oil type LAND ROVER DISCOVERY 2002 User Guide

GENERAL DATA
04-15
Suspension
* Measurement taken with vehicle at unladen weight.
Type - Front Beam axle with coil springs, longitudinal radius arms,
Panhard rod, twin tube dampers and either anti-roll
bar or active cornering enhancement (ACE)
Nominal height from hub centre to wheel arch (not liner)* 500 ± 15 mm (19.7 ± 0.6 in)
Front road spring colour codes:

V8 LHS Pink/orange

V8 RHS - LHD Pink/orange

V8 RHS - RHD White/purple

Td5 LHS White/purple

Td5 RHS - LHD White/purple

Td5 RHS - RHD White/purple
Rear road spring colour codes:
5 seat, LHS Purple
5 seat, RHS - LHD Purple
5 seat, RHS - RHD Purple/purple
7 seat, LHS - LHD Grey/blue
7 seat, LHS - RHD Grey/green
7 seat, RHS - LHD Grey/blue
7 seat, RHS - RHD Grey/white
Bump stop height (top of bump stop to axle bracket) 44.5 mm (1.75 in)
Anti-roll bar diameter - front

With ACE fitted 35 mm (1.38 in)

Without ACE 30 mm (1.18 in)
Type - Rear Beam axle with coil or air springs, longitudinal radius
arms, Watts linkage, twin tube dampers and either
anti-roll bar or active cornering enhancement (ACE)
Nominal height from hub centre to wheel arch (not liner):*

Coil spring 483 ± 15 mm (19.0 ± 0.6 in)

Air spring 473 ± 15 mm (18.6 ± 0.6 in)
Road spring colour code Purple (all models)
Bump stop height (top of bump stop to axle bracket):

Coil spring 71.5 mm (2.8 in)

Air spring 61.5 mm (2.4 in)
Anti-roll bar diameter - rear

With ACE fitted 35 mm (1.38 in)

Without ACE - SLS fitted 29 mm (1.14 in)

Without ACE - SLS not fitted 5 seats = 19 mm (0.75 in)
7 seats = 16 mm (0.63 in)

GENERAL DATA
04-17
Air conditioning
Electrical - Td5
Electrical - V8
Type CFC free, sealed closed loop
Compressor:

Displacement 177.7 cm
3/rev (10.84 in3/rev)

Relief valve operating pressure 34.3 to 41.4 bar (497 to 600 lbf.in
2)

Refrigerant oil quantity 180ml (6.3 fl.oz)
Dual pressure switch operating pressures (nominal):

Low pressure switch Opens 2.0 bar (29.0 lbf.in
2), pressure decreasing

Low pressure switch Closes 2.3 bar (33.4 lbf.in
2), pressure increasing

High pressure switch Opens 32 bar (464 lbf.in
2), pressure increasing

High pressure switch Closes 26 bar (377 lbf.in
2), pressure decreasing
System 12 volt, negative earth
Battery:

Type Delco Freedom

Capacity 110 amp hour
Alternator:

Type Nippon Denso

Maximum output 120 amp
Starter motor:

Type Nippon Denso

Power 2 kW
System 12 volt, negative earth
Battery:

Type Delco Freedom

Capacity 72 amp hour
Alternator:

