1998 MITSUBISHI MONTERO 3.0L engine
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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\
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\b\b\
\b\
\
Diamante 7 3.5L V6 (6G74) SOHC P SFI Hall Effect
(
4) ( 6)
\b\
\b\
\
\
\b\b\
\b\
\
Eclipse 4 2.0L 4-Cyl. (420A) Y SFI DIS (
7)
DOHC (
4)
\
\
\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)
\
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\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\
\
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\b\b\
\b\
\
Montero 1 3.5L V6 (6G74) SOHC M SFI DIS (
7)
(
4)
\b\
\b\
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\b\b\
\b\
\
Montero 1 2.4L 4-Cyl. (4G64) G SFI Hall Effect
Sport SOHC (
4) ( 6)
\
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\b\
\b\b\
\
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\
\
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 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.
Page 182 of 1501
Major Control Systems/Devices ..... PCV, EVAP, (5) TWC, ( 4) EGR,
FR, SPK, ( 6) ( 7) HO2S, CEC, MIL
Components/Other Related Devices ........... EVAP-CPCS, EVAP-VC,
EVAP-VSOL, ( 4) EGR-SOL, ( 4) EGR-VCV, SPK-CC
Montero Sport
2.4L 4-Cyl. SFI
Major Control Systems/Devices ..... PCV, EVAP, TWC, FR, ( 4) EGR,
SPK, ( 1) HO2S, CEC, MIL
Components/Other Related Devices ........... EVAP-CPCS, EVAP-VC,
EVAP-VSOL, ( 4) EGR-SOL, ( 4) EGR-VCV, SPK-CC
3.0L V6 SFI
Major Control Systems/Devices ..... PCV, EVAP, TWC, (4) EGR, FR,
SPK, ( 6) ( 7) HO2S, CEC, MIL
Components/Other Related Devices ........... EVAP-CPCS, EVAP-VC,
EVAP-VCS, EVAP-VSOL, ( 4) EGR-VCS, SPK-CC
3000GT
3.0L V6 SFI
Non-Turbo
Major Control Systems/Devices ........ PCV, EVAP, (8) TWC, FR,
EGR, SPK, ( 9) HO2S, CEC, MIL
Components/Other Related Devices ......... EVAP-CPCS, EVAP-VC,
EGR-SOL, EGR-VCV, SPK-CC
Turbo
Major Control Systems/Devices ........ PCV, EVAP, (8) TWC, FR,
EGR, SPK, ( 9) HO2S, CEC, MIL
Components/Other Related Devices ........ EVAP-CKV, EVAP-CPCS,
EVAP-VC, EGR-SOL, EGR-VCV, SPK-CC
( 1) - Equipped with 2 HO2Ss.
( 2) - Equipped with 2 EVAP-CKVs.
( 3) - California equipped with 2 TWCs.
( 4) - Federal.
( 5) - California equipped with 3 TWCs.
( 6) - Federal equipped with 2 HO2Ss.
( 7) - California equipped with 4 HO2Ss.
( 8) - Equipped with 3 TWCs.
( 9) - Equipped with 4 HO2Ss.
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NOTE: California or Federal refers to installed emissions
equipment. California emissions models may be available in
all states.
