radiator LAND ROVER DEFENDER 1996 Workshop Manual

04GENERAL SPECIFICATION DATA
2
INFORMATION Camshaft
Drive 30 mm wide dry toothed belt.................................................................................
Location Right hand side (thrust side)...........................................................................
End float 0,1 - 0,2 mm...........................................................................
Number of bearings 4..........................................................
Material Steel shell, white metal lined............................................................................
Valves
Tappet clearance:
- Inlet and exhaust 0,20 mm...................................................
Seat angle:
- Inlet 30° .......................................................................
- Exhaust 45° .................................................................
Head diameter:
- Inlet 38,75 - 39,05 mm.......................................................................
- Exhaust 36,35 - 36,65 mm.................................................................
Stem diameter:
- Inlet 7,960 - 7,975 mm.......................................................................
- Exhaust 7,940 - 7,960 mm.................................................................
Valve lift:
- Inlet 9,67 mm.......................................................................
- Exhaust 9,97 mm.................................................................
Cam lift:
- Inlet 6,81 mm.......................................................................
- Exhaust 7,06 mm.................................................................
Valve head stand down:
- Inlet 0,81 - 1,09 mm.......................................................................
- Exhaust 0,86 - 1,14 mm.................................................................
Valve springs
Type Single coil.................................................................................
Length, free 46,28 mm......................................................................
Length, under 21 kg load 40,30 mm.................................................
Lubrication
System Wet sump, pressure fed.............................................................................
Pressure, engine warm at normal operating speeds 1,76 - 3,87Kgf/cm
2(25 - 55 Ibf/in2) ........
Oil pump:
- Type G-rotor integral with front cover.......................................................................
- Drive off crankshaft nose.....................................................................
Oil pressure relief valve Non-adjustable....................................................
Relief valve spring:
- Full length 51,6mm......................................................................
- Compressed length at 7.71Kg load 31mm................................
Oil filter Screw-on disposable canister.............................................................................
Engine oil cooler Combined with coolant radiator and intercooler...............................................................

GENERAL SPECIFICATION DATA
3
INFORMATION FUEL SYSTEM
Fuel lift pump type Mechanical with hand primer............................................................
Fuel lift pump pressure 42 - 55 Kgf/cm
2(3 - 4 lbf/in2) at 1800 rpm .....................................................
Fuel filter Paper element in disposable canister..........................................................................
Air cleaner Paper element type........................................................................
COOLING SYSTEM
System type Pressurised, spill return, thermostatically controlled.....................................................................
water and anti freeze mixture. Pump assisted thermo
syphon. Coolant radiator combined with oil cooler and
turbo intercooler.
Cooling fan 11 blade axial flow 433 mm diameter, 1.29:1 drive.......................................................................
ratio, with viscous coupling.
Pump type Centrifugal, impellor, belt driven........................................................................
Thermostat opening 88°C .........................................................
Expansion tank cap pressure 1,06 Kgf/cm
2(15 Ibf/in2) (system pressure) ...........................................
CLUTCH
Type Valeo diaphragm spring.................................................................................
Centre plate diameter 235 mm.......................................................
Facing material Verto F202 grooved.................................................................
Release bearing Ball journal...............................................................
TRANSMISSION
Main gearbox
Type R380 Single helical constant mesh.......................................................................
Speeds 5 forward, 1 reverse, all synchromesh.............................................................................
Transfer box
Type LT230 Two speed reduction on main gearbox output. Front......................................................................
and rear drive permanently engaged via a lockable
differential
Rear axle
Type Spiral bevel, fully floating shafts.................................................................................
Ratio 3.54:1.................................................................................

