1995 LAND ROVER DISCOVERY oil type

GENERAL SPECIFICATION DATA
19
INFORMATION Piston rings
Type:
- Top Barrel edge, chrome plated........................................................................
- Second Taper faced..................................................................
- Oil control Expander and rails..............................................................
Gap in bore:
- Top 0,40 - 0,60 mm........................................................................
- Second 0,30 - 0,50 mm..................................................................
- Oil control 0,3 - 0,6 mm..............................................................
Clearance in piston grooves:
- Second 0,050 - 0,085 mm..................................................................
- Oil control 0,050 - 0,085 mm..............................................................
Camshaft
Drive 30 mm wide dry toothed belt.................................................................................
Location Right hand side (thrust side)...........................................................................
End float 0,1 - 0,2 mm...........................................................................
Number of bearings 4..........................................................
Material Steel shell, white metal lined............................................................................
Valves
Tappet clearance:
- Inlet and exhaust 0,20 mm...................................................
Seat angle:
- Inlet 30° .......................................................................
- Exhaust 45° .................................................................
Head diameter:
- Inlet 38,75 - 39,05 mm.......................................................................
- Exhaust 36,35 - 36,65 mm.................................................................
Stem diameter:
- Inlet 7,960 - 7,975 mm.......................................................................
- Exhaust 7,940 - 7,960 mm.................................................................
Valve lift:
- Inlet 9,67 mm.......................................................................
- Exhaust 9,97 mm.................................................................
Cam lift:
- Inlet 6,81 mm.......................................................................
- Exhaust 7,06 mm.................................................................
Valve head stand down
- Inlet 0,81 - 1,09 mm.......................................................................
- Exhaust 0,86 - 1,14 mm.................................................................
Valve springs
Type Single coil.................................................................................
Length, free 46,28 mm......................................................................
Length, under 21 kg load 40,30 mm.................................................

04GENERAL SPECIFICATION DATA
20
INFORMATION Lubrication
System Wet sump, pressure fed.............................................................................
Pressure, engine warm at normal operating speeds 25 - 55lbf/in
2= 1,76 - 3,87Kgf cm2........
Oil pump:
- Type G-rotor integral with front cover.......................................................................
- Drive off crankshaft nose.....................................................................
Oil pressure relief valve Non-adjustable....................................................
Relief valve spring:
- Full length 51,6mm......................................................................
- Compressed length at 7.71Kg load 31mm................................
Oil filter Screw-on disposable canister.............................................................................
Engine oil cooler Combined with coolant radiator and intercooler...............................................................
FUEL SYSTEM - 300 Tdi
Fuel lift pump type Mechanical with hand primer............................................................
Fuel lift pump pressure 42 - 55 kpa at 1800 rpm.....................................................
Fuel filter Paper element in disposable canister..........................................................................
Air cleaner Paper element type........................................................................
COOLING SYSTEM - 300 Tdi
System type Pressurised, spill return, thermostatically controlled.....................................................................
water and anti freeze mixture. Pump assisted thermo
syphon. Coolant radiator combined with oil cooler and
turbo intercooler.
Cooling fan 11 blade axial flow 433 mm diameter. 1.29:1 drive.......................................................................
ratio. Viscous coupling.
Pump type Centrifugal, impellor, belt driven.........................................................................
Thermostat opening 88° .........................................................
Expansion tank cap pressure 15lbf/in
2= 1,06Kgf cm2(system pressure) ...........................................
CLUTCH - 300 Tdi
Type Valeo diaphragm spring.................................................................................
Centre plate diameter 235 mm.......................................................
Facing material Verto F202 grooved.................................................................
Release bearing Ball journal...............................................................

04GENERAL SPECIFICATION DATA
22
INFORMATION ENGINE - Mpi - 2.0 LITRE
Type 20 T4 - 16 valve twin overhead camshaft.................................................................................
Cylinder arrangement 4 in line.......................................................
Bore 84.45 mm.................................................................................
3.325 in
Stroke 89.00 mm...............................................................................
3.504 in
Capacity 1994 cm
3...........................................................................
121.68 in3
Firing order 1-3-4-2.......................................................................
Compression ratio 10 : 1............................................................
Oil pump
Outer rotor to body clearance 0.05 to 0.10 mm..........................................
Inner rotor tip clearance 0.025 to 0.12 mm...................................................
Outer rotor end float 0.03 to 0.08 mm.........................................................
Oil pressure relief valve
Spring free length 42.0 mm.............................................................
Cooling system
Starts to open 82 to 86°C ...................................................................
Thermostat fully open 88°C .......................................................
Open travel A 9 mm...................................................................
Camshaft
Camshaft end-float 0.06 to 0.25 mm...........................................................
Bearing clearance 0.060 to 0.094 mm............................................................
Service limit 0.15 mm.............................................................
Timing belt tensioner
Spring free length 57.5 to 58.5 mm.............................................................
Cylinder head
Longitudinal warp - maximum 0.1 mm.................................
Transverse warp - maximum 0.1 mm...................................
Diagonal warp - maximum 0.1 mm......................................
Cylinder head height 135.0 to 135.1 mm...............................................
Valve springs
Free length 46.25 mm.......................................................................
Fitted length 37.0 mm.....................................................................
Load at fitted length 255±12 N ..........................................................
Load at valve open length 560±22.5 N ................................................

