Defender 90 NAS. Manual — part 7
04
GENERAL SPECIFICATION DATA
14
INFORMATION
WHEELS AND TYRES
Wheel size - Alloy
7J X 16
. . . . . . . . . . . . . . . .
Tyre size
265/75 - R16 MULTI-TERRAIN
. . . . . . . . . . . . . . . . . . ..
Tyre pressures:
Front
Rear
Normal - all load conditions
265/75 R16 All Terrain
. . . . . . . . . . . ..
Front
1,9 bar
. . . . . . . .
28 lbf/in
2
Rear
2,4 bar
. . . . . . . . .
35 lbf/in
2
Soft ride*
Front
1.6 bar
. . . . . . . .
23 lbf/in
2
Rear
2,1 bar
. . . . . . . . .
30 lbf/in
2
* Soft ride pressure is for limitted use only and MUST
NOT be used above 55 mph, 85 km/h.
WARNING: Tyre pressures must be checked with the tyres cold, as the pressure is about 0.2 bar, 3
lbf/in
2
higher at running temperature. If the vehicle has been parked in the sun or high ambient
temperatures, DO NOT reduce the tyre pressures, move the vehicle into the shade and wait for the
tyres to cool before checking the pressures.
WARNING: Always use the same make and type of radial-ply tyres, front and rear. DO NOT use
cross-ply tyres, or interchange tyres from front to rear. If the wheel is marked ’TUBELESS’, an
inner tube must NOT be fitted.
VEHICLE DIMENSIONS
Overall length:
Soft top
3722 mm
. . . . . . . . . . . . . . . . .
146.5 in
Hard top
3883 mm
. . . . . . . . . . . . . . . . ..
152.9 in
Overall width (excluding mirrors):
1790 mm
. . . . . . . . . .
70.5 in
Overall height:
Soft top
1965 mm
. . . . . . . . . . . . . . . . .
77.4 in
Hard top
1972 mm
. . . . . . . . . . . . . . . . ..
77.6 in
Wheelbase
2360 mm
. . . . . . . . . . . . . . . . . ...
92.9 in
Track front/rear
1486 mm
. . . . . . . . . . . . . . . . .
58.5 in
Interior width between wheel boxes
925 mm
. . . . . . . . .
36.4 in
Turning circle
12.65m
. . . . . . . . . . . . . . . . .
41ft 6in
ENGINE TUNING DATA
1
INFORMATION
ENGINE 4.0 V8
Type
4.0 Litre V8
. . . . . . . . . . . . . . . . . . . . .
Firing order
1-8-4-3-6-5-7-2
. . . . . . . . . . . . . . . . . .
Cylinder Numbers
Left bank
1-3-5-7
. . . . . . . . . . . . . . . . . . ..
Right bank
2-4-6-8
. . . . . . . . . . . . . . . . . .
No 1 Cylinder location
Pulley 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
Double ended coil, bank of 4
. . . . . . . . . . . . . . . . . . . . .
Compression ratio
9.35:1 - High Compression
. . . . . . . . . . . . . . .
Fuel injection system
Make
Sagem - Lucas
. . . . . . . . . . . . . . . . . . . .
Type
GEMS Sequential Multipoint Fuel injection (SFi)
. . . . . . . . . . . . . . . . . . . . .
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 speed
Not adjustable
. . . . . . . . . . . . . . . ...
Idle air control valve position
Checked via TestBook
. . . . . . . . ...
CO at idle
Less than 0.5%
. . . . . . . . . . . . . . . . . . .
Gasoline
9.35:1 - USA vehicles
PREMIUM UNLEADED GASOLINE (PUG)
. . . . . . . . . . . . . ...
with a CLC or AKI octane rating of 90 or 92.
GENERAL FITTING REMINDERS
1
INFORMATION
GENERAL FITTING REMINDERS
WORKSHOP SAFETY IS YOUR RESPONSIBILITY!
The suggestions, cautions and warnings in the
section are intended to serve as reminders for
trained and experienced mechanics. This manual
is not a defnitive guide to automotive mechanics
or workshop safety.
Shop equipment, shop environment, and the use
and disposal of solvents, fluids, and chemicals
are subject to government regulations which are
intended to provide a level of safety. It is your
responsibility to know and comply with such
regulations.
PRECAUTIONS AGAINST DAMAGE
1. Always fit covers to protect fenders before
commencing work in engine compartment.
2. Cover seats and carpets, wear clean overalls
and wash hands or wear gloves before working
inside vehicle.
3. Avoid spilling hydraulic fluid or battery acid on
paint work. Wash off with water immediately if
this occurs. Use Polythene sheets to protect
carpets and seats.
4. Always use a recommended Service Tool, or a
satisfactory equivalent, where specified.
5. Protect temporarily exposed screw threads by
replacing nuts or fitting plastic caps.
SAFETY PRECAUTIONS
1. Whenever possible, use a lift when working
beneath vehicle in preference to jacking. Chock
wheels as well as applying parking brake.
WARNING: Do not use a pit when
removing fuel system components.
2. Never rely on a jack alone to support vehicle.
Use axle stands carefully placed at jacking
points to provide rigid support.
3. Ensure that a suitable form of fire extinguisher is
conveniently located.
4. Check that any lifting equipment used has
adequate capacity and is fully serviceable.
5. Disconnect battery negative lead.
WARNING: Do not disconnect any pipes in
air conditioning system, unless trained
and instructed to do so. A refrigerant is
used which can cause blindness if allowed to
contact eyes.
6. Ensure that adequate ventilation is provided
when volatile degreasing agents are being used.
7. Do not apply heat in an attempt to free stiff
fixings; as well as causing damage to protective
coatings, there is a risk of damage to electronic
equipment and brake linings from stray heat.
07
GENERAL FITTING REMINDERS
2
INFORMATION
PREPARATION
1. Clean components and surrounding area prior to
removal. 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 it has
been compared it with the new part, to ensure
the 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.
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