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Mitsubishi Montero (1998+). Manual - part 10

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)

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.

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)

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.

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

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

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.

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