1995 LAND ROVER DISCOVERY battery

V8i
1
FAULT DIAGNOSIS ENGINE OIL PRESSURE TEST
Service tools:
LRT-12-052: Pressure test equipment
WARNING: Use suitable exhaust
extraction equipment, if test is being
carried out in workshop.
WARNING: If vehicle has been running,
engine oil will be hot, care must be taken
when fitting equipment to prevent
personal injury due to scalding.
Test
1.Check lubricant is to correct level.
2.Place vehicle on a ramp [hoist].
3.Disconnect battery negative lead. Remove oil
pressure switch.
4.Fit the test gauge.
5.Reconnect battery negative lead.
6.Start and run engine to normal operating
temperature.
7.At a steady engine speed of 2500 rev/min -
engine oil pressure reading should be - 2.75 bar
(40 lbf/in
2).
8.If the pressure is low - Remove and overhaul oil
pump
CYLINDER COMPRESSION - TEST
Equipment:
Compression pressure gauge
Test
1.Start and run engine until normal engine
operating temperature is achieved (thermostat
open).
2.Remove all spark plugs.
3.Disconnect both coil negative (WB) leads
4.Insert compression gauge, crank engine until
reading stabilises.
5.Expected readings, throttle fully open, battery
fully charged:
8.31:1 = 10.2-10.9 bar, 150-160lbf/in
2
9.35:1 = 11.5-12.2 bar, 170-180lbf/in2

V8i
3
FAULT DIAGNOSIS ENGINE STARTING PROBLEMS
Engine fails to crank in park or neutral (Automatic
Transmission)
1.Is battery in good state of charge?
NO -
See INTRODUCTION, Information,
Jump Starting
YES - Continue.
2.Is automatic transmission inhibitor switch faulty
or gear selection linkage incorrectly adjusted?
YES -
See AUTOMATIC GEARBOX, Repair,
Inhibitor Switch
,
NO -
See Electrical Trouble Shooting
Manual.
If problem is not diagnosed repeat tests, starting
at 1.
Engine fails to crank (Manual Transmission)
1.Is battery in good state of charge?
NO -
See INTRODUCTION, Information,
Jump Starting
YES -See Electrical Trouble Shooting
Manual.
If problem is not diagnosed repeat tests, starting
at 1.
Engine cranks but fails to start
1.Is the cranking speed fast enough (120 rpm)?
NO -
See INTRODUCTION, Information,
Jump Starting
If necessary also.See Electrical Trouble
Shooting Manual.
YES - Continue.
2.Is there combustion in any cylinder?
NO -
See ELECTRICAL, Fault diagnosis,
Lucas Constant Energy Ignition
System - V8i See Electrical Trouble
Shooting Manual.
YES - Continue.
3.Are the fuel supply, tank, pump, ventilation and
emission control systems in correct working
order or the fuel contaminated?
NO -
See FUEL SYSTEM, Repair, Fuel
Filter See FUEL SYSTEM, Repair,
Fuel Tank See FUEL SYSTEM, Repair,
Fuel pump and Sender Unit See
EMISSION CONTROL, Description and
operation, Emission control
If problem is not diagnosed repeat tests, starting
at 2.ENGINE RUNNING PROBLEMS
Engine runs at high speed but will not idle (stops)
Engine idle speed erratic Engine starts but stops
immediately
Engine stalls Engine misfires/hesitation
1.Multiport fuel injection.
See Electrical Trouble
Shooting Manual. See ELECTRICAL, Fault
diagnosis, Lucas Constant Energy Ignition
System - V8i
Check brake vacuum connections.See
BRAKES, Description and operation, Brake
Servo Unit
Check heater/ventilation unit vacuum
connections.
See HEATING AND
VENTILATION, Description and operation,
Heating and Ventilation Unit
If problem is not diagnosed continue.
2.Are HT leads correctly routed and clipped?
NO -
See ELECTRICAL, Repair, Distributor
- V8i
YES - Continue.
3.Is fuel supply, tank, pump, ventilation and
emission control systems in correct working
order or the fuel contaminated?
NO -
See FUEL SYSTEM, Repair, Fuel
Filter See FUEL SYSTEM, Repair,
Fuel Tank See FUEL SYSTEM, Repair,
Fuel Pump and Sender Unit See
EMISSION CONTROL, Description and
operation, Emission Control
If problem is not diagnosed repeat tests, starting
at 1.
Engine lacks power/poor performance
1.Is throttle travel restricted or cable incorrectly
adjusted?
YES - Check thickness of carpets.
See FUEL
SYSTEM, Repair, Throttle Cable See
FUEL SYSTEM, Repair, Accelerator
Pedal
NO - Continue.
2.Are the Ignition and Multiport Fuel Injection
systems in order?
NO -
See Electrical Trouble Shooting
Manual.A1 See ELECTRICAL, Fault
diagnosis, Lucas Constant Energy
Ignition System - V8i See
ELECTRICAL, Repair, Distributor - V8i
YES - Continue.

