wheel MITSUBISHI MONTERO 1989 1.G Workshop Manual

x
Service Manual
MONTCRO
GROUP INDEX NrJDAA-A
Introduction and
Master Troubleshooting ......*....*...*..
Lubrication and Maintenance . . . . . . . . .
m.
1989 : Volume 1
FOREWORD
This Service Manual has been prepared with the
latest service information available at the time of
publication. It is subdivided into various group
categories and each section contains diagnosis,
disassembly, repair, and installation procedures
along with complete specifications and tightening
references. Use of this manual will aid in properly
performing any servicing necessary to maintain or
restore the high levels of performance and reliability
designed into these outstanding vehicles.
4liP A
.
n
WESUPPORT
VOLUNTARY TECHNICIAN
CE,TT,flCA~ONMROUGH
MITSUBISHI MOlUR SALES OF AMERICR Inr
Mitsubishi Motors corporation reserves the right to make changes in
design or to make additions to or improvements in its products without
imposing any obligations upon itself to install them on its products
previously manufactured.
Front Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . y
Rear Axle *.......*.......*................a.....*..
m
Service
Srakes- Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . &
Clutch ................................................
Hi
Cooling .............................................
w
Engine ............................................... m
Intake and Exhaust ,.......*..........*......
ml
Fuel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
mE
Propeller Shaft and Universal
Joint . . . . . . . . m;
Rear Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . mt
Power Steering . . . . ..a*........................
m
Transmission - fity$tic . . . . . . . . . . . . . &!a
Wheels and Tires .............................
FP
Body .................................................. m
Heater and Air Conditioning ........... p!’
Emission Control Systems .............. &!!!!
NOTE
For Electrical refer to .._
Volume-2 “Electrical”
Q 198’8 Mitsubishi Motors Corporation Printed in Japan

6 INTRODUCTION AND MASTER TROUBLESHOOTING - Vehicle Identification
~3.0 L Engine>
CHASSIS NUMBER
STAMPING LOCATION
NOOCE-
The chassis number is stamped on the side of the frame near ._
the right rear wheel.
CHASSIS NUMBER CODE CHART
L141 v KJOOOOOI
I I I I
VEHICLE SAFETY CERTIFICATION LABEL NWCF
The vehicle safety certification label is attached to face of left
door pillar.
This label indicates the month and year of manufacture, Gross
Vehicle Weight Rating (G.V.W.R.), front and rear Gross Axle
Weight Rating (G.A.W.R.), and Vehicle Identification Number
(V.I.N.).
ENGINE MODEL STAMPING
Nwce-
The engine model is stamped on the right front side on the
top edge of the cylinder block (for M-liter engines). For 3.0-
liter engines, it is stamped at the right rear of the top of the
cylinder block.
These engine model numbers are as shown in the following.
Engine model
Engine displacement 1
G54B 2.555 liters (155.9 cu.iiTI
6G72 2.972 liters (181.4 cu.in.)
The engine serial number is stamped near the engine model
number, and the serial number cycles, as shown below.
_ ~-
Engine serial number Number cycling
AA0201 to YY9999 AA0201 ----3 A.49989
/ Lo ABOOOl ---+ AY9999
I
1 LmBAOOOl ---+ YY9999
__.
-..:-:-- I 1-

INTRODUCTION AND MASTER TROUBLESHOOTING - Precautions Before Service 9
nm (in.)
smo59
PARTS
When replacing parts, use MITSUBISHI genuine parts
VEHICLE WASHING
If high-pressure car-washing equipment or steam car-washing
equipment is used to wash the vehicle, be sure to maintain the
spray nozzle at a distance of at least 300 mm (11.8 in.) from
any plastic parts and all opening parts (doors, luggage
compartment, etc.).
SERVICING ELECTRICAL SYSTEM
1. Note the following before proceeding with work on the
electrical system.
Note that the following must never be done:
Unauthorized modifications of any electrical device or
wiring, because such modifications might lead to a vehicle
malfunction, over-capacity or short-circuit that could result
in a fire in the vehicle.
2. When servicing the electrical system, disconnect the
negative cable terminal from the battery.
Caution
1. Before connecting or disconnecting the negative
cable, be sure to turn off the ignition switch and the
fighting switch.
(If this is not done, there is the possibility of
semiconductor parts being damaged.)
2. After completion of the work steps [when the
battery’s negative (-) terminal is connected], warm
up the engine and allow it to idle for approximately
five minutes under the conditions described below,
in order to stabilize engine control conditions, and
then check to be sure that the idling is satisfactory.
For 3.OL Engine models: If the engine rpm is high,
switch OFF the ignition switch, and then, after
switching it ON again, let the engine idle for 2 or 3
minutes.
This will cause the engine rpm to decrease about
100 rpm, so repeat this procedure until the pre-
scribed idling speed is reached.
Engine coolant temperature : 85”-95°C (‘l85403”F)
Lights, accessories : OFF
Transmission : neutral position
(Automatic transmission models: “IV or “P”J
Steering wheel : neutral (center) position
1 TSB Revision

