1998 MITSUBISHI MONTERO wheel

Clutch Pedal Mounting Nut .................................. 21 (29)\
Flywheel Bolt
Montero .................................................. 54 (74)\
Montero Sport ........................................... 98 (132)\
Fulcrum Ball ............................................... 26 (35)\
Hydraulic Line Flare Nut ................................... 11 (15)\
Push Rod Jam Nut ........................................... 10 (13)\
Release Cylinder Mounting Bolt ............................. 27 (36)\
Starter Mounting Bolt ...................................... 23 (31)\
Transfer Case Roll Stopper Bolt ............................ 33 (44)\
Transmission Crossmember Mounting Bolt ..................... 47 (64)\
Transmission Support Bolt
Front (Crossmember) ...................................... 29 (39\
)
Rear ..................................................... 26 (35)\









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D - ADJUSTMENTS
1998 Mitsubishi Montero
1998 ENGINE PERFORMANCE
Mitsubishi - On-Vehicle Adjustments
Diamante, Eclipse, Galant, Mirage, Montero, Montero Sport,
3000GT
ENGINE MECHANICAL
Before performing any on-vehicle adjustments to fuel or
ignition system, ensure engine mechanical condition is okay (i.e.,
engine compression).
VALVE CLEARANCE
VALVE ADJUSTMENT
NOTE: All models use hydraulic valve lifters. Adjustment is not
required.
CHECKING HYDRAULIC VALVE LIFTERS
1) Warm engine to normal operating temperature. Remove valve
cover. Position cylinder No. 1 at TDC on compression stroke. On 4-
cylinder engines, check intake rockers on cylinders No. 1 and 2. Check
exhaust rockers on cylinders No. 1 and 3. On V6 engines, check intake
rockers on cylinders No. 1, 5 and 6. Check exhaust rockers on
cylinders No. 1, 2 and 3.
2) Push downward on end of rocker arm, above lash adjuster.
Rotate crankshaft 360 degrees. On 4-cylinder engines, check intake
rockers on cylinders No. 3 and 4. Check exhaust rockers on cylinders
No. 2 and 4. On V6 engines, check intake rockers on cylinders No. 2, 3
and 4. Check exhaust rockers on cylinders No. 4, 5 and 6. If lash
adjuster is normal, it will feel solid.
3) If lash adjuster moves downward easily when pushed,
replace adjuster. If lash adjuster feels soft or spongy, air has
probably entered lash adjuster. If this occurs, check engine oil
level. If engine oil level is okay, check oil screen and oil screen
gasket for damage.
4) After repairing cause of air ingestion, warm engine to
operating temperature. Drive vehicle at low speed for approximately 5
minutes. Turn engine off for a few minutes.
5) Restart engine and drive at low speed for approximately 5
minutes. Repeat this step several times for about one hour. This helps
remove air from engine oil.
IGNITION TIMING
NOTE: Perform all checks with engine at normal operating
temperature, cooling fan and accessories off, transmission
in Park or Neutral, and front wheels in straight-ahead
position. Ignition timing check procedure for Eclipse 2.0L
non-turbo not available from manufacturer at time of
publication.
Diamante
1) Ignition timing is controlled by Powertrain Control Module
(PCM) and is not adjustable. Manufacturer provides procedure for
checking timing. DO NOT attempt to adjust ignition timing by rotating

