Engine & identification
Vehicle identification
| No. of cylinders Type | 4/OHV |
|---|---|
| Capacity (Fiscal) cc | 2286 (2256) |
| Compression ratio :1 | 8,0 LC=7,0 |
| Suitable for unleaded petrol | Yes |
| Minimum octane rating RON | 91 |
| Ignition system Type | SZ |
| Ignition system Description | CB |
| Fuel system Make | Weber |
| Fuel system Type | 32/34 DMTL |
| Fuel system Description | Carb-2V |
Ignition system
| Ignition coil Make | Lucas |
|---|---|
| Ignition coil Type | HA 12 |
| Primary resistance Ohm | 3,0-3,5 |
| Distributor (ECM) Make | Lucas/Ducellier |
| Distributor (ECM) No. | 45D4/- |
| Contact breaker gap/trigger air gap mm | 0,4 |
| Dwell angle °(%) | — |
Firing order
The firing order for the Land Rover 90 2.3 (1983–1985) is 1-3-4-2.
| Firing order | 1-3-4-2 |
|---|
Valve clearances
Valve clearances for the Land Rover 90 2.3 (1983–1985) are 0,25 mm inlet and 0,25 mm exhaust, measured hot.
| Valve clearance - INLET mm | 0,25 hot |
|---|---|
| Valve clearance - EXHAUST mm | 0,25 hot |
Engine oil & fluids
Engine oil
The Land Rover 90 2.3 (1983–1985) takes 6.8 litres of engine oil with the filter. The specified engine oil grade is SAE 10W-40 for moderate climates, with API/ACEA classification SF.
Manual gearbox
The manual gearbox has a listed capacity of 1.8 litres.
Coolant
The total cooling-system capacity entries are 10.3 litres without a stated condition; 11.0 litres for HD.
Grades, filling conditions and capacities
| Engine oil options | |
|---|---|
| Ambient temperature range | Moderate climate |
| Engine oil grade SAE | 10W-40 |
| Engine oil classification API/ACEA | SF |
| Engine with filter(s) litres | 6.8 |
| Other lubricants and capacities | |
| Manual transmission litres | 1.8 |
| Differential front/AT litres | 1.7 |
| Differential rear litres | 2.3 |
| Cooling system - total capacity litres | 10,3 HD=11,0 |
Service & electrical
Ignition timing
Basic ignition timing for the Land Rover 90 2.3 (1983–1985) is 0° BTDC at 650 rpm.
| Ignition timing | With vacuum |
|---|---|
| Ignition timing - basic BTDC °Engine/rpm | 0/650 |
Battery
The Land Rover 90 2.3 (1983–1985) uses a 12 V, 55 Ah battery (reserve capacity 85 minutes).
| Battery V/RC(Ah) | 12/85 (55) |
|---|
Spark plugs
The Land Rover 90 2.3 (1983–1985) uses Champion RN12YC spark plugs with a 0,8 mm electrode gap.
| Spark plugs Original equipment | Champion |
|---|---|
| Spark plug Type | RN12YC |
| Electrode gap mm | 0,8 |
| Spark plugs Make | Bosch |
| Spark plug Type | H6DC |
| Electrode gap mm | 0,6 |
| Spark plugs Make | Champion |
| Spark plug Type | RN12YC |
| Electrode gap mm | 0,8 |
| Spark plugs Make | NGK |
| Spark plug Type | BP6EFS |
| Electrode gap mm | 0,6 |
Tuning and emissions
| Ignition advance | Without vacuum and basic timing |
|---|---|
| Ignition advance checks °Engine/rpm | 0-2/600 |
| Ignition advance checks °Engine/rpm | 38-42/4500 |
| Vacuum check | Ignition timing advances |
| Vacuum range °Engine | 22-26 |
| Vacuum starts mbar | 118 |
| Vacuum ends mbar | 845 |
| Idle speed rpm | 600-700 |
| Oil temperature °C | 60 |
| CO level at idle speed - tailpipe Vol. % CO | 1,0-2,5 |
| 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 | Lucas |
|---|---|
| Starter motor Type | 2M100 |
| Maximum cranking amps A | 149-182 |
| Alternator Make | Lucas |
| Alternator Type | A115-34 |
| Alternator output A/V/rpm | 34/14/2500 |
| Regulated voltage V | 13,6-14,4 |
Service checks and adjustments
| Compression pressure bar | 11,2 |
|---|---|
| Oil pressure bar/rpm | 2,5-4,5 |
| Radiator cap bar | 0,60 |
| Thermostat opens °C | 82 |
Tightening torques
Cylinder head bolt torque
The cylinder head bolt torque for the Land Rover 90 2.3 (1983–1985) is 80-102 Nm.
| Cylinder head | |
|---|---|
| Tighten | 80-102 Nm |
| Cylinder head instructions | — | |
|---|---|---|
| Other engine tightening torques | ||
| Main bearings Stage 1 | 65-68 Nm | |
| Main bearings Stage 2 | 130-136 Nm | |
| Big end bearings Stage 1 | 17-18 Nm | |
| Big end bearings Stage 2 | 34-36 Nm | |
| Flywheel/driveplate | 130-143 Nm | |
| Crankshaft pulley/damper centre bolt | 270 Nm | |
| Spark plugs | 14-19 Nm | |
| Chassis tightening torques | ||
| Road wheels | 108 Nm | |
Bar lengths use a square-root scale so small and large values stay readable.
Frequently asked questions
What is the firing order of the Land Rover 90 2.3?
The firing order for the Land Rover 90 2.3 (1983–1985) is 1-3-4-2.
What spark plugs does the Land Rover 90 2.3 use?
The Land Rover 90 2.3 (1983–1985) uses Champion RN12YC spark plugs with a 0,8 mm electrode gap.
How much oil does the Land Rover 90 2.3 take?
The Land Rover 90 2.3 (1983–1985) takes 6.8 litres of engine oil with the filter. The specified engine oil grade is SAE 10W-40 for moderate climates, with API/ACEA classification SF.
What are the valve clearances for the Land Rover 90 2.3?
Valve clearances for the Land Rover 90 2.3 (1983–1985) are 0,25 mm inlet and 0,25 mm exhaust, measured hot.
What is the cylinder head torque for the Land Rover 90 2.3?
The cylinder head bolt torque for the Land Rover 90 2.3 (1983–1985) is 80-102 Nm.
What is the ignition timing for the Land Rover 90 2.3?
Basic ignition timing for the Land Rover 90 2.3 (1983–1985) is 0° BTDC at 650 rpm.