2002 LAND ROVER DISCOVERY oil filter

ENGINE - TD5
12-1-64 REPAIRS
Refit
1.Clean oil cooler and mating faces.
2.Fit oil pressure switch and tighten to 9 Nm (7
lbf.ft).
3.Position new gasket and fit oil cooler housing,
tighten bolts to 25 Nm (18 lbf.ft).
4.Position and fit oil filter adaptor housing,
tighten bolts to 25 Nm (18 lbf. ft).
5.Fit oil filter, tighten hand tight then a further half
turn.
6.Position coolant hose to oil cooler and secure
clip.
7.Position coolant pipe bolt and tighten to 50 Nm
(37 lbf.ft) .
8.Connect multiplug to oil pressure switch.
9.Fit centrifuge assembly.

+ ENGINE - Td5, REPAIRS, Gasket -
centrifuge oil drain pipe.
10.Refill cooling system.

+ COOLING SYSTEM - Td5,
ADJUSTMENTS, Drain and refill.
11.Top up engine oil.

+ MAINTENANCE, PROCEDURES,
Engine oil - diesel engine.
Gasket - centrifuge oil drain pipe
$% 12.60.90
Remove
1.Raise front of vehicle.
WARNING: Do not work on or under a
vehicle supported only by a jack. Always
support the vehicle on safety stands.
2.Remove fixings and remove underbelly panel.
3.Remove 2 bolts securing centrifuge drain to
engine sump and discard gasket. (Some
models are fitted with studs and nuts,
others with bolts).
4.Remove turbocharger.

+ ENGINE MANAGEMENT SYSTEM -
Td5, REPAIRS, Turbocharger.
5. Models with air conditioning: Remove
auxiliary drive belt.

+ CHARGING AND STARTING,
REPAIRS, Belt - auxiliary drive.
6. Models with air conditioning: Remove 4 bolts
securing compressor and move to one side.

ENGINE - TD5
OVERHAUL 12-1-77
23.Remove 3 bolts and remove fuel connector
block from cylinder head.
24.Remove gasket, discard 'O' ring and fuel filter.
25. If fitted: Remove spacer block and gasket.
Inspect
1.Thoroughly clean cylinder head mating faces,
ensure that EUI drillings, oil and coolant
passages are clear and bolt holes are clean
and dry.
2.Using suitable solvent, remove all traces of
sealant and gasket material.
CAUTION: Do not use metal scrapers.
3.Remove all traces of oil from camshaft bearings
and journals.
4.Clean glow plug threads.
5.Check core plugs for signs of leakage and
corrosion, seal replacement plugs with Loctite
243.6.Check cylinder head for warping across centre
and from corner to corner:
l Maximum cylinder head warp = 0.1 mm
(0.004 in)
Cylinder heads must not be refaced.
Replace the head assembly if warping
exceeds the limit.
7.Check lash adjuster bores for scoring and signs
of wear or damage.
8.Check lash adjusters for signs of wear, scoring
and overheating, replace as necessary.
Ensure oil hole in each lash adjuster is clear.
Store lash adjusters upright and in their
fitted order.
9.Check finger followers for wear and that rollers
are free to rotate. Store finger followers in
their fitted order.
10.Check camshaft lobes and bearing journals for
signs of scoring and wear.
11.Check bearing surfaces in cylinder head and
camshaft carrier for signs of scoring and wear.
Cylinder head and camshaft carrier are
machined together as an assembly. If
bearing surfaces in either component are
damaged, both components must be
replaced as an assembly.
12.Check camshaft end-float using following
procedures.
13.Position camshaft in camshaft carrier.

