04-10 LAND ROVER DISCOVERY 2002 Workshop Manual

CONTENTS
CONTENTS 1
INTRODUCTION ...................................................................................... 01-1
How To Use This Manual................................................................................................................ 01-1
Repairs and Replacements ............................................................................................................. 01-1
Specifications .................................................................................................................................. 01-2
Abbreviations and Symbols ............................................................................................................ 01-3
GENERAL INFORMATION ...................................................................... 03-1
General Precautions ....................................................................................................................... 03-1
Safety Instructions .......................................................................................................................... 03-2
Environmental Precautions ............................................................................................................. 03-3
General Fitting Instructions ............................................................................................................. 03-6
Ball and Roller Bearings ................................................................................................................. 03-7
Oil Seals.......................................................................................................................................... 03-8
Joints and Joint Faces .................................................................................................................... 03-9
Locking Devices .............................................................................................................................. 03-9
Screw Threads ................................................................................................................................ 03-10
Bolt and Nut Identification ............................................................................................................... 03-11
Flexible Pipes and Hoses ............................................................................................................... 03-13
Rolling Road Testing....................................................................................................................... 03-15
Fuel Handling Precautions .............................................................................................................. 03-16
Electrical Precautions ..................................................................................................................... 03-17
Supplementary Restraint System Precautions ............................................................................... 03-18
SRS Component Replacement Policy ............................................................................................ 03-23
Air Conditioning System Precautions .............................................................................................. 03-24
Air Conditioning Compressor Replacement .................................................................................... 03-26
Body Repairs .................................................................................................................................. 03-26
GENERAL DATA ..................................................................................... 04-1
Engine - Td5 ................................................................................................................................... 04-1
Engine - V8 ..................................................................................................................................... 04-4
Fuel system - Td5 ........................................................................................................................... 04-8
Fuel system - V8 ............................................................................................................................. 04-9
Cooling system - Td5 ...................................................................................................................... 04-9
Cooling system - V8 ........................................................................................................................ 04-10
Clutch - Td5 .................................................................................................................................... 04-10
Clutch - V8 ...................................................................................................................................... 04-11
Manual gearbox - R380 .................................................................................................................. 04-12
Transfer box - LT230SE .................................................................................................................. 04-13
Automatic gearbox - ZF4HP22/24 .................................................................................................. 04-13
Rear axle......................................................................................................................................... 04-13
Front axle ........................................................................................................................................ 04-13
Steering........................................................................................................................................... 04-14
Suspension ..................................................................................................................................... 04-15
Brakes ............................................................................................................................................. 04-16
Wheels and tyres ............................................................................................................................ 04-16
Air conditioning ............................................................................................................................... 04-17
Electrical - Td5 ................................................................................................................................ 04-17
Electrical - V8 .................................................................................................................................. 04-17
Dimensions ..................................................................................................................................... 04-18
Weights ........................................................................................................................................... 04-18

GENERAL DATA
04-10
Cooling system - V8
Clutch - Td5
Type Pressurised, spill return, thermostatically controlled water and
antifreeze mixture. Vertical flow radiator with remote header tank
and pump assisted
Cooling fans 9 blade axial flow on viscous coupling and 11 blade axial flow
electric
Electric cooling fan switching points:
For A/C system:

On When vehicle speed is 50 mph (80 km/h) or less and ambient
temperature is 28 °C (82 °F) or more

Off When vehicle speed increases to (62.5 mph (100 km/h) or
ambient temperature decreases to 25 °C (77 °F)
For engine cooling during normal running:

On 100 °C (212 °F)

Off 94.5 °C (202 °F)
For engine cooling at ignition off (to counteract heat
soak):

On If, within 10 seconds of ignition off, intake air temperature is 60 °C
(140 °F) or more and engine coolant temperature is 110 °C (230
°F) or more

Off After 10 minutes or if engine coolant temperature decreases to
100 °C (212 °F)
Coolant pump Centrifugal impeller, belt driven from crankshaft
Coolant pump drive ratio 1.293 : 1
Coolant pump output at 1000 rev/min 10 litres/min (2.64 US galls/min) at 0.7 bar (10 lbf.in
2)
Thermostat Waxstat with pressure relief valve
Thermostat operating temperature:

Initial opening 82 °C (179 °F)

Fully open 96 °C (204 °F)
Expansion tank cap relief valve - system operating
pressure1.4 bar (20 lbf.in
2)
Type Diaphragm spring, hydraulically operated with self-centering,
preloaded release bearing
Drive plate diameter 267 mm (10.5118 in)
Pressure plate diameter 267 mm (10.5118 in)
Clutch plate friction material Verto F202
Diaphragm finger height when clamped on a 8.5 mm
(0.33 in) thick gauge plate42.5 to 48.5 mm (1.673 to 1.904 in)
Diaphragm finger clearance (service limit) 1.00 mm (0.040 in)
Clutch plate thickness under 6500 N (1461 lb) axial
load:

New 8.2 to 8.8 mm (0.33 to 0.34 in)

Service limit 7.0 mm (0.27 in)