APPLICATION ABBREIVEATIONS
APPLICATION ABBREIVEATIONS TABLE \
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Application Abbreiveation
CEC .................................... Computerized Engine Control
EGR ...................................... Exhaust Gas Recirculation
EGR-CS ........................................ EGR Control Solenoid
EGR-SOL ............................................... EGR Solenoid
EGR-TS ..................................... EGR Transducer Solenoid
EGR-VCV ................................... EGR Vacuum Control Valve
EVAP ....................................... Fuel Evaporative System
EVAP-CKV .......................................... EVAP Check Valve
EVAP-CPCS ..................... EVAP Canister Purge Control Solenoid
EVAP-CPCV ........................ EVAP Canister Purge Control Valve
EVAP-VC ........................................ EVAP Vapor Canister
EVAP-VCS .............................. EVAP Vacuum Control Solenoid
EVAP-VSOL ................................ EVAP Ventilation Solenoid
Page 251 of 1501
![MITSUBISHI MONTERO 1998 Service Manual Generator ........ .30-.41 (7.5-10.5) ..... .35-.47 (9.0-12.0\
)
P/S (W/O A/C) .... .26-.37 (6.5-9.5) ..... .43-.55 (11.0-14\
.0)
P/S & A/C ........ .32-.35 (8.0-9.0) ..... .39](/manual-img/19/57333/w960_57333-250.png "MITSUBISHI MONTERO 1998 Service Manual Generator ........ .30-.41 (7.5-10.5) ..... .35-.47 (9.0-12.0\
)
P/S (W/O A/C) .... .26-.37 (6.5-9.5) ..... .43-.55 (11.0-14\
.0)
P/S & A/C ........ .32-.35 (8.0-9.0) ..... .39")
Generator ........ .30-.41 (7.5-10.5) ..... .35-.47 (9.0-12.0\
)
P/S (W/O A/C) .... .26-.37 (6.5-9.5) ..... .43-.55 (11.0-14\
.0)
P/S & A/C ........ .32-.35 (8.0-9.0) ..... .39-.43 (10.0-11.0\
)
2.0L Turbo & 2.4L
A/C .............. .22-.24 (5.5-6.0) ....... .26-.30 (6.5-7.5\
)
Generator ........ .30-.35 (7.5-9.0) .............. .39 (10.0\
)
P/S .............. .18-.22 (4.5-5.5) ....... .24-.28 (6.0-7.0\
)
Galant
A/C ................ .22-.24 (5.5-6.0) ....... .26-.30 (6.5-7.6\
)
Generator .......... .30-.35 (7.5-8.8) .............. .39 (10.0\
)
P/S ................ .18-.22 (4.5-5.6) ....... .24-.28 (6.0-7.0\
)
Mirage
1.5L
A/C .............. .13-.17 (3.4-4.3) ....... .20-.22 (5.0-5.7\
)
Generator ........ .26-.33 (6.6-8.3) ...... .36-.42 (9.2-10.6\
)
P/S .............. .28-.36 (7.2-9.0) ..... .40-.46 (10.2-11.6\
)
1.8L
Generator ........ .28-.31 (7.0-8.0) ...... .33-.39 (8.5-10.0\
)
P/S & A/C ........ .28-.36 (7.0-9.0) ..... .39-.43 (10.0-11.0\
)
Montero
A/C ................ .20-.24 (5.0-6.0) ....... .26-.30 (6.5-7.5\
)
Generator .......... .16-.20 (4.0-5.0) ....... .22-.26 (5.5-6.5\
)
P/S ................ .42-.54 (10.7-13.7) ... .58-.66 (14.8-16.8\
)
Montero Sport
2.4L
A/C .............. .20-.22 (5.0-6.0) ....... .24-.26 (6.0-6.5\
)
Generator ........ .22-.29 (5.5-7.5) ....... .30-.33 (7.5-8.5\
)
P/S .............. .16-.24 (4.0-6.0) ....... .24-.28 (6.0-7.0\
)
3.0L
A/C .............. .17-.20 (4.3-5.1) ....... .22-.26 (5.6-6.5\
)
Generator ........ .22-.29 (5.5-7.5) ....... .31-.35 (8.0-9.0\
)
P/S .............. .44-.52 (11.0-13.0) ... .56-.64 (14.0-16.0\
)
3000GT
SOHC
A/C .............. .26-.28 (6.5-7.0) ....... .30-.34 (7.5-8.5\
)
Generator & P/S .. .16-.20 (4.0-5.0) ....... .24-.32 (6.0-8.0\
)
DOHC
Generator ........ .14-.16 (3.5-4.0) ....... .16-.20 (4.0-5.0\
)
P/S .............. .30-.35 (7.5-9.0) ..... .41-.49 (10.4-12.4\
)
(1) - With 22 lbs. (10 kg) pressure applied midway between pulleys.
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MECHANICAL CHECKS
ENGINE COMPRESSION
Check engine compression with engine at normal operating
temperature, all spark plugs removed and throttle wide open.
