1995 LAND ROVER DISCOVERY Workshop Manual

V8i
11
REPAIR FLEXIBLE DRIVE PLATE AND RING GEAR
Service repair no - 12.53.13
Remove
1.Remove transmission.
See AUTOMATIC
GEARBOX, Repair, LT230T Transfer Gearbox
with Automatic Gearbox Assembly - V8i
2.Remove flexible drive plate and ring gear
assembly.
See V8i Overhaul Manual.
Refit
3.Clean all components for reassembly.
4.Fit ring gear and flexible drive plate assembly.
See V8i Overhaul Manual.
5.Fit transmission.CRANKSHAFT REAR OIL SEAL
Service repair no - 12.21.20
1.Automatic transmission, remove drive plate.
See Flexible Drive Plate and Ring Gear
OR manual transmission, remove flywheel.See
Flywheel
2.Remove sump.See Oil Sump
3.Remove rear main bearing cap.
4.Remove cross seals from cap.
5.Remove crankshaft rear oil seal.
6.Clean main bearing cap and oil seal area of
block.
7.Fit new cross seals to bearing cap.
8.Apply Hylomar SQ32M to block as illustrated.
9.Lubricate bearing shell and cross seals using
clean engine oil.
10.Fit bearing cap, do not tighten bolts.
11.Ensure cap is fully home and seated squarely on
the block.

12ENGINE
12
REPAIR
12.Ensure service tools LRT-12-010 and
LRT-12-091 are scrupulously clean. Coat seal
guide and oil seal journal with clean engine oil.
CAUTION: Do not handle oilseal lip, check
it is not damaged. Ensure outside diameter
remains clean and dry.
13.Position oil seal guide LRT-12-010 on crankshaft
flange.
NOTE: Lubricant coating must cover seal
guide outer surface completely to ensure
that oil seal lip is not turned back during
assembly. Position oil seal, lipped side towards
engine, on seal guide. Seal outside diameter
MUST be clean and dry.
14.Fit oil seal using tool LRT-12-091. Remove seal
guide.
15.Tighten rear main bearing cap to
90 Nm.
16.Fit sump.
17.Fit flywheel or flexible drive plate and ring gear.ENGINE
Service repair no - 12.41.01
Remove
1.Park vehicle on level ground and apply park
brake.
2.De-pressurise fuel system.
See FUEL
SYSTEM, Repair, Depressurising Fuel
System
3.Remove bonnet [hood].See CHASSIS AND
BODY, Repair, Bonnet [Hood]
4.Remove battery.See ELECTRICAL, Repair,
Battery
5.Remove radiator/oil coolers.See COOLING
SYSTEM, Repair, Radiator/Oil Coolers
6.Place an absorbent cloth around fuel feed hose
at fuel rail and release compression nut.
Remove feed hose from rail, seal end of pipes
with masking tape to prevent ingress of dirt.
7.Release fuel return hose clamp and remove
hose from pressure regulator, seal both
openings with masking tape to prevent ingress of
dirt.
8.Remove vacuum hose from rear of regulator.
9.Manual vehicles: Disconnect throttle cable from
bracket. Automatic vehicles: Detach throttle
bracket from plenum chamber and lay assembly
to one side.
See FUEL SYSTEM, Repair,
Plenum Chamber DO NOT DISTURB KICK
DOWN CABLE SETTING.
10.Remove ram housing.See FUEL SYSTEM,
Repair, Ram Housing
11.Remove air flow sensor.See FUEL SYSTEM,
Repair, Air Flow Sensor
12.Remove air cleaner assembly.See FUEL
SYSTEM, Repair, Air Cleaner Assembly
13.Remove Generator.See ELECTRICAL,
Description and operation, Generator
14.Release air conditioning compressor from its
mounting and lay to one side. DO NOT
discharge air conditioning system.
See AIR
CONDITIONING, Repair, Compressor

