Toyota1990–1994Technical specifications

Landcruiser 4.2 Turbo: Technical specifications

Workshop data for the 4.2-litre diesel (engine code 1HD-T). Covers engine, fluids, brakes, service, torques and air conditioning: the figures to check before a job or a parts order.

Common faults & fixes

Summary

Match the engine code (1HD-T) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Toyota
Model: Landcruiser
Years: 1990–1994
Fuel: Diesel
Engine code: 1HD-T

Performance & efficiency

Power: 123 kW (167 hp)
Engine size: 4,164 cc
Cylinders: 6 · OHC
Compression ratio: 18.6:1

Fluids & capacities

Engine oil (with the filter): 9.3 litres

All 109 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	6/OHC
Capacity cc	4164
Compression ratio :1	18,6

Injection system

Fuel/injection pump assembly Make	Denso
Fuel/injection pump assembly Type	VE
Pump type	Rotary
Injector nozzle Make	Denso
Nozzle opening pressure - new/used bar	1)129-135 2)176-186
Leak rate (dribble) bar/secs	9,8-19,5/10

Injection sequence

The injection sequence for the Toyota Landcruiser 4.2 Turbo (1990–1994) is 1-4-2-6-3-5.

Injection sequence	1-4-2-6-3-5

Valve clearances

Valve clearances for the Toyota Landcruiser 4.2 Turbo (1990–1994) are 0,15-0,25 mm inlet and 0,35-0,45 mm exhaust, measured cold.

Valve clearance - INLET mm	0,15-0,25 cold
Valve clearance - EXHAUST mm	0,35-0,45 cold

Engine oil & fluids

Engine oil

The Toyota Landcruiser 4.2 Turbo (1990–1994) takes 9.3 litres of engine oil with the filter.

A listed engine oil option is SAE 10W-30 for cold climates, with API/ACEA classification CF/B2.

A listed engine oil option is SAE 10W-40 for moderate climates, with API/ACEA classification CF/B2.

A listed engine oil option is SAE 20W-50 for moderate climates.

A listed engine oil option is SAE 20W-40 for hot climates, with API/ACEA classification CF/B2.

Manual gearbox

The specified manual gearbox oil is SAE 75W-90.

See the reference table for the complete manual gearbox entries and their conditions.

Coolant

The total cooling-system capacity entries are 11.1 litres without a stated condition; 10.9 litres for AT.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range	Cold climate
Engine oil grade SAE	10W-30
Engine oil classification API/ACEA	CF/B2
Ambient temperature range	Moderate climate
Engine oil grade SAE	10W-40
Engine oil classification API/ACEA	CF/B2
Ambient temperature range	Moderate climate
Engine oil grade SAE	20W-50
Ambient temperature range	Hot climate
Engine oil grade SAE	20W-40
Engine oil classification API/ACEA	CF/B2
Engine with filter(s) litres	9.3
Other lubricants and capacities
Manual transmission oil grade SAE	75W-90
Manual transmission litres	2,6/1,3
Automatic transmission fluid Type	Dexron II
Automatic transmission (drain & refill) litres	6.0
Differential front/AT litres	2.8
Differential oil grade - rear SAE	80W-90
Differential rear litres	2.8
Cooling system - total capacity litres	11,1 AT=10,9
Brake fluid Type	DOT 3
Power steering fluid Type	Dexron II
Power steering fluid litres	0.8

Brakes & wear limits

Brake disc thickness

Brake discs on the Toyota Landcruiser 4.2 Turbo (1990–1994) are replaced at a minimum thickness of 23 mm (ventilated) front and 16 mm rear.

Minimum disc thickness for replacement - ventilated Front	23 mm
Minimum disc thickness for replacement Rear	16 mm
Maximum drum diameter for replacement Rear	297 mm

Brake disc and drum dimensions

Disc runout Front	0,15 mm
Disc runout Rear	0,09 mm
Minimum pad thickness Front	1 mm
Minimum pad thickness Rear	1 mm
Minimum shoe thickness Rear	1,5 mm
Parking brake travel No. of notches	7-9

Service & electrical

Battery

The Toyota Landcruiser 4.2 Turbo (1990–1994) uses a 12 V, 80 Ah battery (reserve capacity 130 minutes).

Battery V/RC(Ah)	12/130 (80)

Glow plugs

Glow plugs for the Toyota Landcruiser 4.2 Turbo (1990–1994): Bosch 0 250 202 095 and NGK Y-532J.

