Land Rover   ·   1986–1992

Range Rover Classic 2.4 Turbo: Technical specifications

Technical specifications (1986–1992)

The Land Rover Range Rover Classic (73-95) 2.4 Turbo is the 2.4-litre diesel variant, engine code HR492H1, built from 1986 to 1992. Quick answers and key figures below, then the full workshop tables.

Engine codeHR492H1
Power83 kW (113 hp)@ 4200 rpm
FuelDiesel
Cylinders4
Oil capacity6,0litres · with the filter

Engine & identification

Vehicle identification

No. of cylinders Type4/OHV
Capacity cc2393
Compression ratio :121,5

Injection system

Fuel/injection pump assembly MakeBosch
Fuel/injection pump assembly TypeVE4/10F
Fuel/injection pump assembly Part No.0 460 404 042
Pump typeRotary
Injector nozzle MakeBosch
Nozzle and holder assembly Part No.KBE 5854/4
Nozzle and holder assembly Part No.0 432 297 047
Nozzle opening pressure - new/used bar150-158/135-142

Injection sequence

The injection sequence for the Land Rover Range Rover Classic 2.4 Turbo (1986–1992) is 1-3-4-2.

Injection sequence1-3-4-2

Valve clearances

Valve clearances for the Land Rover Range Rover Classic 2.4 Turbo (1986–1992) are 0,30 mm inlet and 0,30 mm exhaust, measured cold.

Valve clearance - INLET mm0,30 cold
Valve clearance - EXHAUST mm0,30 cold

Engine oil & fluids

Engine oil

The Land Rover Range Rover Classic 2.4 Turbo (1986–1992) takes 6.0 litres of engine oil with the filter.

A listed engine oil option is SAE 5W-30 for cold climates, with API/ACEA classification CF/B2.

A listed engine oil option is SAE 15W-40 for moderate climates, with API/ACEA classification CF/B2.

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

A listed engine oil option is SAE 20W-50 for hot climates, with API/ACEA classification CF/B2.

Manual gearbox

The manual gearbox has a listed capacity of 2.7 litres. The specified oil is ATF M2C33.

Coolant

The listed total cooling-system capacity is 11.5 litres.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range Cold climate
Engine oil grade SAE 5W-30
Engine oil classification API/ACEA CF/B2
Ambient temperature range Moderate climate
Engine oil grade SAE 15W-40
Engine oil classification API/ACEA CF/B2
Ambient temperature range Moderate climate alternative
Engine oil grade SAE 10W-40
Engine oil classification API/ACEA CF/B2
Ambient temperature range Hot climate
Engine oil grade SAE 20W-50
Engine oil classification API/ACEA CF/B2
Engine with filter(s) litres 6.0
Other lubricants and capacities
Manual transmission oil grade SAE ATF M2C33
Manual transmission litres 2.7
Automatic transmission fluid Type Dexron IID
Automatic transmission (drain & refill) litres 5.0
Differential front/AT litres 1.7
Differential oil grade - rear SAE 90W
Differential rear litres 2.3
Cooling system - total capacity litres 11.5
Brake fluid Type DOT 4
Power steering fluid Type Dexron II
Power steering fluid litres 1.7

Brakes & wear limits

Brake disc thickness

Brake discs on the Land Rover Range Rover Classic 2.4 Turbo (1986–1992) are replaced at a minimum thickness of 12 mm (solid) or 22 mm (ventilated) front and 11,7 mm rear.

Minimum disc thickness for replacement - solid Front12 mm
Minimum disc thickness for replacement - ventilated Front22 mm
Minimum disc thickness for replacement Rear11,7 mm

Brake disc and drum dimensions

Disc runout Front0,15 mm
Disc runout Rear0,15 mm
Minimum pad thickness Front2 mm
Minimum pad thickness Rear2 mm
Minimum shoe thickness Rear2 mm
Parking brake travel No. of notches3-4

Bar lengths use a square-root scale so small and large values stay readable.

Service & electrical

Battery

The Land Rover Range Rover Classic 2.4 Turbo (1986–1992) uses a 12 V, 45 Ah battery (reserve capacity 65 minutes).

Battery V/RC(Ah)12/65 (45)

Glow plugs

Glow plugs for the Land Rover Range Rover Classic 2.4 Turbo (1986–1992): Beru 657 MJ, Bosch 0 250 201 012, Champion CH70 and Lucas/CAV DS052.

