coolant LAND ROVER DISCOVERY 2002 Service Manual

ENGINE - V8
12-2-30 REPAIRS
Refit
1.Clean mating faces of engine and gearbox,
dowel and dowel holes.
2.Lubricate splines and bearing surface on first
motion shaft with grease.
3.With assistance position engine in engine bay,
align to gearbox and locate on dowels.
4.Position support brackets, fit bell housing bolts
and tighten to 50 Nm (37 lbf.ft).
5.Position engine mountings, fit nuts and tighten
to 85 Nm (63 lbf.ft).
6.Lower lifting equipment and remove from
engine.
7. Models with automatic gearbox: Align torque
converter to drive plate, fit bolts and tighten to
50 Nm (37 lbf.ft). Fit access plug.
8.Fit exhaust front pipe.

+ MANIFOLDS AND EXHAUST
SYSTEMS - V8, REPAIRS, Front pipe.
9.Position oil cooling pipe saddle clamps and
tighten bolts.
10.Position engine harness into foot well.
11.Connect 5 multiplugs to ECM.
12.Fit toe board and secure with trim fixings.
13.Connect engine harness earth to body and
secure with nut.
14.Connect engine harness to main harness
multiplug.
15.Connect multiplug to EVAP purge valve.
16.Connect engine harness multiplugs to fuse
box.
17.Connect starter lead to fuse box and secure
with nut.
18.Connect engine harness positive lead to
battery and tighten nut.
19.Fit fuse box cover.
20.Position engine earth lead and secure with
bolt.
21.Position coolant rail and secure with bolt.
22.Connect harness clips to coolant rail.
23.Connect hose to coolant rail and coolant pump
and secure with clips.
24.Connect PAS pump high and low pressure
pipes and secure with clips.
25.Position oil cooling pipe saddle clamp to PAS
pump housing and secure with bolt.
26.Clean A/C compressor and housing mating
faces, dowels and dowel holes. 27.Position A/C compressor, fit bolts and tighten
to 22 Nm (16 lbf.ft).
28.Connect multiplug to A/C compressor.
29.Clean ACE pump and housing mating faces,
dowels and dowel holes.
30.Position ACE pump, fit bolts and tighten to 22
Nm (16 lbf.ft).
31.Clean all pulley 'V's, fit auxiliary drive belt,
using a 15mm spanner, release belt tensioner
secure belt and re-tension drive belt .
32.Ensure auxiliary drive belt is correctly located
on all pulleys.
33.Fit radiator.

+ COOLING SYSTEM - V8, REPAIRS,
Radiator.
34.Fit top hose and secure with clips.
35.Connect fuel pipe to fuel rail.
36.Position ignition coils and connect ht leads.
37.Fit upper inlet manifold.

+ MANIFOLDS AND EXHAUST
SYSTEMS - V8, REPAIRS, Gasket - inlet
manifold - upper - Without Secondary Air
Injection.
38.Fit new oil filter and refill engine with oil.

+ ENGINE - V8, REPAIRS, Filter - oil.

+ MAINTENANCE, PROCEDURES,
Engine oil - V8 engine.
39.Top up gearbox oil.

+ MAINTENANCE, PROCEDURES,
Automatic gearbox.

ENGINE - V8
REPAIRS 12-2-35
Strainer - oil pick-up
$% 12.60.20
Remove
1.Remove sump gasket.

+ ENGINE - V8, REPAIRS, Gasket -
sump.
2.Remove 2 bolts and one nut securing oil pick-
up strainer.
3.Remove oil pick-up strainer.
4.Collect spacer from stud.
5.Remove and discard 'O'ring.
Refit
1.Clean oil pick up strainer and 'O' ring recess.
2.Lubricate and fit new 'O' ring.
3.Locate spacer on stud.
4.Position oil pick-up strainer, fit bolts and tighten
to 10 Nm (8 lbf.ft). Fit nut and tighten to 22 Nm
(16 lbf.ft).
5.Fit new sump gasket.

+ ENGINE - V8, REPAIRS, Gasket -
sump.
Pump - oil
$% 12.60.26
Remove
1.Remove timing gear cover gasket.

