2002 LAND ROVER DISCOVERY height

TORQUE WRENCH SETTINGS
06-12
Rear suspension
Brakes
TORQUE DESCRIPTION METRIC IMPERIAL
Wheel nuts140 Nm (103 lbf.ft)
Wheel hub to axle 100 Nm (74 lbf.ft)
Damper to axle125 Nm (92 lbf.ft)
SLS height sensor link to radius arm 25 Nm (18 lbf.ft)
Radius arm230 Nm (170 lbf.ft)
Transverse links to pivot housing 155 Nm (114 lbf.ft)
Pivot housing to axle bolts 230 Nm (170 lbf.ft)
Transverse link to chassis 140 Nm (103 lbf.ft)
SLS height sensor 6 Nm (4.4 lbf.ft)
SLS compressor25 Nm (18 lbf.ft)
ACE actuator to short arm 185 Nm (136 lbf.ft)
ACE actuator to long arm 48 Nm (35 lbf.ft)
ACE actuator pipe cap nuts 29 Nm (21 lbf.ft)
Anti-roll bar link - upper 50 Nm (37 lbf.ft)
Anti-roll bar link - lower 100 Nm (74 lbf.ft)
ACE long arm to torsion bar 180 Nm (133 lbf.ft)
TORQUE DESCRIPTION METRIC IMPERIAL
Brake caliper bleed screw 10 Nm (7 lbf.ft)
Brake disc to drive flange 13 Nm (10 lbf.ft)
Caliper bolts - Front 175 Nm (129 lbf.ft)
Caliper bolts - Rear 95 Nm (70 lbf.ft)
Master cylinder to servo 25 Nm (18 lbf.ft)
Master cylinder brake pipe, unions 25 Nm (18 lbf.ft)
Brake caliper pivot bolt 30 Nm (22 lbf.ft)
Vacuum pump8 Nm (6 lbf.ft)
Vacuum pump lubrication pipe union 10 Nm (7 lbf.ft)
Brake caliper guide pin bolts 30 Nm (22 lbf.ft)
Brake caliper banjo bolt 32 Nm (24 lbf.ft)
ABS modulator to mounting bracket nuts 9 Nm (7 lbf.ft)
ABS modulator - 13 mm unions 22 Nm (16 lbf.ft)
ABS modulator - 11 mm union 14 Nm (10 lbf.ft)
Handbrake lever to floor bolts 22 Nm (16 lbf.ft)

MAINTENANCE
10-4 PROCEDURES
5. Check security of seat belt upper mountings.
6. Check for correct operation of seat belt height
adjusters.
7.Check security of seat belt buckle mountings.
8.Connect each belt to the correct buckle, check
seat buckle and tongue are secure. Release
seat belt buckle and check for correct
operation.9.Check tightness of accessible seat belt fixings.
10.Check tightness of accessible seat belt
mountings.

MAINTENANCE
PROCEDURES 10-25
1.Check and tighten if necessary all rear axle
suspension fixings.

+ TORQUE WRENCH SETTINGS, Rear
suspension.
Steering rod ball joints
Check
1.Check condition of ball joints and dust covers,
and security of fixings.

+ TORQUE WRENCH SETTINGS,
Steering.
Dampers and SLS height sensors
Check – Dampers
Front dampers
Rear dampers
1.Check dampers for security and signs of
leakage.

MAINTENANCE
10-26 PROCEDURES
Check – Height sensors
SLS height sensors
1.Check height sensors for condition and
security.
2.Check electrical harness for chafing and
damage.
Front and rear axle suspension links
Check
Rear suspension
Front suspension
1.Check condition of front and rear axle
suspension link mounting rubbers.

ENGINE - V8
OVERHAUL 12-2-61
9.Remove cylinder head gasket.
CAUTION: Support both ends of cylinder
head on blocks of wood.
Inspect
1.Clean mating faces of cylinder block and head
using suitable gasket removal spray and a
plastic scraper, ensure that bolt holes in block
are clean and dry.
CAUTION: Do not use a metal scraper or
machined surfaces may be damaged.
2.Check head and block faces for warping and
pitting.
lMaximum cylinder head warp = 0.05 mm
(0.002 in).
Note: Cylinder head can be refaced to 0.50
mm (0.02 in) maximum below head height –
See cylinder head overhaul.Reassembly
1.Fit cylinder head gasket with the word TOP
uppermost.
CAUTION: Gaskets must be fitted dry.
2.Carefully fit cylinder head and locate on
dowels.
3.Lightly lubricate new cylinder head bolt threads
with clean engine oil.
4.Noting that bolts 1, 3 and 5 are longer than the
remainder, fit bolts and tighten in the sequence
shown to 20 Nm (15 lbf.ft) then turn through 90
°, then a further 90 °. CAUTION: Do not
tighten bolts 180
° in one operation.
5.Clean the push rods, Lubricate ends of push
rods with clean engine oil, and fit in their
removed order.
6.Clean bases of rocker pillars and mating faces
on cylinder head.
7.Clean contact surfaces on rockers, valves and
push rods.
8.Lubricate contact surfaces and rocker shaft
with clean engine oil.
9.Fit rocker shaft assembly and engage push
rods.
10.Fit rocker shaft bolts and progressively tighten
to 40 Nm (30 lbf.ft).
11.Connect ht leads to spark plugs in their correct
fitted order.
12. RH cylinder head: Position alternator
mounting bracket, fit bolts and tighten to 40 Nm
(30 lbf.ft).
13. RH cylinder head: Fit auxiliary drive belt
tensioner.
14.Fit inlet manifold gasket.

