1991 MITSUBISHI ECLIPSE heater

HEATERS AND AIR CONDITIONING - Evaporator
DISASSEMBLY AND REASSEMBLY
24-35
NURE--
3ZOAO457Disassembly steps
1. Wiring harness2. Air conditioner control unit
4*3. Clips4. Evaporater case (upper)5. Air inlet sensor
6. Air therm0 sensor
7. Evaporater case (lower)
8. Evaporater assembly9. Grommet
IO. Insulator11. Rubber insulator
12. Clip+) ++ 13. Expansion valve14. O-ringNOTE
(1) Reverse the disassembly procedures to reassyyble(2) ~~ : Refer to “Service Points of Disassembly,(3) +4 : Refer to“Service Points of Reassembly
(4) m : Non-reusable parts.
.

24-36HEATERS AND AIR CONDITIONING - Evaporator
SERVICE POINTS OF DISASSEMBLY3. REMOVAL OF CLIPS
N24nFAERemove the clips with a flat-blade. screwdriver covered
with a shop towel to prevent damage to case surfaces.
2OAO323
Expansivalve
ClipRubber insulator2OAO324
O-ring13. REMOVAL OF EXPANSION VALVE
Loosen the flare nut by using two wrenches. (for both the
inlet and outlet.)SERVICE POINTS OF REASSEMBLYN24nNAJ13. APPLICATION OF COMPRESSOR OIL TO EXPANSION
VALVE AND O-RINGS
Apply compressor oil to the O-rings and expansion valve ofthe evaporator assembly.

HEATERS AND AIR CONDITIONING - ComDressor24-37
COMPRESSOR <7.8L Engine>
em REMOVAL AND INSTALLATION
F)
*Removal of the distributor CapPost-installation Operation
@Charging of Refrigerant
(Refer to P.24-21.)@Adjustment of Compressor DriveBelt (Refer to P.24-23.)*Checking for Gas Leakage(Refer to P.24-15.)*Performance Test(Refer to P.24-16.)Removal steps of compressor drive belt and
tension pulley
l *1, Compressor drive belt2. Tension pulley assembly installation bolt
3. Tension pulley assembly4. Bolt
5. Tension pulley6. Bolt
7. Adjustment plate
8. Tension pulley bracket2
13-15
ft.lbs.45-55 Nm
H 12 11
-10
2OAO456Removal steps of compressor
4*1. Compressor drive belt
9. Magnetic clutch harness connector
+e l * 10. Suction hose connection+e I)+ 11. Discharge hose connectionl a 12. O-rings
+* l + 13. Compressor14. Compressor bracket
NOTE(1) Reverse the removal procedures to reinstall.(2) l * : Refer to “Service Points of Removal”.
(3) W : Refer to “Service Points of Installation”.(4) m : Non-reusable parts.

24-38HEATERS AND AIR CONDITIONING - Compressor
2OAOO87
SERVICE POINTS OF REMOVALN248BACa1. REMOVAL OF COMPRESSOR DRIVE BELT
A;i(1) Loosen “A” for holding the tension pulley.
(2) Loosen bolt “B” for adjustment, and remove the
4compressor drive belt.
10. DISCONNECTION OF SUCTION
HOSE/ 11. DIS-
CHARGE HOSE
If the hoses are disconnected, cap the hoses with a blank
plug to prevent entry of dust, dirt, and water.
13. REMOVAL OF COMPRESSOR
Caution
Lay the towel on the brake tube to protect them. When
install the compressor, do not damage the brake tubes.This work must be done carefully so as not to spill the
compressor oil.
INSPECTIONN248CACl Checking for heat damage of the tension pulley.
lCheck for excessive play or deflection of the tension pulley.l Check for unusual wear of the tension pulley.
l Check for hardening of the compressor drive belt.
/J+-
lCheck for unusual wear or abrasion of the compressor drive&’
belt.
CONTINUITY CHECK OF THE COMPRESSOR’S MAGNETIC
CLUTCH
(1) Disconnect the compressor’s connector.
(2) Check to be sure that there is continuity between body
ground and terminal
@ at the compressor side.

HEATERS AND AIR CONDITIONING - Compressor24-39
\/20A0400
20R0507OPERATION CHECK OF THE COMPRESSOR’S MAGNETIC
CLUTCH(1) Disconnect the compressor’s connector.
(2) Connect terminal
@ at the compressor side to the positive(+) terminal of the battery, and ground the negative
(-)terminal of the battery to the compressor.
(3) The condition of the compressor’s magnetic clutch can be
considered satisfactory if the operation sound (a “click”
sound) of the magnetic clutch can be heard when this
check is made.
SERVICE POINTS OF INSTALLATIONN248DADa13. INSTALLATION OF COMPRESSOR
If a new compressor is installed, first adjust the amount of
oil according to the procedures described below, and then
install the compressor.
(1) Measure the amount (X cc) of oil within the removed
compressor.(2) Wipe away (from the new compressor) the amount of
oil calculated according to the following formula, and
then install the new compressor.
New compressor oil amount 80 cc (4.9
cu.in.) - X cc =
Y cc
NOTE
Y cc indicates the amount of oil in the refrigerant line,
the condenser, the cooling unit, etc.
12. CONNECTION OF O-RING/
11. DISCHARGE HOSE/
10. SUCTION HOSE
(1) Take care that the O-rings are not caught, crushed or
cracked.(2) Since the O-ring size of suction hose is different from
that of discharge hose, be sure to connection correctly.
1t
/