+ ENGINE - V8, REPAIRS, Gasket -
timing gear cover.
2.Remove bolt securing CMP sensor, remove
clamp and sensor.
3.Remove 6 bolts securing coolant pump,
remove pump and discard gasket.
4.Remove oil pressure switch and discard
sealing washer.
5.Remove 4 bolts securing oil filter head, remove
filter head and discard 2 'O' rings.
6.Remove filter head adaptor.
Refit
1.Ensure filter head adaptor is clean and apply
Loctite 577 sealant to thread.
2.Fit filter head adaptor and tighten bolts to 13
Nm (9 lbf.ft).
3.Clean filter head and mating face.
4.Fit new 'O' rings to filter head and filter head
adaptor.
5.Fit filter head and tighten bolts to 8 Nm (6 lbf.ft).
6.Ensure oil pressure switch and mating face is
clean.
7.Fit new sealing washer and tighten switch to 15
Nm (11 lbf.ft).

ENGINE - V8
12-2-36 REPAIRS
8.Clean coolant pump and mating face.
9.Use a new gasket and fit coolant pump.
Tighten bolts securing coolant pump to 25 Nm
(19 lbf.ft).
10.Ensure CMP sensor is clean and fit sensor to
cover.
11.Fit clamp to CMP sensor and tighten bolt to 8
Nm (6 lbf.ft).
12.Fit timing gear cover gasket.

+ ENGINE - V8, REPAIRS, Gasket -
timing gear cover.
Gasket - sump
$% 12.60.38
Remove
1.Release fixings and remove battery cover.
2.Disconnect battery earth lead.
3.Remove dipstick.
4.Raise the vehicle on a ramp.
5.Drain engine oil.

+ MAINTENANCE, PROCEDURES,
Engine oil - V8 engine.
6.Remove 8 bolts securing cross member and
remove cross member.
7.Raise front of vehicle under body to increase
clearance between engine and front axle.
8.Disconnect and release gearbox oil cooler pipe
and discard 'O' ring.

ENGINE - V8
12-2-40 REPAIRS
11.Push against coupling release rings and
disconnect both hoses from oil cooler.
CAUTION: Always fit plugs to open
connections to prevent contamination.
12.Remove screw securing oil cooler to radiator.
13.Release cooler from its location on radiator.
14.Release radiator lower mountings from
location in chassis and carefully move radiator
towards engine sufficiently only to release
engine oil cooler from radiator.
15.Remove engine oil cooler.
Refit
1.Fit engine oil cooler to radiator, engage in
location and secure with screw.
2.Fit radiator to location in chassis.
3.Ensure connections are clean, then secure
hoses to oil cooler.
4.Fit extension brackets to radiator and secure
with bolts.
5.Fit brackets with rubber mounts to extension
brackets and secure to air conditioning
condenser with screws.
6.Fit radiator upper mounting brackets and
secure to body with bolts.
7.Fit LH horn and secure with nut.
8.Fit LH and RH air deflectors to front panel and
secure with scrivets.
9.Fit front grille.

+ EXTERIOR FITTINGS, REPAIRS,
Grille - front - up to 03MY..
10.Fit cooling fan cowl and secure with fixings.
11.Fit battery cover and secure with fixings.
12.Top up engine oil.
Gasket - timing gear cover
$% 12.65.04
Remove
1.Remove oil pick-up strainer.

+ ENGINE - V8, REPAIRS, Strainer -
oil pick-up.
2.Remove timing gear cover oil seal.

+ ENGINE - V8, REPAIRS, Seal - cover
- timing gears.
3.Remove engine oil filter.

+ ENGINE - V8, REPAIRS, Filter - oil.
4.Remove and discard 3 bolts securing coolant
pump pulley and remove pulley.
5.Remove 3 bolts securing PAS pump pulley and
remove pulley.
6.Drain cooling system.

+ COOLING SYSTEM - V8,
ADJUSTMENTS, Drain and refill.

