fully balanced 7-bearing crankshaft. The cylinder block is cast in a single unit and features deep skirting. The L28ET is equipped with electronic multiport fuel injection system, a single Garrett AiResearch TB03 internally wastegated turbocharger without intercooler and new engine control system, Nissan’s Electronic Concentrated Control System (ECCS).

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

The breakdown of the engine code is as follows:

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

General information

Engine Specifications
Engine code L28ET
Layout Four stroke, Inline-6 (Straight-6)
Fuel type Gasoline
Production 1980-1983
Displacement 2.8 L, 2,753 cc (168.0 cu in)
Fuel system Multiport Fuel Injection
Power adder Turbocharger Garrett AiResearch TB03/td>
Max. horsepower 182 PS (134 kW; 180 HP)
Max. torque 274 Nm (27.95 kg·m; 202.21 ft·lb)
Firing order 1-5-3-6-2-4
Dimensions (L x H x W):

Cylinder block

The L28ET engine has a cast-iron cylinder block, bore is 86 mm (3.39 in) and stroke is 79 mm (3.11 in). The cylinder block, a monoblock specially cast structure, employs the seven bearing support system for quietness and higher durability. The compression ratio rating is 7.4:1.

Cylinder block
Cylinder block alloy Cast 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: Top 0.040-0.073 mm (0.0016-0.0029 in)
Second 0.030-0.063 mm (0.0012-0.0025 in)
Oil 0.023-0.070 mm (0.0009-0.0028 in)
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)
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

The L20ET has a SOHC design (single overhead camshaft) with twelve valves (two per cylinder). The cylinder head is made of a light, strong aluminum alloy with good cooling efficiency. Intake valves are 44 mm (1.73 in) in diameter and the exhaust valves are 35 mm (1.37 in). The early versions of L28ET were equipped with adjustable mechanical rockers though these were phased out after September 1982 in favor of hydraulic rockers.

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: INTAKE 44.0 mm (1.732 in)
EXHAUST 35.0 mm (1.378 in)
Valve length: INTAKE 112.8-113.1 mm (4.4409-4.4527 in)
EXHAUST 113.6-113.9 mm (4.4724-4.4842 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 For USA: 39.95-40.00 mm (1.5728-1.5748 in)
For Canada: 40.30-40.35 mm (1.5866-1586 in)
EXHAUST For 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

Tightening torque specs
Main bearing cap bolt 44-54 Nm; 4.5-5.5 kg·m; 33-40 ft·lb
Connecting rod big end nut 44-54 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 bolt 78-88 Nm; 8.0-9.0 kg·m; 58-65 ft·lb
Cylinder head to front cover bolt 8-14 Nm; 0.8-1.4 kg·m; 5.8-10.1 ft·lb
Pivot bushing bolt 78-118 Nm; 8.0-12.0 kg·m; 58-87 ft·lb
Pivot lock nut 49-59 Nm; 5.0-6.0 kg·m; 36-46 ft·lb
Camshaft sprocket bolt 127-147 Nm; 13.0-15.0 kg·m; 94-108 ft·lb
Chain guide / tensioner bolt 6-10 Nm; 0.6-1.0 kg·m; 4.3-7.2 ft·lb
Oil pump bolt 11-15 Nm; 1.1-1.5 kg·m; 8-11 ft·lb
Crank pulley nut 137-157 Nm; 14.0-16.0 kg·m; 101-116 ft·lb
Rocker cover bolt 10-16 Nm; 1.0-1.6 kg·m; 7-12 ft·lb
Spark plug 15-20 Nm; 1.5-2.0 kg·m; 11-14 ft·lb
Water outlet bolt 12-20 Nm; 1.2-2.0 kg·m; 9-14 ft·lb
Thermostat housing 10-16 Nm; 1.0-1.6 kg·m; 7-12 ft·lb
Distributor support bolt 4-8 Nm; 0.4-0.8 kg·m; 2.9-5.8 ft·lb
Alternator bracket 39-59 Nm; 4.0-6.0 kg·m; 29-43 ft·lb
Engine mouting bracket 29-39 Nm; 3.0-4.0 kg·m; 22-29 ft·lb
Fuel pump nut 12-18 Nm; 1.2-1.8 kg·m; 9-13 ft·lb

Maintenance data

Valve clearance (HOT)
Intake valve 0.25 mm (0.010 in)
Exhaust valve 0.30 mm (0.012 in)
Valve clearance (COLD)
Intake valve 0.17 mm (0.007 in)
Exhaust valve 0.24 mm (0.009 in)
Compression pressure
Standard 10.0 kg/cm2 (981 kPa, 142 psi) / 350 rpm
Minimun 7.0 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 oil 5W-30
Oil type API SE
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 timing 21-27° B.T.D.C at 650-750
Spark plug Cold: BPR7ES-11
Standard: BPR6ES-11
Hot: BPR5ES-11
Spark plug gap 1.0-1.1 mm (0.039-0.043 in)

Vehicle applications

Model Years Produced
Datsun 280ZX 1980-1983
ATTENTION! Dear visitors, this site is not a trading platform, an official dealer or a spare parts supplier, so we do not have any price lists or spare parts catalogs. We are an information portal and provide the technical specifications of gasoline and diesel engines.

We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.

Be the first to comment

Leave a Reply

Your email address will not be published.