ENGINE - TD5
OVERHAUL 12-1-83
9.Using tool LRT-12-154/3, fit new sealing
washer to each injector.
10.Support each end of cylinder head on blocks of
wood ensuring blocks are clear of valves.
11.Position reaction posts in their original fitted
order.
12.Carefully fit EUI's, ensuring they are in their
original fitted order and that each retainer is
located on its dowel.
CAUTION: If new EUI's are fitted, ensure
replacements are correct. Engine Serial No.
Prefixes 10P to 14P – Push rod bushes are
coloured BLACK or BLUE. Serial No.
Prefixes 15P to 19P – Push rod bushes are
coloured GREEN.
13.Fit new retainer bolts and tighten to 32 Nm (24
lbf.ft).
If new injectors are fitted they must be
programmed for use with the ECM using
TestBook.
14.Lubricate lash adjusters and bores with engine
oil.
15.Fit lash adjusters ensuring they are in their
original fitted order.
16.Lubricate finger followers with engine oil.
17.Fit finger followers ensuring they are in their
original fitted order.
18.Lubricate cams and bearing journals on
camshaft, cylinder head and camshaft carrier
with engine oil.
19.Position camshaft in cylinder head with the
timing pin hole in the vertical position.20.Apply an even film of sealant, Part No. STC
4600 to camshaft carrier face and spread to an
even film using a roller.
CAUTION: Ensure sealant does not block
oilways (arrowed) or contaminate camshaft
bearings. Assembly and bolt tightening
must be completed within 20 minutes of
applying sealant.
21.Fit camshaft carrier ensuring it is correctly
located on dowels.
22.Fit and lightly tighten new camshaft carrier
bolts.
23.Using sequence shown, progressively tighten
bolts to 25 Nm (18 lbf.ft).
24.Lubricate a new camshaft rear oil seal with
engine oil, fit seal using a suitable mandrel.
25.Position rocker shaft on camshaft carrier
ensuring rocker shaft is located on dowel.
26.Fit new rocker shaft retaining bolts and working
from the centre outwards, tighten rocker shaft
bolts to 32 Nm (24 lbf.ft).
27.Fit injector harness and connect multiplugs.
28.Clean fuel connector block and mating face.
29.Lubricate a new fuel filter 'O' ring with engine
oil.

ENGINE - TD5
12-1-84 OVERHAUL
30.Fit new fuel filter, 'O' ring, and gasket.
CAUTION: Gasket must be fitted dry.
31. If fitted: Fit fuel connector spacer block and
gasket.
32.Fit fuel connector block, fit bolts and tighten to
25 Nm (18 lbf.ft).
33.Clean glow plugs.
34.Fit glow plugs to cylinder head and tighten to
16 Nm (12 lbf.ft).
35.Fit new cylinder head gasket.

+ ENGINE - Td5, OVERHAUL, Gasket
- cylinder head.
36. Engine Serial No. Prefixes 15P to
19P:Lubricate new 'O' rings with engine oil and
fit to spill return pipe, fit pipe and tighten
connectors to 20 Nm (15 lbf.ft).
37.Before fitting the camshaft cover, the fuel
injector rockers must be adjusted following the
procedures given in Cylinder head gasket -
Refit.

+ ENGINE - Td5, OVERHAUL, Gasket
- cylinder head.
Gasket - engine sump
$% 12.60.38.01
Disassembly
1.Remove 2 bolts securing centrifuge oil drain
pipe to sump, remove and discard gasket.
2.Using sequence shown and noting their fitted
positions, remove 20 bolts securing sump to
cylinder block.
3.Release sump from locating dowels, remove
sump; remove and discard gasket.
Reassembly
1.Clean sump and mating faces, ensure bolt
holes in cylinder block are clean and dry.
2.Using suitable solvent, remove all traces of
sealant from joint faces of timing chain cover
and crankshaft rear oil seal housing.
3.Clean centrifuge oil drain pipe and mating
faces.

