This page cover the general specifications for the 4.0 v8 engine
GENERAL SPECIFICATION DATA Engine Type 4.0 litre V8
Number of cylinders Eight, two banks of four
Bore 94.00 -94.04 mm 3.7008 -3.7024 in
Stroke 71.04 -71.20 mm 2.7966 -2.8031 in
Capacity........................................................................... 3950 ern" 241 in3
Valve operation................................................................ Overhead by push-rod
Compression ratio High Compression Low Compression
Up to 99MY 9.35:1 8.2:1
From 99MY 9.38:1 8.23:1
Maximum power (at 4750 rev/min)
Up to 99MY 140 kW 132 kW
From 99MY
All except N.A.S 136 kW 132 kW
N.A.S only 140 kW
Crankshaft
Main journal diameter 63.500 -63.487 mm 2.50 -2.4995 in
Crank-pin journal diameter 55.513 -55.500 mm 2.1856 -2.1850 in
Crankshaft end thrust/end float Taken on thrust washers of center main bearing
0.10-0.20 mm 0.004 -0.008 in
Main bearings
Number and type
Up to 99MY 5, Vandervell shells
From 99MY 5, GlacierVandervell / AS15
Material Lead bronze with lead-indium overlay
Diametrical clearance 0.010-0.048 mm 0.0004 -0.002 in
Connecting rods
Type Horizontally split big-end, plain small-end
Length between centers 155.12 -155.22 mm 6.1071 -6.1110 in
Big-end bearings
Type and material
Up to 99MY Vandervell VP Lead bronze with lead-indium overlay
From 99MY Glacier Vandervell GPL2120 / AS124A
Diametrical clearance 0.015 -0.055 mm 0.0006 -0.002 in
Piston pins
Length 60.00 -60.50 mm 2.3622 -2.3819 in
Diameter 23.995 -24.000 mm 0.9447 -0.9449 in
Fit-in connecting rod Press fit
Clearance in piston 0.015 -0.006 mm 0.00059 -0.00024 in
Pistons
Clearance in bore, measured 10 mm from
base of skirt at right angles to piston pin
Up to 99MY 0.020 -0.050 mm 0.0008 -0.0020 in
From 99MY 0.022 -0.067 mm 0.0009 -0.0026 in
Piston rings
Number of compression rings . 2
Number of oil control rings . 1
No 1 compression ring . Nitride d steel barrel faced
No 2 compression ring . Tapered spherical barrel marked 'TOP'
Width of compression rings
Bottom . 1.478 -1.49 mm 0.0582 -0.0587 in
Top
Up to 99MY 1.21 -1.23 mm 0.0476 -0.0484 in
From 99MY 1.17-1.19mm 0.0461 -0.0479 in
Compression ring gap
Bottom 0.40 -0.65 mm 0.0157 -0.0256 in
Top 0.3 -0.5 mm 0.0118 -0.0197 in
Oil control ring type
Up to 99MY Aclonoform
From 99MY 3 Piece Aeconoform
Oil control ring width 3.0 mm 0.1181 in
Oil control ring rail gap 0.38-1.40 mm 0.0150 -0.0551 in
Camshaft
Location Central
Bearings Non serviceable
Number of bearings 5
Drive Chain 9.52 mm pitch x 54 pitches.
Camshaft end float
Up to 99MY 0.076 -0.355 mm 0.003 -0.014 in
From 99MY 0.075 -0.350 mm 0.002 -0.013 in
Tappets Hydraulic self-adjusting
Valves
Length
Inlet 4.590 -4.620 in 116.59-117.35mm
Exhaust 4.590 -4.620 in 116.59 -117.35 mm
Seat angle From 99MYUp to 99MY
Inlet 45° -45° 30' 46° -46° 25'
Exhaust 45° -45° 30' 46° -46° 25'
Head diameter
Inlet 1.565 -1.575 in 39.75 -40.00 mm
Exhaust 1.3475 -1.3575 in34.227 -34.48 mm
Stem diameter
Inlet 0.3411 -0.3417 in 8.664 -8.679 mm
Exhaust 0.3406 -0.3412 in 8.651 -8.666 mm
Stem to guide clearance
Inlet 0.0010-0.0026 in 0.025 -0.066 mm .
Exhaust~ 0.0015 -0.0031 in 0.038 -0.078 mm .
Valve lift (inlet and exhaust) 0.3913 in 9.94 mm .
