Engine & identification
Vehicle identification
| No. of cylinders Type | 4/OHV |
|---|---|
| Capacity cc | 3431 |
| Compression ratio :1 | 20 |
Injection system
| Fuel/injection pump assembly Make | Denso |
|---|---|
| Fuel feed/lift pump delivery pressure bar | 1,8-2,2 |
| Injector nozzle Make | Denso |
| Nozzle and holder assembly Part No. | DN4SDND 135 |
| Nozzle opening pressure - new/used bar | 113-123/103-123 |
| Back leak (pressure loss) bar/secs | 9,8-19,6/10 |
Injection sequence
The injection sequence for the Toyota Landcruiser 3.4 (1985–1989) is 1-3-4-2.
| Injection sequence | 1-3-4-2 |
|---|
Valve clearances
Valve clearances for the Toyota Landcruiser 3.4 (1985–1989) are 0,20 mm inlet and 0,36 mm exhaust, measured hot.
| Valve clearance - INLET mm | 0,20 hot |
|---|---|
| Valve clearance - EXHAUST mm | 0,36 hot |
Engine oil & fluids
Engine oil
The Toyota Landcruiser 3.4 (1985–1989) takes 6.7 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 as an alternative 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 listed total cooling-system capacity is 13.8 litres.
Grades, filling conditions and capacities
| 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 alternative |
| 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 | 6.7 |
| Other lubricants and capacities | |
| Manual transmission oil grade SAE | 75W-90 |
| Manual transmission litres | 4,9/2,2 |
| Differential front/AT litres | 3.0 |
| Differential oil grade - rear SAE | 80W-90 |
| Differential rear litres | 2.5 |
| Cooling system - total capacity litres | 13.8 |
Brakes & wear limits
Brake disc thickness
Brake discs on the Toyota Landcruiser 3.4 (1985–1989) are replaced at a minimum thickness of 19 mm (ventilated) front; the rear brake drums are replaced at a maximum diameter of 297 mm.
| Minimum disc thickness for replacement - ventilated Front | 19 mm |
|---|---|
| Maximum drum diameter for replacement Rear | 297 mm |
Brake disc and drum dimensions
| Disc runout Front | 0,15 mm |
|---|---|
| Minimum pad thickness Front | 1 mm |
| Minimum shoe thickness Rear | 1,5 mm |
| Parking brake travel No. of notches | 7-9 |
Service & electrical
Battery
The Toyota Landcruiser 3.4 (1985–1989) uses a 12 V, 70 Ah battery (reserve capacity 110 minutes).
| Battery V/RC(Ah) | 12/110 (70) |
|---|
Glow plugs
Glow plugs for the Toyota Landcruiser 3.4 (1985–1989): Beru 678 MJ, Bosch 0 250 202 004, Champion CH104 and Lucas/CAV HDS268.
| Glow plug nominal rating V/A | 8,5/9 |
|---|---|
| Glow plug activation time secs | 20 Max |
| Glow plug - part no. Beru | 678 MJ |
| Glow plug - part no. Bosch | 0 250 202 004 |
| Glow plug - part no. Champion | CH104 |
| Glow plug - part no. Lucas/CAV | HDS268 |
Tuning and emissions
| Crankshaft position (n = ATDC) °BTDC | 14 |
|---|---|
| Adjusting method Engine/Pump | Pointer/Overflow |
| Idle speed rpm | 650 |
| Rated no load speed rpm | 4100 |
| Oil temperature °C | 80 |
| Idle speed - for smoke test rpm | 625-675 |
| Governed speed range - for smoke test rpm | 4050-4100 |
| 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 (%) | 2,50 (66) |
Starting and charging
| Starter motor Type | 12V/2,5kW |
|---|---|
| Maximum cranking amps A | 189-231 |
| Alternator output A/V/rpm | 30/14,5/2000 |
| Regulated voltage V | 13,8-14,8 |
Service checks and adjustments
| Compression pressure bar | 29,5 |
|---|---|
| Oil pressure bar/rpm | 2,5-6,0/3000 |
| Radiator cap bar | 0,75-1,00 |
| Thermostat opens °C | 86-90 |
| Drive belt tension - alternator/PAS/AC mm | 11-16 |
Tightening torques
Cylinder head bolt torque
The cylinder head bolts on the Toyota Landcruiser 3.4 (1985–1989) are tightened in 3 stages: 40 Nm, then 60 Nm, then a final 118 Nm.
| Cylinder head | |
|---|---|
| Renew bolts | No |
| Tighten | 40 Nm |
| Tighten | 60 Nm |
| Tighten | 118 Nm |
| Cylinder head instructions | — |
|---|---|
| Other engine tightening torques | |
| Main bearings Renew bolts/nuts | No |
| Main bearings Stage 1 | 98 Nm |
| Main bearings Stage 2 | 196 Nm |
| Big end bearings Renew bolts/nuts | No |
| Big end bearings Stage 1 | 60 Nm |
| Big end bearings Stage 2 | 118 Nm |
| Sump bolts | 18 Nm |
| Sump drain bolt | 34 Nm |
| Flywheel/driveplate | 177 Nm |
| Clutch pressure plate | 19 Nm |
| Crankshaft pulley/damper centre bolt | 240 Nm |
| Camshaft sprocket/gear | 37 Nm |
| Camshaft/rocker cover | 12 Nm |
| Inlet manifold to cylinder head | 18 Nm |
| Exhaust manifold to cylinder head | 47 Nm |
| Injector/clamp | 69 Nm |
| Injector pipe unions | 25 Nm |
| Injector nozzle to holder | 69 Nm |
| Fuel/injection pump flange | 37 Nm |
| Fuel/injection pump mounting | 18 Nm |
| Glow plugs | 12 Nm |
| Chassis tightening torques | |
| Steering track rod end | 91 Nm |
| Brake caliper/carrier to hub Front | 123 Nm |
| Brake caliper/carrier to hub Rear | 103 Nm |
| Back plate to hub Rear | 123 Nm |
| Road wheels | 147 Nm |
Air conditioning
| Air conditioning refrigerant Type | R12 |
|---|---|
| Air conditioning refrigerant quantity grams | 700±50 |
| Air conditioning oil Type | Dens Oil 6 |
Frequently asked questions
What is the injection sequence of the Toyota Landcruiser 3.4?
The injection sequence for the Toyota Landcruiser 3.4 (1985–1989) is 1-3-4-2.
What glow plugs does the Toyota Landcruiser 3.4 use?
Glow plugs for the Toyota Landcruiser 3.4 (1985–1989): Beru 678 MJ, Bosch 0 250 202 004, Champion CH104 and Lucas/CAV HDS268.
How much oil does the Toyota Landcruiser 3.4 take?
The Toyota Landcruiser 3.4 (1985–1989) takes 6.7 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 as an alternative 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 3.4?
Valve clearances for the Toyota Landcruiser 3.4 (1985–1989) are 0,20 mm inlet and 0,36 mm exhaust, measured hot.
What is the cylinder head torque for the Toyota Landcruiser 3.4?
The cylinder head bolts on the Toyota Landcruiser 3.4 (1985–1989) are tightened in 3 stages: 40 Nm, then 60 Nm, then a final 118 Nm.
What is the minimum brake disc thickness for the Toyota Landcruiser 3.4?
Brake discs on the Toyota Landcruiser 3.4 (1985–1989) are replaced at a minimum thickness of 19 mm (ventilated) front; the rear brake drums are replaced at a maximum diameter of 297 mm.