compression ratio MITSUBISHI MONTERO 1989 1.G Workshop Manual

INTRODUCTION AND MASTERTROUBLESHOOTING - GeneralDataandSpecmcations 21
L042G L141G
TNSL FM TNJL F/H
TRJL F/H TRUL F/H
Engine
Model No. G54B 6672 6672 6672
Type In-line OHC V-type, OHC V-type, OHC
V-type, OHC
Number of cylinders 4 6 6 6
Bore 91.1 mm(3.59in.j 91.1 mm(3.59in.j 91.1 mm(3.59in.) 91.1 mm(3.59in.
Stroke 98.0 mm (3.86 in.) 76.0 mm (2.99 in.) 76.0 mm (2.99 in.) 76.0 mm (2.99 in.
Piston displacement 2,555 cm3 2,972 cm3 2,972 cm3 2,972 cm3
(155.9 cuin.) (181.4cu.in.) (181.4cu.in.) (181.4 cuin.)
Compression ratio 8.7 8.9 8.9 8.9
Firing order 1-3-4-2 1-2-3-4-5-6 I -2-345-5 1-2-3-4.5-8
Basic ignition timing 7”BTDC 22” 5”BTDC 22” 5”BTDC i 2” 5”BTDC +-2”
Transmission &transfer case
Model No. KM145 V5MTl KM148 KM148
Type S-speed manual 5-speed manual &peed automatic &peed automatic
Gear ratio
Transmission 1st 3.967 3.918 2.826 2.826
2nd 2.136 2.261 1.493 1.493
3rd 1.360 1.395 1 .ooo 1.000
4th 1 .ooo 1.000 0.688 0.688
5th 0.856 0.829 -
Reverse 3.587 3.925 2.703 2.703
Transfer case High 1 .ooo 1 .ooo 1 .ooo 1 .ooo
Low 1.944 1.925 1.925 1.925
Final ring ratio gear 4.625 4.625 4.625 4.625
Clutch
Type Dry single disc & Dry single disc & -
diaphragm spring diaphragm spring
Chassis
Tire size
Front suspension
Type
Rear suspension
Type
Brakes
Type Front
Rear P225ff 5Rl5 P235ff5Rl5
independent Independent double-wishbone
double-wishbone
Rigid axle Rigid axle
Disc Disc
Drum Drum (Leading and trailing)
(Leading and trailing)
Power steering
Gear type
Gear ratio
Fuel tank capacity Integral type Integral type (Recirculating ball nut)
(Recirculating ball nut)
16.4 16.4
liters (gals.) 60 (15.9) 75 (19.8)
[ TSB Revision

-_-
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”

‘p ? f! .., .-, _-_ ,_- ____ ____ _L(
26 INTRODUCTION AND MASTER TROUBLESHOOTlNG - Master Troubleshooting
ENGINE HESITATES OR POOR ACCELERATION
Symptom Probable cause
Engine hesitates or
poor acceleration
-I
Ignition system problem
Vacuum leaks
l Purge control valve hose
l Vacuum hoses
- intake manifold
l Air intake plenum
* Carburetor or throttle body
l EGRvalve
ENGINE DIESELING
Reference
page or remedy
8-147 to 149
Repair as
necessary
Air cleaner clogged
Fuel line clogged 113.10
1442.99
Carburetor or fuel injection system problem
Auxiliary acceleration pump faulty (cold engine)
Emission control system problem
l EGR system always on
- High-altitude compensation (HAC) system problem
Engine overheats 14-34.90
14-23
25-77.22.32
7-4
Compression too low g-II.65
I Symptom Probable cause I
Reference
page or remedy
I I I I -..
Engine dieseling (runs after
ignition switch is turned off) Carburetor problems
Incorrect ignition timing 14-34
8-14710 149
EXCESSIVE OIL CONSUMPTION
Symptom Probable cause Reference
page or remedy
Excessive oil consumption Oil leak
Positive crankcaseventilation line clogged
Valve stem seal worn or damaged
Valve stem worn
Piston ring worn or damaged Repair as
necessary
o-13
Replace
Replace
9-43
1 TSB Revision