1995 LAND ROVER DISCOVERY ECU

12ENGINE
12
REPAIR FRONT COVER/TIMING GEAR HOUSING GASKET
Service repair no - 12.65.10
Remove
1.Remove timing belt and gears.
See Camshaft
Drive Belt and Gears
2.Remove fuel injection pump.See FUEL
SYSTEM, Repair, Fuel Injection Pump and
Timing
3.Remove engine oil sump.See Oil Sump
4.Remove oil pick up strainer.See Oil Pick-Up
Strainer
5.Remove bolts securing timing gear housing to
block.
6.Withdraw timing gear housing complete with
gasket.
7.Clean all gasket material from mating faces.
Refit
8.Fit slave guide studs to locate gasket.
9.Fit new gasket, over slave studs, to cylinder
block.
10.Align flats on oil pump with flats on crankshaft.
11.Fit front cover to block taking care not to damage
oil seal.
12.Secure with bolts of correct length in locations
where slave studs are not fitted (ST3482).
13.Remove slave studs and fit correct length bolts.
14.Tighten to
25 Nm.
15.Fit oil pick-up strainer.See Oil Pick-Up
Strainer
16.Fit oil sump.See Oil Sump
17.Refit fuel injection pump.See FUEL SYSTEM,
Repair, Fuel Injection Pump and Timing

Tdi
13
REPAIR OIL SUMP
Service repair no - 12.60.44
Remove
1.Disconnect battery negative lead.
2.Drain engine oil.
3.Slacken sump securing bolts and, using a sharp
knife, break sealant around sump flange.
4.Remove bolts and withdraw sump.
Refit
5.Clean mating faces of sump, timing gear housing
and cylinder block.
6.Apply a 2,0 mm bead of 'Hylosil RTV102' to the
sump flange, ensuring bead is applied inboard of
the bolt holes.
7.Secure sump to block with bolts. Tighten to
25
Nm.
8.Refill engine oil.See LUBRICANTS, FLUIDS
AND CAPACITIES, Information,
Recommended Lubricants and Fluids
9.Reconnect battery negative lead.OIL PICK-UP STRAINER
Service repair no - 12.60.20
Remove
1.Disconnect battery negative lead.
2.Drain engine oil.
3.Remove engine oil sump.
See Oil Sump
4.Remove bolts securing pipe support bracket.
5.Remove bolts from pipe flanges.
6.Withdraw pick-up strainer assembly.
Refit
7.Refit pick-up strainer assembly, fitting a new 'O'
ring seal at oil pump connection.
8.Apply Loctite 242E to the two screws at the
bearing cap. Tighten to
9 Nm.
9.Fit bolts to pipe flanges. Tighten to25 Nm.
10.Refit engine oil sump.See Oil Sump
11.Reconnect battery negative lead.

12ENGINE
14
REPAIR FLYWHEEL
Service repair no - 12.53.07
Remove
1.Disconnect battery negative lead.
2.Remove gearbox.
See MANUAL GEARBOX,
Repair, R380 Manual Gearbox
3.Remove clutch.See CLUTCH, Repair, Clutch
Assembly
4.Fit two long 8mm bolts into the clutch bolt holes,
diametrically opposite, to use as handles when
lifting the flywheel off the crankshaft.
5.Remove fan cowl
6.Fit crankshaft pulley retainer LRT-12-080 and
secure with four bolts, to restrain crankshaft
while removing flywheel retaining bolts.
7.Remove the bolts and lift off flywheel.
NOTE: To prevent excessive flywheel
run-out, ensure that the mating faces of
the flywheel and crankshaft are clean.Refit
8.Locate the flywheel on the crankshaft and
secure with new patched retaining bolts,
progressively tighten to
147 Nm.
9.Check the flywheel for possible run-out by
mounting a dial test indicator with the stylus in a
loaded condition resting on the flywheel face at a
radius of 114mm from the centre.
10.Turn the flywheel and check that run-out does
not exceed 0,05 to 0,07mm. Should run-out be
excessive, remove the flywheel and check again
for irregularities on the crankshaft and flywheel
mating faces and the dowel.
11.Reverse removal procedure. 1 to 6.

12ENGINE
16
REPAIR 8.Ensure housing seal is correctly seated in its
groove in new housing and seal assembly.
9.Fit new assembly, with former/guide in-situ, over
crankshaft flange, this action will eject
former/guide.
10.Secure assembly to cylinder block with five bolts
tightened to correct torque, removing slave studs
individually and inserting bolts.
11.Refit flywheel.
See Flywheel
12.Refit clutch.See CLUTCH, Repair, Clutch
Assembly
13.Refit gearbox.See MANUAL GEARBOX,
Repair, R380 Manual Gearbox
14.Reconnect battery negative lead.CRANKSHAFT BEARING BUSH
Service repair no - 12.21.45
1.Disconnect battery negative lead.
2.Remove gearbox.
See MANUAL GEARBOX,
Repair, R380 Manual Gearbox
3.Remove clutch.See CLUTCH, Repair, Clutch
Assembly
4.Remove flywheel.See Flywheel
5.Remove bearing bush.
NOTE: The bearing bush can be removed
by using one of the following methods.
Method 1.
Obtain a short length of steel rod of a diameter having
a good slide fit in the bore of the bush. Pack the bore
with grease and insert the steel rod into the end of the
bore, give a sharp blow with a hammer and the
grease should drive out the bush. It is recommended
that the bush and rod be covered by a suitable cloth
or rag to prevent grease from splashing.