24-40HEATERS AND AIR CONDITIONING - CompressorCOMPRESSOR
<2.0L DOHC Engine>
REMOVAL AND INSTALLATIONPre-removal OperationaDischarge of Refrigerant
(Refer to
P.24-19.)l Removal of VSV Bracket on theCowl Top <2.0L Turbo>
*Disconnection of High-tension
Cables and Connections for Igni-
tion Coil etc.
*Removal
of Center Bearing
Bracket Mounting Bolt
(Referto GROUP 2-Drive Shaft.)Post-installation Operation
*Installation of VSV Bracket<2.0L Turbo>
*Installation of Center
Bearin!Bracket Mounting Bolt *Adjustment of Compressor Drivt
Belt (Refer to P.24-23.)Kharging of Refrigerant
(Refer to P.24-21.)l ehecking for Gas ‘Leakage(Refer to P.24-15.)l Performance Test(Refer to P.24-16.)
N24SA.-tension pulley
1. Alternator drive belt
4*2. Tension pulley assembly installation boltI)+ 3. Tension pulley assembly~~ 2: Grpressor dnve belt
6. Tension pulley
7. Bolt
8. Adjustment plate
9. Tension pulley bracket23-34
ft.lbs.45-55 Nm
33-39 ft.lbs.
2OAO4.58Removal steps of compressor drive belt andRemoval steps of compressor
1. Alternator drive belt
l *2. Tension pulley assembly installation boltl +3. Tension pulley assemblyl +4. Compressor drive belt10. Magnetic clutch harness connector+* l * 11. Suction hose connectionl + 12. Discharge hose connectionl + 13. O-rings
** l * 14. Compressor15. Compressor bracket
NOTE(I) Reverse the removal procedures to reinstall.(2) +e : Refer to “Service Points of Removal”.
(3) l + : Refer to “Service Points of Installation”.(4) m : Non-reusable parts.

HEATERS AND AIR CONDITIONING - Compressor24-41
2OPOO12
Air condltlonercompressor
SERVICE POINTS OF REMOVALNusenD2. REMOVAL OF TENSION PULLEY ASSEMBLY.,
lN-
STALLATION BOLTS
(1) After loosening nut A (for holding the tension pulley),
loosen bolt B (for adjustment) and reduce the tension ofthe compressor drive belt to zero.
(2) Remove the tension pulley assembly installation
bolts:and then remove the tension pulley assembly together
with the compressor drive belt.
11. DISCONNECTION OF SUCTION
HOSE / 12. DIS-CHARGE HOSE
Refer to
P.24-38.14. REMOVAL OF COMPRESSOR
Refer to
P.24-38.
INSPECTIONN24SCADRefer to
P.24-38.CONTINUITY AND OPERATION CHECK OF THE COM-
PRESSOR’S MAGNETIC CLUTCH
Refer to
P.24-38.
SERVICE POINTS 03: INSTALLATIONN24SDAEa14. INSTALLATION OF COMPRESSOR
Refer to
P.24-39.13. CONNECTION OF
0-RING/lS. DISCHARGE HOSE/
11. SUCTION HOSE
Refer to
P.24-39.4. INSTALLATION OF COMPRESSOR DRIVE
BELT/3.TENSION PULLEY ASSEMBLY
Attach the compressor drive belt to the crankshaft pulley
and the compressor’s pulley, and then install the tension
pulley assembly.
NOTE(1) Hold the tension pulley assembly so that the compres-
sor drive belt does not slip out of place; and while doingso install the tension pulley assembly.
(2) Install the tension pulley assembly installation bolts in
the
@ + @ sequence.

HEATERS AND AIR CONDITIONING - Compiessor24-43
2OW660
2OW8628. REMOVAL OF FELT
Using a flat-tip
0 screwdriver, remove the felt from the
front housing.
11. REMOVAL OF SHAFT SEAL
Using a flat-tip
0 screwdriver, remove the shaft seal from
the front housing.
INSPECTIONN24TGAH
lCheck the surface of the clutch hub for scoring or bluing.
l Check the surface of the rotor for scoring or bluing.
l Check the sealing surfaces for cracks, scratches and
deformation.
lCheck the front housing for cracks or scoring on the sealing
surfaces.l Check the compressor shaft for scoring.
SERVICE POINTS OF REASSEMBLYN24StiAC11. INSTALLATION OF SHAFT SEAL
(1) Lubricate the shaft seal with specified compressor oil.
Specified compressor oil:
DENS0 OIL 6 or SUNISO 5GS(2) Set the shaft seal to the front housing so that the
projection side of the center ring is at the shaft seal
side.(3) Using a 21 mm
(.83 in,) socket, install the shaft seal.
7. INSTALLATION OF FRONT HOUSING
(1) Apply the specified compressor oil on the shaft.
Specified compressor oil:
DENS0 OIL 6 or SUNISO 5GS(2) Taking care to prevent injuring the lip area of the shaft
tool, mount the front housing.
(3) Mount the bolt on the shaft, and then measure the
shaft starting torque.
Standard value: 5.0 Nm (43
in.lbs.) or less
(4) Remove the bolt from the shaft.