COMPRESSION SPECIFICATIONS TABLE
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Application (1) Specification
Compression Ratio
1.5L (VIN A) ..................................... 9.0:1
1.8L (VIN C) ..................................... 9.5:1
2.0L
(VIN F) ........................................ 8.5:1
(VIN Y) ........................................ 9.6:1
2.4L (VIN G) ..................................... 9.5:1
3.0L
Page 252 of 1501
(VIN H) ........................................ 8.9:1
(VIN J) ....................................... 10.0:1
(VIN K) ........................................ 8.0:1
(VIN P) ........................................ 9.0:1
3.5L (VIN M & P) ................................. 9.0:1
Compression Pressure
1.5L (VIN A) ..................... 192 psi (13.4 kg/cm
)
1.8L (VIN C) ..................... 199 psi (13.9 kg/cm)
2.0L (VIN F) ..................... 178 psi (12.5 kg/cm)
2.0L (VIN Y) ............ 170-225 psi (11.7-15.5 kg/cm)
2.4L (VIN G) ..................... 192 psi (13.4 kg/cm)
3.0L
(VIN H & P) .................... 171 psi (12.0 kg/cm
)
(VIN J) ........................ 185 psi (13.0 kg/cm)
(VIN K) ........................ 156 psi (10.9 kg/cm)
3.5L (VIN M & P) ................. 171 psi (12.0 kg/cm)
Maximum Variation
Between Cylinders ( 2) ............... 14 psi (1.0 kg/cm
)
( 1) - See A - ENGINE/VIN ID article for VIN information.
( 2) - On Eclipse 2.0L non-turbo engine, maximum variation
between cylinders is 25 percent.
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VALVE CLEARANCE
NOTE: All engines are equipped with hydraulic lifters. No
adjustment is required.
IGNITION SYSTEM
IGNITION COIL
IGNITION COIL RESISTANCE - Ohms @ 68F (20C) TABLE \
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Application (1) Primary Secondary
1.5L (VIN A) ............ .5-.7 .......... 15,000-22,000
1.8L (VIN C) ............. ( 2) ........... 14,000-21,000
2.0L
(VIN F) .............. .70-.86 ......... 11,300-15,300
(VIN Y) .............. .51-.61 ......... 11,500-13,500
2.4L (VIN G)
Eclipse .............. .74-.90 ......... 20,100-27,300
Galant ............... .9-1.2 .......... 20,000-29,000
Montero Sport ........ .67-.81 ......... 11,300-15,300
3.0L
(VIN H) .............. .72-.88 ......... 10,300-13,900
(VIN J & K) .......... .67-.81 ......... 11,300-15,300
(VIN P) .............. .74-.90 ......... 20,100-27,300
3.5L
(VIN M) .............. .74-90 .......... 20,100-27,300
(VIN P) .............. .50-.70 ........... 9000-13,000
( 1) - See A - ENGINE/VIN ID article for VIN information.
( 2) - Information is not available from manufacturer at time
of publication.
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HIGH TENSION WIRE RESISTANCE
Wire resistance should not exceed 22,000 ohms for all models
Page 253 of 1501
except Eclipse 2.0L non-turbo and Montero. On Eclipse 2.0L non-turbo,
resistance should not exceed 8000 ohms. On Montero, resistance should
not exceed 26,000 ohms.
SPARK PLUGS
SPARK PLUG TYPE TABLE \
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Application (1) Nippondenso No.
1.5L (VIN A) ................................... W16EPR-11
1.8L (VIN C) ................................... K16PR-U11
2.0L (VIN F) ......................... W20ETR-L8 Or W20EPR
2.0L (VIN Y) .................................. ( 2) RC9YC5
2.4L (VIN G) ................................... K16PR-U11
3.0L
(VIN H) ....................................... W16EPR11
(VIN J, K & P) .............................. PK20PR-P11
3.5L
(VIN P) ...................................... PK20PR-11
(VIN M) ..................................... PK16PR-P11
( 1) - See A - ENGINE/VIN ID article for VIN information.
( 2) - Champion Spark Plug.
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SPARK PLUG SPECIFICATIONS TABLE \
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Application (1) Gap In. (mm) Torque Ft. Lbs. (N.m)
Diamante ....... .039-.043 (1.0-1.1) ..... 15-21 (20-30)
Eclipse 2.0L
Non-Turbo .... .048-.053 (1.2-1.4) ........... 20 (28)
Turbo ........ .028-.031 (.7-.8) ............. 18 (25)
All Others ..... .039-.043 (1.0-1.1) ........... 18 (25)
( 1) - DO NOT adjust gap on Platinum spark plugs.
