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Land Rover   ·   1973–1979

Range Rover Classic 3.5: Technical specifications

Technical specifications (1973–1979)

The Land Rover Range Rover Classic (73-95) 3.5 is the 3.5-litre petrol variant, engine code C,D,E, built from 1973 to 1979. Quick answers and key figures below, then the full workshop tables.

Updated

Engine codeC,D,E
Power116 kW (158 hp)@ 5000 rpm
FuelPetrol
Cylinders8
Oil capacity5,7litres · with the filter

Engine & identification

Vehicle identification

No. of cylinders Type8/OHV
Capacity (Fiscal) cc3528 (3470)
Compression ratio :18,25
Suitable for unleaded petrolNo
Minimum octane rating RON91
Ignition system TypeSZ
Ignition system DescriptionCB
Fuel system MakeZenith
Fuel system Type175 CD
Fuel system DescriptionCarb-VV

Ignition system

Ignition coil MakeLucas
Ignition coil Type16C6
Ignition coil supply voltage + with ballast V7,0 +
Ballast resistance Ohm1,3-1,5
Primary resistance Ohm1,43-1,58
Distributor (ECM) MakeLucas
Distributor (ECM) No.41382
Contact breaker gap/trigger air gap mm0,4
Dwell angle °(%)26-28 (58-62)

Firing order

The firing order for the Land Rover Range Rover Classic 3.5 (1973–1979) is 1-8-4-3-6-5-7-2.

Firing order1-8-4-3-6-5-7-2

Valve clearances

Valve clearances on the Land Rover Range Rover Classic 3.5 (1973–1979) are hydraulic — they self-adjust, so no manual clearance figure applies.

Valve clearance - INLET mmHydraulic
Valve clearance - EXHAUST mmHydraulic

Engine oil & fluids

Engine oil

The Land Rover Range Rover Classic 3.5 (1973–1979) takes 5.7 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 2.6 litres.

Coolant

The listed total cooling-system capacity is 11.3 litres.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
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 5.7
Other lubricants and capacities
Manual transmission litres 2.6
Automatic transmission (drain & refill) litres 5.0
Differential front/AT litres 1.7
Differential rear litres 2.3
Cooling system - total capacity litres 11.3

Service & electrical

Ignition timing

Basic ignition timing for the Land Rover Range Rover Classic 3.5 (1973–1979) is 5° BTDC at 750-850 rpm.

Ignition timingWith vacuum
Ignition timing - basic BTDC °Engine/rpm5/750-850

Battery

The Land Rover Range Rover Classic 3.5 (1973–1979) uses a 12 V, 50 Ah battery (reserve capacity 90 minutes).

Battery V/RC(Ah)12/90 (50)

Spark plugs

The Land Rover Range Rover Classic 3.5 (1973–1979) uses Autolite 64 spark plugs with a 0,6 mm electrode gap.

Spark plugs Original equipmentChampion
Spark plug TypeL92YC 1976-=RN9YC
Electrode gap mm0,6 RN9YC=0,8
Spark plugs MakeAutolite
Spark plug Type64
Electrode gap mm0,6
Spark plugs MakeBosch
Spark plug TypeW8DC 1976-=W8BC
Electrode gap mm0,6
Spark plugs MakeChampion
Spark plug TypeL92YC 1976-=RN9YC
Electrode gap mm0,6 RN9YC=0,8
Spark plugs MakeNGK
Spark plug TypeBP5HS 1976-=BP5ES
Electrode gap mm0,6

Tuning and emissions

Ignition advanceWithout vacuum and basic timing
Ignition advance checks °Engine/rpm0-4/1400
Ignition advance checks °Engine/rpm17-21/3800
Ignition advance checks °Engine/rpm22-26/4800
Vacuum checkIgnition timing advances
Vacuum range °Engine18-20
Vacuum starts mbar134
Vacuum ends mbar765
Idle speed rpm750-850
Fast idle speed - MT/AT rpm1150-1250
Oil temperature °C60
CO level at idle speed - tailpipe Vol. % CO3,0-4,5
HC level at idle speed ppm500
CO2 level at idle speed Vol. % CO213-16
O2 level at idle speed Vol. % O20,5-2,0

Starting and charging

Starter motor MakeLucas
Starter motor Type3M100/M45
Minimum starting voltage V10,5
Maximum cranking amps A162-198
Alternator MakeLucas
Alternator Type16ARC
Alternator output A/V/rpm34/14/2500
Voltage regulator Type8TR
Regulated voltage V14,1-14,5

Service checks and adjustments

Oil pressure bar/rpm2,1-2,8/2400
Radiator cap bar1,00
Thermostat opens °C78-83
Drive belt size - alternator mm9,5x1250
Drive belt tension - alternator/PAS/AC mm10-15

Fuel system

Fuel pump delivery pressure bar0,25-0,35

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Land Rover Range Rover Classic 3.5 (1973–1979) are tightened in 3 stages: 40-50 Nm, then 60-70 Nm, then a final 88-95 Nm.

Cylinder head
Tighten40-50 Nm
Tighten60-70 Nm
Tighten88-95 Nm
Cylinder head instructions—
Other engine tightening torques
Main bearings Stage 1—
Main bearings
Big end bearings Stage 122 Nm
Big end bearings Stage 245 Nm
Flywheel/driveplate80 Nm
Crankshaft pulley/damper centre bolt208 Nm
Chassis tightening torques
Road wheels110 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 Range Rover Classic 3.5?

The firing order for the Land Rover Range Rover Classic 3.5 (1973–1979) is 1-8-4-3-6-5-7-2.

What spark plugs does the Land Rover Range Rover Classic 3.5 use?

The Land Rover Range Rover Classic 3.5 (1973–1979) uses Autolite 64 spark plugs with a 0,6 mm electrode gap.

How much oil does the Land Rover Range Rover Classic 3.5 take?

The Land Rover Range Rover Classic 3.5 (1973–1979) takes 5.7 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 Range Rover Classic 3.5?

Valve clearances on the Land Rover Range Rover Classic 3.5 (1973–1979) are hydraulic — they self-adjust, so no manual clearance figure applies.

What is the cylinder head torque for the Land Rover Range Rover Classic 3.5?

The cylinder head bolts on the Land Rover Range Rover Classic 3.5 (1973–1979) are tightened in 3 stages: 40-50 Nm, then 60-70 Nm, then a final 88-95 Nm.

What is the ignition timing for the Land Rover Range Rover Classic 3.5?

Basic ignition timing for the Land Rover Range Rover Classic 3.5 (1973–1979) is 5° BTDC at 750-850 rpm.