LUBRICANTS, FLUIDS AND CAPACITIES
3
INFORMATION REV: 05/99 CAPACITIES
The following capacity figures are approximate and are provided as a guide only.
Capacities (approx.)* Litres Pints
Engine sump oil 5,8................................................................ 10.20
Extra when refilling after fitting new filter 0,85.......................... 1.50
Manual gearbox 2,67............................................................... 4.70
Transfer gearbox oil 2,30......................................................... 4.00
Front differential 1,70............................................................... 3.00
Rear differential 1,70................................................................ 3.00
Power steering box and reservoir LHD 2,90............................ 5.00
Power steering box and reservoir RHD 3,40............................ 6.00
Swivel pin housing oil/grease (each) 0,35................................ 0.60
Fuel tank usable fuel 79,5........................................................ 17.5 gall
Cooling system 11,50................................................................ 20.20
Washer bottle 3,0................................................................... 5.28
NOTE: * All levels must be checked by dipstick or level plugs as applicable.
ANTI-FREEZE
PERCENTAGE CONCENTRATION - 50%
PROTECTION - LOWER TEMPERATURE LIMIT
Complete protection
Vehicle may be driven away immediately from cold,
-33°C (-36°F).
Safe limit protection
Coolant in semi-frozen state. Engine may be started
and driven away after warm-up period, -41°C (-42°
F).Lower protection
Prevents frost damage to cylinder head, block and
radiator. Thaw out before starting engine, -47°C (-53°
F).
CAUTION: Anti-freeze content must never
be allowed to fall below 25% (pre 99MY) or
50% (99MY on) otherwise damage to the
engine is liable to occur. Anti-freeze content
should not exceed 60% (all models) as this will
greatly reduce cooling efficiency.

MAINTENANCE
3
MAINTENANCE UNDER BONNET MAINTENANCE
UNDER BONNET COMPONENTS
A - RH drive
1.Brake fluid reservoir
2.Clutch fluid reservoir
3.Air cleaner element
4.Engine breather filter
5.Oil filler cap
6.Oil level dipstick
7.Heater/air conditioning unit
8.Windscreen washer reservoir
9.Power steering pump reservoir10.Intercooler and hoses
11.Radiator filler plug
12.Radiator
13.Oil cooler
14.Fuel filter
15.Accelerator linkage
16.Expansion tank
17.Air cleaner dump valve

10MAINTENANCE
4
MAINTENANCE
UNDER BONNET COMPONENTS
B - LH drive
1.Brake fluid reservoir
2.Clutch fluid reservoir
3.Air cleaner element
4.Engine breather filter
5.Oil filler cap
6.Oil level dipstick
7.Heater/air conditioning unit
8.Windscreen washer reservoir
9.Power steering pump reservoir10.Intercooler and hoses
11.Radiator filler plug
12.Radiator
13.Oil cooler
14.Fuel filter
15.Accelerator linkage
16.Expansion tank
17.Air cleaner dump valve

MAINTENANCE
5
MAINTENANCE REV: 05/99 CHECK COOLING, INTERCOOLING AND HEATING
SYSTEMS
Check cooling, and heater systems for leaks and
pipes/hoses for security and condition. Refill or top up
as necessary.
CAUTION: It is important that the correct
procedure is followed when refilling or
topping up the cooling system to avoid
trapping air in the system.
WARNING: Do not remove caps and plugs
when engine is hot because cooling
system is pressurised and personal
scalding could result.
1.Remove plastic plugs from thermostat housing
and radiator.
2.Fill cooling system with correct concentration
and specification of anti-freeze.
See
LUBRICANTS, FLUIDS AND CAPACITIES,
Information, Recommended lubricants and
fluids
3.Fill from expansion tank until radiator is full, with
level in expansion tank the same as in radiator.
NOTE: Care should be taken to avoid
excess coolant spillage from radiator.
4.Fit plastic plug in radiator.
5.Add a further 1 litre (1.76 pints) of coolant to
expansion tank and allow to settle.
6.Refit expansion tank cap and thermostat
housing plug.
7.Run engine at idle speed for five minutes.
8.Switch off engine, check that expansion tank
coolant is level with top of indicator post and top
up as necessary.Check intercooler and turbo-charger system for air
leaks and pipes/hoses for security and condition.
All system hoses should be renewed at first signs of
deterioration.
VALVE CLEARANCES - CHECK/ADJUST
Check/adjust valve clearances.
See ENGINE ,
Adjustment, Valve clearances - check and adjust
RENEW FUEL FILTER ELEMENT
Remove
1.Clean area around filter head and position a
container beneath.
2.Unscrew and remove filter, catch fuel released.
Refit
3.Wet seal of new filter with fuel.
4.Screw new filter into position.
5.Ensure drain tap is fully closed.

