fuel cap LAND ROVER DISCOVERY 1999 Workshop Manual

GENERAL INFORMATION
03-5
Checklist
Always adhere to the following.
Electricity and heating:
lkeep doors and windows closed in the winter;
lswitch off machinery or lights when not needed;
luse energy efficient heating systems;
lswitch off computers and photocopiers when
not needed.
Fuel:
ldon't run engines unnecessarily;
lthink about whether journeys are necessary and
drive to conserve fuel.
Water:
ldon't leave taps and hose pipes running;
lmend leaks quickly, don't be wasteful.
Compressed air:
ldon't leave valves open;
lmend leaks quickly;
ldon't leave the compressor running when not
needed.
Use of environmentally damaging materials:
lcheck whether a less toxic material is available.
Handling and storage of materials:
lhave the correct facilities available for handling
liquids to prevent spillage and wastage as listed
above;
lprovide suitable locations for storage to prevent
frost damage or other deterioration.
Waste Management
One of the major ways that pollution can be reduced
is by the careful handling, storage and disposal of all
waste materials that occur on sites. Legislation
makes it illegal to dispose of waste materials other
than to licensed waste carriers and disposal sites.
This means that it is necessary to not only know what
the waste materials are, but also to have the
necessary documentation and licenses.
Handling and storage of waste
Ensure that waste materials are not poured down the
drain or onto soils. They should be stored in such a
way as to prevent the escape of the material to land,
water or air.
They must also be segregated into different types of
waste e.g. oil, metals, batteries, used vehicle
components. This will prevent any reaction between
different materials and assist in disposal.Disposal of waste
Disposal of waste materials must only be to waste
carriers who are licensed to carry those particular
waste materials and all the necessary
documentation must be completed. The waste
carrier is responsible for ensuring that the waste is
taken to the correct disposal sites.
Dispose of waste in accordance with the following
guidelines.
lFuel, hydraulic fluid, anti-freeze and oil: keep
separate and dispose of to specialist contractor.
lRefrigerant: collect in specialist equipment and
reuse.
lDetergents: safe to pour down the foul drain if
diluted.
lPaint, thinners: keep separate and dispose of
to specialist contractor.
lComponents: send back to supplier for
refurbishment, or disassemble and reuse any
suitable parts. Dispose of the remainder in
ordinary waste.
lSmall parts: reuse any suitable parts, dispose
of the remainder in ordinary waste.
lMetals: can be sold if kept separate from
general waste.
lTyres: keep separate and dispose of to
specialist contractor.
lPackaging: compact as much as possible and
dispose of in ordinary waste.
lAsbestos-containing: keep separate and
dispose of to specialist contractor.
lOily and fuel wastes (e.g. rags, used spill kit
material): keep separate and dispose of to
specialist contractor.
lAir filters: keep separate and dispose of to
specialist contractor.
lRubber/plastics: dispose of in ordinary waste.
lHoses: dispose of in ordinary waste.
lBatteries: keep separate and dispose of to
specialist contractor.
lAirbags - explosives: keep separate and
dispose of to specialist contractor.
lElectrical components: send back to supplier
for refurbishment, or disassemble and reuse
any suitable parts. Dispose of the remainder in
ordinary waste.
lElectronic components: send back to supplier
for refurbishment, or disassemble and reuse
any suitable parts. Dispose of the remainder in
ordinary waste.
lCatalysts: can be sold if kept separate from
general waste
lUsed spill-absorbing material: keep separate
and dispose of to specialist contractor.
lOffice waste: recycle paper and toner and ink
cartridges, dispose of the remainder in ordinary
waste.