ENGINE - V8
REPAIRS 12-2-41
7.Release clip and disconnect coolant hose from
coolant pump.
8.Disconnect multiplug from oil pressure switch.
9.Disconnect multiplug from CMP sensor.
10. If fitted: Loosen union and disconnect oil
cooler pipe from timing gear cover. Remove
and discard 'O' ring.
CAUTION: Always fit plugs to open
connections to prevent contamination.11.Remove 9 bolts securing timing gear cover and
remove cover. Remove and discard gasket.
Refit
1.Clean mating faces of timing gear cover and
cylinder block. Clean dowels and dowel holes.
2.Fit new gasket, dry, to dowels in cylinder block.
3.Fit timing gear cover to cylinder block and,
working the sequence illustrated, tighten bolts
to 22 Nm (17 lbf.ft) . Ensure CMP sensor
multiplug bracket is secured by bolt.
4. If fitted: Fit new 'O' ring to oil cooler pipe,
connect pipe to timing gear cover and tighten
union to 15 Nm (11 lbf.ft).
5.Connect multiplug to oil pressure switch.
6.Connect multiplug to CMP sensor.
7.Connect coolant hose to coolant pump and
secure with clip.

ENGINE - V8
12-2-42 REPAIRS
8.Ensure mating faces of PAS pump pulley and
drive flange are clean, fit pulley and tighten
bolts to 22 Nm (16 lbf.ft).
9.Remove all traces of thread locking material
from coolant pump pulley drive flange bolt
holes using an M8 tap.
10.Ensure mating faces of coolant pump pulley
and drive flange are clean, fit pulley and tighten
new Patchlok bolts to 22 Nm (16 lbf.ft).
11.Ensure mating faces of oil filter and adaptor are
clean, smear clean engine oil onto seal and fit
filter.
12.Fit timing gear cover oil seal.

+ ENGINE - V8, REPAIRS, Seal - cover
- timing gears.
13.Fit oil pick-up strainer.

+ ENGINE - V8, REPAIRS, Strainer -
oil pick-up.
14.Refill cooling system.

+ COOLING SYSTEM - V8,
ADJUSTMENTS, Drain and refill.
Seal - cover - timing gears
$% 12.65.05
Remove
1.Remove auxiliary drive belt.

+ CHARGING AND STARTING,
REPAIRS, Belt - auxiliary drive.
2.Secure tool LRT-12-080 to crankshaft pulley
with 2 bolts.
3.Remove crankshaft pulley bolt.
4.Remove crankshaft pulley.
5.Use tool LRT-12-088, to remove oil seal from
timing gear cover.

ENGINE - V8
OVERHAUL 12-2-45
OVERHAUL
Gasket - inlet manifold
$% 30.15.08.01
Disassembly
1.Disconnect multiplug from coolant thermistor.
2.Disconnect multiplugs from injectors; release
injector harness from fuel rail and position
aside.
3.Remove 3 bolts securing PAS pump pulley and
remove pulley.
4.Loosen bolt securing jockey pulley and remove
pulley. 5.Remove 4 bolts and one nut securing auxiliary
housing and remove housing.
6.Remove 2 nuts securing alternator cables and
release the cables.
7.Remove two bolts securing alternator and
remove alternator.
8.Remove 4 bolts securing coolant outlet elbow
and remove outlet elbow.
9.Remove and discard 'O' ring.
10.Release ht leads from rocker covers.

