2002 LAND ROVER DISCOVERY fuel pump

ENGINE - TD5
OVERHAUL 12-1-73
11.Ensure engine is set to TDC firing - No.1
cylinder.
12.Check that mark on camshaft sprocket is
positioned between the 2 coloured links on
timing chain.
13.Position sprocket to camshaft, fit and lightly
tighten 3 new bolts then loosen bolts half a
turn.
14.Clean fixed guide Allen screw and apply
Loctite 242 to screw threads.
15.Fit fixed timing chain guide Allen screw and
tighten to 25 Nm (18 lbf.ft).
16.Clean timing chain tensioner and fit new
sealing washer.
17.Fit timing chain tensioner and tighten to 45 Nm
(33 lbf.ft).
18.Tighten camshaft sprocket bolts to 37 Nm (27
lbf.ft).
19.Remove tool LRT-12-058 from camshaft.
20.Lubricate a new 'O' ring with engine oil and fit to
camshaft sprocket access plug.21.Fit camshaft sprocket access plug.
22.Clean alternator/vacuum pump oil hose union.
23.Lubricate a new 'O' ring with engine oil and fit to
alternator/vacuum pump oil hose union.
24.Fit and tighten alternator/vacuum pump oil
hose union to 10 Nm (7 lbf.ft).
25.Fit bolt securing alternator strap bracket to
cylinder head and tighten to 25 Nm (18 lbf.ft).
26.Connect multiplugs to ECT sensor and EUI's.
CAUTION: Following cylinder head
overhaul, it will be necessary, before fitting
the camshaft cover to adjust the fuel
injector rockers using the following
procedures:
27.Rotate engine clockwise until No.1 EUI lobe is
at full lift.
28.Tighten No.1 rocker adjusting screw until the
EUI plunger is felt to 'bottom out'.
29.Loosen rocker adjusting screw 1 complete turn
to give EUI plunger the required bump
clearance and tighten rocker adjusting screw
to 16 Nm (12 lbf.ft).
CAUTION: Ensure screw does not turn as
locknut is tightened.
30.Carry out the above procedures for the
remaining 4 rocker arms.
31.After completion of rocker adjustment, slowly
rotate engine clockwise 2 complete turns by
hand to ensure that no EUI's are bottoming out
on their plungers.
32.Clean camshaft cover and mating face.
33.Fit new sealing washers and isolators as
necessary to camshaft cover.
34.Fit new camshaft cover gasket to cover.
CAUTION: Gasket must be fitted dry.

ENGINE - V8
12-2-26 REPAIRS
Engine assembly
$% 12.41.01.99
Remove
1.Drain engine oil and remove oil filter.
2.Remove radiator.

+ COOLING SYSTEM - V8, REPAIRS,
Radiator.
3.Remove upper inlet manifold.

+ MANIFOLDS AND EXHAUST
SYSTEMS - V8, REPAIRS, Gasket - inlet
manifold - upper - Without Secondary Air
Injection.
4.Remove ignition coil assemblies.
5.Position absorbent material to catch spillage
and disconnect fuel pipe from fuel rail.
CAUTION: Always fit plugs to open
connections to prevent contamination.
6.Release 2 hose clips and remove top hose.
7.Using a 15 mm spanner, release auxiliary drive
belt tension and remove drive belt. 8.Remove 3 bolts securing ACE pump, release
pump and tie aside.
9.Disconnect multiplug from A/C compressor.
10.Remove 4 bolts securing A/C compressor,
release compressor and tie aside.

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
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.

EMISSION CONTROL - V8
17-2-4 DESCRIPTION AND OPERATION
Evaporative emission system (with
positive pressure leak detection)
component layout (NAS only)
1Purge valve
2Service port
3Air filter canister
4EVAP canister breather tube
5Leak detection pump
6EVAP canister
7Vent pipe – fuel tank to EVAP canister
8Liquid vapour separator (metal)9Fuel filler cap
10Fuel filler
11Fuel tank breather assembly
12Vent hose
13Roll over valves (inside fuel tank)
14Fuel tank
15Purge line connection to engine manifold
M17 0208
3
1
7
4
14
11
6
8
10
13
12
15
2
5
9

EMISSION CONTROL - V8
DESCRIPTION AND OPERATION 17-2-5
Evaporative emission system control
diagram
1Battery
2Fuse 13 (engine compartment fusebox)
3Inertia switch
4Main relay (engine compartment fusebox)
5Engine Control Module (ECM)
6Purge Valve (black harness connector)
7Canister vent solenoid (CVS) valve – NAS
vehicles with vacuum type EVAP system leak
detection capability only8Leak detection pump – NAS vehicles with
positive pressure type EVAP system leak
detection capability only
9Fuel tank pressure sensor – NAS vehicles with
vacuum type EVAP system leak detection
capability only
10Instrument pack (MIL warning light)
M17 0210
12
3
4
5
6
7
9
8
10