is 600-700 RPM. Turn engine off. Curb idle speed is automatically
controlled by Idle Air Control (IAC) system. If curb idle speed is not\
as specified, see DTC P0505 in G - TESTS W/CODES article.
4) Disconnect waterproof female connector from Brown ignition
timing check connector. See Fig. 4. Using a jumper wire, ground
ignition timing check terminal to read basic ignition timing. Using
timing light, read basic ignition timing value. See
IGNITION TIMING SPECIFICATIONS table. If basic ignition timing is
within specification, go to next step. If basic ignition timing is not
within specification, see DTC P0335 in G - TESTS W/CODES article.
5) Remove jumper wire to read actual ignition timing. Using
timing light, read actual ignition timing value. If actual ignition
timing is not within specification, see DTC P0335 in G - TESTS W/CODES
article.
All Other Models
1) Ignition timing is controlled by Powertrain Control Module
(PCM) and is not adjustable. Manufacturer provides procedure for
checking timing. On models with distributor, DO NOT attempt to adjust
ignition timing by rotating distributor.
2) Connect scan tool to Data Link Connector (DLC). DLC is
located below dash, near steering column. See Fig. 2. Install a timing
light. Start engine and allow it to idle.
3) Using scan tool, read curb idle speed (RPM). Ensure curb
idle speed is about 750 RPM. Turn engine off. Curb idle speed is
automatically controlled by Idle Air Control (IAC) system. If curb
idle speed is not as specified, see DTC P0505 in G - TESTS W/CODES
article.
CAUTION: MFI system actuator test must be cancelled or test will
continue to run for 27 minutes. Driving vehicle under this
condition may damage engine.
4) Using scan tool, select MFI SYSTEM ACTUATOR TEST, then
select item 17 (BASIC IGNITION TIMING). Read basic ignition timing
value. See IGNITION TIMING SPECIFICATIONS table. If basic ignition
timing is within specification, go to next step. If basic ignition
timing is not within specification, cancel MFI system actuator test.
See DTCS P0100 (except Mirage 1.5L), P0105, P0115 and P0335 in G -
TESTS W/CODES article.
5) Read actual ignition timing value. If actual ignition
timing is not within specification, cancel MFI system actuator test.
See DTCS P0100 (except Mirage 1.5L), P0105, P0115 and P0335 in G -
TESTS W/CODES article.
IDLE SPEED & MIXTURE
* PLEASE READ THIS FIRST *
NOTE: Perform adjustments with engine at normal operating
temperature, cooling fan and accessories off, transmission
in Park or Neutral, and front wheels in straight-ahead
position.
BASIC IDLE SPEED
NOTE: Basic idle speed adjustment information on Eclipse 2.0L
non-turbo engine is not available from manufacturer at time
of publication.
3000GT
1) Ensure vehicle is at normal operating temperature with all

MIXTURE. Perform all adjustments with engine at normal
operating temperature, front wheels in straight-ahead
position, cooling fan and all accessories off, and
transmission in Park or Neutral.
Eclipse 2.0L Non-Turbo
1) TP sensor is not adjustable. Disconnect TP sensor
connector. Using external ohmmeter, measure resistance between TP
sensor terminals No. 1 and 3. See Fig. 8. If resistance is not 3500-
6500 ohms, replace TP sensor.
2) While slowly rotating throttle valve from idle to full
open, measure resistance between TP sensor terminals No. 2 and 3. If
resistance does not change smoothly in proportion to throttle opening,
replace TP sensor.
Montero
1) Disconnect TP sensor connector. Using jumper wires,
connect an external ohmmeter between TP sensor terminals No. 1 and 2.
See Fig. 9 . Insert .025" (.65 mm) feeler gauge between fixed speed
adjusting screw and throttle lever.
2) Loosen TP sensor mounting screws and rotate TP sensor
fully clockwise. Ensure there is continuity between terminals No. 1
and 2. Rotate TP sensor counterclockwise until there is no continuity,
and tighten screws. Install Test Harness (MB991348) between TP sensor
and harness connector.
3) Turn ignition on. Using external voltmeter, measure TP
sensor output voltage between terminals No. 1 and 3. If voltage is not
.4-1.0 volt, check harness and sensor. See DTC P0120 in G - TESTS
W/CODES article.
All Other Models
1) Disconnect TP sensor connector. Using jumper wires,
connect an external ohmmeter between TP sensor terminals No. 1 and 2
on Diamante or No. 3 and 4 on all other models. See Fig. 9. On
Diamante and Mirage 1.8L with cruise control, insert .055" (1.40mm)
feeler gauge between fixed speed adjusting screw and throttle lever.
On Galant, insert .025" (.65 mm) feeler gauge between fixed speed
adjusting screw and throttle lever. On all other models, insert .018"
(.45 mm) feeler gauge between fixed speed adjusting screw and throttle\
lever.
2) Loosen TP sensor mounting screws and rotate TP sensor
fully counterclockwise. Ensure there is continuity between terminals
No. 1 and 2 on Diamante, or No. 3 and 4 on all other models. Rotate TP
sensor clockwise until there is no continuity and tighten screws.
Install Test Harness (MB991348) between TP sensor and harness
connector.
3) Turn ignition on. Using external voltmeter, measure TP
sensor output voltage between terminals No. 1 and 3 on Diamante, or
No. 2 and 4 on all other models. If voltage is not .4-1.0 volt, check
harness and sensor. See DTC P0120 in G - TESTS W/CODES article.
Fig. 8: TP Sensor Connector Terminals (Eclipse 2.0L Non-Turbo)
Courtesy of Mitsubishi Motor Sales of America