V8i
5
REPAIR CYLINDER HEADS - RENEW
Service repair no - 12.29.15
1.Remove cylinder heads and gaskets.
See
Cylinder Head Gaskets - Renew
2.Remove spark plugs.
3.Using spring compressor LRT-12-034, remove
seals, valves, collets, springs and caps.
CAUTION: Keep components in fitted
order
4.From left hand cylinder head, remove earth lead
studs.
5.Remove three bolts securing power steering
pump mounting bracket to cylinder head.
6.Remove four bolts securing generator mounting
bracket to cylinder head.
7.Right hand cylinder head, remove rear lifting
bracket.
8.Fit lifting bracket to new right hand cylinder
head.
9.Fit mounting brackets and earth lead studs to
new cylinder head. Tighten bolts to
30 Nm.
10.Regrind valves- refer to engine overhaul
publication
11.Lubricate valve stems, fit valves, springs, and
caps. Fit new inlet and exhaust valve stem seals.
12.Using spring compressor LRT-12-034, compress
springs, fit collets. Tap valve to check correct
collet seating.
13.Fit spark plugs.
14.Fit cylinder heads with new gaskets.
See
Cylinder Head Gaskets - Renew
ROCKER COVER - RIGHT HAND - RENEW
Service repair no - 12.29.41
1.Disconnect battery negative lead.
2.Disconnect purge pipe from charcoal canister at
plenum.
3.Remove breather pipe from rocker cover.
4.Remove coolant pipes from inlet manifold.
5.Remove spark plug leads from plugs and
retaining clips.
6.Remove four rocker cover bolts. Moving fuel
pipes aside, remove rocker cover.
7.Discard rocker cover gasket.
8.Remove plug lead retaining clips from rocker
cover, fit to new rocker cover.
9.Clean and dry rocker cover and cylinder head
mating faces, using Bostik cleaner 6001.
NOTE: Gasket fits one way round only. It
must be fitted accurately, first time.
Subsequent movement will destroy
bonding.
10.Apply Bostik 1775 impact adhesive to rocker
cover seal face and gasket, using a brush to
ensure an even film. Allow adhesive to become
touch dry.

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

4.0 V8
1
REPAIR CRANKSHAFT PULLEY
Service repair no - 12.21.01 - Crankshaft Pulley
Remove
1.Disconnect battery negative lead.
2.Remove cooling fan.
See COOLING SYSTEM,
Repair, Viscous Coupling, Fan Blades,
Pulley and Fan Cowl
3.Slacken 3 water pump pulley securing bolts.
4.Remove drive belt.
See ENGINE 3.9 V8,
Repair, Drive Belt Renew
5.Remove water pump pulley bolts. Remove water
pump pulley.
6.Raise and support front of vehicle.
7.Remove 9 bolts securing bell housing access
cover (2 dowel bolts).
8.Remove access plate.
NOTE: It will be necessary to have an
assistant position a large flat ended
screwdriver between ring gear and adaptor
plate to prevent ring gear rotating.
9.Remove crankshaft pulley bolt. Collect pulley
and tool.
Refit
10.Clean seal running surface on pulley.
11.Clean key and keyway.
12.Fit crankshaft pulley.
NOTE: It will be necessary to have an
assistant position a large flat ended
screwdriver between ring gear and adaptor
plate to prevent ring gear rotating.
13.Refit crankshaft pulley bolt. Tighten to
270 Nm.
14.Ensure mating faces between bell housing
access cover and mating face are clean.
15.Fit access cover.
16.Fit cover bolts. Tighten to
10 Nm.
17.Remove supports and lower vehicle.
18.Ensure mating faces between water pump pulley
and pump are clean.
19.Refit water pump pulley. Fit bolts finger tight.
20.Fit drive belt.
See ENGINE 3.9 V8, Repair,
Drive Belt Renew
21.Tighten water pump pulley bolts to Tighten to24
Nm.
22.Refit cooling fan.See COOLING SYSTEM,
Repair, Viscous Coupling, Fan Blades,
Pulley and Fan Cowl
23.Reconnect battery negative lead.