ENGINE - V8
DESCRIPTION AND OPERATION 12-2-5
1Core plugs
2Cylinder block
3Camshaft
4Dipstick tube, clamp and bolt
5Woodruff key
6Timing chain
7Camshaft timing gear
8Washer
9Bolt - camshaft timing gear
10Thrust plate - camshaft end-float
11Bolt - camshaft thrust plate
12Gasket - timing cover
13Timing cover
14Oil pressure switch
15Bolt
16Crankshaft front oil seal
17Oil filter element
18Crankshaft front pulley
19Washer
20Bolt - crankshaft front pulley
21Upper main bearing shell
22Upper centre main bearing shell and thrust
washer
23Crankshaft
24Woodruff key
25Crankshaft timing gear
26Lower main bearing shells
27Numbers 1, 2 and 3 main bearing caps
28Bolt - main bearing caps
29Oil pick-up pipe and strainer
30'O' ring31Bolt - oil pick-up pipe
32Gasket - sump
33Sump
34Bolt - sump
35Sump oil drain plug
36Sealing washer
37Spacer, washers and nut - oil pick-up pipe
38Number 4 main bearing cap
39Bolt - connecting rod big-end bearing cap
40Connecting rod big-end bearing shell - lower
41Connecting rod big-end bearing cap
42Number 5 - rear main bearing cap
43Cruciform seal - rear main bearing cap
44Number 5 - rear main bearing shell
45Crankshaft rear oil seal
46Crankshaft knock sensor
47Side bolt - main bearing cap
48Side Allen bolt - main bearing cap
49Dowty washers
50Connecting rod big-end bearing shell - upper
51Connecting rod
52Piston
53Gudgeon pin
54Oil control ring
55Top compression ring
562nd compression ring
57Flywheel/drive plate and starter ring gear
58Bolt - flywheel/drive plate

ENGINE - V8
12-2-6 DESCRIPTION AND OPERATION
Description
General
The V8 petrol engine is an eight cylinder, water cooled unit having two banks of four cylinders positioned at 90 degrees
to each other. The engine comprises five main castings - two cylinder heads, cylinder block, timing cover and the oil
sump, all of which are manufactured from aluminium alloy.
NAS market vehicles from 03 model year receive a 4.6 litre version of the V8 engine to replace the previous 4.0 litre
version.
Cylinder heads
The cylinder heads are fitted with replaceable valve guides and valve seat inserts with the combustion chambers
formed in the head. Each cylinder head is sealed to the cylinder block with a gasket. The exhaust manifolds are bolted
to the outside of each cylinder head whilst the inlet manifolds are located in the centre of the 'Vee' and are bolted to
the inside face of each head. Inlet and exhaust manifolds are sealed to the cylinder heads by means of gaskets.
Each cylinder has a single inlet and exhaust valve. The exhaust valves are of the 'carbon break' type, a recess on the
valve stem prevents a build-up of carbon in the valve guide by dislodging particles of carbon as the valve stem moves
up and down the guide. Inlet and exhaust valve stem oil seals are fitted at the top of each valve guide. Valve operation
is by means of rocker arms, push rods and hydraulic tappets. Each of the rocker arms is located on a rocker shaft
which is supported by means of pedestals bolted to the cylinder heads. A spring, positioned on either side of each
rocker arm, maintains the correct relative position of the arm to its valve stem. The rocker arms are operated directly
by the push rods which pass through drillings in the cylinder heads and cylinder block. The bottom end of each push
rod locates in a hydraulic tappet operated by the single, chain driven camshaft.
The rocker covers are bolted to the cylinder heads and are sealed to the heads by a rubber gasket. Stub pipes for
crankcase ventilation hose connections are fitted to each rocker cover, the pipe in the right hand cover incorporates
an oil separator. The engine oil filler cap is situated in the right hand cover.
Cylinder block and camshaft
The cylinder block is fitted with cast iron cylinder liners which are shrink fitted and locate on stops in the block. The
camshaft is positioned in the centre of the cylinder block and runs in one piece bearing shells which are line bored
after fitting. Camshaft end-float is controlled by a thrust plate bolted to the front of the cylinder block. A timing gear,
chain driven by the crankshaft timing gear is bolted to the front of the camshaft.
Crankshaft and main bearings
The crankshaft is carried in five main bearings. The upper main bearing shell locations are an integral part of the
cylinder block casting. The lower main bearing caps are bolted to the cylinder block on either side of the upper bearing
shell locations with an additional bolt being inserted into each cap from either side of the cylinder block. The rear
main bearing cap carries the crankshaft rear oil seal and is sealed to the cylinder block by means of cruciform shaped
seals in each side of the cap. Number four main bearing cap carries the stud fixing for the oil pick-up pipe. Lower
main bearing shells are plain whilst the upper shells have an oil feed hole and are grooved. Crankshaft end-float is
controlled by the thrust faces of the upper centre shell. The crankshaft timing gear is located on the front of the
crankshaft by means of a Woodruff key which is also used to drive the gear type oil pump. The flywheel/drive plate
carries the crankshaft position sensor reluctor ring and is dowel located and bolted to the flywheel.
Timing cover
The timing cover is bolted to the front of the cylinder block and is sealed to the block with a gasket. The disposable,
full flow oil filter canister is screwed on to the timing cover which also carries the oil pressure switch, oil pressure relief
valve and crankshaft front oil seal. The gear type oil pump is integral with the cover which also has an internal oilway
to direct oil from the oil cooler to the filter.
NOTE: Oil coolers are only fitted to vehicles up to VIN 756821.