ENGINE TUNING DATA
1
INFORMATION ENGINE 3.9 V8i
Type3.9 Litre V8i .................................................................................
Firing order1-8-4-3-6-5-7-2 .....................................................................
Cylinder Numbers
Left bank 1-3-5-7..........................................................................
Right bank 2-4-6-8........................................................................
No 1 Cylinder locationPulley end of left bank ...................................................
Timing marksOn crankshaft vibration damper ..................................................................
Spark plugs
Make/type(8.13:1 Compression) Champion RN11YCC......................................
Gap 0.84-0.96mm..................................................................................
Make/type(9.35:1 Compression) Champion RN11YCC......................................
Gap 0.84-0.96mm..................................................................................
Coil
Make/type Bosch 0-221-122-392,........................................................................
Compression ratio8.13:1 or 9.35:1 .........................................................
Fuel injection systemLucas 14 CUX Hot-wire air flow sensor system .....................................................
electronically controlled
Valve Timing Inlet Exhaust
Opens 32°BTDC .............................................................................. 70°BBDC
Closes 73°ABDC .............................................................................. 35°ATDC
Duration 285° ........................................................................... 285°
Valve peak 104°ATDC ....................................................................... 114°BTDC
Idle speed - controlled by MFI system
- all loads off in neutral 665 to 735 rev/min.....................................................
- auto gearbox in gear, air con operating 650±28 rev/min .........................
- auto gearbox in gear, air con off 600±28 rev/min ....................................
- manual gearbox 700±28 rev/min .............................................................
- manual gearbox, air con operating 750±28 rev/min ................................
Base idle speed525±25 rev/min
See FUEL SYSTEM, Fault..............................................................
diagnosis, Base idle speed setting.
Ignition Timing - dynamic at 800 rev/min max,
vacuum disconnected
8.13:1 compression, non catalyst 2°BTDC±1° .....................................
9.35:1 compression, non catalyst 4°BTDC±1° .....................................
9.35:1 compression, catalyst 5°BTDC±1° ............................................
Exhaust gas
CO content at idle 0.5 to 1.0% max.............................................................

ENGINE TUNING DATA
3
INFORMATION ENGINE 4.0 V8
Type4.0 Litre V8 .................................................................................
Firing order1-8-4-3-6-5-7-2 .....................................................................
Cylinder Numbers
Left bank 1-3-5-7..........................................................................
Right bank 2-4-6-8........................................................................
No 1 Cylinder locationPulley end of left bank ...................................................
Spark plugs
Make/type Champion RN11YCC........................................................................
Gap 0.90 - 1.00 mm.................................................................................. 0.035 - 0.040 in
Coils
Make Lucas 2D1S2................................................................................
Type Twin coils, bank of 4.................................................................................
High Compression Low Compression
Compression ratio 9.35:1............................................................ 8.2:1
Fuel injection systemSagem - Lucas GEMS8 Hot-wire air flow sensor .....................................................
system electronically controlled
Valve Timing Inlet Exhaust
Opens 28°BTDC .............................................................................. 66°BBDC
Closes 77°ABDC .............................................................................. 39°ATDC
Duration 285° ........................................................................... 285°
Valve peak 108°ATDC ....................................................................... 110°BTDC
Idle speed - controlled by GEMS system
all loads off 700±20 rev/min ..............................................................
Base idle speedNot adjustable ..............................................................
Idle air control valve position, checked viaTestBook
CO at idle
vehicles without heated oxygen sensors 1.5% ñ 0.5%.................
Fuel
9.35:1 catalyst 95 RON minimum unleaded.................................................................
USA vehicles - Premium unleaded (PUG) 95 RON minimum.......................
8.2:1 catalyst 91 RON minimum unleaded.................................................................
Non catalyst 91 RON minimum unleaded or leaded.........................................................

05ENGINE TUNING DATA
6
INFORMATION ENGINE - Mpi - 2.0 LITRE
Type/Capacity 20 T4/1994 cm
3..................................................................
Firing order 1-3-4-2.......................................................................
Compression ration 10 : 1..........................................................
Idle speed:
Controlled by ECM 875±50 rev/min ...........................................................
Exhaust gas Co content:
- Catalyst 0.5% Max. Not adjustable..................................................................
- Non Catalyst 1,0±25% adjustable using Testbook .........................................................
Ignition
Knock sensor ADU 8229...................................................................
Crankshaft sensor ADU 7340............................................................
Ignition Coils
Type NEC 10049.................................................................................
Primary resistance at 20°C 0.4 to 0.61 ohm..............................................
Consumption - engine idling 0.25 to 0.75 amp.............................................
Spark Plugs
Type/Gap GSP 6662 -0,85 mm.........................................................................
Multipoint Fuel Injection
Type Indirect multipoint injection with engine control module.................................................................................
using speed/density method of air flow measurement.
Fuel pressure regulator MKW 10011....................................................
Fuel pump delivery pressure 2.3 - 2.5 bar............................................
Throttle potentiometer voltage
- Throttle closed 0 - 1 Volt......................................................
- Throttle open 4 - 5 Volts.........................................................
MEMS engine control module MKC 10121..........................................
95 RON minimum -UNLEADEDfuel
CAUTION: Do not use LEADED fuel as it will
damage the catalyst. Serious damage to the
engine may occur if a lower octane number fuel
than that recommended is used.