EMISSION CONTROL - V8
DESCRIPTION AND OPERATION 17-2-9
Emission Control Systems
Engine design has evolved in order to minimise the emission of harmful by-products. Emission control systems are
fitted to Land Rover vehicles which are designed to maintain the emission levels within the legal limits pertaining for
the specified market.
Despite the utilisation of specialised emission control equipment, it is still necessary to ensure that the engine is
correctly maintained and is in good mechanical order so that it operates at its optimal condition. In particular, ignition
timing has an effect on the production of HC and NO
x emissions, with the harmful emissions rising as the ignition
timing is advanced.
CAUTION: In many countries it is against the law for a vehicle owner or an unauthorised dealer to modify or
tamper with emission control equipment. In some cases, the vehicle owner and/or the dealer may even be
liable for prosecution.
The engine management ECM is fundamental for controlling the emission control systems. In addition to controlling
normal operation, the system complies with On Board Diagnostic (OBD) system strategies. The system monitors and
reports on faults detected with ignition, fuelling and exhaust systems which cause an excessive increase in tailpipe
emissions. This includes component failures, engine misfire, catalyst damage, catalyst efficiency, fuel evaporative
loss and exhaust leaks.
When an emission relevant fault is determined, the fault condition is stored in the ECM memory. For NAS vehicles,
the MIL warning light on the instrument pack will be illuminated when the fault is confirmed. Confirmation of a fault
condition occurs if the fault is still found to be present during the driving cycle subsequent to the one when the fault
was first detected.

+ ENGINE MANAGEMENT SYSTEM - V8, DESCRIPTION AND OPERATION, Description - engine
management.
The following types of supplementary control system are used to reduce harmful emissions released into the
atmosphere from the vehicle:
1Crankcase emission control – also known as blow-by gas emissions from the engine crankcase.
2Exhaust emission control – to limit the undesirable by-products of combustion.
3Fuel vapour evaporative loss control – to restrict the emission of fuel through evaporation from the fuel
system.
4Fuel leak detection system (NAS only) – there are two types of system which may be used to check the
evaporative emission system for the presence of leaks from the fuel tank to purge valve.
aVacuum leak detection test – checks for leaks down to 1 mm (0.04 in.) in diameter.
bPositive pressure leak detection test – utilises a leak detection pump to check for leaks down to 0.5 mm (0.02
in.) in diameter.
5Secondary air injection system (NAS only) – to reduce emissions experienced during cold starting.
Crankcase emission control system
The concentration of hydrocarbons in the crankcase of an engine is much greater than that in the vehicle's exhaust
system. In order to prevent the emission of these hydrocarbons into the atmosphere, crankcase emission control
systems are employed and are a standard legal requirement.
The crankcase ventilation system is an integral part of the air supply to the engine combustion chambers and it is
often overlooked when diagnosing problems associated with engine performance. A blocked ventilation pipe or filter
or excessive air leak into the inlet system through a damaged pipe or a leaking gasket can affect the air:fuel mixture,
performance and efficiency of the engine. Periodically check the ventilation hoses are not cracked and that they are
securely fitted to form airtight connections at their relevant ports.
The purpose of the crankcase ventilation system is to ensure that any noxious gas generated in the engine crankcase
is rendered harmless by complete burning of the fuel in the combustion chamber. Burning the crankcase vapours in
a controlled manner decreases the HC pollutants that could be emitted and helps to prevent the development of
sludge in the engine oil as well as increasing fuel economy.

EMISSION CONTROL - V8
17-2-12 DESCRIPTION AND OPERATION
The catalytic converter's housings are fabricated from stainless steel and are fully welded at all joints. Each catalytic
converter contains two elements comprising of an extruded ceramic substrate which is formed into a honeycomb of
small cells with a density of 62 cells / cm
2. The ceramic element is coated with a special surface treatment called
'washcoat' which increases the surface area of the catalyst element by approximately 7000 times. A coating is applied
to the washcoat which contains the precious elements Platinum, Palladium and Rhodium in the following relative
concentrations: 1 Pt : 21.6 PD : 1 Rh
Catalytic converters for NAS low emission vehicles (LEVs) from 2000MY have active constituents of
palladium and rhodium only. The active constituents are 14PD: 1Rh and the palladium coating is used to
oxidise the carbon monoxide and hydrocarbons in the exhaust gas.
The metallic coating of platinum and palladium oxidize the carbon monoxide and hydrocarbons and convert them into
water (H
2O) and carbon dioxide (CO2). The coating of rhodium removes the oxygen from nitrogen oxide (NOx) and
converts it into nitrogen (N
2).
CAUTION: Catalytic converters contain ceramic material, which is very fragile. Avoid heavy impacts on the
converter casing.
Downstream of the catalytic converters, the exhaust front pipes merge into a single pipe terminating at a flange joint
which connects to the exhaust intermediate pipe.
WARNING: To prevent personal injury from a hot exhaust system, do not attempt to disconnect any
components until the exhaust system has cooled down.
CAUTION: Serious damage to the catalytic converter will occur if leaded fuel is used. The fuel tank filler neck
is designed to accommodate only unleaded fuel pump nozzles.
CAUTION: Serious damage to the engine may occur if a lower octane number fuel than recommended is used.
Serious damage to the catalytic converter will occur if leaded fuel is used.
Heated oxygen sensor
1Connection cable
2Disc spring
3Ceramic support tube
4Protective sleeve
5Clamp connection for heating element
6Heating element
7Contact element8Sensor housing
9Active sensor ceramic
10Protective tube
11Post-catalytic converter sensor (NAS spec.
only)
12Pre-catalytic converter sensor