GENERAL INFORMATION
03-6
General Fitting Instructions
Component removal
Whenever possible, clean components and
surrounding area before removal.
lBlank off openings exposed by component
removal.
lImmediately seal fuel, oil or hydraulic lines when
apertures are exposed; use plastic caps or
plugs to prevent loss of fluid and ingress of dirt.
lClose the open ends of oilways exposed by
component removal with tapered hardwood
plugs or conspicuous plastic plugs.
lImmediately a component is removed, place it in
a suitable container; use a separate container
for each component and its associated parts.
lClean bench and provide marking materials,
labels and containers before dismantling a
component.
Dismantling
Observe scrupulous cleanliness when dismantling
components, particularly when brake, fuel or
hydraulic system parts are being worked on. A
particle of dirt or a cloth fragment could cause a
serious malfunction if trapped in these systems.
lBlow out all tapped holes, crevices, oilways and
fluid passages with an air line. Ensure that any
'O' rings used for sealing are correctly replaced
or renewed, if disturbed during the process.
lUse marking ink to identify mating parts and
ensure correct reassembly. Do not use a centre
punch or scriber to mark parts, they could
initiate cracks or distortion in marked
components.
lWire together mating parts where necessary to
prevent accidental interchange (e.g. roller
bearing components).
lWire labels on to all parts which are to be
renewed, and to parts requiring further
inspection before being passed for reassembly;
place these parts in separate containers from
those containing parts for rebuild.
lDo not discard a part due for renewal until after
comparing it with a new part, to ensure that its
correct replacement has been obtained.Cleaning components
Always use the recommended cleaning agent or
equivalent. Ensure that adequate ventilation is
provided when volatile degreasing agents are being
used. Do not use degreasing equipment for
components containing items which could be
damaged by the use of this process.
General inspection
All components should be inspected for wear or
damage before being reassembled.
lNever inspect a component for wear or
dimensional check unless it is absolutely clean;
a slight smear of grease can conceal an
incipient failure.
lWhen a component is to be checked
dimensionally against recommended values,
use the appropriate measuring equipment
(surface plates, micrometers, dial gauges etc.).
Ensure the measuring equipment is calibrated
and in good serviceable condition.
lReject a component if its dimensions are
outside the specified tolerances, or if it appears
to be damaged.
lA part may be refitted if its critical dimension is
exactly to its tolerance limit and it appears to be
in satisfactory condition. Use 'Plastigauge' 12
Type PG-1 for checking bearing surface
clearances.

GENERAL INFORMATION
03-16
Fuel Handling Precautions
Fuel vapour is highly flammable and in confined
spaces is also explosive and toxic. The vapour is
heavier than air and will always fall to the lowest
level. The vapour can be easily distributed
throughout a workshop by air currents;
consequently, even a small spillage of fuel is
potentially very dangerous.
The following information provides basic precautions
which must be observed if fuel is to be handled
safely. It also outlines other areas of risk which must
not be ignored. This information is issued for basic
guidance only, if in doubt consult your local Fire
Officer.
General
Always have a fire extinguisher containing FOAM,
CO
2, GAS or POWDER close at hand when handling
or draining fuel or when dismantling fuel systems.
Fire extinguishers should also be located in areas
where fuel containers are stored.
Always disconnect the vehicle battery before
carrying out dismantling or draining work on a fuel
system.
Whenever fuel is being handled, drained or stored, or
when fuel systems are being dismantled, all forms of
ignition must be extinguished or removed; any
leadlamps must be flameproof and kept clear of
spillage.
WARNING: No one should be permitted to repair
components associated with fuel without first
having specialist training.
WARNING: Do not remove fuel system
components while the vehicle is over a pit.
Fuel tank draining
Fuel tank draining should be carried out in
accordance with the procedure outlined in the FUEL
DELIVERY section of this manual and observing the
following precautions.
WARNING: Fuel must not be extracted or drained
from any vehicle while it is over a pit. Extraction
or draining of fuel must be carried out in a well
ventilated area.
The capacity of containers must be more than
adequate for the amount of fuel to be extracted or
drained. The container should be clearly marked
with its contents and placed in a safe storage
area which meets the requirements of local
authority regulations.Fuel tank removal
When the fuel line is secured to the fuel tank outlet by
a spring steel clip, the clip must be released before
the fuel line is disconnected or the fuel tank is
removed. This procedure will avoid the possibility of
fumes in the fuel tank being ignited when the clip is
released.
As an added precaution, fuel tanks should have a
'FUEL VAPOUR' warning label attached to them as
soon as they are removed from the vehicle.
Fuel tank repairs - plastic tank
No attempt should be made to repair a plastic fuel
tank. If the structure of the tank is damaged, a new
tank must be fitted.
Body repairs
Plastic fuel pipes are particularly susceptible to heat,
even at relatively low temperature, and can be
melted by heat conducted from some distance away.
When body repairs involve the use of heat, all fuel
pipes which run in the vicinity of the repair area must
be removed, and the tank outlet plugged.
WARNING: If welding is to be carried out in the
vicinity of the fuel tank, the fuel system must be
drained and the tank removed before welding
commences.