Valve spring length fitted
Up to 99MY 40.40 mm (1.59 in) at pressure of 29.5 kg (65 Ib)
From 99MY 40.93 mm (1.61 in) at pressure of 29.5 kg (65 Ib)
Lubrication
System type Wet sump, pressure fed
Oil pump type Crank driven rotor
Oil pressure
Up to 99MY 2.06 to 2.7 bar (30 to 40 lbf/irr') at 2400 rev/min with
engine warm
From 99MY 3.45 bar (50 lbf/in") at 2000 rev/min with engine warm
Oil filter-internal Wire screen, pump intake filter in sump
Oil filter-external Full flow, self-contained cartridge
ENGINE MANAGEMENT SYSTEM (EMS) V8
ENGINE Type:
Up to 99MY Sagem -Lucas Gems 8 hot wire system, electronically
controlled
From 99MY Bosch Motronic M5.2.1, electronically controlled
Fuel pump High pressure electrical, immersed in the fuel tank
Fuel pump delivery pressure
Up to 99MY 2.4-2.6 bar 34-37 lbf/in2
From 99MY 3.5 bar 50.75Ibf/in2
Fuel filter Bosch in-line filter 'canister' type
Mass airflow sensor
Make and type
Up to 99MY Lucas 'Hot Wire' 20AM
From 99MY Bosch EH1174 (includes air intake temperature
sensor)
Injectors
Make and type
Up to 99MY Lucas 01000
From 99MY Bosch EV6C
Electronic Control Module
Make and type
Up to 99MY Lucas GEMS 8.2
From 99MY Bosch M5.2.1
Fuel pressure regulator
Make and type
Up to 99MY Lucas 8RV
From 99MY Rochester (part of fuel pump)
Coolant temperature sensor
Make and type Lucas 8TT
Bypass air valve (Stepper motor)
Make and type
Up to 99MY Lucas 3ACM
From 99MY Bosch
Throttle position sensor
Make and type
Up to 99MY Lucas 3TP
From 99MY Bosch OKG1
Heated oxygen sensor -catalyst vehicles
Make and type
Up to 99MY Lucas 4LS
From 99MY Bosch LSH
Camshaft position sensor
Make and Land Rover part no.
Up to 99MY Honeywell ERR2261
From 99MY Lucas ERR6170
Crankshaft position sensor
Make and type
Up to 99MY Lucas 4CS
From 99MY Bosch OG6
Knock sensor
Make and type
Up to 99MY Lucas 2KS
From 99MY Bosch KS1S
Intake air temperature sensor
Make and type
Up to 99MY Lucas 1OTT
From 99MY Not applicable (combined with M.A.F sensor)
Ignition coils
Make and type
Up to 99MY Lucas 20lS2
From 99MY Bosch 0 221 503 407
Fuel temperature sensor
Make and type
Up to 99MY Lucas 6TT
From 99MY Not applicable
ENGINE TUNING DATA
ENGINE - 4.0 V8
Firing order 1-8-4-3-6-5-7-2
Cylinder Numbers Left bank Right bank 1-3-5-7 2-4-6-8
No 1 Cylinder location Pulley end of left bank
Spark plugs
Make and type
Up to 99MY Champion RN11YCC
From 99MY Champion RC11PYB4 Or Bosch Platinum
Gap Up to 99MY 0.90 -1.00 mm 0.035 -0.040 in
From 99MY 1.00 ± 0.05 mm 0.040 ± 0.002 in
NOTE: Do not attempt to adjust the gaps of RC11PYB4 spark plugs.
Valve timing Inlet Exhaust
Opens 28°BTDC 66°BBDC
Closes 77°ABDC 39°ATDC
Idle speed -controlled by Engine Management System
Up to 99MY 700 ± 20 rev/min
From 99MY 660 rev/min
Base idle setting Not adjustable (idle air control valve position checked
via Test-book)
CO at idle (vehicles without heated oxygen sensors)
Up to 99MY 1.0 -2.0 %
From 99MY 0.5 -1.0 %
Calculated Load Value (CLV) -Engine fully warm, in neutral gear, with all loads off
At Idle 2.8 to 3.8%
At 2500 rev/min 10% ± 1%
Air mass flow at sea level -Engine fully warm, in neutral gear, with all loads off
At Idle 20 ± 3 kg/hr
At 2500 rev/min 60 ± 3 kg/hr
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