10MAINTENANCE
8
MAINTENANCE CHECK/TOP UP BRAKE FLUID RESERVOIR
WARNING: DO NOT drive the vehicle with
the fluid level below 'MIN' mark.
Brake fluid will damage painted surfaces; clean up
any spillage immediately and rinse with plenty of
water.
If brake fluid should come into contact with skin
or eyes, rinse immediately with plenty of water.
1.Check the fluid level visually through transparent
side of reservoir without removing cap.
2.If level is below 'MAX' mark clean and remove
reservoir cap.
3.Top up to 'MAX' mark with recommended brake
fluid
See LUBRICANTS, FLUIDS AND
CAPACITIES, Information, Recommended
lubricants and fluids
CHECK/TOP UP WASHER RESERVOIR
Top up washer reservoir to within 25 mm (1.0 in) of
filler neck. Use a screen washer solvent/anti-freeze
solution to assist removing mud, flies, and road film
and protect against freezing.
LUBRICATE ACCELERATOR LINKAGES
Lubricate accelerator cable at adjustment ferrule and
linkage with injector pump and at pedal clevis pin.CHECK/ADJUST ENGINE IDLE SPEED
Check/adjust low and high engine idle speed with
engine at normal running temperature.
See FUEL
SYSTEM, Adjustment, low and high idle speed
adjustment
CHECK/ADJUST STEERING BOX
Check steering box and pipes/hoses for fluid leaks.
Check that there is no backlash in steering box when
in straight ahead position. Adjust steering box if
necessary.
See STEERING, Adjustment, Power
steering box
VISUALLY CHECK INTERCOOLER/RADIATOR
FOR EXTERNAL OBSTRUCTIONS
Check intercooler/radiator for external obstructions. If
necessary, apply air pressure to engine side of matrix
to clear obstruction. If mud or dirt is evident, carefully
use a hose to wash away obstruction.
FLUSH DIESEL INTERCOOLER
Remove
1.Remove intercooler matrix.
See FUEL
SYSTEM, Repair, Intercooler
2.Flush matrix with ICI 'GENKLENE' proprietary
cleaner, following manufacturers instructions.
3.Dry intercooler completely ensuring that no liquid
remains in matrix.
Refit
4.Refit intercooler matrix.
See FUEL SYSTEM,
Repair, Intercooler

ENGINE
3
REPAIR ENGINE
Service repair no - 12.41.01
Remove
NOTE: A chassis undertray may be fitted
on some vehicle derivatives to conform to
legal requirements. When under chassis
remove and refit procedures are required, it may
be necessary to remove the undertray and/or
integral access panels.
See CHASSIS AND BODY, Repair, Front
undertray
orSee CHASSIS AND BODY, Repair,
Rear undertray
CAUTION: Seal all exposed pipe ends
against ingress of dirt after disconnection.
1.Ensure vehicle is level and apply park brake.
2.Disconnect battery.
NOTE: The vehicle may be fitted with an
alarm and immobilisation system using a
battery backed-up alarm sounder.
See ELECTRICAL, Repair, battery
3.Remove bonnet.
4.Remove cable ties securing gearbox harness to
breather pipes.
5.Disconnect harness from diff lock and reverse
light switches.
6.Manouvre harness into engine bay.
7.Remove air cleaner.
See FUEL SYSTEM,
Repair, Air cleaner
8.Remove radiator assembly.See COOLING
SYSTEM, Repair, Radiator
If air conditioning is fitted the condenser will
have to be removed, compressor pipes and
heater matrix hoses disconnected.
See AIR CONDITIONING, Repair, Condenser
9.Remove rocker cover insulation.
10.Remove feed pipe/hose from turbo-charger and
intercooler.
11.Disconnect heater hoses from cylinder head and
heater rails.
12.Disconnect electrical feed plug at rear of cylinder
head.
13.Disconnect heater plug feed wire.