GENERAL DATA
04-4
Engine - V8
General
Cylinder arrangement 90° V8, numbered from the front of the engine:
⇒ Left bank cylinders 1, 3, 5 and 7
⇒ Right bank cylinders 2, 4, 6 and 8
Bore 94.00 mm (3.70 in)
Stroke:
⇒ 4.0 litre
⇒ 4.6 litre71.04 mm (2.80 in)
81.92 mm (3.22 in)
Capacity:
⇒ 4.0 litre
⇒ 4.6 litre3950 cm
3 (241 in3)
4554 cm3 (278 in3)
Firing order 1 - 8 - 4 - 3 - 6 - 5 - 7 - 2
Compression ratio:
⇒ Low - 4.0 litre 8.23:1
⇒ High - 4.0 and 4.6 litre 9.35:1
Direction of rotation Clockwise viewed from the front of the engine
Maximum power - 4.0 litre:
⇒ Low compression ratio 132 kW (177 bhp) at 4750 rev/min
⇒ High compression ratio - UK/Japan/ROW 136 kW (182 bhp) at 4750 rev/min
⇒ High compression ratio - NAS 140 kW (187 bhp) at 4750 rev/min
Maximum power - 4.6 litre 162 kW (217 bhp) at 4750 rev/min
Maximum engine speed:
⇒ Continuous5000 rev/min
⇒ Intermittent 5250 rev/min
Weight (fully dressed, wet)
⇒ Manual 194 Kg (435 lb)
⇒ Automatic 179 Kg (402 lb)
Dimensions:
⇒ Length - Manual 767 mm (30.2 in) (Including fan)
⇒ Length - Automatic 777 mm (30.5 in) (Including fan and drive plate)
⇒ Width 652 mm (25.7 in)
⇒ Height 746 mm (29.4 in)
Spark plugs:
⇒ Make/Type - 4.0 litre Champion RC11 PYP B4
⇒ Make/type - 4.6 litre Champion RN11 YCC
⇒ Gap - 4.0 and 4.6 litre 1.00 ± 0.05 mm (0.040 ± 0.002 in) Non-adjustable
Coils:
⇒Make Bosch 0221 503 407
⇒Type Twin coils
Fuel injection system:
⇒Make Bosch Motronic 5.2.1 Type 4146
⇒Type Multiport fuel injection, electronically controlled with electro-
mechanical injectors

GENERAL DATA
04-9
Cooling system - Td5
Type Pressurised, spill return partial flow, thermostatically controlled
Cooling fans 11 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 110 °C (230 °F)
⇒ Off 105 °C (221 °F)
For engine cooling at ignition off (to counteract heat
soak):
⇒ On If, within 10 seconds of ignition off, engine coolant temperature is 105
°C (221 °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
Thermostat Waxstat with pressure relief valve
Thermostat opening temperature:
⇒ Initial opening 82 °C (179 °F)
⇒ Fully open 96 °C (204 °F)
Expansion tank cap relief valve - system operating
pressure1.4 bar (20.3 lbf.in
2)
Fuel cooler thermostat opening temperature 82°C (179°F)

