Land Rover Defender Owners Handbook Aus Rover

							Workshop maintenance
117 SAFETY IN THE GARAGE
Whenever you carry out maintenance on
your vehicle, the following safety
precautions should be observed at all times.
·ALWAYS keep hands, tools and items of
clothing clear of all drive belts and pulleys
whilst they are in operation.
·DO NOT touch exhaust or cooling system
components until they are cool.
·DO NOT touch electrical leads or
components with the starter switch turned
on.
·NEVER leave the engine running in an
unventilated area; exhaust gases are
poisonous and contain carbon monoxide,
which can cause unconsciousness and
can be fatal.
·DO NOT work beneath the vehicle with the
lifting jack as the only means of support.
·Ensure sparks and naked lights are kept
away from the engine and battery
compartments.
·DO NOT use any lubricants, solvents or
sealants etc, without first reading any
warnings and instructions supplied with
these substances; they could be harmful if
improperly used.
WARNING
Remember, cooling fans and air
conditioning system condenser fans (if
fitted), may continue to operate after the
engine is switched off. Always wait until the
fans have completely stopped moving before
working in the engine compartment.Fuel system safety
Fuel vapour is highly flammable and in
confined spaces, is also very explosive and
toxic. When fuel evaporates, it produces 150
times its own volume in vapour and when
mixed with air, becomes an easily ignitable
mixture; consequently even a small spillage is
very dangerous.
It is recommended that you always have a
FOAM, CO
2GAS, or POWDER type fire
extinguisher close at hand when working with
fuel or the fuel system.
ALWAYS disconnect the battery negative lead
BEFORE carrying out work on the fuel system.
WARNING
It is imperative that the battery is
disconnected BEFORE and not during any
work on the fuel system, as arcing at the
battery terminal could ignite fuel vapour in
the atmosphere.
Whenever fuel is being handled, transferred
or stored, or when carrying out work on the
fuel system, all forms of ignition MUST be
extinguished or removed, any lighting being
used MUST be flameproof and kept clear of
the fuel. 
						

							Workshop maintenance
118 Poisonous liquids
Most liquids and lubricants used in motor
vehicles are poisonous and should not be
consumed or brought into contact with open
wounds. These include; battery acid,
anti-freeze, brake, clutch and power steering
fluid, as well as petrol, diesel, engine oil and
windscreen washer additives.
For your own safety, ALWAYS read and obey
all instructions printed on labels and
containers.
Used engine oil
Prolonged contact with engine oil can cause
serious skin disorders, including dermatitis
and skin cancer. ALWAYS wash thoroughly
after contact.
It is illegal to pollute drains, water courses or
soil with toxic chemicals such as used engine
oil. ALWAYS dispose of vehicle liquids and
lubricants at authorised waste disposal sites,
or at garages which provide facilities for the
receipt of used engine oil and toxic chemicals.
If in doubt, contact your Local Authority for
advice.
PROTECT THE ENVIRONMENT! 
						

							Workshop maintenance
119 ENGINE OIL RENEWAL(all engines)
NOTE:For engine oil check & top-up see
Owner maintenance.
WARNING
DO NOT attempt to drain the engine sump if
the engine has been running for some time,
the engine oil will be hot and may cause
severe scalding.
V8 engine
Tdi engineWith the vehicle resting on firm, level ground,
run the engine for a few minutes so that the
oil will drain more easily. Turn the starter
switch to position 0 and disconnect the
battery negative lead.
Remove the oil filler cap and position a
suitable container under the oil drain plug (4)
to collect the used oil.
Remove the drain plug and its washer and
allow the oil to drain completely.
NOTE:If, by necessity, this procedure is
being carried out in dusty or sandy
conditions, refit the drain plug as soon as the
main bulk of the oil has drained.
When the sump has fully drained, clean the
draining plug and the surrounding area of the
sump and refit with a new copper washer.
Refill the sump with fresh oil of the correct
specification (see General data). Refit the
filler cap and let the vehicle stand for five
minutes to allow the oil to drain back into the
sump. Check the oil level using the dipstick
(as described in Owner maintenance) and top
up until the correct level is obtained.
·DO NOT use oil previously drained from
the engine.
·DO NOT OVERFILL! 
						

							Workshop maintenance
120
V8 engines
Tdi enginesENGINE OIL FILTER RENEWAL
To prevent any possibility of air locks in the oil
pump, it is recommended that filter renewal is
carried out AFTER the engine oil has been
changed.
NOTE:On V8 engines, to minimise the risk of
draining the oil pump, ensure that the oil is at
the correct operating level before removing
the filter.
·Turn the starter switch to position 0 and
disconnect the battery negative lead.
·Clean the area around the head of the
filter.
·Place a suitable container beneath the
filter.
·Using a strap wrench, unscrew the filter
(6) and discard it safely.
·Half fill the filter and smear the rubber
washer (7) of the new filter, with clean
engine oil of the correct specification (see
General data).
·Screw the filter on clockwise until the
rubber washer touches up against the
machined face, then tighten a further half
turn using hand pressure only. DO NOT
OVERTIGHTEN.
·Connect the battery negative lead and run
the engine at a fast idle for five minutes.
·Check the filter for leaks.
Stop the engine and let the vehicle stand for
five minutes to let the oil drain back into the
sump. Check the oil level (see Owner
maintenance) and top up if necessary. 
						

