Service Manual
MONTERO
1987 : Volume 2
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.
WE SUPPORT
VOLUNTARY TECHNICIAN
CERTIFICATION THROUGH
MITSUBISHI MOTOR SALES OF AMERICA. Inc.
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.
I
GROUP/SECTION INDEX ‘kme-.
INTRODUCTION ..............................
Electrical ...........................................
Electrical System Parts
Location .........................................
Relays, Control Units, Sensors,
Fuses, Groundings
Inspection of Harness
Connector ......................................
Wiring Harness .............................
Charging System ..........................
Starting System ............................
Ignition System .............................
Meters and Gauges ......................
Lighting System .............................
Wiper and Washer System ..........
Horn ...............................................
Accessory ......................................
Audio System ................................
Back Door Window Defogger ......
Automatic Free-wheeling Hub
Indicator System ..........................
Heaters and Air-conditioning .........
Heaters ..........................................
Air-conditioning ............................
**, For Engine Chassis & Body refer to
0 1986 Mitsubishi Motors Corporation Printed in Japan
INTRODUCTION - Geraeral Data and Specifications 17
GENERAL DATA AND SPECIFICATIONS
NOOHA-A
OOW556
Description L042G VNJ LFIH VRJLFIH
TNSLFIH TRSLF/H
Vehicle dimensions mm (in.)
Overall length
Without tire
spare 0 3,960 (155.9) 3,960 (155.9) 3,960 (155.9) 3,960 (155.9)
With tire spare 0 3,995 (157.3) 3,995 (157.3) 3,995 (157.3) 3,995 (157.3)
Overall width 0 1,680 (66.1) 1,680 (66.1) 1,680 (66.1) 1,680 (66.1)
Overall height 0 1,840 (72.4) 1,840 (72.4) 1,850 (72.8) 1,850 (72.8)
Wheelbase 0 2,350 (92.5) 2,350 (92.5) 2,350 (92.5) 2,350 (92.5)
Tread Front @ 1,400 (55.1) 1,400 (55.1) 1,400 (55.1) 1,400 (55.1)
Rear 0 1,375 (54.1) 1,375 (54.1) 1,375 (54.1) 1,375 (54.1)
Overhang Front @ 745 (29.3) 745 (29.3) 745 (29.3) 745 (29.3)
Rear @ 900 (35.4) 900 (35.4) 900 (35.4) 900 (35.4)
Height at curb weight
(wt.)
Front bumper to ground
@ 480 (18.9) 480 (18.9) 480(18.9) 480 (18.9)
Rear bumper to ground 440(17.3) 440(17.3) 440(17.3) 440(17.3)
Minimum running ground : 210 (8.3) 210 (8.3) 210 (8.3) 210 (8.3)
clearance
Angle of approach @ 38 38 38” 38
Angle of departure @ 28 28” 28 28
Ramp breakover angle
@ 21” 21” 21” 21”
Vehicle weights kg (Ibs.)
Curb weight 1,479 (3,260) 1,493 (3,290) 1,440 (3,175) 1,460 (3,219)
Gross vehicle weight rating 1,910 (4,210) I,91 0 (4,210) 1,910(4,210) I,91 0 (4.210)
Gross axle Front 1 ,I 00 (2,425) 1 ,I 00 (2,425) 1 ,I 00 (2,425) 1,100 (2,425)
weight ratin!g~:+y~ Rear 1,450 (3,197) 1,450 (3,197) 1,450 (3,197) 1,450 (3,197)
Seating,c&ac&~ 4 4 2 2
.’ .’ :I’ ;.,* ..,, VU.,
,: ‘,_. : ., ”
,_;. ,; ,: 3,‘. r STB Revision
18 INTRODUCTION - General Data and Specifications
Description L042G VNJLFIH VRJ L.F/H TNSLFIH TRSLFIH
1
Engine
Model No. G54B
G54B G54B G54B
Type i In-line OHC
In-line OHC In-line OHC In-line OHC
Number of cylinders ‘4 4
4 4
Bore 91 .I mm (3.59 in.) 91 .I mm (3.59 in.) 91 ,I mm (3.59 in.) 91 .I mm (3.59 in.)
