engine MITSUBISHI MONTERO 1998 Service Manual
Page 1 of 1501
3.5L V6
1998 Mitsubishi Montero
1997-98 ENGINES
Mitsubishi 3.5L V6
Diamante, Montero
* PLEASE READ THIS FIRST *
NOTE: Minimal information is available from manufacturer. For
repair procedures not covered in this article, see
ENGINE OVERHAUL PROCEDURES - GENERAL INFORMATION article
in the GENERAL INFORMATION section.
REMOVAL & INSTALLATION
NOTE: Use appropriate illustrations to aid in removal and
installation. See Figs. 1-9.
Fig. 1: Accessories & Mounting (Montero)
Courtesy of Mitsubishi Motor Sales of America.
Page 13 of 1501
Fig. 16: Connecting Rod Identification Location (Montero)
Courtesy of Mitsubishi Motor Sales of America.
ENGINE OILING
OIL PUMP SPECIFICATIONS\
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Application Specification
Gear Side Clearance ..................... .0016-.0039" (.040-.10 mm)\
Gear-To-Front Cover Clearance
Standard .............................. .0039-.0071" (.10-.180 mm)\
Limit ........................................... .0138" (.350 mm)\
Tip to Tip Clearance ................... .0024-.0071" (.060-.180 mm)\
Minimum Warm Oil Pressure at Idle ............. 11.4 psi (.8 kg/cm
)\
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TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS\
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Application Ft. Lbs. (N.m)\
Crankshaft Drive Plate ..................................... 55 (74)\
Crankshaft Main Bearing Cap Bolt
Diamante ................................................. 69 (93)\
Montero .................................................. 55 (74)\
Crankshaft Pulley Bolt ................................... 134 (182)\
Cylinder Head Bolt ( 1) .................................... 80 (108)
Distributor Lock Nut (Diamante) ............................ 17 (23\
)
Exhaust Manifold Nut ....................................... 21 (29)\
Generator & Drive Belt
Accessory Mount Bolt (Montero) ........................... 32 (44\
)
Page 14 of 1501
Accessory Mount Stay Bolt (Montero)
8 mm Bolt .............................................. 17 (23)\
10 mm Bolt ............................................. 36 (49)\
Cooling Fan Bracket (Montero) ............................ 30 (41\
)
Engine Hanger (Montero) .................................. 13 (17\
)
Generator Bolt (Diamante) ................................ 15 (21\
)
Generator Bolt (Montero)
8 mm Bolt .............................................. 15 (21)\
10 mm Bolt ............................................. 38 (51)\
Generator Bracket (Diamante)
8 mm Bolt .............................................. 35 (48)\
10 mm Bolt ............................................. 17 (23)\
Generator Pivot Nut (Diamante) ........................... 32 (44\
)
Tensioner Pulley Nut ..................................... 37 (50)\
Tensioner Bracket Stay Bolt (Montero) .................... 18 (24\
)
Intake Manifold & Fuel
Bracket (Montero) ........................................ 18 (24\
)
ECT Sensor ............................................... 22 (30)\
Intake Manifold Nut ...................................... 15 (21)\
Thermostat Case .......................................... 14 (19)\
Water Inlet Fitting Bolt ................................. 14 (19)\
Water Outlet Fitting Bolt ................................ 14 (19)\
Water Passage (Montero) .................................. 14 (19\
)
Heater Pipe Bolt (Diamante) .............................. 13 (18\
)
Intake Plenum & Throttle Body
Air Intake Fitting Bolt & Nut (Montero) .................. 13 (18\
)
EGR Pipe Bolt ............................................ 13 (18)\
EGR Pipe Flair Nut ....................................... 44 (59)\
EGR Valve Bolt ........................................... 16 (22)\
Intake Manifold Plenum (Diamante) ........................ 13 (18\
)
Intake Manifold Plenum Stay Bolt
8 mm Bolt .............................................. 13 (18)\
10 mm Bolt ............................................. 27 (36)\
Water Outlet Fitting Bracket Bolt ........................ 14 (19)\
Bracket (Diamante) ....................................... 18 (24\
)
Motor Mount Brackets
Bracket