V8i
13
REPAIR
NOTE: Release bolts securing compressor
mounting bracket to engine and remove
bracket to enable temporary lifting eye
ETC 5964 to be fitted. Secure lifting eye to
mounting bracket fixing points with suitable bolts
of equivalent size, pitch and thread. Leave lifting
eye attached until engine is reinstalled in vehicle.
15.Place drain tray underneath vehicle.
16.Disconnect hose from reservoir to power
steering pump. Secure hose end above level of
fluid reservoir to avoid unnecessary loss of fluid.
17.Disconnect power steering pump to power
steering box hose. Seal hose and pump
openings with masking tape to prevent ingress of
dirt. Wipe away any fluid spillage from chassis or
steering box.
18.Disconnect fuel temperature and coolant
temperature sensor multi-plugs.
19.Disconnect leads from coil.
20.Identify each injector multi-plug for re-assembly
and disconnect plugs from injectors.
21.Manoeuvre harness from behind fuel rails and
place to one side clear of engine assembly.
22.Remove two clamps securing gearbox oil cooler
pipes to engine block.
23.Remove engine mounting fixings on both sides
of cylinder block.
24.Fit lifting chains to engine lifting eyes as shown
in illustration RR1780E.
1. L/H Front chain 356mm total overall length.
2. R/H Front chain 330mm total overall length.
3. R/H Rear chain 457mm total overall length.
NOTE: All chain dimensions are measured
from end of lifting hook to end of last link
in chain.
25.Fit chain lifting eye to a suitable engine hoist.
Raise hoist high enough to enable engine
mountings to be removed, and withdraw rubber
mountings.
26.Lower hoist until engine rests securely on engine
mounting brackets. Remove lifting chains and
hoist.
27.Disconnect two heater hoses located on top of
right hand rocker cover.
28.Remove ground strap from rear of left hand
cylinder head. DO NOT remove from retaining
clip.
29.Remove all electrical harnesses from retaining
clips at rear of engine.
30.Remove transmission breather pipes from
retaining clip on rear lifting eye.
31.Remove top two bolts securing bell housing to
cylinder block.
32.Raise front of vehicle, lower vehicle on to axle
stands.
33.Remove bell housing bottom cover. Remove
gasket from bell housing face.
34.Remove nuts securing exhaust downpipes to
manifolds, remove heat shield from right hand
side downpipe.
35.Remove electrical leads from starter motor
solenoid. Disconnect multi-plug from oil level
sensor on side of sump, if fitted.
NOTE: Instructions 37, 38 and 39 refer to
automatic vehicles only.
36.With assistance rotate engine at crankshaft
pulley until two access holes in drive plate/ring
gear assembly are visible.
37.Remove two bolts visible through access holes.
Mark one access hole and one bolt hole to
ensure unit is reassembled in its original position
38.Rotate crankshaft 180Ê until two remaining
access holes are visible, remove two bolts.

12ENGINE
14
REPAIR
39.Remove remaining bell housing to cylinder block
bolts.
40.Remove starter motor ground strap from
chassis.
41.Remove stands and lower vehicle.
42.Position hydraulic trolley jack under bell housing
to support gearbox when engine and gearbox
are separated.
43.Fit lifting chains to engine. Carefully raise hoist a
little, ease engine and gearbox apart, steady
engine on hoist.
44.Ensure no components remain that will prevent
engine being removed.
45.Slowly raise engine clear of engine
compartment. Move engine away from vehicle
and place on a suitable engine stand.
Refit
46.Fit lifting chains to engine. Raise engine using
hoist.
47.Lower engine into engine compartment. Ensure
all components are clear of engine assembly.
48.Automatic vehicles: With assistance, manoeuvre
engine until bottom two engine and bellhousing
bolt holes align. Ensure that two cylinder block
dowels locate in bell housing.
Manual vehicles: Lower engine into position.
Locate primary pinion into clutch. Engage bell
housing dowels.
49.Fit two bolts and partially tighten.
50.Remove jack and lower hoist until engine rests
securely on engine mounting brackets.
51.Fit top two bell housing securing bolts. Tighten
to
40 Nm.
52.Fit remaining bell housing to cylinder block bolts.
Tighten to
40 Nm.
53.Automatic vehicles: With assistance, rotate
crankshaft pulley, line up marked holes in drive
plate and torque converter. Fit two bolts.
Tighten to
40 Nm.
54.Rotate crankshaft 180°and fit remaining two
bolts tighten to correct torque,
40 Nm.
55.Fit new gasket and refit bottom cover, tighten
bolts to
9 Nm.
56.Fit new exhaust flange gaskets, fit exhaust to
manifold.
57.Refit all harnesses, ground straps breather pipes
and hoses at rear of engine.
58.Raise engine and refit engine mounting rubbers,
tighten nuts to
20 Nm.
59.Remove temporary lifting eye ETC 5964 and
reverse instructions 1 to 23, ensuring that all
electrical plugs and harnesses are fitted in
correct locations.