07GENERAL FITTING REMINDERS
2
INFORMATION PREPARATION
1.Before removing a component, clean it and its
surrounding areas as thoroughly as possible.
2.Blank off any openings exposed by component
removal, using greaseproof paper and masking
tape.
3.Immediately seal fuel, oil or hydraulic lines when
separated, using plastic caps or plugs, to
prevent loss of fluid and entry of dirt.
4.Close open ends of oilways, exposed by
component removal, with tapered hardwood
plugs or readily visible plastic plugs.
5.Immediately a component is removed, place it in
a suitable container; use a separate container for
each component and its associated parts.
6.Before dismantling a component, clean it
thoroughly with a recommended cleaning agent;
check that agent is suitable for all materials of
component.
7.Clean bench and provide marking materials,
labels, containers and locking wire before
dismantling a component.
DISMANTLING
1.Observe scrupulous cleanliness when
dismantling components, particularly when
brake, fuel or hydraulic system parts are being
worked on. A particle of dirt or a cloth fragment
could cause a dangerous malfunction if trapped
in these systems.
2.Blow out all tapped holes, crevices, oilways and
fluid passages with an air line. Ensure that any
O-rings used for sealing are correctly replaced or
renewed, if disturbed.
3.Use marking ink to identify mating parts, to
ensure correct reassembly. If a centre punch or
scriber is used they may initiate cracks or
distortion of components.
4.Wire together mating parts where necessary to
prevent accidental interchange (e.g. roller
bearing components).
5.Wire labels on to all parts which are to be
renewed, and to parts requiring further
inspection before being passed for reassembly;
place these parts in separate containers from
those containing parts for rebuild.
6.Do not discard a part due for renewal until after
comparing it with a new part, to ensure that its
correct replacement has been obtained.INSPECTION-GENERAL
1.Never inspect a component for wear or
dimensional check unless it is absolutely clean;
a slight smear of grease can conceal an incipient
failure.
2.When a component is to be checked
dimensionally against figures quoted for it, use
correct equipment (surface plates, micrometers,
dial gauges, etc.) in serviceable condition.
Makeshift checking equipment can be
dangerous.
3.Reject a component if its dimensions are outside
limits quoted, or if damage is apparent. A part
may, however, be refitted if its critical dimension
is exactly limit size, and is otherwise satisfactory.
4.Use 'Plastigauge' 12 Type PG-1 for checking
bearing surface clearances. Directions for its
use, and a scale giving bearing clearances in
0,0025 mm steps are provided with it.

GENERAL FITTING REMINDERS
7
INFORMATION COTTER PINS
1.Fit new cotter pins throughout when replacing
any unit.
2.Always fit cotter pins where cotter pins were
originally used. Do not substitute spring
washers: there is always a good reason for the
use of a cotter pin.
3.All cotter pins should be fitted as shown unless
otherwise stated.
NUTS
1.When tightening a slotted or castellated nut
never loosen it back to insert cotter pin or locking
wire except in those recommended cases where
this forms part of an adjustment. If difficulty is
experienced, alternative washers or nuts should
be selected, or washer thickness reduced.
2.Where self-locking nuts have been removed it is
advisable to replace them with new ones of the
same type.
NOTE: Where bearing pre-load is involved
nuts should be tightened in accordance
with special instructions.
LOCKING WIRE
1.Fit new locking wire of the correct type for all
assemblies incorporating it.
2.Arrange wire so that its tension tends to tighten
the bolt heads, or nuts, to which it is fitted.SCREW THREADS
1.Both UNF and Metric threads to ISO standards
are used. See below for thread identification.
2.Damaged threads must always be discarded.
Cleaning up threads with a die or tap impairs the
strength and closeness of fit of the threads and
is not recommended.
3.Always ensure that replacement bolts are at
least equal in strength to those replaced.
4.Do not allow oil, grease or jointing compound to
enter blind threaded holes. The hydraulic action
on screwing in the bolt or stud could split the
housing.
5.Always tighten a nut or bolt to the recommended
torque value. Damaged or corroded threads can
affect the torque reading.
6.To check or re-tighten a bolt or screw to a
specified torque value first loosen a quarter of a
turn, then re-tighten to the correct value.
7.Oil thread lightly before tightening to ensure a
free running thread, except in the case of
threads treated with sealant/lubricant, and
self-locking nuts.
UNIFIED THREAD IDENTIFICATION
1. Bolts
A circular recess is stamped in the upper surface
of the bolt head.
2. Nuts
A continuous line of circles is indented on one of
the flats of the hexagon, parallel to the axis of
the nut.
3. Studs, Brake Rods, etc.
The component is reduced to the core diameter
for a short length at its extremity.