8 mm Bolt .............................................. 16 (22)\
10 mm Bolt ............................................. 30 (41)\
12 mm Bolt ............................................. 55 (75)\
Oil Pan & Oil Pump
Drain Plug ............................................... 30 (40)\
Oil Cooler By-Pass Valve (Montero) ....................... 41 (55\
)
Oil Filter Bolt (Montero) ................................ 15 (21\
)
Oil Filter Bracket
8 mm Bolt .............................................. 18 (24)\
10 mm Bolt ............................................. 30 (40)\
Oil Screen
8 mm Bolt ............................................... 14 (19)\
Plug .................................................... 33 (45)\
Piston & Connection Rod
Connecting Rod Cap Nut ................................... 38 (52)\
Rocker Arms & Camshafts
Distributor Adapter Bolt (Diamante) ...................... 17 (23\
)
Rocker Arm Shaft Bolt .................................... 23 (31)\
Spark Plug ................................................. 18 (25)\
Timing Belt
Auto Tensioner Bolt ...................................... 18 (24)\
Camshaft Sprocket Bolt ................................... 65 (88)\
Idler Pulley Bolt ........................................ 32 (44)\
Tensioner Arm Bolt ....................................... 32 (44)\
Tensioner Pulley Bolt .................................... 36 (49)\
Water Pump Bolt (Montero) ................................ 18 (24\
)
Page 15 of 1501
Water Pump Bolt (Diamante)
8 mm Bolt .............................................. 18 (24)\
10 mm Bolt ............................................. 30 (41)\
INCH Lbs. (N.m)
Crankshaft & Drive Plate
Bell Housing ............................................ 79.7 (9)\
Oil Seal Case .......................................... 97.3 (11)\
Rear Plate (Montero) ................................... 97.3 (11\
)
Exhaust Manifold
Heat Shield ........................................... 123.9 (14)\
Oil Level Gauge Guide Bolt ............................ 123.9 (14)\
Generator & Drive Belt
Cooling Fan Bolt (Montero) ............................. 97.3 (11\
)
Cooling Fan Nut (Montero) .............................. 97.3 (11\
)
Timing Indicator Bolt (Montero) ........................ 97.3 (11\
)
Intake Manifold & Fuel
ECT Gauge Sender ....................................... 97.4 (11)\
Fuel Pressure Regulator Bolt ............................ 79.6 (9)\
Fuel Pipe Banjo Bolt .................................... 79.6 (9)\
Injector & Fuel Rail Bolt ............................. 106.2 (12)\
Water Outlet Pipe ..................................... 123.9 (14)\
Intake Plenum & Throttle Body
Ignition Coil Bolt (Montero) ............................ 115 (13\
)
Manifold Differential Pressure (MDP) Sensor ............. 44 (4.9\
)
Throttle Body Bolt ...................................... 106 (12)\
Vacuum Hose Assembly (Diamante) ......................... 88 (9.8\
)
Oil Pan & Oil Pump
Baffle Plate (Montero) ................................. 97.3 (11\
)
Baffle Plate (Diamante) ................................ 97.3 (11\
)
6 mm Bolt ............................................... 53.1 (6)\
8 mm Bolt ............................................... 79.6 (9)\
Oil Pump Cover Bolt (Diamante) ......................... 88.5 (10\
)
Oil Pump Cover Bolt (Montero)
6 mm x 10 mm Bolt .................................... 97.3 (11)\
6 mm x 18 mm Bolt ..................................... 53.1 (6)\
Oil Pressure Gauge Sender .............................. 88.5 (10)\
Oil Pan (Upper) ......................................... 53.1 (6\
)
Oil Pan (Lower) ........................................ 97.3 (11\
)
Oil Pump Case ......................................... 123.9 (14)\
Oil Screen (Montero)
6 mm Bolt ............................................. 53.1 (9)\
Rocker Arms & Camshafts
Rocker Cover Bolt ....................................... 31 (3.5)\
Thrust Case Bolt ...................................... 115.1 (13)\
Timing Belt
Camshaft Position (CMP) Sensor (Montero) ................ 79.6 (\
9)
Crankshaft Position (CKP) Sensor ........................ 79.6 (9\
)
( 1) - Tighten cylinder head bolts in 2 or 3 steps with engine cold.