12ENGINE
18
REPAIR 10.Apply sealant to flywheel housing mating face on
cylinder block (Fig. J5944).
11.Fit housing to cylinder block and secure with
bolts as removed. Tighten to
45 Nm.
12.Remove surplus sealant from block.
13.Refit starter motor.
14.Refit flywheel.
See Flywheel
15.Refit clutch.See CLUTCH, Repair, Clutch
Assembly
16.Refit gearbox.See MANUAL GEARBOX,
Repair, R380 Manual Gearbox
17.Reconnect battery negative lead.OIL FILTER
Service repair no - 12.60.01
Remove
1.Place drain tray under filter.
2.Unscrew filter anti-clockwise, using a strap or
spanner.
Refit
3.Smear clean engine oil on seal of new filter.
4.Screw on filter until sealing ring touches
machined face, then tighten a further half turn by
hand only. Do not over tighten.

Tdi
19
REPAIR OIL TEMPERATURE CONTROL VALVE
Service repair no - 12.60.69
Remove
1.Disconnect oil cooler pipes.
2.Remove two bolts and carefully withdraw
thermostat extension housing (1) complete with
O ring seal (2), thermostat (3), two washers (4)
and spring (5).
3.Clean adaptor housing.
4.Inspect all parts and renew as necessary.
Refit
5.Fit thermostat to extension housing ensuring pin
locates in hole.
6.Fit two washers and spring to thermostat.
7.Fit a new 'O' ring to extension housing.
8.Insert spring into adaptor and secure extension
housing to adaptor with bolts. Tighten to
9 Nm.
OIL FILTER HEAD GASKET
Service repair no - 12.60.03
Renew
1.Disconnect oil cooler pipes.
2.Disconnect pressure switch lead.
3.Remove securing bolts and withdraw head
complete with gasket.
4.Clean mating faces.
5.Refit head with new gasket.
6.Secure with bolts. Tighten to
45 Nm.
7.Refit pipes and reconnect pressure switch.

12ENGINE
20
REPAIR CYLINDER HEAD GASKET
Service repair no - 12.29.02
Remove
1.Disconnect battery negative lead.
2.Remove bonnet [Hood].
See CHASSIS AND
BODY, Repair, Bonnet [Hood]
3.Drain coolant.
4.Remove air cleaner assembly.
See FUEL
SYSTEM, Repair, Air Cleaner
5.Detach crankcase ventilation valve and side
breather hose from rocker cover and move to
one side.
6.Remove injection pipes.
7.Disconnect spill rail from fuel injectors.
8.Remove fuel injectors and sealing washers.
Identify each injector to the location from which it
is removed.
See FUEL SYSTEM, Repair,
Injectors
9.Remove inter-connecting harness from glow
plugs.
10.Remove glow plugs.
See FUEL SYSTEM,
Repair, Glow Plugs
11.Remove top hose, radiator to thermostat.
12.Disconnect by-pass hose from thermostat.
13.Disconnect hose, thermostat to water pump.
14.Disconnect water temperature sensor lead.
15.Remove hose inter-cooler to induction manifold.
16.Remove induction manifold.
See MANIFOLD
AND EXHAUST SYSTEM, Repair, Exhaust
Manifold - Tdi
17.Remove exhaust manifold and turbocharger
assembly.
See MANIFOLD AND EXHAUST
SYSTEM, Repair, Exhaust Manifold - Tdi
18.Disconnect heater hose from water pump and
move heater rail aside.
19.Disconnect heater hose from rear of cylinder
head.
20.Remove bolt securing air cleaner mounting
bracket to support strut.
21.Remove bolt securing harness bracket to
cylinder head.
22.Remove rear lifting bracket, this will also release
clips securing transmission and engine breather
pipes and multiplug. Note loose spacer under
clip securing engine breather pipe and multiplug.

Tdi
21
REPAIR 23.Remove rocker cover.
24.Remove nuts and bolts and withdraw rocker
shaft assembly.
25.Remove push rods, store as an identified set to
allow refitment to same location.
26.Remove valve stem caps.
27.Evenly slacken, then remove, bolts retaining
cylinder head to block. Two of the bolts also
secure the air cleaner mounting bracket.
28.Lift off cylinder head and remove gasket.
Refit
29.Ensure face of cylinder block is thoroughly clean.
30.Select new gasket of correct thickness.
CAUTION: Three thicknesses of gasket are
available, different thicknesses are
identified by the number of small holes
punched in the right hand side of the gasket. One
hole identifies the thinnest gasket and three holes
the thickest. When renewing gaskets the gasket
being fitted must be of the same thickness as the
one removed. Therefore if the removed gasket had
two holes punched in the side the replacement
gasket must also have two holes punched in the
side.
31.Place gasket on cylinder block with identification
holes positioned towards rear on right hand side
and side marked TOP uppermost.
32.Clean mating face of cylinder head.
33.Lower cylinder head onto block ensuring correct
location with dowels.