1990 MITSUBISHI SPYDER engine

55-34HEATER, AIR
AND VENTILATION
Compressor and Tension Pulley
Engine (Turbo) and
DISASSEMBLY AND REASSEMBLY55200460070
Disassembly steps
1. Refrigerant-temperature switch2.Pulley l Air gap adjustment 3. N u t 4. Armature plate5. Snap ring
6. Rotor 7. Snap ring.
O-ring11. High-pressure relief valve
DISASSEMBLY SERVICE POINTS
REFRIGERANT-TEMPERATURE SWITCH
REMOVAL
(1) Remove the compressor fitting block.
(2) Disconnect the snap ring from the inside of the fitting
block to remove the refrigerant-temperature switch.
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HEATER, AIR Compressor and Tension Pulley
AND VENTILATION Engine (Turbo) and Engine>55-35
Clutch coil
Clutch coilSnap-ringI
Crankshaft
Serration notch
NUT REMOVAL
Use the special tools to remove the nut.
REASSEMBLY SERVICE POINTS
CLUTCH COIL INSTALLATION
When installing the clutch coil to the A/C compress
or body,
install so that the pin hole of the A/C compressor body and
the clutch coil projection are aligned.
SNAP RING INSTALLATION
Install the snap ring so that the tapered surface i s at the
outer side.
ARMATURE PLATE INSTALLATION
Align the mating mark of the crankshaft and the mating
mark of the armature plate, and then’ fit them toge ther.
NUT INSTALLATION
Use the special tools to remove the nut.
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55-36HEATER, AIR
AND VENTILATION
Compressor and Tension Pulley
Engine (Turbo) and
Feeler gauge
temperature
switch
AIR GAP ADJUSTMENT
Check whether or not the air gap of the clutch is w ithin the
standard value.
Standard value: mm
NOTE
If there is a deviation of the air gap from the value,
make the necessary adjustment by adjusting the numb er of
shims.
INSPECTION
lCheck the of the armature for scoring or bluing.
lCheck the surface of the rotor for scoring or bluing.
l Check the sealing surfaces for cracks, scratches an d
deformation.
lCheck the front housing for cracks or scoring on the sealing
surfaces.
lCheck the compressor shaft for scoring.
REFRIGERANT-TEMPERATURE SWITCH CONTINUITY
CHECK
(1) Immerse the refrigerant-temperature switch engine oil.
(2) Use an ohmmeter to check the continuity between the
terminals (1) or (2) when the engine oil has become
heated.
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Approx. 160 (320
No continuity
Standard value:
Temperature
Continuity (ON)Less than approx.
No continuity (OFF)Approx. or more [until
the temperature drops to approx.
when
Caution
Do not heat the oil more than necessary.,

HEATER, AIR Compressor and
AND VENTILATION Engine
HIGH-PRESSURE
The high-pressure relief valve is a safety feature which re-
leases part of the refrigerant inside the system into the atmo-
sphere when the
psi) during air conditioning operation.
Once the pressure inside the system has bean reduced to
2,940 psi) or lower,the ‘valve
closes, thus allowing, continued
If a leak is detected at section A,
relief valve.The valve can be used unless there is a
leak from that section. ,
(2) If a leak is detected at section
retighten the valve.
If the leak persists after retightening the valve, replace
. .. .tne
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55-38HEATER, AIR
AND VENTILATION Compressor and Tension Pulley Engine (Non-turbo)>
COMPRESSOR AND TENSION PULLEY ENGINE
REMOVAL AND INSTALLATION
Pm-removaland Post-installation Operation Refrigerant Discharging and Charging(Refer to (2) Under Cover Removal and Installation(Refer to GROUP 42 Under Cover.)
(3) Compressor Drive Belt Adjustment
(Refer to GROUP
On-vehicle Service.)
CAUTIONPlug refrigerant lines to prevent from when disconnecting them.I
H o s e c o n n e c t i o n
Compressor oil: ND-OIL 8
Tension pulley and tension pulley
bracket removal steps
1. Compressor drive belt2. Shaft
3. Tension pulley
4, Cover
5. Adjust plate
6. Tension pulley bracket
Compressor and compressorbracket removal steps
1. Compressor drive belt7. Compressor connector
8. Discharge hose connection
9. Suction hose connection
10. O-ring 11. Compressor 12. Tension pulley and tension pulley
bracket assembly
13. Compressor bracket
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Compressor
AND VENTILATION,
REMOVAL SERVICE
COMPRESSOR DRIVE BELT REMOVAL
(1)Loosen nut for holding the tension pulley.
(2) Loosen bolt “B” for adjustment.
(3) Loosen the power steering oil pump fixing bolt. (Refer to
Power Oil Pump
Engine
(4) Remove the ‘compressor drive belt,
REMOVAL
When doing this work, be careful not to
oil.
INSTALLATION SERVICE POINTS
COMPRESSOR INSTALLATION
If a new compressor is installed, first adjust the amount of
oil according to the procedures’ described
and then
install the compressor.
Measure the amount (x of oil within the
removed compressor.
(2) Drain (from the new compressor) the amount of o il calcu-
lated according to the following formula, and then install
then new compressor.
New compressor oil amount
( 3 . 4
NOTE
(1) (y indicates the amount of oil in the
refrigerant line, the condenser, the evaporator etc .
(2) When replacing the following parts as well as t he
compressor, subtract the rated oil amount of the each
part from and from the
new compressor.
Quantity
E v a p o r a t o r : 4 0
Condenser: 40 (1.35
Suctionhose:10
Receiver: 10
INSPECTION
l
Checking for heat damage of the tension pulley.
l
Check for excessive play or deflection of the tensi on pulley.
l
Check for unusual wear of the tension pulley.
l Check for hardening of the compressor drive belt.
l Check for unusual wear or abrasion of the compresso r
drive belt.
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and Tension
Engine (Non-turbo)>
Bolt mm in.)]
Socket
Deep socket
(14 mm
in.)]
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HUB REMOVAL
(1) Remove the clutch hub mounting bolt.
(2) Tighten a
mm in.) bolt into the hole of the
clutch hub to remove the serration assembly the shaft
and the clutch hub.
SEAL INSTALLATION
Use a 21 mm in.) socket to install the shaft seal so
that the O-ring assembly side is facing the front h ousing.
FELT, FELT HOLDER INSTALLATION
After installing the felt in the felt holder, them to the
front housing using a 14 mm
deep socket.
FRONT HOUSING INSTALLATION
(1) Apply compressor oil to the shaft.
Compressor oil: ND-OIL 8
(2) Install the front housing without damaging the shaft seal
lip.
(3) After installing the front housing, install the clutch hub
mounting bolt to the shaft, and check that the breakaway
torque is within the torque value.
Breakaway torque:
Nm (4 or less

Engine (Turbo) and Engine>
Refrigerant Discharging and Charging(Refer to
Piping or hose connection
1. Liquid pipe A
2. Liquid pipe
3. Liquid pipe 4. Receiver assembly
5. Dual pressure switch
60 0 0 0 3 6 4 1
6. Receiver bracket
7. Discharge hose
h o s e
.
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