12ENGINE
6
REPAIR 42.Raise engine, and locate front engine mountings
to chassis.
43.Remove gearbox support and lower engine.
44.Tighten front engine mounting to chassis fixings
to
45 Nm (33 lbf/ft).
45.Release chains from engine lifting brackets and
remove hoist.
46.Connect oil cooler pipes to oil filter adaptor.
47.Fit vacuum hose to brake servo adaptor.
48.Secure fuel feed pipe in retaining clip on air
cleaner bracket.
49.Fit fuel lift pump pipes.
50.Connect feed and spill return pipes to injector
pump.
51.If fitted, reconnect hand throttle cable to
mounting bracket and injector pump.
52.Fit outer cable adjusting nut into injector pump
mounting bracket.
53.Fit inner throttle cable to injector pump and
secure with clevis and split pin.
54.Secure bleed hose in retaining clips on front
timing cover.
55.Fit bleed hose to thermostat housing.
56.Connect inlet and outlet hoses to power steering
pump.
57.Fit down pipe to exhaust manifold and secure
with 3 nuts.
58.Connect starter motor battery and fuse box
leads.
59.If fitted, connect EGR valve multi-plug and
vacuum pipe.
60.Secure breather pipe clip to cylinder head.
61.Connect engine harness multi-plug.
62.Fit heater plug feed wire.
63.Connect electrical feed plug at rear of cylinder
head.
64.Fit heater hoses to cylinder head and heater
rails.
65.Fit feed pipe/hose to turbo-charger and
intercooler.
66.Fit rocker cover insulation.
67.Fit radiator assembly.
See COOLING SYSTEM,
Repair, Radiator
If applicable, fit air
conditioning condenser, compressor pipes and
heater matrix hoses.
See AIR CONDITIONING,
Repair, Condenser
68.Fit bonnet.
69.Reconnect battery.CRANKSHAFT PULLEY
Service repair no - 12.21.01
Remove
1.Disconnect battery.
2.Drain coolant.
See COOLING SYSTEM,
Repair, Drain and refill cooling system
3.Remove top hose from radiator.
4.Remove intercooler to induction manifold hose.
5.Remove viscous coupling and fan.
See
COOLING SYSTEM, Repair, Viscous
coupling and fan
6.Remove fan cowl.See COOLING SYSTEM,
Repair, Fan cowl
7.Remove drive belt.See ELECTRICAL, Repair,
Auxiliary drive belt
8.Fit crankshaft pulley retainerLRT-12-080and
secure with 4 bolts.
9.Remove crankshaft pulley retaining bolt
anti-clockwise using socket and suitable long
bar.
10.Remove pulley retainer.
11.Remove pulley, if necessary using extractor
LRT-12-049with thrust pad fromLRT-12-031.

ENGINE
7
REPAIR Refit
12.Lightly grease pulley spigot and locate pulley
onto cranshaft.
13.Fit pulley retaining bolt.
14.Fit pulley retainerLRT-12-080and secure with 4
bolts.
15.Tighten pulley nut to
80 Nm (59 lbf/ft)+90°.
16.Remove pulley retainer.
17.Fit drive belt.
See ELECTRICAL, Repair,
Auxiliary drive belt; Refit
18.Fit fan cowl.See COOLING SYSTEM, Repair,
Fan cowl
19.Fit viscous coupling and fan.See COOLING
SYSTEM, Repair, Viscous coupling and fan
20.Fit intercooler to induction manifold hose.
21.Fit radiator top hose.
22.Refill cooling system.
See COOLING SYSTEM,
Repair, Drain and refill cooling system
23.Reconnect battery.FRONT COVER PLATE AND SEAL
Service repair no - 12.65.01
Remove
1.Disconnect battery.
2.Drain coolant.
See COOLING SYSTEM,
Repair, Drain and refill cooling system
3.Remove top hose from radiator.
4.Remove intercooler to induction manifold hose.
5.Remove viscous coupling and fan.
See
COOLING SYSTEM, Repair, Viscous
coupling and fan
6.Remove fan cowl.See COOLING SYSTEM,
Repair, Fan cowl
7.Remove drive belt.See ELECTRICAL, Repair,
Auxiliary drive belt
8.Remove crankshaft pulley.See Crankshaft
pulley
9.Remove 14 bolts securing front cover plate. Note
that top 2 bolts also retain thermostat hose clips.
10.Remove cover plate complete with gasket.
11.Remove small gasket from centre bolt boss.
Seal replacement
12.Remove worn seal from cover and clean recess.
13.Support cover and fit new seal, open side fitted
into recess, using special toolLRT-12-077.