AXLE RATIO SPECIFICATIONS








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Application Ratio
Montero ..................................................... 4.27:1
Montero Sport .................................................. (1)
( 1) - On vehicles equipped with wide fender, ratio is 4.64:1. On
vehicles with narrow fender, ratio is 4.27:1.









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LUBRICATION
CAPACITY
DIFFERENTIAL FLUID CAPACITY








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Application Specification
Montero & Montero Sport ............................ 2.4 Pts. (1.1L)\









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FLUID TYPE
All models use fluid type SAE 80W-90/API GL-5.
TROUBLE SHOOTING
NOTE: See TROUBLE SHOOTING - BASIC PROCEDURES article in the
GENERAL TROUBLE SHOOTING section.
REMOVAL & INSTALLATION
AXLE SHAFTS R & I
Removal
1) Raise and support vehicle. Remove wheels and undercover.
Ensure hub is in free-wheeling position. Place transfer case in 2H
position. Remove drive hub cover, snap ring and shim from axle shaft.
See Fig. 3 . Remove brake calipers and support aside.
2) Disconnect tie rod assembly. Support lower control arm
with jack. Separate ball joints from knuckle. Remove knuckle and front
hub assembly. Using flat-blade pry bar, carefully remove left axle
shaft from differential carrier. DO NOT damage oil seal. On right axle
shaft, remove axle shaft-to-inner shaft flange retaining bolts. Remove
right axle shaft.
CAUTION: Replace circlips on BJ/DOJ splined shaft end.
Installation
1) Install right axle shaft on inner shaft flange. Install
new circlip on DOJ side of left axle shaft. Carefully install left
axle shaft into differential. DO NOT damage oil seal.
2) Reinstall knuckle with front hub assembly. To complete
installation, reverse removal procedure. Install shim and snap ring.
Check axle end play. See Fig. 4. End play should be .016-.028" (.4-.7
mm). If end play is not within specification, install correct shim.

Brake Caliper Bolt ......................................... 65 (88)\
Carrier-To-Housing Tube Bolt
Montero ...................................................... (1)
Montero Sport ...................................... 58-72 (79-98)\
Differential
Cover Bolt ............................................... 14 (19)\
Drain Plug
Montero .......................................... 43-51 (58-69)\
Montero Sport .............................................. ( 1)
Fill Plug
Montero ................................................ 39 (53)\
Montero Sport .......................................... 36 (49)\
Drive Shaft Flange Bolt .............................. 36-43 (49-58)\
Front Crossmember Bolt .............................. 72-87 (98-118)\
Hub Cover Bolt ....................................... 13-25 (18-34)\
Knuckle-To-Ball Joint Nut
Upper
Montero ................................................ 54 (73)\
Montero Sport .................................... 44-65 (60-88)\
Lower
Montero .............................................. 108 (146)\
Montero Sport ............. .................. 87-130 (118-176)\
Mounting Bracket-To-Frame Bolt ...................... 58-80 (79-108)\
Mounting Bracket-To-Housing Tube Bolt ................ 58-72 (79-98)\
Pinion Flange Nut
Montero
A/T .................................................. 137 (186)\
M/T .................................................. 159 (216)\
Montero Sport .......................................... 159 (216)\
Right Drive Axle-To-Inner Shaft Bolt ................. 36-43 (49-58)\
Ring Gear-To-Case Bolt ............................... 58-65 (79-88)\
Side Bearing Cap Bolt ................................ 40-47 (54-64)\
Tie Rod-To-Knuckle Nut
Montero .................................................. 33 (45)\
Montero Sport ............................................ 32 (43)\
Wheel Lug Nuts
Montero ........................................... 72-87 (98-118)\
Montero Sport
Aluminum Wheel .................................. 73-86 (99-117)\
Steel Wheel ................................... 87-101 (118-137)\
INCH Lbs. (N.m)
Undercover-To-Frame Bolts (Montero) .............. 84-108 (9.5-12.2\
)
( 1) - Information is not available from manufacturer.