Stroke 98.0 mm (3.86 in.) 98.0 mm (3.86 in.) 98.0 mm (3.86 in.) 98.0 mm (3.86 in.)
Piston displacement
2,555 cm” 2,555 cm” 2,555 cm3
2,555 cm3
(155.9 CID) (155.9 CID) (155.9 CID) (155.9 CID)
Compression ratio 8.7
8.7 8.7
8.7
Firing order
I-3-4-2 I-3-4-2 1-3-4-2
1-3-4-2
Basic ignitron trming
7” BTDC ? 2” 7” BTDC ? 2” 7” BTDC 2 2” ‘7” BTDC ? 2”
Transmission &transfer case
Model No.
KM145 KM148 KM145 KM148
Type 5-speed 4-speed 5-speed 4-speed
manual automatic manual automatic
Cear ratio
Transmjssion 1 st
3.967 2.826 3.967
2.826
2nd
2.136 1.493 2.136
1.493
3rd 1.360
1 .ooo 1.360
1.000
4th
1.000 0.688 1 .ooo
0.688
5th
0.856 - 0.856
-
Reverse 3.578
2.703 3.578
2.703
Transfer case High 1.000
1.000 1.000
1 ,040
Low 1.944
1.944 1.944
1.944
Final ring ratio
gear 4.625 4.625 4.625
4.625
Zlutch
Type Dry single
- Dry single
-
disc & disc &
diaphragm diaphragm
spring spring
Chassis
Tire size
Front suspension
P225/75R15
Type
Spring constant
(Wheel position)
Rear suspension
Type
Spring constant
At load of 1 ,OOO-2,500 N
(220-551 Ibs.)
At load of 4,670-8,870 N
(1,030-I ,955 tbs.) Wishbone compression type
22 N/mm (123 Ibs./in.)
Asymmetrical semi-elliptic leaf spring
22 N/mm (123 Ibs./in.)
50 N/mm (280 Ibs./in.)
1 STB Revision ..,j ; : * :
INTRODUCTION - General Data and Specifications / Tightening Torque
19
Description m--__ L042G VNJLFIH VRJLFIH
TNSLFIH TRSLFIH
Brakes
We Front
Disc
Rear
Drum
(Leading and trailing)
Power steering
Gear type
Integral type (Recirculating ball nut)
Gear ratio
16.4
Fuel tank capacity
60 liters (15.9 U.S. gal./1 3.2 Imp. gal.)
TIGHTENING TORQUE NOOJA-
Description
Thread for general purposes
(size x pitch) mm
6x 1.0
8x 1.25
10x 1.25
12 x 1.25
14x 1.5
16x 1.5
18x1.5
20x 1.5
22 x 1.5
24x 1.5 Head mark
Nm
3.0-3.9
7.9-I 2
16-23
29-43
48-70
677100
100-l 50
150-I 90
200-260
260-320 Head mark 0 7
ft.lbs. Nm ft.lbs.
I
2.2-2.9 4.9-7.8 3.6-5.8
5.8-8.7 13-19 9.4-14
12-17 27-39 20-29
21-32 47-72 35-53
35-52 77-l 10 57-85
51-77 130-I 60 90-I 20
74-I 10 180-230 130-170
1 IO-140 160-320 1 go-240
150-I 90 340-430 250-320
1 go-240 420-550 310-410
Description
Taper thread for pipes (size)
PT l/8
PT l/4
PT 318 Nm ft.lbs. Remarks
Internal thread: Aluminum
Internal thread: Cast iron
Internal thread: Aluminum
Internal thread: Cast iron
Internal thread: Aluminum
Internal thread: Cast iron
Tape thread for dry sealed pipes (size)
NPTF l/16
NPTF l/8
NPTF l/4 4.9-7.8
7.9-I 2
7.9-I 2
16-19
19-13
34-45 3.6-5.8
5.8-8.7
5.8-8.7
12-14
14-22
25-33 Internal thread: Aluminum
Internal thread: Cast iron
Internal thread: Aluminum
Internal thread: Cast iron
Internal thread: Aluminum
Internal thread: Cast iron .