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ENGINE SPECIFICATIONS
GENERAL SPECIFICATIONS
GENERAL SPECIFICATIONS\
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Application Specification
Displacement .................................. 213.4 Cu. In. (3.5L)\
Bore ............................................... 3.6614" (93 mm)\
Page 19 of 1501
A - INTRODUCTION
1998 Mitsubishi Montero
1998 ENGINE PERFORMANCE
Mitsubishi - Introduction
Diamante, Eclipse, Eclipse Spyder, Galant, Mirage, Montero,
Montero Sport, 3000GT
1997-98 MODEL COVERAGE
ENGINE/VIN IDENTIFICATION
ENGINE/VIN IDENTIFICATION TABLE \
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BODY ENGINE FUEL IGNITION
MODEL CODE (1) ENGINE (2) ID (3)SYSTEM SYSTEM (5)
\b\
\b\
\
\
\b\b\
\b\
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Diamante 7 3.5L V6 (6G74) SOHC P SFI Hall Effect
(
4) ( 6)
\b\
\b\
\
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\b\b\
\b\
\
Eclipse 4 2.0L 4-Cyl. (420A) Y SFI DIS (
7)
DOHC (
4)
\
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\b\
\b\b\
\
2.0L 4-Cyl. (4G63) F SFI DIS (
7)
DOHC Turbo (
4)
\b\
\b\
\
\
\b\b\
\b\
\
Eclipse 5 2.0L 4-Cyl. (4G63) F SFI DIS (
7)
Spyder DOHC Turbo (
4)
\
\
\b\
\b\b\
\
2.4L 4-Cyl. (4G64) G SFI DIS (
7)
SOHC (
4)
\b\
\b\
\
\
\b\b\
\b\
\
Galant 6 2.4L 4-Cyl. (4G64) G SFI Hall Effect
SOHC (
4) ( 6)
\b\
\b\
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\b\b\
\b\
\
Mirage 1, 6 1.5L 4-Cyl. (4G15) A SFI Hall Effect
SOHC (
4) ( 6)
\
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\b\
\b\b\
\
1.8L 4-Cyl. (4G93) C SFI DIS (
7)
SOHC (
4)
\b\
\b\
\
\
\b\b\
\b\
\
Montero 1 3.5L V6 (6G74) SOHC M SFI DIS (
7)
(
4)
\b\
\b\
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\b\b\
\b\
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Montero 1 2.4L 4-Cyl. (4G64) G SFI Hall Effect
Sport SOHC (
4) ( 6)
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\b\
\b\b\
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3.0L V6 (6G72) SOHC P SFI DIS (
7)
(
4)
\b\
\b\
\
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\b\b\
\b\
\
3000GT 4, 5 3.0L V6 (6G72) SOHC H SFI Hall Effect
(
4) ( 6)
\
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\b\
\b\b\
\
3.0L V6 (6G72) DOHC J SFI DIS (
7)
(
4)
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\b\
\b\b\
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3.0L V6 (6G72) DOHC K SFI DIS (
7)
Turbo (
4)
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(
1) - Body code is seventh character of Vehicle Identification
Number (VIN). VIN is located on upper left corner of
Page 20 of 1501
instrument panel.
(
2) - See Figs. 1 and 2.
(
3) - Engine ID is eighth character of VIN.
(
4) - Fuel system is a Sequential Fuel Injection (SFI) system.
(
5) - Ignition timing is computer-controlled.
(
6) - This system may also be referred to as distributor ignition.
(
7) - This system may also be referred to as distributorless
ignition.
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VIN DEFINITION
J A 3 A Y 3 6 A 1 W U 0 0 0 0 0 1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
1 - Indicates Nation of Origin.
2 - Indicates Manufacturer.
3 - Indicates Vehicle Type.
4 - Indicates Restraint System. ( 1)
5 - Indicates Model.
6 - Indicates Vehicle Series.
7 - Indicates Body Type.
8 - Indicates Engine Type and Make.
9 - Indicates Check Digit.
10 - Indicates Model Year.
11 - Indicates Assembly Plant.
12-17 - Indicates Serial Number.
( 1) - On Montero & Montero Sport, fourth character of VIN indicates
GVWR.
VIN CODE/YEAR APPLICATIONS
VIN CODE/YEAR APPLICATION TABLE\
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VIN Code Model Year
T ................................................... 1996
V ................................................... 1997
W ................................................... 1998
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ENGINE CODE LOCATIONS
Fig. 1: Engine Code Locations (Diamante)
Courtesy of Chrysler Corp.
Page 21 of 1501
Fig. 2: Engine Code Locations (Eclipse 2.0L Non-Turbo)
Courtesy of Chrysler Corp.
Fig. 3: Engine Code Locations (Eclipse & Spyder 2.0L Turbo & 2.4L, &
Galant 2.4L)
Courtesy of Chrysler Corp.
Page 22 of 1501
Fig. 4: Engine Code Locations (Mirage 1.5L)
Courtesy of Chrysler Corp.
Fig. 5: Engine Code Locations (Mirage 1.8L)
Courtesy of Chrysler Corp.
Page 23 of 1501
Fig. 6: Engine Code Locations (Montero)
Courtesy of Chrysler Corp.
Fig. 7: Engine Code Locations (Montero Sport 2.4L)
Courtesy of Chrysler Corp.
Page 24 of 1501
Fig. 8: Engine Code Locations (Montero Sport 3.0L)
Courtesy of Chrysler Corp.
Fig. 9: Engine Code Locations (3000GT)
Courtesy of Chrysler Corp.