INTRODUCTION AND MASTER TROUBLESHOOTING - Towing and Hoisting 17
TOWING AND HOISTING
This vehicle can only be towed from the front with convention-
al sling-type equipment and tow chain with grab hooks.
If a vehicle is towed from the rear, use a tow dolly.
A lumber spacer (4” x 4” x 55” wood beam) should be placed
forward of under guard and under towing hook/shipping tie
down hook.
Then, attach J-hook to the lower arm.
A safety chain system must be used. This system must be
completely independent. of the primary lifting and towing
attachment. Care must be taken in the installation of safety
chains to insure they do not cause damage to bumper, painted
surfaces or lights.
LIFTING-GROUND CLEARANCE
Towed vehicle should be raised until wheels are a minimum of
10 cm (4 in.) from the ground. Be sure there is adequate
ground clearance at the opposite end of the vehicle, especially
when towing over rough terrain or when crossing sharp rises
such as curbs. If necessary, ground clearance can be in-
creased by removing the wheels from the lifted end of the
disabled vehicle and carrying the lifted end closer to the
ground. A 20 cm (8 in.) ground clearance must be maintained
between brake drums and ground.
FRONT TOWING PICKUP
The vehicle may be towed on its rear wheels for extended
distances, provided the parking brake is released.
Make cartain the transmission remains in “NEUTRAL”.
SAFETY PRECAUTIONS
The following precautions should be taken when towing the
vehicle.
1. Remove exhaust tips and any other optional equipment,
that interface with the towing sling. Padding (heavy shop
towel or carpeting) should be placed between the towing
sling cross bar and any painted surfaces, and bumper
surfaces.
2. A safety chain system completely independent of the
primary lifting and towing attachment must be used.
3. Any loose or protruding parts of damaged vehicle such as
hoods, doors, fenders, trim, etc., should be secured prior
to moving the vehicle.
4. Operator should refrain from going under a vehicle unless
the vehicle is adequately supported by safety stands.
5.
Never allow passengers to ride in a towed vehicle.
6. State and local rules and regulations must be followed
when towing a vehicle.
1 TSB Revision

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18 INTRODUCTION AND MASTER TROUBLESHOOTING - Towing and Hoisting
HOISTING
POST TYPE
Special care should be taken when raising the vehicle on a
frame contact type hoist. The hoist must be equipped with
the proper adapters in order to support the vehicle at the
proper locations. (Shown in the illustration)
Conventional hydraulic hoists may be used after determining
that the adapter plates will make firm contact with the side ._
frame.
FLOOR JACK
A regular floor jack may be used under the front crossmember
or rear axle housing.
Caution
1. A floor jack must never be used on any part of the
underbody.
2. Do not attempt to raise one entire side of the vehicle by
placing a jack midway between front and rear wheels.
This practice may result in permanent damage to the
body.
EMERGENCY JACKING
Jack receptacles are located at the No. 2 crossmember and .
rear axle housing to accept the jack supplied with the vehicle
for emergency road service. Always block the opposite wheels
and jack only on a level surface.
FRAME CONTACT SUPPORT LOCATIONS
1,175 mm (46.3 in.)
Wheel base
2.350 mm (92.5 in.) Sectlon A-A
NOTE
The
locations of the support point shown as Section A-A are
the same as those of the twin post hoist shown in the next
paw.
1 TSB Revision
I -