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FIRING ORDER
Fig. 1: Firing Order Firing Order (4-Cylinder)
Page 270 of 1501
COOLING SYSTEM SPECIFICATIONS & ENGINE COOLING FANS
1998 Mitsubishi Montero
1997-98 ENGINE COOLING
Mitsubishi Specifications & Electric Cooling Fans
Diamante, Eclipse, Galant, Mirage, Montero, Montero Sport,
3000GT
SPECIFICATIONS
BELT ADJUSTMENT
NOTE: Use illustration for water pump drive belt routing. See
Figs. 1-6. The terms alternator and generator are used
interchangeably.
BELT ADJUSTMENT
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Application Deflection (1) In. (mm)
Diamante ....................................................... ( 2)
Eclipse & Galant
2.0L Non-Turbo ............................................... ( 2)
2.0L Turbo & 2.4L
Generator & Water Pump .................... 0.35-0.45 (9.0-11.4)\
Water Pump & Power Steering ................ 0.22-0.32 (5.6-8.1)\
Mirage
1.5L ........................................ 0.34-0.45 (8.6-11.4)\
1.8L ......................................................... ( 2)
Montero
A/C .......................................... 0.26-0.30 (6.6-7.6)\
Generator & Water Pump ................... ( 3) 0.22-0.26 (5.6-6.6)
Water Pump & Power Steering ................ 0.54-0.70 (13.7-17.8)\
Montero Sport
2.4L
A/C ........................................ 0.24-0.26 (6.1-6.6)\
Generator & Water Pump ................. ( 4) 0.28-0.35 (7.1-8.9)
Water Pump & Power Steering ................ 0.22-0.30 (5.6-7.6)\
3.0L
A/C ........................................ 0.22-0.26 (5.6-6.6)\
Generator & Water Pump ................. ( 3) 0.20-0.27 (5.1-6.8)
Water Pump & Power Steering .............. 0.52-0.68 (13.2-17.3)\
3000GT ......................................................... ( 3)
( 1) - With 22 lbs. (10 kg) pressure applied midway on belt run.
Values are for a used belt.
( 2) - Water pump is driven by timing belt. Timing belt deflection is
controlled by timing belt automatic tensioner.
( 3) - Measured between water pump pulley and crankshaft pulley.
( 4) - Measured between water pump pulley and generator pulley.
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Page 333 of 1501
![MITSUBISHI MONTERO 1998 Service Manual IGNITION TIMING
IGNITION TIMING SPECIFICATIONS (Degrees BTDC @ RPM) TABLE\
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\](/manual-img/19/57333/w960_57333-332.png "MITSUBISHI MONTERO 1998 Service Manual IGNITION TIMING
IGNITION TIMING SPECIFICATIONS (Degrees BTDC @ RPM) TABLE\
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IGNITION TIMING
IGNITION TIMING SPECIFICATIONS (Degrees BTDC @ RPM) TABLE\
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Application ( 1) Basic ( 2) ( 3) ( 4) Actual
1.5L ................ 2-8 @ 650-750 ....... 10 @ 600-800
1.8L ................ 2-8 @ 600-800 ........ 5 @ 600-800
2.0L
Non-Turbo .............. ( 5) ..................... ( 5)
Turbo ............. 2-8 @ 650-850 ........ 8 @ 650-850
2.4L ................ 2-8 @ 650-850 ....... 10 @ 650-850
3.0L ................ 2-8 @ 600-800 ....... 15 @ 600-800
3.5L ................ 2-8 @ 600-800 ....... 15 @ 600-800
( 1) - With ignition timing adjustment connector grounded or
vacuum hose (farthest from distributor) disconnected.
( 2) - With ignition timing adjustment connector ungrounded
or vacuum hose (farthest from distributor) connected.
( 3) - If vehicle altitude is more than 2300 feet above sea
level, actualtiming may be advanced (5 degrees).
( 4) - Actual ignition timing is approximate and may
fluctuate plus or minus 7 degrees.
( 5) - Ignition timing is NOT adjustable.
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Fig. 2: Locating Data Link Connector (Typical)
Courtesy of Mitsubishi Motor Sales of America
3000GT (DOHC)
1) Ignition timing is controlled by Powertrain Control Module
(PCM) and is not adjustable. Manufacturer provides procedure for
checking timing.
2) Start engine and warm engine until engine temperature