Type Bosch NC65/130

Maximum output 130 amp
Starter motor

Type Nippon Denso

Power 1.8 kW

LIFTING AND TOWING
08-2
Reverse procedure when removing vehicle from
stands.
Hydraulic ramps
Use only a 'drive on' type ramp which supports a
vehicle by it's own road wheels. If a 'wheel free'
condition is required, use a 'drive on' ramp
incorporating a 'wheel free' system that supports
under axle casings. Alternatively, place vehicle on a
firm, flat floor and support on axle stands.
TOWING
Towing
The vehicle has permanent four wheel drive. The
following towing instructions must be adhered
to:
Towing on 4 wheels with driver
Turn ignition key to position '1' to release steering
lock.
Select neutral in main gearbox and transfer gearbox.
Secure tow rope, chain or cable to towing eye.
Release the handbrake.
The brake servo and power assisted steering
system will not be functional without the engine
running. Greater pedal pressure will be required
to apply the brakes, the steering system will
require greater effort to turn the front road
wheels. The vehicle tow connection should be
used only in normal road conditions, 'snatch'
recovery should be avoided.Suspended tow
To prevent vehicle damage, front or rear
propeller shaft MUST BE removed, dependent
upon which axle is being trailed.
Mark propeller shaft drive flanges at transfer box and
axles with identification lines to enable the propeller
shaft to be refitted in its original position.
Remove the propeller shaft fixings, remove the shaft
from the vehicle.
If the front axle is to be trailed turn ignition key to
position '1' to release steering lock.
The steering wheel and/or linkage must be
secured in a straight ahead position. DO NOT use
the steering lock mechanism for this purpose.
Towing eyes
The towing eyes at the front and rear of the vehicle
are designed for vehicle recovery purposes only and
must NOT be used to tow a trailer or caravan.
Front:A single towing eye, set behind a removable
panel in the front spoiler. DO NOT use the front
lashing rings for towing.

CAPACITIES, FLUIDS AND LUBRICANTS
09-2
Refrigerant - A/C system
Fluids
Anti-freeze
Use Havoline Extended Life Coolant (XLC), or any
ethylene glycol based anti-freeze (containing no
methanol) with only Organic Acid Technology
corrosion inhibitors, to protect the cooling system
CAUTION: No other anti-freeze should be used
with Havoline Extended Life Coolant.
The cooling system should be drained, flushed and
refilled with the correct amount of anti-freeze solution
at the intervals given on the Service Maintenance
Check Sheet.
After filling with anti-freeze solution, attach a warning
label to a prominent position on the vehicle stating
the type of anti-freeze contained in the cooling
system to ensure that the correct type is used for
topping-up.
Brake/Clutch fluid
Use only DOT 4 brake fluid.
PAS/ACE fluid
Use Texaco cold climate power assisted steering
fluid 14315.
Air conditioning
Use only refrigerant R134a.
Refrigerant oil
Use only NipponDenso ND-oil 8 or Unipart ND-oil 8.
Refrigerant oil absorbs water and must not be stored
for long periods. Do not pour unused oil back into the
container.
NOTE: The total quantity of refrigerant oil in the
system is 180 ml.
CAUTION: Do not use any other type of
refrigerant oil.

Refill3.4 pt

Fill from dry 3.6 pt
Cooling system - V8 Engine:

Refill24.2 pt

Fill from dry 26.2 ptComponent US Units

Front A/C 700 ± 25 g

Front/rear A/C 900 ± 25 g

MAINTENANCE
PROCEDURES 10-15
Centrifuge rotor – diesel engine
Replace
1.Replace centrifuge rotor.

+ ENGINE - Td5, REPAIRS, Rotor -
centrifuge.
Engine oil filter - diesel engine
Replace
1.Replace oil filter.

+ ENGINE - Td5, REPAIRS, Filter - oil.
Engine oil filter – V8 engine
WARNING: Avoid excessive skin contact with
used engine oil. Used engine oil contains
potentially harmful contaminants which may
cause skin cancer or other serious skin
disorders.
Replace
1.Disconnect battery.
2.Position suitable container beneath oil filter.
3.Using a strap type filter wrench, remove filter
element, discard element.
4.Smear sealing ring of replacement filter
element with engine oil.
5.Fit filter element, tighten two thirds of a turn by
hand or to 17 Nm (13 lbf.ft).
6.Top-up engine with recommended grade of oil
to correct mark on dipstick.

+ CAPACITIES, FLUIDS AND
LUBRICANTS, Lubrication.
7.Connect battery.
8.Run engine and check for oil leaks from filter.
9.Stop engine, wait for oil to return to sump.
10.Re-check oil level and top-up if necessary.

