1998 MITSUBISHI MONTERO oil

Only NEW, moisture-free refrigerant oil should be used in the
air conditioning system. This oil is highly refined and dehydrated so
moisture content is less than 10 parts per million. The oil container
must be tightly closed at all times when not in use, or moisture from
the air will be absorbed into the refrigerant oil.
SERVICING PRECAUTIONS
DISCHARGING SYSTEM
Discharge A/C system, using approved refrigerant
recovery/recycling equipment that meets SAE J2210 requirements. Always
follow recovery/recycling equipment manufacturer's instructions. After
refrigerant recovery process is completed, replace any refrigerant oil
removed with the same amount of NEW refrigerant oil.
DISCONNECTING LINES & FITTINGS
After system is discharged, carefully clean area around all
fittings to be opened. Always use 2 wrenches when tightening or
loosening fittings. Some refrigerant lines are connected with a
coupling. Special tools may be required to disconnect lines. Cap or
plug all openings as soon as lines are removed. DO NOT remove shipping
caps from replacement components until ready to install.
CONNECTING LINES & FITTINGS
NOTE: Ensure all replacement component connections match
connections of system being worked on.
Always use a NEW gasket or "O" ring when connecting lines or
fittings. Coat "O" ring with NEW refrigerant oil and ensure it is not
twisted during installation. Always use two wrenches to prevent damage
to lines and fittings.
PLACING SYSTEM IN OPERATION
After component service or replacement has been completed and
all connections have been made, thoroughly evacuate system with a
vacuum pump. Charge system with proper amount of refrigerant and
perform leak test. See REFRIGERANT OIL & REFRIGERANT SPECIFICATIONS
table for system capacities. Ensure there are no leaks at any fitting
that has been opened. After system has been leak tested, check system
performance.
NIPPONDENSO 10-CYL.
Eclipse 2.0L Non-Turbo & Montero
Replacement compressor is shipped with NEW refrigerant oil.
Drain, measure and discard refrigerant oil from old compressor. Drain
NEW refrigerant oil from replacement compressor equal to difference
between amount drained from old compressor and amount shipped in
replacement compressor. If any other components are replaced, add NEW
refrigerant oil as specified. See COMPONENT REFRIGERANT OIL CAPACITIES
(MITSUBISHI - NIPPONDENSO 10-CYL.) table.
COMPONENT REFRIGERANT OIL CAPACITIES TABLE (NIPPONDENSO)









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Component Ounces
Compressor ( 1)

Eclipse 2.0L Non-Turbo ............................. 3.4
Montero ............................................ 4.1
Condenser ............................................ 1.4
Evaporator ........................................... 1.4
Receiver-Drier ....................................... 0.3
Suction Hose ......................................... 0.3
(1) - If replacement compressor is shipped without
refrigerant oil, add same amount of NEW refrigerant
oil to replacement compressor that was drained from
old compressor.









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SANDEN SCROLL
Diamante, Eclipse 2.0L Turbo & 2.4L, Galant, Mirage, Montero
Sport and 3000GT
Replacement compressor is shipped with NEW refrigerant oil.
Drain, measure and discard refrigerant oil from old compressor. Drain
NEW refrigerant oil from replacement compressor equal to difference
between amount drained from old compressor and amount shipped in
replacement compressor. If any other components are replaced, add NEW
refrigerant oil as specified. See COMPONENT REFRIGERANT OIL CAPACITIES
(SANDEN SCROLL) table.
COMPONENT REFRIGERANT OIL CAPACITIES TABLE (SANDEN SCROLL)









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Component Ounces
Compressor ( 1)
Diamante, Eclipse 2.0L Turbo & 2.4L & Galant ... 5.7-6.4
Mirage ............................................. 4.4
3000GT ............................................. 5.4
Condenser
Diamante, Eclipse 2.0L Turbo & 2.4L,
Galant, Mirage & 3000GT ............................ 0.5
Evaporator
Diamante, Eclipse 2.0L Turbo & 2.4L,
Galant, Mirage & 3000GT ............................ 2.0
Receiver-Drier
Diamante, Eclipse 2.0L Turbo & 2.4L,
Galant, Mirage & 3000GT ............................ 0.3
Refrigerant Lines
Diamante, Eclipse 2.0L Turbo & 2.4L,
Galant, Mirage & 3000GT ............................ 0.3
( 1) - If replacement compressor is shipped without
refrigerant oil, add same amount of NEW refrigerant
oil to replacement compressor that was drained from
old compressor.









