Engine & identification
Vehicle identification
| No. of cylinders Type | 4/OHV |
|---|---|
| Capacity (Fiscal) cc | 1812 (1799) |
| Compression ratio :1 | 8,8 |
| Suitable for unleaded petrol | Yes |
| Minimum octane rating RON | 91 |
| Ignition system Type | SZ |
| Ignition system Description | CB |
| Fuel system Make | Aisan |
| Fuel system Description | Carb-2V |
| Diagnostic socket | No |
Ignition system
| Ignition coil Make | Denso |
|---|---|
| Ballast resistance Ohm | 1,3-1,5 |
| Primary resistance Ohm | 1,3-1,6 |
| Secondary resistance Ohm | 10700-14500 |
| Distributor (ECM) Make | Denso |
| Distributor (ECM) No. | 71020 |
| Contact breaker gap/trigger air gap mm | 0,45 |
| Dwell angle °(%) | 50-54 (56-60) |
Firing order
The firing order for the Toyota Hilux 1.8 (1983–1988) is 1-3-4-2.
| Firing order | 1-3-4-2 |
|---|
Valve clearances
Valve clearances on the Toyota Hilux 1.8 (1983–1988) are hydraulic — they self-adjust, so no manual clearance figure applies.
| Valve clearance - INLET mm | Hydraulic |
|---|---|
| Valve clearance - EXHAUST mm | Hydraulic |
Engine oil & fluids
Engine oil
The Toyota Hilux 1.8 (1983–1988) takes 3.5 litres of engine oil with the filter.
A listed engine oil option is SAE 5W-30 for cold climates, with API/ACEA classification SF/A2.
A listed engine oil option is SAE 10W-30 for moderate climates, with API/ACEA classification SF/A2.
A listed engine oil option is SAE 10W-40 as an alternative for moderate climates, with API/ACEA classification SF/A2.
A listed engine oil option is SAE 20W-40 for hot climates, with API/ACEA classification SF/A2.
Manual gearbox
The manual gearbox has a listed capacity of 2.2 litres. The specified oil is SAE 80W-90.
Coolant
See the reference table for the complete coolant entries and their conditions.
Grades, filling conditions and capacities
| Engine oil options | |
|---|---|
| Ambient temperature range | Cold climate |
| Engine oil grade SAE | 5W-30 |
| Engine oil classification API/ACEA | SF/A2 |
| Ambient temperature range | Moderate climate |
| Engine oil grade SAE | 10W-30 |
| Engine oil classification API/ACEA | SF/A2 |
| Ambient temperature range | Moderate climate alternative |
| Engine oil grade SAE | 10W-40 |
| Engine oil classification API/ACEA | SF/A2 |
| Ambient temperature range | Hot climate |
| Engine oil grade SAE | 20W-40 |
| Engine oil classification API/ACEA | SF/A2 |
| Engine with filter(s) litres | 3.5 |
| Other lubricants and capacities | |
| Manual transmission oil grade SAE | 80W-90 |
| Manual transmission litres | 2.2 |
| Automatic transmission fluid Type | Dexron II |
| Automatic transmission (drain & refill) litres | 2.4 |
| Automatic transmission (dry fill) litres | 6.5 |
| Differential oil grade - rear SAE | 90W |
| Differential oil classification - rear | GL-5 |
| Differential oil grade - rear | |
| Differential rear litres | 2.2 |
| Cooling system - total capacity litres | 7.2 |
Brakes & wear limits
Brake disc thickness
Brake discs on the Toyota Hilux 1.8 (1983–1988) are replaced at a minimum thickness of 11,5 mm (solid) or 21 mm (ventilated) front; the rear brake drums are replaced at a maximum diameter of 256 mm.
| Minimum disc thickness for replacement - solid Front | 11,5 mm |
|---|---|
| Minimum disc thickness for replacement - ventilated Front | 21 mm |
| Minimum disc thickness | |
| Maximum drum diameter for replacement Rear | 256 mm |
Brake disc and drum dimensions
| Minimum disc thickness | |
|---|---|
| Disc runout Front | 0,15 mm |
| Minimum pad thickness Front | 1 mm |
| Minimum shoe thickness Rear | 1 mm |
| Parking brake travel No. of notches | 10-15 |
Service & electrical
Ignition timing
Basic ignition timing for the Toyota Hilux 1.8 (1983–1988) is 8°±2° BTDC at 650 rpm.
| Ignition timing | Without vacuum |
|---|---|
| Ignition timing - basic BTDC °Engine/rpm | 8±2/650 |
Battery
The Toyota Hilux 1.8 (1983–1988) uses a 12 V, 45 Ah battery (reserve capacity 65 minutes).
| Battery V/RC(Ah) | 12/65 (45) |
|---|
Spark plugs
The Toyota Hilux 1.8 (1983–1988) uses NGK BPR5EY spark plugs with a 0,8 mm electrode gap.