TORQUE WRENCH SETTINGS
06-2
Engine Td5
TORQUE DESCRIPTION METRIC IMPERIAL
ACE pump bolts25 Nm (18 lbf.ft)
A/C compressor bolts 25 Nm (18 lbf.ft)
Alternator support bracket to cylinder head bolts 25 Nm (18 lbf.ft)
Alternator/vacuum pump oil feed pipe union 10 Nm (7 lbf.ft)
Camshaft cover to camshaft carrier bolts 10 Nm (7 lbf.ft)
Camshaft sprocket to camshaft bolts 37 Nm (27 lbf.ft)
Centrifuge cover bolts 10 Nm (7 lbf.ft)
Centrifuge oil drain pipe to sump bolts (or nuts) 10 Nm (7 lbf.ft)
Centrifuge to oil drain pipe bolts 10 Nm (7 lbf.ft)
Centrifuge to oil cooler housing bolts 25 Nm (18 lbf.ft)
CKP sensor bolt10 Nm (7 lbf.ft)
Coolant pipe bolt50 Nm (37 lbf.ft)
Connecting rod bolts, then a further 80°20 Nm (15 lbf.ft)
Crankshaft pulley bolt 460 Nm (340 lbf.ft)
Crankshaft pulley TV damper bolts 80 Nm (59 lbf.ft)
Crankshaft rear oil seal housing bolts 10 Nm (7 lbf.ft)
Cylinder head bolts initial tighten 30 Nm (22 lbf.ft)
Cylinder head bolts final tighten, then a further 90°, then a further 180° and finally a
further 45°65 Nm (48 lbf.ft)
Dipstick tube to camshaft carrier bolt 10 Nm (7 lbf.ft)
Drive plate (automatic transmission) to crankshaft bolts 115 Nm (85 lbf.ft)
EGR pipe clamp to cylinder head bolt - if fitted 25 Nm (18 lbf.ft)
EGR pipe Allen screws 10 Nm (7 lbf.ft)
Engine mounting (front) to cylinder block bolts 48 Nm (35 lbf.ft)
Engine mounting (front) to chassis nuts 85 Nm (63 lbf.ft)
Engine mounting bracket (rear, LH & RH) to gearbox bolts 85 Nm (63 lbf.ft)
Engine mounting bracket (rear, LH & RH) nuts 45 Nm (33 lbf.ft)
Flywheel to crankshaft (manual transmission) bolts, then a further 90°40 Nm (30 lbf.ft)
Front crossmember bolts 26 Nm (20 lbf.ft)
Fuel connector block bolts 25 Nm (18 lbf.ft)
Fuel cooler to inlet manifold bolts 25 Nm (18 lbf.ft)
Gearbox housing to engine bolts 50 Nm (37 lbf.ft)
Heater pipe to cylinder head bolts 25 Nm (18 lbf.ft)
Main bearing cap bolts then a further 90°33 Nm (24 lbf.ft)
Oil cooler housing to cylinder block bolts 25 Nm (18 lbf.ft)
Oil cooler pipe clip bolts 10 Nm (7 lbf.ft)
Oil filter adaptor housing to oil cooler housing bolts 25 Nm (18 lbf.ft)
Oil pick-up strainer Torx screws + 10 Nm (7 lbf.ft)
Oil pressure switch 15 Nm (11 lbf.ft)
Oil pump drive sprocket bolt + 25 Nm (18 lbf.ft)
Oil pump pressure relief valve plug + 25 Nm (18 lbf.ft)
Oil pump and stiffener assembly to cylinder block bolts 13 Nm (10 lbf.ft)
Oil sump to cylinder block bolts 25 Nm (18 lbf.ft)
Oil sump to gearbox bell housing bolts 13 Nm (10 lbf.ft)
PAS pump bracket bolts 27 Nm (20 lbf.ft)
PAS pump pulley bolts 27 Nm (20 lbf.ft)
Rocker arm adjusting screw locknuts 16 Nm (12 lbf.ft)

LIFTING AND TOWING
08-1
LIFTING AND TOWING
LIFTING
The following instructions must be carried out before
raising the vehicle off the ground.
lUse a solid level ground surface.
lApply hand brake.
lSelect 'P' (Automatic gearbox) or 1st gear
(Manual gearbox) in main gearbox.
lSelect Low range in transfer gearbox.
To avoid damage occurring to the under body
components of the vehicle the following jacking
procedures must be adhered to.
DO NOT POSITION JACKS OR AXLE STANDS
UNDER THE FOLLOWING COMPONENTS:
lBody structure
lBumpers
lFuel lines
lBrake lines
lFront radius arms
lPanhard rod
lSteering linkage
lRear trailing arms
lFuel tank
lEngine sump
lGearbox bell housing
Vehicle jack
The jack provided with the vehicle is only intended for
use in an emergency, for changing a tyre. DO NOT
use the jack for any other purpose. Refer to Owner's
Handbook for vehicle jack location points and
procedure. Never work under a vehicle supported
solely by the vehicle jack.
Hydraulic jack
A hydraulic jack with a minimum 1500 kg, 3,300 lbs
load capacity must be used. Do not commence
work on the underside of the vehicle until
suitable axle stands have been positioned under
the axle.
WARNING: Always chock the wheels when
jacking. The hand brake acts on the
transmission, not the rear wheels, and may be
ineffective when the wheels are off the ground.Raising and supporting the vehicle
Position cup of hydraulic arm under differential
casing (1).The differential casing is not central to
the axle. Care should be taken when raising the
front road wheels off the ground as the rear axle
has less sway stiffness.
Raise vehicle to enable an axle stand to be installed
under left hand axle tube (2).
Position an axle stand under right hand axle tube (4).
Carefully lower jack until vehicle sits securely on both
axle stands, remove jack.
Alternatively, the axle stands can be positioned
under the chassis longitudinals at the front and/or
rear of the vehicle.