V8i
15
REPAIR OIL SUMP
Service repair no - 12.60.44
Remove
1.Drain engine oil
See SECTION 10,
Maintenance, Under Vehicle Maintenance
2.Fit drain plug. Tighten to40 Nm.
3.If fitted, disconnect low oil level sensor multiplug.
4.Remove bolt securing dipstick tube to rocker
cover.
5.Working form the centre outwards, progressively
loosen and remove 17 bolts securing sump.
Remove sump.
6.Remove all traces of sealant from mating
surfaces of sump, cylinder block and front cover,
using a suitable solvent or plastic scraper.
7.Degrease mating surfaces of sump, cylinder
block and front cover.Refit
8.Apply RTV Hylosil White sealant to mating
surface of sump.
9.Position sump, tighten bolts finger tight.
10.Tighten bolts progressively in sequence shown.
Tighten to
18 Nm.
11.Fit bolt securing dipstick tube to rocker cover.
12.If fitted, connect low oil level sensor multiplug.

V8i
1
SPECIFICATIONS, TORQUE TORQUE VALUES
NOTE: Torque wrenches should be regularly checked for accuracy to ensure that all fixings are
tightened to the correct torque.
Nm
Engine
Adaptor plate to crankshaft 84........................................................................
Generator and power steering mounting bracket to cylinder head 30............
Cylinder head:
Stage 1: 20.............................................................................................
Stage 2: - Further 180°±5°
Drive plate to converter 39..............................................................................
Engine mountings to engine and chassis 55..................................................
Engine mounting rubbers to brackets 30........................................................
Flexible drive plate to crankshaft adaptor plate 41.......................................... **
Flywheel to crankshaft bolts 78....................................................................... **
Lifting eye to cylinder heads 39......................................................................
Main bearing cap rear bolts 92....................................................................... *
Oil sump drain plug 40....................................................................................
Oil sump to cylinder block 18..........................................................................
Rocker cover to cylinder head 9....................................................................
Rocker shaft bracket to cylinder head 38........................................................
Spark plug 21..................................................................................................
Starter motor attachment 44...........................................................................
* These bolts must have threads coated in lubricant EXP16A before assembly.
** These bolts must have threads coated in sealant Loctite 270
METRIC Nm
M5 6......................................................................................................
M6 9......................................................................................................
M8 25.....................................................................................................
M10 45...................................................................................................
M12 90...................................................................................................
M14 105..................................................................................................
M16 180..................................................................................................
UNC / UNF
1/4 9......................................................................................................
5/16 24...................................................................................................
3/8 39.....................................................................................................
7/16 78...................................................................................................
1/2 90.....................................................................................................
5/8 136....................................................................................................
NOTE: Torque values above are for all screws and bolts used except for those specified.

V8i
1
SERVICE TOOLS ENGINE
LRT-12-034 Spring compressor
MS1519A
LRT-12-010 Crankshaft rear seal guide
RO1014
LRT-12-052 Oil pressure test kit

4.0 V8
1
DESCRIPTION AND OPERATION DESCRIPTION
For description and operation refer to overhaul
manual 4.0/4.6 V8 engine.
CONTENT OF THIS SECTION
Only service repair operations not covered in engine
section V8i or unique to 4.0 V8 engines appear in the
repair sub-section of this section.