4.0 V8
3
REPAIR ENGINE ASSEMBLY
Service repair no - 12.41.01/99
Remove
1.Position vehicle on ramp.
2.Remove bonnet.
See CHASSIS AND BODY,Repair, Bonnet [Hood]
3.Remove radiator.See COOLING SYSTEM,
Repair, Radiator
4.Remove plenum chamber.See FUEL SYSTEM
SFI, Repair, Plenum Chamber
5.Remove mass air flow sensor.See FUEL
SYSTEM SFI, Repair, Mass Air Flow Sensor
(MAF Sensor)
6.Slacken hose clip securing bottom hose to
expansion tank.
7.Disconnect hose.
8.Remove 2 nuts securing expansion tank.
9.Remove nut and bolt securing expansion tank.
10.Remove expansion tank.
11.Disconnect servo vacuum hose from ram
housing.
12.Disconnect battery sensing lead Lucar from
generator.
13.Remove generator terminal cover.
14.Remove 2 terminal nuts and release leads from
terminals.
15.Release purge hose from ram pipe housing.
16.Position cloth to absorb fuel spillage.
17.Slacken clip securing fuel return hose to fuel rail.
18.Disconnect hose.
19.Plug connections.
20.Disconnect fuel feed hose union.
21.Plug connections. Position hoses aside.
22.Slacken clip securing heater return hose to pipe.
23.Disconnect hose.24.Slacken clip securing heater feed adaptor hose
to inlet manifold.
25.Remove bolt securing pipe bracket.
26.Disconnect feed hose from inlet manifold.
27.Disconnect hose/pipe assembly.
28.Disconnect leads from spark plugs and remove
ignition coils.
See FUEL SYSTEM SFI, Repair,
Ignition Coils
29.Disconnect fuel temperature sensor multiplug.
30.Disconnect coolant sensor multiplug.
31.Disconnect temperature gauge sensor lead.
32.Release camshaft sensor multiplug from bracket
and disconnect multiplug.
33.Disconnect oil pressure switch Lucar.
34.Disconnect air intake temperature sensor
multiplug.
35.Disconnect 8 injector multiplugs.
36.Remove 4 nuts securing harness brackets to
inlet manifold.
37.Release harness brackets.
38.Remove bolts securing gearbox breather pipes
to engine lifting bracket.