) STB Revision
WIRING HARNESS - HOW to Read Wiring Diagrams 8-21
(2) Identification of connectors differing according to different vehicle specifications
Without wiring harness connectors, the inter-device or -wiring harness connectors which vary in shape or
position on different vehicle specifications are
given the specification-dependent connector identification svm-
bol (lower case alphabet) after a serial number.
For detailed information on this specification-dependent symbol, refer to Item (8) under “HOW
TO READ
CIRCUIT DIAGRAMS”.
(3) Indication of standard mounting positions of harnesses
The standard mounting positions of harnesses are shown with the mark * in wiring harness configuration
diagrams.
(4) Indication of ground point
The position of ground points are shown in wiring harness configuration diagrams. For detailed information on
the ground portion, refer to ELECTRICAL SYSTEM PARTS LOCATION (Grounding).
Refer to item (3)
7
Ground symbol / STB Revision
8-24 WIRING HARNESS - How to Read Wiring Diagrams
(7) Indication of shielded cables
A shielded cable used , for example, in an electronic control circuit for prevention of malfunctions that may
otherwise be caused by radio interference is indicated by a solid line sandwiched between dashed lines ( E).
(8) Indication of specification-dependent connectors
With regard to harness connectors, the inter-device and -harness connectors which vary in shape or position on
different vehicle specifications, such as those with rear wipers and turbocharger and those without turbo-
charger, are given a specification-dependent connector identification symbol (lower case alphabet) following the
connector symbol.
Example: A - Ola
Specification - dependent connector identification symbol
a : Vehicles with a manual transmission
b : Vehicles with an automatic transmission
c : Vehicles with a power window
d : Vehicles without a power window
(9) Shapes of connectors
The connector shapes are indicated by simplified symbolic marks. For distinction between male and female
connectors, refer to HOW TO IDENTIFY CONNECTORS.
Refer to Item (8)
The b at the end of the connector symbol
is a specification-dependent connector
identification
symbol and indicates that
the connector is used for vehicles with’
automatic transmission.
Headlight relay Ignition
switch I Dome light
B-68a B-68b STB Revision
CHARGING SYSTEM -Specifications
SPECIFICATIONS
GENERAL SPECIFICATIONS
ALTERNATOR NOOEB-B
Type
Model No.
Part No.
Rated output
VIA
Voltage regulator Items Specifications
~--
Battery voltage sensing
A2T03477
MD1 10318
12150
Electronic built-in type
BAlTERY
Items
Type
1
Ampere hours (5 HR) Ah
Cranking rating [at - 178°C (O”F)] A
Reserve capacity min. Specifications
55824R (S)-MF
36
420
75
NOTES
1. CRANKING RATING is the current a battery can deliver for 30 seconds and maintain a terminal voltage of 7.2 or
greater at a specified temperature.
2. RESERVE CAPACITY RATING is the amount of time a battery can deliver 25 A and maintain a minimum terminal
voltage of 10.5 at 26.7”C (80°F).
SERVICE SPECIFICATIONS NOBEC-
Items
Standard values
Regulated voltage V
Ambient temp. at voltage regulator
- 20°C ( - 4°F)
20°C (68°F)
60°C (140°F)
80°C (176°F)
Slip ring O.D. mm (in.)
Field coil resistance R
Limit
Output current A
Slip ring O.D. mm (in.) 14.2-15.4
13.9-14.9
13.4-14.6
13.1-14.5
23 (.906)
3.1
Min. 35
22.2 (.874) Specifications
[ STB Revision
8-74 CHARGING SYSTEM -Specifications
TORQUE SPECIFICATIONS
items Nm ft.lbs.
__-
Alternator brace bolt
12-15
9-l 1
Alternator support bolt nut
20-22
14-16
High pressure hose nut
20-25
14-18
Low hose nut
pressure 30-35
22-25
.
1 STB Revision