20 INTRODUCTION AND MASTER TROUBLESHOOTING - General Data and Specifications
GENERAL DATA AND SPECIFICATIONS NW-
<2-door vehicles>
Models L047.G
ascription
chicle dimensions mm (in.)
Overall length
Without spare tire 0
With spare tire 8
Overall width @
Overall height
@
Wheelbase c3
Tread Front @
Rear 6
Overhang
Front @
Rear (9,
Height at curb weight (wt.)
Front bumper to ground @
Rear bumperto ground 0
Minimum running ground 0
clearance
Angle of approach 8
Angle of departure 8
Ramp breakover angle -33
hicle weights kg (Ibs.)
Curb weight
Gross vehicle weight rating
Gross axle Front
weight rating
Rear
Seating capacity TNSL F/H
3,900 (153.5)
3,935 (154.9)
1,680 (66.1)
1,840 (72.4)
2,350 (92.5)
1,400 (55.1)
1,375 (54.1)
685 (27.0)
900 (35.4)
480(18.9)
440(17.3)
210(8.3)
38”
28”
21”
1,455 (3.207)
1,910(4.210)
1 ,I 00 (2.425)
1,450 (3.197)
2 T
TNJL F/H
3,905 (153.7)
3,940(155.1)
1,680 (661)
1,850 (72.8)
2,350 (92.5)
1,400 (551)
1,415 (55.7)
685 (27.0)
905 (35.6)
490 (19.3)
450 (17.7)
215 (8.5)
38”
28”
21°
1,585 (3,494)
2,200 (4,850)
1,100 (2,425)
1,600 (3,527)
2 L141G
TRJL F/W
3,905 (153.7)
3,940(155.1)
1,880 (66.1)
1,850 (72.8)
2,350 (92.5)
1,400(55.1)
1,415 (55.7)
685 (27.0)
905 (35.6)
490(19.3)
450(17.7)
215(8.5)
38”
28”
21”
1,600 (3.527)
2,200 (4,850)
1,100 (2,425)
1,600 (3,527)
2 TRUL F/H
3,905 (153.7)
3,940(155.1)
1,680 (66.1)
1,850 (72.8)
2,350 (92.5)
1,400 (55.1)
1,415 (55.7)
685 (27.0)
905 (35.6)
490 (19.3)
450 (17.7)
215 (8.5)
38”
28”
21”
1,605 (3,538)
2,200 (4,850)
1,100 (2,425)
1,600 (3,527)
2
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22 INTRODUCTION AND MASTER TROUBLESHOOTING - General Data and Specifications
<&door vehicles>
L-
chicle dimensions mm (in.)
Overall length
Withoutspare tire a
With spare tire @
Overall width 0
Overall height @
Wheelbase Q
Tread Front @
Rear 8
Overhang Front @
Rear @
Height at curb weight
Wt.)
Front bumperto ground @
Rear bumper to ground 0
Minimum running ground @
clearance
Angle of approach 8
Angle of departure
8
Ramp breakover angle
63
,hicle weights kg (Ibs.)
Curb weight
Gross vehicle weight rating
Gross axle Front
weight rating
Rear
Seating capacity
gine
Model No.
Type
Number of cylinders
Bore
Stroke
Piston displacement
Compression ratio
Firing order
Basic ignition timing VMNJL F/H VMRJL F/H
4,570 (179.9)
4,605 (181.3)
1,680 (66.1)
1,890 (74.4)
2,695 (106.1)
1,400 (55.1)
I,41 5 (55.7)
745 (29.3)
1 ,I 65 (45.9) 4,570 ( 179.9)
4,605(181.3)
1,680 (66.1)
1,890 (74.4)
2,695(106.1)
1.400(55.1)
1,415 (55.7)
745 (29.3)
1,165(45.9)
490 (19.3)
450(17.7)
215 (8.5) 490 (19.3)
450(17.7)
215 (8.5)
38”
28”
18” 38”
28
18”
-i
1,780 (3,924)
2,400 (5,291)
1,100(2,425)
1,600 (3,527)
5 1,795 (3,957)
2,400 (5,291)
1,100(2.425)
1,600 (3,527)
5
6672
V-type, OHC
6
91 .I mm (3.59 in.)
76.0 mm (2.99 in.)
2,972 cm3 (181.4 cu.in.)
8.9
l-2-3-4-5-6
5”BTDC i2” 6672
V-type, OHC
6
91 .l mm (3.59 in.)
76.0 mm (2.99 in.)
2,972 cm3 (181.4 cuin.)
8.9
1-2-3-4-5-6
5”BTDC 22” : L146G
L
_-. 1 TSB Revision I
.- WMRUL F/H
4.570 (179.9)
4,605 (181.3)
1,680 (66.1)
1,890 (74.4)
2,695(106.1)
1,400(55.1)
1,415 (55.7)
745 (29.3)
1,165 (45.9)
490 (19.3)
450 (17.7)
215 (8.5)
38”
28”
18
1,805 (3,979)
2,400 (5,291)
1 ,100 (2,425)
1,600 (3,527)
5
3072
V-type, OHC
3
31 .l mm (3.59 in.)
76.0 mm (2.99 in.)
2,972 cm3 (181.4 cu.in.)
3.9
l-2-3-4-5-6
5”BTDC 22”