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TESTING & INSPECTION
AXLE SHAFT END PLAY
Montero & Montero Sport
Using dial indicator, check axle shaft end play. End play
should be .010" (.25 mm). If end play is not within specification,
replace axle bearing. See AXLE SHAFT OVERHAUL under OVERHAUL.
AXLE TOTAL BACKLASH
1) Raise and support rear axle. Place transmission in
Neutral. Apply parking brake. Rotate drive shaft clockwise. Place
reference marks on pinion dust cover and differential housing.
2) Rotate drive shaft counterclockwise, and measure distance
between reference marks. Differential must be removed and backlash
adjusted if distance exceeds 0.2" (5 mm). See RING GEAR BACK-LASH
procedure under DIFFERENTIAL ASSEMBLY (LIMITED SLIP) under OVERHAUL.
LIMITED SLIP DIFFERENTIAL PRELOAD
1) Place transmission in Neutral. Block front wheels. Raise
one rear wheel off ground and remove wheel. Release parking brake.
2) Using torque wrench and axle puller adapter, measure
starting torque while rotating wheel in forward direction. See Fig. 1.
Differential must be repaired if torque is less than 18 ft. lbs. (25
N.m).
Fig. 1: Testing Limited Slip Differential Preload
Courtesy of Mitsubishi Motor Sales of America.
LOCKING DIFFERENTIAL (MONTERO)
Air Pump

Connect air pressure gauge in-line to air hose from air pump.
Air pump is located in right storage area, under rear seat. Connect
battery voltage to air pump (positive lead to Red wire). The air pump
is operating correctly when the following sequences occur;
* Pump should operate for no more than 5 seconds.
* Pressure should be 4-6 psi (.28-.41 kg/cm
) within 10-20
seconds after pump has stopped.
* After air pump has stopped operating, it should not restart
operating for 5 minutes.
Center Differential Lock Operation Switch
See ANTI-LOCK BRAKE SYSTEM article in BRAKES.
Differential Lock Switch
Remove switch from center console. To test switch operation,
see Fig. 2 . Replace switch as needed.
Differential Lock Control Unit
See ANTI-LOCK BRAKE SYSTEM article in BRAKES.
Lock Detection Switch
1) Raise and support vehicle. Disconnect air hose connection
near rear differential. Connect air source with pressure regulator and
pressure gauge. Apply 4 psi (.28 kg/cm
) pressure. Disconnect lock
detection switch harness connector.
2) Using ohmmeter, check if continuity exists with air
pressure applied. Continuity should exist with air pressure applied.
If continuity exists, ensure axle is locked by attempting to turn rear
wheels separately of each other.
3) If continuity does not exist, go to step 4). If continuity\
does exist but axles are not locked, see CARRIER ASSEMBLY under
REMOVAL & INSTALLATION and inspect locking assembly.
4) Remove detection switch from housing. Using ohmmeter,
check continuity of switch. Continuity should exist with switch
plunger extended. With plunger in neutral position, continuity should
not exist. Replace switch as needed.
Fig. 2: Checking Differential Lock Switch Continuity
Courtesy of Mitsubishi Motor Sales of America.
REMOVAL & INSTALLATION