Discovery 2. Manual — part 26
MAINTENANCE
PROCEDURES
10-9
Air suspension intake filter
Check
1. Check condition of filter and that filter is clean,
replace if necessary.
Anti-freeze
Replace
1. Replace anti-freeze.
ADJUSTMENTS, Drain and refill.
ADJUSTMENTS, Drain and refill.
Cooling system
Check
1. Check cooling, intercooler and heating systems
for leaks; hoses and oil pipes for security and
condition.
2. Check accessible hose clips for tightness.
3. Check coolant level, top-up if necessary.
Top-up
1. With engine cold, remove expansion tank filler
cap.
2. Top-up with recommended mixture of coolant
until level reaches mark on expansion tank.
LUBRICANTS AND SEALANTS, Anti-Freeze
Concentration.
3. Fit expansion tank filler cap.
MAINTENANCE
10-10
PROCEDURES
Spark plugs - V8 engine
Replace
Take great care when fitting spark plugs not
to cross-thread plug, otherwise costly
damage to cylinder head will result. It is
essential that correct grade of spark plugs
are fitted. Incorrect grade of spark plugs
may lead to piston overheating and engine
failure. Use only approved spark plugs, use
of unapproved spark plugs may cause the
misfire detection system to malfunction.
1. Disconnect battery earth lead.
2. Noting their fitted position, disconnect ht leads
from spark plugs.
3. Remove 8 spark plugs.
4. Ensure that gap of new spark plugs is 1.0
±
0.05 mm (0.040
±
0.002 in).
Do not attempt to clean or adjust gaps. If a
spark plug problem exists, try substituting
defective spark plug(s) with new one(s).
CAUTION: Do not attempt to clean or adjust
spark plug gaps. If a spark plug problem
exists, try substituting the defective spark
plug with a new one.
5. Fit spark plugs and tighten to 20 Nm (15 lbf.ft).
6. Connect ht leads to spark plugs.
7. Connect battery earth lead.
Air cleaner - V8 engine
Replace
1. Replace air cleaner element.
V8, REPAIRS, Element - air filter.
Clean
1. Clean the drain hole in filter casing.
Air cleaner and dump valve - diesel
engine
Replace/clean
1. Replace air cleaner element.
Td5, REPAIRS, Element - air filter.
2. Remove all dirt from dump valve.
MAINTENANCE
PROCEDURES
10-11
Auxiliary drive belt
Check
TD5 auxiliary belt
V8 auxiliary belt
1 Tensioner pulley
2 Alternator
3 A/C compressor
4 ACE pump
5 Idler pulley - V8 only
6 PAS pump
7 Viscous fan pulley
8 Crankshaft pulley
9 Idler pulley - V8 only
1. Check auxiliary drive belt for signs of splits,
fraying, oil contamination and wear.
Auxiliary drive belt - V8 engine
1. Replace auxiliary drive belt.
REPAIRS, Belt - auxiliary drive.
Auxiliary drive belt - diesel engine
Replace
1. Replace auxiliary drive belt.
MAINTENANCE
10-12
PROCEDURES
Fluid reservoirs
Check/top-up — Brake/Clutch reservoir
1. Check fluid level in brake/clutch fluid reservoirs.
2. Clean area around filler cap, remove cap.
3. Top-up if necessary to correct level on reservoir
using recommended fluid.
LUBRICANTS AND SEALANTS, Fluids.
4. Fit filler cap.
Check/top-up — PAS/ACE reservoirs
1. Check fluid level in PAS and ACE fluid
reservoirs.
2. Clean area around filler cap, remove cap.
3. Top-up if necessary to correct level on reservoir
LUBRICANTS AND SEALANTS, Fluids.
4. Fit filler cap.
Check/top-up — Washer reservoir
1. Check fluid level in windscreen washer
reservoir.
2. Clean area around filler cap, remove cap.
3. Top-up if necessary to correct level on reservoir
LUBRICANTS AND SEALANTS, Fluids.
4. Fit filler cap.
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