INTRODUCTION AND MASTER TROUBLESHOOTING - Master Troubleshooting 27
POOR FUEL MILEAGE
Symptom Probable cause Reference
page or remedy
Poor fuel mileage Fuel leak Repair as
necessary
I
1 Air cleaner clogged
1 Ignition problems 1 11-3.10 1
1 8-147to 149 1
Carburetor or fuel injection system problems 1434.90
I
Compression too low
1 g-II.65 1
Tires improperly inflated 1 22-2
I
Clutch slips
16-4 I
Brakes drag 1 5-13 I
NOISE
Probable cause Reference
page or remedy
Noise Loose bolts and nuts Retighten as
necessary
I
1 Enaine noise
I 9-11 I
HARD STEERING
Symptom
Hard steering Probable cause
Loose power steering oil pump belt
Low fluid level
Air in power steering system
Low tire pressure
Excessive turning resistance of upper or lower ball joint
Excessivelytight linkage ball joint
Improperfrontwheel alignment
Excessive turning resistance of tie-rod ball joint
No lubricantion of tie-rod
Sticky flow control valve
No lubrication of idler arm Reference
page or remedy
19-10
19-11
19-11
22-2
2-27
1937
2-13
19-38 ’
Lubricate
19-33
19-39
) TSB Revision

INTRODUCTION MASTER TROUBLESHOOTING - Master Troubleshootha
POOR RETURN OF STEERING WHEEL TO CENTER
Symptom Probable cause Reference
page or remedy
Poor return of steering
wheel to center improper front wheel alignment 2-13
Improper tire pressure 22-2
Damaged front wheel bearing 2-21
POOR RIDING
Probable cause Reference
page or remedy
Poor riding Impropertire pressure
lmbalanced wheels 22-2
22-4
1 Improper front or rear wheel alignment 1 2-13.17-3.6
1 Malfunctioning shock absorber 1 2-27,174.a
1 Broken or worn stabilizer
1 Broken or worn torsion bar spring j 2-36
I
Loose suspension securing bolt(s) Retighten
I
1 Worn lower arm bushing / 231
I
ABNORMAL TIRE WEAR
Symptom Probable cause Reference
page or remedy
Abnormal tire wear Improper front or rear wheel alignment 2-l 3,17-3.6
Improper tire pressure 22-2
lmbalanced wheels 22-4
Loose wheel bearings 2-19
Malfunctioning shock absorber 2-27. 174.8
ROAD WANDER
Symptom Probable cause Reference
page or remedy
Road wander z Improper front or rear wheel alignment 2-13. 17-3,6
Excessive play of steering wheel 19-6
Poor turning resistance of upper ball joint ~ 2-27
Improper tire pressure 22-2
/ Loose or worn lower arm or upper arm bushing 2-28.31
Loose or worn wheel bearinas
I
[ TSB Revision
I 2-19
1 ~- __
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INTRODUCTION AND MASTER TROUBLESHOOTING - Master Troubleshootina 29
VEHICLE PULLS TO ONE SIDE
Symptom
Vehicle pulls to one side Probable cause
Improper front or rear wheel alignment
lmbalanced or worn tires
Uneven tire pressure
Excessive turning resistance of upper ball joint
Wheel bearing seizure
Broken or worn torsion bar spring
Bend front axle drive shaft
Deformed lowerarm Reference
page or remedy
2-l 3.17-3.6
/ 224
22-2
2-27
2-21
2-36
2-40
230
STEERING WHEEL SHIMMY
Symptom Probable cause Reference
page or remedy
Steering wheel shimmy Improper front or rear wheel alignment 1 2-13,17-3,6 1
Improper tire pressure 1 22-2
I
Imbalanced wheels Repair
I
1 Poorturning resistance of upper ball joint
Excessive play of steering wheel 1 2-27
I
19%
I
Broken or weak stabilizer 1 2-39
I
Worn lower arm or upper arm bushing I 2-28.31 1
Malfunctioning shock absorber I 2-27
I
/ Broken or weak torsion bar spring or, leaf spring or coil spring / 2-36,17-4,9
Wear, play, or seizure of wheel bearing 2-19
BOTTOMING
Symptom Probable cause Reference
page or remedy
Bottoming Overloaded vehicle Correct
Broken or weak torsion bar spring, leaf spring or coil spring 236.1749
1 Malfunctionina shock absorber 1 2-27,174 8 1
( TSB Revision