Glow plug nominal rating V/A11/10,5
Glow plug activation time secs10
Glow plug - part no. Beru657 MJ
Glow plug - part no. Bosch0 250 201 012
Glow plug - part no. ChampionCH70
Glow plug - part no. Lucas/CAVDS052

Tuning and emissions

Plunger travel (pump) mm ABDC0,5
Crankshaft position (n = ATDC) °BTDC3
Adjusting method Engine/PumpSpecial Tool/Dial gauge
Dynamic timing v = BTDC, n = ATDCv
- Time Trac Stanadyne, Snap-on °/rpm11/900
Idle speed rpm750-800
Rated no load speed rpm4700-4730
Oil temperature °C70
Idle speed - for smoke test rpm650-800
Governed speed range - for smoke test rpm4350-4690
Maximum time at governed speed secs2,0
Test mode A/BB
Probe type 1/21
Smoke opacity - EU limit m-1 (%)3,00 (73)
Smoke opacity - homologation value m-1 (%)2,35 (64)

Starting and charging

Starter motor MakeBosch
Maximum cranking amps A122-149
Alternator MakeLucas
Alternator Type133/65
Alternator output A/V/rpm65/14/3000
Voltage regulator Type133/65

Service checks and adjustments

Compression pressure bar24,0-26,0
Oil pressure bar/rpm3,5-4,0/2000
Radiator cap bar0,70
Thermostat opens °C88±2
Drive belt size - alternator mm12,5x1175
Drive belt size - PAS/AC mm12,5x875
Drive belt tension - alternator/PAS/AC mm7-15

Tightening torques

Cylinder head instructions
View more information
Other engine tightening torques
Main bearings Renew bolts/nutsNo
Main bearings Stage 122 Nm
Main bearings Stage 244 Nm
Big end bearings Renew bolts/nutsNo
Big end bearings Stage 140 Nm
Big end bearings Stage 280 Nm
Oil pump to cylinder block25 Nm
Sump bolts11 Nm
Sump drain bolt80 Nm
Flywheel/driveplate108 Nm
Clutch pressure plate24-30 Nm
Crankshaft pulley/damper centre bolt150-160 Nm
Camshaft/rocker cover10 Nm
Inlet manifold to cylinder head30-35 Nm
Exhaust manifold to cylinder head30-35 Nm
Injector/clamp24 Nm
Injector pipe unions19 Nm
Injector nozzle to holder24-30 Nm
Fuel/injection pump sprocket/gear88 Nm
Fuel/injection pump flange30 Nm
Glow plugs23 Nm
Chassis tightening torques
Brake caliper/carrier to hub Front82 Nm
Brake caliper/carrier to hub Rear82 Nm
Road wheels109±8 Nm

Bar lengths use a square-root scale so small and large values stay readable.

Air conditioning

Air conditioning refrigerant TypeR12
Air conditioning refrigerant quantity grams
Air conditioning oil TypeSuniso 4GS
Air conditioning oil quantity cm³135±15

Frequently asked questions

What is the injection sequence of the Land Rover Range Rover Classic 2.4 Turbo?

The injection sequence for the Land Rover Range Rover Classic 2.4 Turbo (1986–1992) is 1-3-4-2.

What glow plugs does the Land Rover Range Rover Classic 2.4 Turbo use?

Glow plugs for the Land Rover Range Rover Classic 2.4 Turbo (1986–1992): Beru 657 MJ, Bosch 0 250 201 012, Champion CH70 and Lucas/CAV DS052.

How much oil does the Land Rover Range Rover Classic 2.4 Turbo take?

The Land Rover Range Rover Classic 2.4 Turbo (1986–1992) takes 6.0 litres of engine oil with the filter. A listed engine oil option is SAE 5W-30 for cold climates, with API/ACEA classification CF/B2. A listed engine oil option is SAE 15W-40 for moderate climates, with API/ACEA classification CF/B2. A listed engine oil option is SAE 10W-40 as an alternative for moderate climates, with API/ACEA classification CF/B2. A listed engine oil option is SAE 20W-50 for hot climates, with API/ACEA classification CF/B2.

What are the valve clearances for the Land Rover Range Rover Classic 2.4 Turbo?

Valve clearances for the Land Rover Range Rover Classic 2.4 Turbo (1986–1992) are 0,30 mm inlet and 0,30 mm exhaust, measured cold.

What is the minimum brake disc thickness for the Land Rover Range Rover Classic 2.4 Turbo?

Brake discs on the Land Rover Range Rover Classic 2.4 Turbo (1986–1992) are replaced at a minimum thickness of 12 mm (solid) or 22 mm (ventilated) front and 11,7 mm rear.

What battery does the Land Rover Range Rover Classic 2.4 Turbo use?

The Land Rover Range Rover Classic 2.4 Turbo (1986–1992) uses a 12 V, 45 Ah battery (reserve capacity 65 minutes).