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A/C COMPRESSOR SERVICING
1998 Mitsubishi Montero
1998 GENERAL SERVICING
Mitsubishi - Compressor Servicing
Diamante, Eclipse, Galant, Mirage, Montero, Montero Sport &
3000GT
A/C COMPRESSOR APPLICATIONS
A/C COMPRESSOR APPLICATION TABLE








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Application Compressor
Diamante ......................... Sanden MSC105CVS Scroll
Eclipse
2.0L Non-Turbo ............. Nippondenso 10PA17C 10-Cyl.
2.0L Turbo & 2.4L .............. Sanden MSC105CVS Scroll
Galant ............................ Sanden MSC90C12 Scroll
Mirage ............................... Sanden MSC90 Scroll
Montero ....................... Nippondenso 10PA15 10-Cyl.
Montero Sport ...................... Sanden MSC105C Scroll
3000GT .............................. Sanden MSC105 Scroll









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NOTE: Due to variety of clutch and shaft seal configurations,
obtain appropriate A/C compressor service tools for
compressor being serviced. Land Rover and Jaguar compressor
service information not available at time of publication.
NIPPONDENSO
CLUTCH COIL
Removal
1) Hold clutch plate stationary. Remove clutch plate center
bolt and clutch plate. If clutch plate cannot be removed by hand,
tighten an 8-mm or 10-mm bolt into clutch plate center bolt hole to
remove clutch plate.
2) Remove shim(s) and pulley snap ring from compressor shaft\
.
Tap pulley using a plastic hammer and remove pulley from compressor
shaft. See Fig. 1 or 2. Remove retaining screw for clutch coil lead.
Remove clutch coil snap ring and clutch coil.
Installation
1) To install, reverse removal procedure. Ensure clutch coil
pin is aligned with hole in compressor housing. Ensure clutch coil
lead is positioned properly. Ensure NEW snap rings are installed with
beveled side facing out. Tighten shaft bolt to 10-13 ft. lbs. (14-17
N.m).
2) Check air gap between clutch plate and pulley. Position
dial indicator on clutch plate. Energize clutch coil and zero dial
indicator. De-energize clutch coil and measure air gap (clutch plate
movement). Ensure air gap between clutch plate and pulley is 0.014-0.
026" (0.35-0.65 mm). If air gap is incorrect, add or remove shim(s) \
as
necessary. Ensure pulley rotates freely.
NOTE: On some compressors, it is necessary to use a dial indicator
on clutch plate to check air gap. Energize clutch coil and
zero dial indicator. De-energize clutch coil and measure air
gap. Ensure air gap is as specified.

SHAFT SEAL
CAUTION: Secure rear housing to compressor body using a vise before
removing front housing through-bolts. Compressor rear housing
may separate from compressor body, spilling refrigerant oil.
Removal
1) Remove clutch coil. See CLUTCH COIL. See Fig. 1 or 2.
Position compressor in a vise so compressor rear housing is secured to
compressor body. Remove front housing through-bolts and front housing.
2) Using a flat-blade screwdriver, remove felt retainer and
felt from front housing. Remove shaft seal snap ring. Using a flat-
blade screwdriver, remove shaft seal and "O" ring. See Fig. 1 or 2.
Installation
1) Inspect compressor shaft and front housing bore for damage
and/or excessive wear. Ensure "O" ring and shaft seal seat are clean.
Apply NEW refrigerant oil to compressor side of front housing bore.
Lubricate "O" ring and shaft seal with NEW refrigerant oil. Using a
21-mm socket, install shaft seal with "O" ring side facing away from
compressor. Install shaft seal snap ring. See Fig. 1 or 2.
2) Install felt into felt retainer. Using a 14-mm deep
socket, install felt and felt retainer. Lubricate compressor shaft.
Install front housing using care not damage shaft seal lip. See Fig. 1
or 2.
3) Alternately tighten front housing through-bolts to 19 ft.
lbs. (26 N.m). Install clutch plate center bolt. Using an INCH-lb.
torque wrench, ensure compressor breakaway torque is 43 INCH lbs. (4.9
N.m) or less. To complete installation, reverse removal procedures.
Ensure air gap between clutch plate and pulley is correct. See
CLUTCH COIL .
Fig. 1: Exploded View Of Compressor (Nippondenso 10PA17C 10-Cyl.)
Courtesy of Toyota Motor Sales, U.S.A., Inc.