12ENGINE
4
REPAIR 39.Release battery positive lead terminal cover.
40.Remove terminal nut
41.Release terminal from battery.
42.Release fusebox main feed lead.
43.Position battery cable over engine.
44.Pivot jockey pulley downwards to release drive
belt tension.
45.Release belt from pulleys.
46.Remove drive belt.
47.Disconnect compressor multiplug
48.Remove 4 bolts securing compressor.
49.Remove heatshield.
50.Release compressor from bracket and tie aside.
51.Slacken clip securing PAS hose to pump.
52.Disconnect hose.
53.Plug hose and pump.
54.Disconnect PAS hose connection at pump and
steering box.
55.Release unions and remove hose.
56.Remove and discard 'O' rings.
57.Plug pump and steering box.
58.Remove LH and RH engine mounting nuts.
59.Position lifting chains and attach hooks to engine
lifting eyes.
60.Raise engine sufficiently to release engine
mountings.
61.Release engine mountings and remove.
62.Lower engine until it just rests on engine
mounting brackets.
63.Disconnect chains.
64.Raise ramp.
65.Remove catalytic converter/front pipe assembly.
See EMISSION CONTROL, Repair, Catalytic
Converter/Front Pipe - 4.0 V8
66.Remove 9 bolts securing bell housing bottom
cover. Note position of 2 dowel bolts.
67.Remove cover.
68.Remove locknut securing transfer box tie bar.
69.Remove 2 bolts securing tie bar to tranmission.
70.Remove tie bar.
71.Remove 2 and slacken 1 bolt, securing bell
housing access plate and position aside.
72.Mark drive plate to torque converter relationship.
73.With assistance, rotate crankshaft for access to
first bolt (torque converter to drive plate).
74.Remove first bolt.
75.Repeat steps for the remaining 3 bolts.
76.Remove 2 bolts securing crankshaft sensor
shield to engine backplate.
See FUEL SYSTEM
SFI, Repair, Crankshaft Position Sensor
(CKP Sensor)

4.0 V8
7
REPAIR 171.Route drive belt around pulleys.
172.Pivot tensioner downwards.
173.Align belt to tensioner and release tensioner.
174.Connect battery positive lead and tighten.
175.Secure terminal cover.
176.Align gearbox breather pipe, clip to engine lifting
eye and fit bolt. Tighten to
9 Nm.
177.Align and secure engine harness brackets to
inlet manifold and fit nuts. Tighten to
9 Nm.
178.Connect injector multiplugs.
179.Connect air intake temperature sensor multiplug.
180.Connect fuel temperature sensor multiplug.
181.Connect coolant temperature multiplug.
182.Connect temperature gauge connector.
183.Connect oil pressure switch Lucar.
184.Connect camshaft sensor multiplug and secure
to bracket.
185.Fit ignition coil bracket.
See FUEL SYSTEM
SFI, Repair, Ignition Coils
186.Position heater hose/pipe assembly.
187.Connect hose to inlet manifold.
188.Align pipe to bracket and fit bolt. Tighten to
9
Nm.
189.Tighten hose clip.
190.Connect heater return hose and tighten clip.
191.Remove plugs from fuel feed and return hose
connections.
192.Clean feed unions.
193.Connect return hose and tighten clip.
194.Connect feed hose union and tighten.
195.Remove cloth.
196.Connect purge hose.
197.Connect leads to generator, tighten terminal nuts
and fit cover.
198.Connect sensing Lucar.
199.Connect servo vacuum hose.
200.Position expansion tank and secure with fixings.
201.Connect hose and tighten clip.
202.Lower ramp.
203.Fit mass air flow sensor.
See FUEL SYSTEM
SFI, Repair, Mass Air Flow Sensor (MAF
Sensor)
204.Fit plenum chamber.See FUEL SYSTEM SFI,
Repair, Plenum Chamber
205.Fit radiator.See COOLING SYSTEM, Repair,
Radiator
206.Fit bonnet.See CHASSIS AND BODY, Repair,
Bonnet [Hood]
207.Reconnect battery negative lead.
208.Bleed power steering system.
See STEERING,
Repair, Power Steering System - Bleed
209.Drain engine oil and refill.See LUBRICANTS,
FLUIDS AND CAPACITIES, Information,
Recommended Lubricants and Fluids - USA
Vehicles
210.Start engine. Check for fuel, coolant and oil
leaks.FRONT COVER GASKET
Service repair no - 12.65.04 - Front Cover Gasket
Remove
1.Disconnect battery negative lead.
2.Drain cooling system.
See COOLING SYSTEM
V8, Adjustment, Coolant
3.Remove radiatorSee COOLING SYSTEM,
Repair, Radiator
4.Remove water pump pulley.See COOLING
SYSTEM, Repair, Viscous Coupling, Fan
Blades, Pulley and Fan Cowl
5.Slacken bottom hose clip. Remove hose from
water pump.
6.Raise vehicle on ramp.
7.Disconnect oil cooler hoses from front cover and
position aside. Plug hoses and connections.
8.Disconnect Lucar from oil pressure switch.