Glow plug nominal rating V/A	12,0
Glow plug activation time secs	5,0
Glow plug - part no. Bosch	0 250 202 095
Glow plug - part no. NGK	Y-532J

Tuning and emissions

Plunger travel (pump) mm ABDC	1,29-1,35
Crankshaft position (n = ATDC) °BTDC	—
Adjusting method Engine/Pump	Pointer/Dial gauge
Idle speed rpm	600-700
Idle speed - alternative rpm	AT=750-850
Rated no load speed rpm	4400
Oil temperature °C	80
Idle speed - for smoke test rpm	600-700 AT=750-850
Governed speed range - for smoke test rpm	4350-4400
Maximum time at governed speed secs	1,0
Test mode A/B	B
Probe type 1/2	1
Conditioning Accelerations/rpm	3
Smoke opacity - EU limit m-1 (%)	3,00 (73)
Smoke opacity - homologation value m-1 (%)	2,50 (66)

Starting and charging

Starter motor Type	24V/4,5kW
Alternator Type	55A
Alternator output A/V/rpm	30/28/2000
Regulated voltage V	27,7-28,7

Service checks and adjustments

Compression pressure bar	25-35
Turbo boost pressure bar/rpm	—
Oil pressure bar/rpm	2,5/3000
Radiator cap bar	0,73-1,02
Thermostat opens °C	74-78
Drive belt tension - alternator/PAS/AC mm	8-11

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Toyota Landcruiser 4.2 Turbo (1990–1994) are tightened in 3 stages: 69 Nm, then 90°, then a final 90°.

Cylinder head
Tighten	69 Nm
Tighten	90°
Tighten	90°

Other engine tightening torques
Cylinder head instructions	—
Main bearings Renew bolts/nuts	No
Main bearings Stage 1	103 Nm
Main bearings Stage 2	90°
Big end bearings Renew bolts/nuts	No
Big end bearings Stage 1	37 Nm
Big end bearings Stage 2	90°
Oil pump to cylinder block	20 Nm
Sump bolts	10 Nm
Sump drain bolt	25 Nm
Flywheel/driveplate	127 Nm
Clutch pressure plate	39 Nm
Crankshaft pulley/damper centre bolt	490 Nm
Camshaft sprocket/gear	98 Nm
Camshaft carrier/cap	—
View more information	—
Inlet manifold to cylinder head	20 Nm
Exhaust manifold to cylinder head	39 Nm
Water pump	20 Nm
Injector/clamp	39 Nm
Injector pipe unions	25 Nm
Injector nozzle to holder	34 Nm
Fuel/injection pump sprocket/gear	98 Nm
Fuel/injection pump flange	18 Nm
Glow plugs	13 Nm
Chassis tightening torques
Steering wheel	34 Nm
Steering rack/box mounting	142 Nm
Steering track rod end	91 Nm
Steering box drop arm	177 Nm
Brake disc to hub Front	74 Nm
Brake caliper/carrier to hub Front	123 Nm
Brake caliper to carrier Rear	88 Nm
Brake caliper/carrier to hub Rear	103 Nm
Road wheels	157 Nm

Air conditioning

Air conditioning refrigerant Type	R12
Air conditioning refrigerant quantity grams	900±50
Air conditioning oil Type	Dens Oil 6

Frequently asked questions

What is the injection sequence of the Toyota Landcruiser 4.2 Turbo?

The injection sequence for the Toyota Landcruiser 4.2 Turbo (1990–1994) is 1-4-2-6-3-5.

What glow plugs does the Toyota Landcruiser 4.2 Turbo use?

Glow plugs for the Toyota Landcruiser 4.2 Turbo (1990–1994): Bosch 0 250 202 095 and NGK Y-532J.

How much oil does the Toyota Landcruiser 4.2 Turbo take?

The Toyota Landcruiser 4.2 Turbo (1990–1994) takes 9.3 litres of engine oil with the filter. A listed engine oil option is SAE 10W-30 for cold climates, with API/ACEA classification CF/B2. A listed engine oil option is SAE 10W-40 for moderate climates, with API/ACEA classification CF/B2. A listed engine oil option is SAE 20W-50 for moderate climates. A listed engine oil option is SAE 20W-40 for hot climates, with API/ACEA classification CF/B2.

What are the valve clearances for the Toyota Landcruiser 4.2 Turbo?

Valve clearances for the Toyota Landcruiser 4.2 Turbo (1990–1994) are 0,15-0,25 mm inlet and 0,35-0,45 mm exhaust, measured cold.

What is the cylinder head torque for the Toyota Landcruiser 4.2 Turbo?

The cylinder head bolts on the Toyota Landcruiser 4.2 Turbo (1990–1994) are tightened in 3 stages: 69 Nm, then 90°, then a final 90°.

What is the minimum brake disc thickness for the Toyota Landcruiser 4.2 Turbo?

Brake discs on the Toyota Landcruiser 4.2 Turbo (1990–1994) are replaced at a minimum thickness of 23 mm (ventilated) front and 16 mm rear.