Fig. 2: Exploded View Of Compressor (Typical)
Courtesy of Mitsubishi Motor Sales of America.
SANDEN SCROLL
CLUTCH COIL & SHAFT SEAL
Removal
1) Remove drive belt pulley (if equipped). Hold clutch plate\
using Pliers (MB991367) and Bolts (MB991386). Use a ratchet and sock\
et
to remove clutch hub nut.
2) Remove clutch plate. See Fig. 3 or 4. Remove snap ring
with internal snap ring pliers. Remove clutch hub (rotor). Remove snap\
ring and clutch coil.
3) Using an awl, remove bearing cover and retainer. Using
Bearing Remover (MB991456), engage bearing grooves. Place base of
bearing remover over remover arms and tighten nut.
4) Tighten bearing remover bolt to withdraw bearing from
compressor. Engage grooves of Shaft Seal Remover/Installer (MB991458)
and pull straight up on shaft seal.
Installation
1) To install shaft seal, ensure front housing is free of
foreign objects. Lubricate Shaft Seal Protector (MB991459) and place
over compressor shaft. Lubricate shaft seal and install using shaft
seal remover/installer. Remove shaft seal protector.
2) Using a 21-mm socket or Drift (MB991301), carefully press\
bearing onto compressor shaft. Install clutch coil so that alignment
pin is engaged. Install clutch coil snap ring with tapered side facing
out.
3) Align armature plate with crankshaft spline. Tighten shaft
nut to 12 ft. lbs. (16 N.m). Using feeler gauge, ensure air gap
between pressure plate and pulley is 0.02-0.03" (0.5-0.8 mm) on
Diamante and 0.016-0.024" (0.4-0.6 mm) on all other models. If air gap\
is incorrect, add or remove shim(s) as necessary.

HEATER HOSES
HIGH PRESSURE RELIEF VALVES (HPRV)
IDLERS
IN-LINE FILTERS
METAL FITTINGS
METAL LINES
MIX AND AIR CONTROL DOORS (BLEND DOORS)
O-RINGS
ORIFICE TUBES
PILOT-OPERATED ABSOLUTES (POAS)
PLENUMS
PRESSURE CONTROL VALVES
PRESSURE SENSORS
PULLEYS
RADIATORS
RECEIVER-DRIERS
REFRIGERANT
REFRIGERANT OIL
RELAYS
SEALS
SERVICE PORTS
SPRING LOCK COUPLINGS
SUCTION THROTTLING VALVES (STVS)
SWITCHES (ELECTRICAL)
TENSIONERS
THERMISTORS AND PRESSURE SENSORS
THERMOSTATS AND HOUSINGS
VACUUM HOSES AND TUBES
VACUUM RESERVOIRS
VACUUM TUBES
VALVES IN RECEIVER (VIRS)
WATER PUMPS (ELECTRIC AUXILIARY)
WIRING HARNESSES AND CONNECTORS
MOTORIST ASSURANCE PROGRAM (MAP)
OVERVIEW
The Motorist Assurance Program is the consumer outreach
effort of the Automotive Maintenance and Repair Association, Inc.
(AMRA). Participation in the Motorist Assurance Program is drawn from
retailers, suppliers, independent repair facilities, vehicle
manufacturers and industry associations.
Our organization's mission is to strengthen the relationship
between the consumer and the auto repair industry. We produce
materials that give motorists the information and encouragement to
take greater responsibility for their vehicles-through proper,
manufacturer-recommended, maintenance. We encourage participating
service and repair shops (including franchisees and dealers) to adopt
(1) a Pledge of Assurance to their Customers and (2) the Motorist
Assurance Program Standards of Service. All participating service
providers have agreed to subscribe to this Pledge and to adhere to the
promulgated Standards of Service demonstrating to their customers that
they are serious about customer satisfaction.
These Standards of Service require that an inspection of the
vehicle's (problem) system be made and the results communicated to the\
customer according to industry standards. Given that the industry did
not have such standards, the Motorist Assurance Program successfully
promulgated industry inspection communication standards in 1994-95 for
the following systems: Exhaust, Brakes, ABS, Steering and Suspension,
Engine Maintenance and Performance, HVAC, and Electrical Systems.
Further, revisions to all of these inspection communication standards