CAPACITIES, FLUIDS, LUBRICANTS AND SEALANTS
09-1
CAPACITIES, FLUIDS, LUBRICANTS AND SEALANTS
Capacities
The following capacities are only an approximation of
the amount of fluid required to fill the respective
system.
Capacities - UK EURO ROWCapacities - NAS
Refrigerant - A/C system
Component Metric Units
Fuel tank 95 litres
Engine - Td5:
⇒ Engine oil and filter change 7.2 litres
⇒ Fill from dry 8.2 litres
Engine - V8 with oil cooler:
⇒Engine oil and filter change 6.27 litres
⇒Engine oil refill from dry: 7 litres
Engine - V8 without oil cooler:
⇒Engine oil and filter change 5.8 litres
⇒ Engine oil refill from dry 6.5 litres
Manual gearbox without oil cooler:
⇒ Refill 2.3 litres
⇒ Fill from dry 2.6 litres
Manual gearbox with oil cooler:
⇒ Refill 2.8 litres
⇒ Fill from dry 3.1 litres
Automatic gearbox fill from dry 9.7 litres
Transfer box:
⇒ Refill 2.0 litres
⇒ Fill from dry 2.3 litres
Front and rear axle:
⇒ Refill 1.6 litres
⇒ Fill from dry 1.7 litres
Cooling system - Td5 Engine:
⇒ Refill 8 litres
⇒ Fill from dry 13 litres
Cooling system - V8 Engine:
⇒ Refill 12 litres
⇒ Fill from dry 13 litres
Component US Units
Fuel tank 25.5 gal
Engine - V8 with oil cooler:
⇒ Engine oil and filter change 6.6 qt
⇒ Engine oil refill from dry 7.4 qt
Engine - V8 without oil cooler:
⇒ Engine oil and filter change 6.1 qt
⇒ Engine oil refill from dry 6.9 qt
Automatic gearbox fill from dry
19.7 pt
Transfer box:
⇒ Refill 4.1 pt
⇒ Fill from dry 4.8 pt
Front and rear axle:
⇒ Refill 3.4 pt
⇒ Fill from dry 3.6 pt
Cooling system - V8 Engine:
⇒ Refill 24.2 pt
⇒ Fill from dry 26.2 pt
⇒Front A/C 700 ± 25 g
⇒Front/rear A/C 900 ± 25 g

CAPACITIES, FLUIDS, LUBRICANTS AND SEALANTS
09-3
Lubrication
General
The engine and other lubricating systems are filled
with high-performance lubricants giving prolonged
life.
CAUTION: Always use a high quality oil of the
correct viscosity range in the engine. The use of
oil of the incorrect specification can lead to high
oil and fuel consumption and ultimately to
damaged components.
Oil to the correct specification contains additives
which disperse the corrosive acids formed by
combustion and prevent the formation of sludge
which can block the oil ways. Additional oil additives
should not be used.
Always adhere to the recommended servicing
intervals.Engine oil viscosity
The above chart indicates the ambient temperature
ranges which each engine oil viscosity is suitable for.
Engine oil - V8 - Not North America
Use a 5W/30, 5W/40, 5W/50, 10W/30, 10W/40,
10W/50 or 10W/60 oil meeting specifications ACEA
A1 or A2, having a viscosity band suitable for the
temperature range of your locality.
Engine oil - V8 - North America
Use a 5W/30, 5W/40 or 10W/40 oil meeting
specifications API SH or SJ, having a viscosity band
suitable for the temperature range of your locality.
Engine oil - Td5
Use 5W/30, 5W/40, 5W/50, 10W/30, 10W/40, 10W/
50 or 10W/60 oil to specifications ACEA A1/B1,
having a viscosity band suitable for the temperature
range of your locality.
Note: Where oils to these specifications are not
available, oils to specifications ACEA A3/B3 or A2/
B2 may be used but use of these oils may have an
adverse effect on fuel economy.
Note: Where oils to these European specifications
are not available, well known brands of oil meeting
specifications API SH or SJ may be used.

MAINTENANCE
10-8 PROCEDURES
Road wheels
Refit
1.Apply anti-seize compound to wheel hub
centre.
2.Refit road wheels to original hub position.
Tighten wheel nuts to 140 Nm (103 lbf.ft).
Radiator/Intercooler
Check
1.Visually check radiator/intercooler for external
obstructions, remove debris.
2.Visually check fan blades for damage.
Ambient air Temperature and pressure
sensor
Check
1.Check ambient air temperature and pressure
sensor for damage.
Doors, bonnet and fuel filler flap
Check
1.Check operation of each door, door lock,
bonnet catch and fuel filler flap. Ensure doors
close securely.
Lubricate
1.Lubricate door locks, hinges, check straps,
bonnet catch and fuel filler flap.

+ CAPACITIES, FLUIDS,
LUBRICANTS AND SEALANTS,
Lubrication.