							Workshop maintenance
121 FUEL FILTER RENEWAL
Petrol engines
Before carrying out any work on the fuel
system, it is essential that you have read and
understood the precautions listed at the
beginning of the section (see Fuel system
safety).
The fuel filter is located next to the fuel pump
on the right hand side of the chassis (when
viewed from the rear).
·Turn the starter switch to position 0 and
disconnect the battery negative lead.
NOTE:On 110 models the fuel filter is located
behind a protective cover (as illustrated
above). To remove the cover, unscrew the
three bolts (1).
·Unscrew the centre bolt (2) and withdraw
the filter bowl (3).
·Remove the small sealing ring (4) and
withdraw the element (8).
·Remove the large sealing ring (5) and
discard the old element.
·Clean the filter bowl with clean fuel, ensure
the centre and top sealing rings (7) are in
good condition. Replace if necessary.
·Fit the new element (small hole
downwards) and refit the small and large
sealing rings (4 and 5).
·Replace filter bowl and tighten the centre
bolt.
·Connect the battery negative lead.
·Start the engine and check for leaks. 
						

							Workshop maintenance
122 Tdi engine
·Turn the starter switch to position 0 and
disconnect the battery negative lead.
·Clean the area around the filter head (1)
and place a container under the filter.
·Using a strap wrench, unscrew the filter
(2) and catch the fuel released in the
container.
·Wet the seal of the new filter (3) with
diesel fuel and screw the filter into
position and tighten.
·Ensure that the drain tap (4) at the base of
the filter is closed.
·Connect the battery negative lead.
·Start the engine and check for leaks. 
						

							Workshop maintenance
123 FUEL SEDIMENTER CLEANING
(diesel engines - if fitted)
NOTE:The fuel sedimenter should be drained
before removal; this process is covered in
Owner maintenance.
The fuel sedimenter is mounted on the
chassis rear side member, near the rear
wheel.
·Turn the starter switch to position 0 and
disconnect the battery negative lead.
·Disconnect the fuel inlet pipe from the
sedimenter and raise the pipe above the
level of the fuel tank. The pipe must be
kept at this level to prevent the tank from
draining.
·Whilst supporting the sedimenter bowl
(1), unscrew the bolt on the top of the unit
(2) and then remove the bowl.
·Remove the sedimenter element (3) and
clean all parts with kerosene.
·Fit new seals (4) and re-assemble the
sedimenter unit.
·Slacken off the drain plug (5) until pure
diesel is emitted, then re-tighten.
·If necessary, prime the system.
·Connect the battery negative lead.
·Start the engine and check the sedimenter
for leaks. 
						

							Workshop maintenance
124 AIR CLEANER ELEMENT RENEWAL
V8 engine
Engine performance will be seriously
affected if the air cleaner element becomes
choked with dust and other airborne
particles.
·Unscrew the two retaining nuts (1).
·Disconnect the air cleaner hose (2).
·Remove the engine breather hose (3).
·Withdraw the air cleaner canister (4).
·Unscrew the wing nut and washer (5).
·Remove the filter seal (6).
·Remove the element (7) from the canister.
·Discard the old element, DO NOT attempt
to clean it.
·Insert the new element and secure with
the wing nut and washer.
·Fit the air cleaner canister.
·Fit the breather hose.
·Fit the air cleaner hose.
·Secure with the retaining straps and nuts.
NOTE:Check the dump valve (8) (see Air
cleaner dump valve check). 
						

							Workshop maintenance
125 Tdi engine
Engine performance will be seriously
affected if the air cleaner element becomes
choked with dust and other airborne
particles.
·Release the two retaining clips (1).
·Raise the air cleaner slightly from its
cradle to improve access to the element.
·Unscrew the wing nut (2) and remove the
end cover.
·Unscrew the wing nut (3) and withdraw
the element.
·Clean the interior and exterior of the
casing and cover.
·Fit a new element, seal first, into the
casing.
·Secure the element with the wing nut.
·Fit the end cover and align the two arrows
(4).
·Position the air cleaner in its mounting
cradle and secure the two clips (1). 
						

							Workshop maintenance
126 Air cleaner dump valve check - all engines
The dump valve (8) is situated on the
underside of the element housing.
·Squeeze open the dump valve (as
illustration) and check that the interior is
clean. Renew the valve if perished.