ENGINE - V8
12-2-48 OVERHAUL
10.Clean mating faces of rocker covers and
cylinder heads.
11.Fit new rocker cover gaskets, dry, position
rocker cover, fit bolts and working in diagonal
sequence, tighten to:
lStage 1 - 3 Nm (2.5 lbf.ft)
lStage 2 - 8 Nm (6 lbf.ft)
12.Ensure that outer rim of gasket is correctly
positioned around periphery of rocker cover.
13.Secure ht leads to rocker cover.
14.Clean coolant outlet elbow mating faces.
15.Lubricate and fit new 'O' ring to outlet pipe.
16.Position coolant outlet elbow, fit bolts and
tighten to 22 Nm (17 lbf.ft).
17.Position alternator, fit mounting bolts and
tighten to 45 Nm (34 lbf.ft).
18.Position alternator cables and tighten terminal
B+ to 18 Nm (13 lbf.ft) and terminal D+ to 5 Nm
(3.5 lbf.ft).
19.Position auxiliary housing, fit bolts and tighten
to 40 Nm (30 lbf.ft). Fit nut and tighten to 22 Nm
(17 lbf.ft).
20.Clean jockey pulley mating faces.
21.Position jockey pulley and tighten bolt to 50 Nm
(37 lbf.ft).
22.Clean PAS pump pulley mating faces.
23.Position PAS pump pulley, fit bolts and tighten
to 22 Nm (17 lbf.ft).
24.Secure injector harness and connect injector
multiplugs.
25.Connect multiplug to coolant thermistor.
Gasket - exhaust manifold
$% 30.15.12.01
Disassembly
1.Remove 8 bolts securing exhaust manifold and
collect spacers. Discard the bolts.
2.Remove exhaust manifold.
3.Remove 2 manifold gaskets and discard.
Reassembly
1.Clean exhaust manifold and cylinder head
mating face.
CAUTION: Do not use a metal scraper or
machined surfaces may be damaged.
2.Fit new gaskets, dry, fit exhaust manifold.
CAUTION: Ensure that link bar on gasket is
positioned below spark plugs.
LH bank illustrated
3.Fit spacers to new manifold bolts and, working
in the sequence illustrated, initially tighten bolts
to 15 Nm (11 lbf.ft), then finally tighten to 38 Nm
(28 lbf.ft).

ENGINE - V8
OVERHAUL 12-2-55
Reassembly
1.Clean seal register in timing gear cover and
crankshaft pulley.
2.Apply Retinax LX grease to inner recess of new
oil seal until recess is half filled with grease.Do
not allow grease to coat any other part of
seal. Do not apply oil to seal.
3.Apply smear of Retinax LX grease to seal
running surface on crankshaft.
4. Fit seal to timing gear cover using tool LRT-12-
089 .
5.Secure tool LRT-12-080 to crankshaft pulley
with 2 bolts. Fit crankshaft pulley.
6.Fit crankshaft pulley bolt and tighten to 270 Nm
(200 lbf.ft).
7.Remove tool LRT-12-080 from crankshaft
pulley.
Gasket - timing gear cover
$% 12.65.04.01
Disassembly
1.Remove oil pick up strainer.

+ ENGINE - V8, OVERHAUL, Strainer
- oil pick-up.
2.Remove and discard 3 bolts securing coolant
pump pulley.
3.Remove coolant pump pulley.
4.Secure tool LRT-12-080 to crankshaft pulley
with 2 bolts.
5.Remove crankshaft pulley bolt.
6.Remove crankshaft pulley.

ENGINE - V8
OVERHAUL 12-2-57
6.Apply smear of Retinax LX grease to oil seal
running surface on crankshaft.
7. Fit seal to timing gear cover using tool LRT-12-
089.
8.Clean and fit crankshaft pulley.
9.Fit crankshaft pulley bolt and tighten to 270 Nm
(200 lbf.ft).
10.Remove tool LRT-12-080 from crankshaft
pulley.
11.Clean oil filter mating face.
12.Lubricate new oil filter seal with clean engine oil
and fit filter.
13.Ensure coolant pump and pulley mating faces
are clean.
14.Remove all traces of thread locking material
from coolant pump pulley drive flange bolt
holes using an M8 tap.
15.Fit coolant pump pulley and tighten new
Patchlok bolts to 22 Nm (16 lbf.ft).
16.Fit oil pick up strainer.

+ ENGINE - V8, OVERHAUL, Strainer
- oil pick-up.
Timing chain and gears
$% 12.65.12.01
Disassembly
1.Remove timing gear cover gasket.

+ ENGINE - V8, OVERHAUL, Gasket -
timing gear cover.
2.Fit crankshaft pulley bolt and rotate engine to
align timing marks. Remove crankshaft pulley
bolt.