| Spark plugs Original equipment | NGK |
|---|---|
| Spark plug Type | BPR5EY |
| Electrode gap mm | 0,8 |
| Spark plugs Make | Champion |
| Spark plug Type | RN9YCC |
| Electrode gap mm | 0,8 |
| Spark plugs Make | NGK |
| Spark plug Type | BPR5EY |
| Electrode gap mm | 0,8 |
Tuning and emissions
| Ignition advance | Without vacuum and basic timing |
|---|---|
| Ignition advance checks °Engine/rpm | 1-4/1800 |
| Ignition advance checks °Engine/rpm | 13-17/4300 |
| Ignition advance checks °Engine/rpm | 17-20/4900 |
| Vacuum check | Ignition timing advances |
| Vacuum range °Engine | 8-10 |
| Vacuum starts mbar | 106 |
| Vacuum ends mbar | 440 |
| Idle speed rpm | 650±50 |
| Idle speed - alternative rpm | AT=750±50 |
| Fast idle speed - MT/AT rpm | 2600±200 |
| Oil temperature °C | 60-80 |
| CO level at idle speed - tailpipe Vol. % CO | 0,5-2,5 |
| HC level at idle speed ppm | 300 |
| CO2 level at idle speed Vol. % CO2 | 13-16 |
| O2 level at idle speed Vol. % O2 | 0,5-2,0 |
Starting and charging
| Starter motor Make | Denso |
|---|---|
| Minimum starting voltage V | 11,5 |
| Maximum cranking amps A | 122-149 |
| Alternator Make | Nippon Denso |
| Alternator output A/V/rpm | 40/14/2500 |
| Regulated voltage V | 13,8-14,8 |
Service checks and adjustments
| Compression pressure bar | 9,0-12,5 |
|---|---|
| Oil pressure bar/rpm | 2,5-5,0/3000 |
| Radiator cap bar | 0,60-1,05 |
| Thermostat opens °C | 82 |
| Drive belt tension - alternator/PAS/AC mm | 7-8/7-9 |
Fuel system
| Fuel pump delivery pressure bar | 0,2-0,3 |
|---|
Tightening torques
Cylinder head bolt torque
The cylinder head bolts on the Toyota Hilux 1.8 (1983–1988) are tightened in 3 stages: 30 Nm, then 60 Nm, then a final 88 Nm.
| Cylinder head | |
|---|---|
| Renew bolts | No |
| Tighten | 30 Nm |
| Tighten | 60 Nm |
| Tighten | 88 Nm |
| Cylinder head instructions | — |
|---|---|
| Other engine tightening torques | |
| Main bearings Renew bolts/nuts | No |
| Main bearings Stage 1 | 39 Nm |
| Main bearings Stage 2 | 78 Nm |
| Big end bearings Renew bolts/nuts | No |
| Big end bearings Stage 1 | 25 Nm |
| Big end bearings Stage 2 | 49 Nm |
| Oil pump to cylinder block | 18 Nm |
| Sump bolts | 13 Nm |
| Flywheel/driveplate | 83 Nm/74 Nm |
| Clutch pressure plate | 19 Nm |
| Crankshaft pulley/damper centre bolt | 157 Nm |
| Camshaft sprocket/gear | 90 Nm |
| Inlet manifold to cylinder head | 49 Nm |
| Exhaust manifold to cylinder head | 49 Nm |
| Spark plugs | 18 Nm |
| Chassis tightening torques | |
| Steering track rod end | 59 Nm |
| Brake caliper to carrier Front | 18 Nm |
| Brake caliper/carrier to hub Front | 99-117 Nm |
| Road wheels | 103 Nm |
Frequently asked questions
What is the firing order of the Toyota Hilux 1.8?
The firing order for the Toyota Hilux 1.8 (1983–1988) is 1-3-4-2.
What spark plugs does the Toyota Hilux 1.8 use?
The Toyota Hilux 1.8 (1983–1988) uses NGK BPR5EY spark plugs with a 0,8 mm electrode gap.
How much oil does the Toyota Hilux 1.8 take?
The Toyota Hilux 1.8 (1983–1988) takes 3.5 litres of engine oil with the filter. A listed engine oil option is SAE 5W-30 for cold climates, with API/ACEA classification SF/A2. A listed engine oil option is SAE 10W-30 for moderate climates, with API/ACEA classification SF/A2. A listed engine oil option is SAE 10W-40 as an alternative for moderate climates, with API/ACEA classification SF/A2. A listed engine oil option is SAE 20W-40 for hot climates, with API/ACEA classification SF/A2.
What are the valve clearances for the Toyota Hilux 1.8?
Valve clearances on the Toyota Hilux 1.8 (1983–1988) are hydraulic — they self-adjust, so no manual clearance figure applies.
What is the cylinder head torque for the Toyota Hilux 1.8?
The cylinder head bolts on the Toyota Hilux 1.8 (1983–1988) are tightened in 3 stages: 30 Nm, then 60 Nm, then a final 88 Nm.
What is the ignition timing for the Toyota Hilux 1.8?
Basic ignition timing for the Toyota Hilux 1.8 (1983–1988) is 8°±2° BTDC at 650 rpm.