ENGINE - V8
12-2-8 DESCRIPTION AND OPERATION
Lubrication
A - To oil cooler, B - From oil cooler
NOTE: The oil cooler is only fitted to vehicles up to VIN 756821.
1Rocker shaft assembly
2Hydraulic tappet
3Oil pump
4Oil filter element
5Oil pick-up pipe and strainer
6Oil pressure switch
Oil is drawn from the sump through a strainer and into the oil pump via the oil pick-up pipe. Pressurised oil from the
pump passes through the oil cooler (if fitted) mounted in front of the radiator and returns to the full flow oil filter

ENGINE - V8
DESCRIPTION AND OPERATION 12-2-9
element. Oil from the filter passes into the main oil gallery and through internal drillings to the crankshaft where it is
directed to each main bearing and to the big-end bearings via numbers 1, 3 and 5 main bearings. An internal drilling
in the cylinder block directs oil to the camshaft where it passes through further internal drillings to the hydraulic
tappets, camshaft bearing journals and rocker shafts. Lubrication to the pistons, small ends and cylinder bores is by
oil grooves machined in the connecting rods and by splash.
Oil pressure switch
The oil pressure warning light switch registers low oil pressure in the main oil gallery on the outflow side of the filter.
Whilst the engine is running and oil pressure is correct, the switch is open. When the ignition is switched on or if oil
pressure drops below the pressure setting of the switch, the switch closes and the low oil pressure warning lamp
located in the instrument pack will illuminate.
Hydraulic tappets
1Clip
2Pushrod seat
3Inner sleeve
4Upper chamber5Non-return ball valve
6Spring
7Outer sleeve
8Lower chamber
The hydraulic tappet provides maintenance free, quiet operation of the valves. This is achieved by utilizing engine oil
pressure to eliminate the clearance between the rocker arms and valve stems. When the valve is closed, engine oil
pressure present in the upper chamber, passes through the non-return ball valve and into the lower chamber. When
the cam begins to lift the outer sleeve, the resistance of the valve spring, felt through the push rod and seat, causes
the tappet inner sleeve to move downwards inside the outer sleeve. This downwards movement closes the non-return
ball valve and increases the pressure in the lower chamber sufficiently to ensure that the valve is fully opened by the
push rod. As the tappet moves off the peak of the cam, the non-return ball valve opens thereby allowing the pressure
in both chambers to equalize. This ensures that the valve will be fully closed when the tappet is on the back of the
cam.
Crankcase ventilation
A positive crankcase ventilation system is used to vent crankcase gases to the air induction system. Gases are drawn
from the left hand rocker cover to a tapping in the throttle body. An oil separator is incorporated in the hose connection
stub pipe in the right hand rocker cover, gases from this connection are drawn to a tapping in the inlet manifold.

+ EMISSION CONTROL - V8, DESCRIPTION AND OPERATION, Crankcase emission control system.