+ ENGINE - V8, OVERHAUL, Gasket -
inlet manifold.

ENGINE - V8
12-2-62 OVERHAUL
Cylinder head - overhaul
$% 12.29.19.01
Disassembly
1.Remove cylinder head gasket.

+ ENGINE - V8, OVERHAUL, Gasket -
cylinder head.
2.Loosen screw on tool LRT-12-034.
3.Fit tool LRT-12-034 to valve and tighten screw
to compress valve spring sufficiently to release
collets from valve spring cap.
4.Remove 2 collets and release valve spring
compressor.
5.Remove valve spring cap and valve spring.
6.Remove valve from cylinder head.
7.Remove and discard valve stem oil seal.
8.Repeat above operations for remaining valves.
9.Keep valves, springs, caps and collets in their
fitted order. Inspect
1.Clean mating faces of cylinder block and head
using suitable gasket removal spray and a
plastic scraper, ensure that bolt holes in block
are clean and dry.
CAUTION: Do not use a metal scraper or
machined surfaces may be damaged.
2.Clean cylinder head, valve springs, valves and
inlet valve guide bores. Ensure all loose
particles of carbon are removed on completion.
3.Check head and block faces for warping and
pitting. Maximum warp = 0.05 mm (0.002 in).
4.Check cylinder head height at each end of
head. Renew a head which is outside limits.
a22.94 mm (0.903 in) - New
b62.56 mm (2.463 in) - New
5.Cylinder head can be refaced to 0.50 mm (0.02
in) max. below head height.

ENGINE - V8
12-2-64 OVERHAUL
10.Check the following valve dimensions. Renew
valves as necessary.
lValve head diameter 'A': Inlet = 39.75 to
40.00 mm (1.56 to 1.57 in).
lValve head diameter 'A': Exhaust = 34.23 to
34.48 mm (1.35 to 1.36 in).
lValve stem diameter 'B': Inlet = 8.664 to
8.679 mm (0.341 to 0.342 in).
lValve stem diameter 'B': Exhaust – 4.0 litre
engines up to engine nos. 55D 05677A; 56D
50787A and 97D 05504A = 8.651 to 8.666
mm (0.340 to 0.341 in).
lValve stem diameter 'B': Exhaust – 4.0 litre
engines from engine nos. 55D 05678A; 56D
50788A and 97D 05505A and all 4.6 litre
engines = 8.641 to 8.656 mm (0.340 to
0.341 in)
11.Check installed height of valve.
lValve installed height, end of valve to base
of spring seat, 'C' = 44.163 to 45.288 mm
(1.741 to 1.802 in).12.Check condition of valve springs. Valve
springs must be replaced as a complete
set.
lValve spring free length = 48.30 mm (1.90
in).
lValve spring fitted length = 40.40 mm (1.59
in).
l Spring load - valve closed = 339
± 10 N (76
± 2.25 lbf).
lSpring load - valve open = 736
± 10 N (166
± 2.25 lbf).
13.Check valve stem to guide clearance using the
following procedures:
14.Insert each valve into its respective guide.
15.Extend valve head approximately 13 mm (0.6
in) out of valve seat and position a DTI gauge
to rear of valve head.
16.Move valve towards front of cylinder head and
zero DTI gauge ensuring that stylus of gauge
remains in contact with valve head.
17.Move valve towards rear of cylinder head and
record gauge reading to give valve stem to
guide clearance.
l Valve stem to guide clearance 'D': Inlet =
0.025 to 0.066 mm (0.001 to 0.002 in).
l Valve stem to guide clearance 'D': Exhaust
– 4.0 litre engines up to engine nos. 55D
05677A; 56D 50787A; 97D 05504A = 0.038
to 0.078 mm (0.0015 to 0.003 in).
lValve stem to guide clearance 'D': Exhaust
– 4.0 litre engines from engine nos. 55D
05678A; 56D 50788A; 97D 05505A and all
4.6 litre engines = 0.048 to 0.088 mm
(0.0019 to 0.0035 in).
18.Renew valve guides as necessary.
19.Using valve guide remover tool LRT-12-037
press valve guide into combustion face side of
cylinder head.

ENGINE - V8
OVERHAUL 12-2-65
20.Lubricate new valve guide with engine oil and
with tapered portion of guide leading, insert
guide from valve spring side of head.
Note: Service valve guides are 0.025 mm
(0.001 in) oversize on outside diameter to
ensure an interference fit.
21.Fully fit guide using tool LRT-12-039A and
distance piece tool LRT-12-208
lValve guide installed height 'A' = 15.00 mm
(0.590 in).
22.Ream valve guide to 8.70 mm (0.342 in).
23.Position cylinder head stands and mount
cylinder head on stands.
24.Check valve seat insert for pitting, burning,
cracks and wear. Replace as necessary.
Service valve seat inserts are available 0.025
mm (0.001 in) oversize on outside diameter to
ensure interference fit.
25.Remove worn valve seat.
CAUTION: Take care not to damage the
counterbore in the cylinder head when
removing valve seats.26.Heat cylinder head evenly to approximately
120
° C (250°F).
WARNING: Handle the hot cylinder head
with care.
27.Using a suitable mandrel, press new insert fully
into counterbore.
28.Allow cylinder head to air cool.
CAUTION: Renew worn valve guides and/or
valve seats before lapping the valves.
29.Recut valve seat in head and lap in valves
using fine paste.
30.Coat valve with a small quantity of engineer's
blue, insert valve and press into position
several times without rotating. Seating position
should be in centre of valve face.