ENGINE - TD5
12-1-16 DESCRIPTION AND OPERATION
Oil filters
The Td5 engine features two types of oil filter; the main filter is a standard disposable cartridge-type full-flow oil filter
which is augmented with a by-pass centrifuge filter used to filter out particulate matter having a diameter smaller than
15 micron but greater than 3 micron.
1Centre spindle
2Spindle oil holes (2 off)
3Centrifuge filter housing
4Centrifuge filter drain pipe
5Port – centrifuge filter drain pipe to sump6Filter rotor
7Internal seal
8Cover
9Cover bolts (2 off)
The centrifuge filter is located on the left hand side of the engine block by the exhaust manifold and is housed in a pot
which is bolted to the oil cooler housing by means of three bolts. The pot contains a rotor located on a central spindle
which spins at up to 15,000 revs/min. when oil is flowing through the unit under pressure. The rotor contains two fine
holes drilled at obtuse angles which cause the rotor to spin about the centre spindle when high pressure oil is passing
through it. The inner surface of the rotor captures carbon deposits and small particulate matter as it is thrown outwards
under centrifugal force to form a sludge on the inner walls of the rotor. The unit is able to trap very fine impurities that
build up in the oil that would be too small to filter using the normal paper-element type full-flow filters alone.
Approximately 10% of the total oil flow enters the centrifuge pot through a side port in the pot casting which is mated
to an outlet port at the lower side of the oil cooler housing. A rubber O-ring sits in a recess around the oil cooler port
which seals the faces between the centrifuge pot and oil cooler port, and it must be replaced every time the centrifuge
assembly is removed. Oil leaves the centrifuge pot through a drain tube which is attached to the base of the pot by
means of two fixing screws. The lower end of the drain tube returns oil to the sump and is fixed to the sump by means
of two screws. Gaskets are included at the port interfaces between the oil drain tube and the centrifuge pot, and the
oil drain tube and sump return port; these gaskets must be replaced every time the oil drain tube is removed.
The centrifuge cover is fixed to the pot by two screws and is sealed by an 'O'-ring.

ENGINE - TD5
DESCRIPTION AND OPERATION 12-1-17
1Full-flow filter housing
2Thermostat
3Roll-pin
4Port – feed line to turbocharger
5Outlet port from full-flow filter (> 74
° C)
6Inlet port to full-flow filter
7Outlet port from full-flow filter (< 74
° C)
The main filter is a conventional full-flow cartridge-type filter containing a paper element able to trap particles greater
than 15 micron (0.015 mm) in diameter.
The cartridge is screwed to an adaptor casting by way of a hollow brass threaded insert which connects the filter outlet
port to the adaptor casting. A sealing ring seals the union between the oil filter cartridge and the adaptor casting.

ENGINE - TD5
DESCRIPTION AND OPERATION 12-1-19
Oil Pressure switch
The oil pressure switch is located in a port on the outlet side of the oil cooler housing. It detects when a safe operating
pressure has been reached during engine starting and initiates the illumination of a warning light in the instrument
pack if the pressure drops below a given value.
Crankshaft, sump and oil pump components
The crankshaft, sump and oil pump components are described below:
Sump
The sump is a wet-type, of aluminium construction and is sealed to the engine block by means of a rubber gasket and
twenty fixing bolts. The four bolts at the gearbox end of the sump are longer than the other sixteen bolts.
The sump gasket incorporates compression limiters (integrated metal sleeves) at the bolt holes, which are included
to prevent distortion of the gasket when the sump to cylinder block bolts are being tightened.
The oil drain plug is fitted at the bottom of the oil sump reservoir. An oil return drain pipe is also attached to the oil
sump which returns oil from the centrifugal filter.
Stiffener Plate
The stiffener plate assembly provides lower engine block rigidity and utilises dowels to align it to the bottom of the
cylinder block. A rotary oil pump is integral with the stiffener plate and an oil pick-up and strainer assembly is fitted
to the underside of the stiffener plate. The stiffener and oil pump assembly is secured to the cylinder block by 22 bolts.