Connector missing ....... C ............ Require replacement.
Inoperative ............. A ........ (2) Require replacement.
Insulation overheated ... A ............ Require replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose, affecting
performance ............ B .. Require repair or replacement.
Terminal loose, not
affecting performance .. 1 .. Suggest repair or replacement.
( 1) - Determine cause and correct prior to repair or
replacement of part.
( 2) - Inoperative includes intermittent operation or out of
OEM specification.









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BLOWER SWITCHES
See SWITCHES.
CABIN AIR FILTERS
CABIN AIR FILTER INSPECTION








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Condition Code Procedure
Air flow obstruction .... A ............. Require cleaning or
replacement.
Maintenance intervals ... 3 ............ Suggest replacement.
Missing ................. C ............ Require replacement.









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CIRCUIT BREAKERS
See FUSES, FUSIBLE LINKS AND CIRCUIT BREAKERS .
COMPRESSOR CLUTCH ASSEMBLIES
COMPRESSOR CLUTCH ASSEMBLY INSPECTION








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Condition Code Procedure
Air gap incorrect ....... B .. Require repair or replacement.
Bearing seized .......... A .. Require replacement of bearing
or assembly.
Bearing worn, affecting
performance ............ A .. Require replacement of bearing
or assembly.
Coil shows signs of
overheating ............ 1 .... Suggest replacement of coil.
Connector broken ........ A .. Require repair or replacement.
Connector (Weatherpack
type) leaking .......... A .. Require repair or replacement.
Connector melted,

Bracket broken, affecting
performance ............ A ............ Require replacement.
Bracket broken, not
affecting performance .. .. ........ No service suggested or
required.
Bracket corroded,
affecting performance .. A .. Require repair or replacement.
Bracket corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Bracket cracked, affecting
performance ............ A .. Require repair or replacement.
Bracket cracked, not
affecting performance .. 1 .. Suggest repair or replacement.
Bracket holes elongated,
affecting performance .. A .. Require repair or replacement.
Bracket holes elongated,
not affecting
performance ............ .. ........ No service suggested or
required.
Bracket loose, affecting
performance ............ A .. Require repair or replacement.
Bracket loose, not
affecting performance .. 1 .. Suggest repair or replacement.
Bracket missing ......... C ............ Require replacement.
Housing broken, affecting
performance ............ A .. Require repair or replacement.
Housing broken, not
affecting performance .. .. ........ No service suggested or
required.
Housing cracked, affecting
performance ............ A .. Require repair or replacement.
Housing cracked, not
affecting performance .. 1 .. Suggest repair or replacement.
Inoperative ............. A ........... (1) Require repair or
replacement.
Leaking ................. A .. Require repair or replacement.
Noisy ................... 2 ........... ( 2) Suggest repair or
replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ............ Require replacement.
Tubing connection
leaking ................ A .. Require repair or replacement.
( 1) - Inoperative includes intermittent operation or out of
OEM specification.
( 2) - Compressor noise can also be caused by low oil level,
state of charge, air contamination, or type of
refrigerant.









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CONDENSER AIR SEALS
CONDENSER AIR SEAL INSPECTION








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Condition Code Procedure
Leaking ................. A . Require repair or replacement.
Missing ................. C ........... Require replacement.









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CONDENSER FAN MOTORS