ENGINE - TD5
12-1-20 DESCRIPTION AND OPERATION
Oil pump
1Stiffener plate
2Ring dowel
3Outlet port
4Outer rotor
5Inner rotor6Spring dowel
7Oil pressure relief valve cap
8Oil pressure relief valve spring
9Oil pressure relief valve plunger
10Inlet port
The eccentric rotor oil pump is integrated with the stiffener plate and contains no serviceable parts except for the
pressure relief valve spring. The oil pump drive sprocket is attached to the front of the stiffener plate and is driven
through a chain and sprocket system.
A pressure relief valve is included at the outlet side of the oil pump to restrict oil pressure at high engine speeds by
recirculating oil through the relief valve back around the pump to the inlet. The relief valve and spring is a plunger type.
When oil pressure is great enough to lift the plunger, oil is allowed to escape past the plunger to relieve pressure and
prevent further rise.
Oil is delivered to the pump from the pick-up through a channel in the stiffener plate. The outlet side of the oil pump
delivers pressurised oil flow to the engine block main oil delivery gallery through a port in the stiffener plate.
Piston lubrication jets
Piston lubrication jets are fitted to the cylinder block to provide lubrication to the cylinder walls, and to the piston
underskirt for cooling the pistons and lubricating the gudgeon pins. The input port to each lubrication jet mates with a
port provided in each mounting position tapped at the underside of the cylinder block from the main oil delivery gallery.
When oil pressure is sufficient to supply flow through the jets, oil is squirted to the inside of the cylinder walls to provide
piston to wall lubrication and cooling and to the underside of the piston skirt at the bottom of the piston stroke (gallery
cooled piston). The squirt jets also provide splash feed lubrication supply to the small end bearings of the connecting
rods.
Each lubrication jet is fixed to a mounting position on the underside of the engine block by a single Torx screw.
Chain lubrication jet
A chain lubrication jet is located on the front face of the cylinder block, behind the front engine timing chain cover. The
inlet port to the lubrication jet mates with an oil supply port from the cylinder block main oil delivery gallery. The
lubrication jet is fixed to the front of the engine block by a single screw. Additional chain lubrication is provided by oil
supply through a small aperture tapped from the cylinder head oil delivery gallery.

ENGINE - TD5
DESCRIPTION AND OPERATION 12-1-21
Crankshaft
1Front end to crankshaft sprocket
2Oil supply cross-drillings
3Main journals
4Big-end journals
5Rear end to flywheel
The crankshaft is constructed from cast iron and is surface-hardened. The areas between the crankshaft journals and
the adjoining webs and balance weights are compressed using the cold roll process to form journal fillets.
Cross-drillings in the crankshaft between adjoining main and big-end bearings are used to divert lubrication oil to the
big-end bearings.
A torsional vibration damper is attached to the crankshaft pulley by three bolts.
The crankshaft is carried in six main bearings, with end-float being controlled by thrust washers positioned on both
sides of No. 3 main bearing.
Main bearings
There are six main bearings used to carry the crankshaft. Each of the bearing caps are of cast iron construction and
are attached to the cylinder block by two bolts.
The bearing shells are of the split cylindrical type. The upper half bearing shells are grooved to facilitate the supply of
lubrication oil to the bearings and fit into a recess in the underside of the cylinder block. The lower half bearing shells
are smooth and fit into the bearing caps.
Steel-backed thrust washers are included at each side of No. 3 main bearing to control crankshaft end-float. One side
of each of the thrust washers is grooved, the grooved side of each of the thrust washers is fitted facing outward from
No. 3 main bearing.
Cylinder head components
The cylinder head components are described below:
Cylinder head
The cylinder head is of aluminium construction. It is not possible to reface the cylinder head if it becomes worn or
damaged. An alloy camshaft carrier is bolted directly to the upper surface of the cylinder head. Two dowels are
included in the cylinder head upper face for correct location of the camshaft carrier.
The EU3 cylinder head has a single internal fuel rail for delivering fuel to the injectors and an external fuel pipe for
returning spill fuel back to the fuel connector block. Therefore, pre EU3 and EU3 model cylinder heads are not
interchangeable.
CAUTION: The cylinder head incorporates drillings for the fuel injection system, any contamination which
enters these drillings could cause engine running problems or injector failure. It is therefore, essential that
absolute cleanliness is maintained when carrying out work on the cylinder head.