clutch TOYOTA CAMRY V20 1986 Service Information

HINT:
wºNew beltº refer to a belt which has been used less
than
5 minutes on a running engine.
wºUsed beltº refer to a belt which has been used on a
running engine for 5 minutes or more.
wAfter installing the drive belt, check that it fits properly
i n the ribbed grooves.
4. START ENGINE
5. TURN ON A/C SWITCH
Check that the A/C operates at each position of the blower
switch.
6. CHECK MAGNETIC CLUTCH OPERATION
If magnetic clutch does not engage, check the A/C fuse.
7. CHECK THAT IDLE INCREASES
When the magnetic clutch engages, engine revolution
should increase.
Standard idle±up rpm:
ON±VEHICLE INSPECTION
1. CHECK CONDENSER FINS FOR BLOCKAGE OR
DAMAGE
If the fins are clogged, clean them with pressurized water.
NOTICE: Be careful not to damage the fins.
2. MAKE SURE THAT DRIVE BELT IS INSTALLED
CORRECTLY
Check that the drive belt tits properly in the ribbed
grooves.
3. CHECK DRIVE BELT TENSION
Using a belt tension gauge, check the drive belt tension.
Belt tension gauge:
Nippondenso BTG±20 (95506±00020) or
Borroughs No. BT±33±73F
Drive belt tension
Standard idle±up rpm:Used Belt New Belt
Engine
Engine2¿¿±FE
2VZ±FE
3S±FE3S±FE
± AIR CONDITIONING SYSTEMOn±vehicle InspectionAC±21

COMPRESSOR
ON±VEHICLE INSPECTION
1. INSTALL MANIFOLD GAUGE SET
(See page AC±23)
2. RUN ENGINE AT APPROX. 1,500 RPM
3. CHECK COMPRESSOR FOR FOLLOWING:
(1) High pressure gauge reading is not lower and low
pressure gauge reading is not higher than normal.
(b) Metallic sound
(e) Leakage from shaft seal
If defects are found, repair the compressor.
4. CHECK MAGNETIC CLUTCH
(a) Inspect the pressure plate, and the rotor for signs of
oil.
(b) Check the clutch bearings for noise and grease leak-
age.
(e) Using an ohmmeter, measure the resistance of the
stator coil between the clutch lead wire and ground.
Standard resistance: 3.4 ± 3.8
at 20°C (68°F)
If resistance value is not as specified, replace the coil.
(d) Connect the positive (+) lead from the battery to ter-
minal 1, check that the magnetic clutch is energized.
If magnetic clutch is not energized, replace the coil.
NOTICE: Do not short positive (+) lead wire on the vehicle
by applying battery voltage.
Installation of Manifold Gauge Set
1. CLOSE BOTH HAND VALVES OF MANIFOLD GAUGE
SET
2. INSTALL CHARGING HOSES OF GAUGE SET TO
CHARGING VALVES
Connect the low pressure hose to the low pressure charg-
ing valve and the high ..pressure hose to the high pres-
sure charging valve. Tighten the hose nuts by hand.
HINT Do not apply compressor oil to the seat of the con-
nection.
± AIR CONDITIONING SYSTEMRefrigeration SystemAC±23

COMPRESSOR
ON±VEHICLE INSPECTION
1. INSTALL MANIFOLD GAUGE SET
(See page AC±23)
2. RUN ENGINE AT APPROX. 1,500 RPM
3. CHECK COMPRESSOR FOR FOLLOWING:
(1) High pressure gauge reading is not lower and low
pressure gauge reading is not higher than normal.
(b) Metallic sound
(e) Leakage from shaft seal
If defects are found, repair the compressor.
4. CHECK MAGNETIC CLUTCH
(a) Inspect the pressure plate, and the rotor for signs of
oil.
(b) Check the clutch bearings for noise and grease leak-
age.
(e) Using an ohmmeter, measure the resistance of the
stator coil between the clutch lead wire and ground.
Standard resistance: 3.4 ± 3.8
at 20°C (68°F)
If resistance value is not as specified, replace the coil.
(d) Connect the positive (+) lead from the battery to ter-
minal 1, check that the magnetic clutch is energized.
If magnetic clutch is not energized, replace the coil.
NOTICE: Do not short positive (+) lead wire on the vehicle
by applying battery voltage.
Installation of Manifold Gauge Set
1. CLOSE BOTH HAND VALVES OF MANIFOLD GAUGE
SET
2. INSTALL CHARGING HOSES OF GAUGE SET TO
CHARGING VALVES
Connect the low pressure hose to the low pressure charg-
ing valve and the high ..pressure hose to the high pres-
sure charging valve. Tighten the hose nuts by hand.
HINT Do not apply compressor oil to the seat of the con-
nection.
± AIR CONDITIONING SYSTEMCompressorAC±23

1. RUN± ENGINE AT IDLE SPEED WITH AIR
CONDITIONING ON FOR 10 MINUTES
2. STOP ENGINE
3. DISCONNECT NEGATIVE CABLE FROM BATTERY
4. REMOVE BATTERY
5. (2VZ±FE ENGINE)
REMOVE IGNITOR BRACKET, RADIATOR FAN AND
CONDENSER FAN
6. DISCONNECT CONNECTOR FOR MAGNETIC
CLUTCH, TEMPERATURE SWITCH AND REVOLU-
TION DETECTING SENSOR
7. DISCHARGE REFRIGERANT FROM REFRIGERATION
SYSTEM
8. DISCONNECT TWO HOSES FROM COMPRESSOR
SERVICE VALVES
Cap the open fitting immediately to keep moisture out of
the system.
9. REMOVE COMPRESSOR
(a) Loosen the drive belt.
(b) Remove the compressor mounting bolts and the
compressor.
± AIR CONDITIONING SYSTEMCompressorAC±26

DISASSEMBLY OF MAGNETIC
CLUTCH
1. REMOVE PRESSURE PLATE
(a) Using SST and a socket, remove the shaft bolt.
SST 07112±76060
(c) Using SST and the socket, remove the pressure plate.
SST 07112±76060(b) Install SST to the pressure plate.
SST 07112±66040
± AIR CONDITIONING SYSTEMCompressorAC±27

(c) Using SST and torque wrench, fasten the magnetic
clutch lead wire to the cylinder block.
Torque: 35 kg±cm (3o in.±ib, 3.4 N±m)
SST 07110±61050
ASSEMBLY OF MAGNETIC CLUTCH
1. INSTALL STATOR
(a) Install the stator on the compressor.
NOTICE: The snap ring should be installed so that its
R±shape looks up. (b) Using SST, install the new snap ring.
SST 07114±84020(c) Remove the stator.
± AIR CONDITIONING SYSTEMCompressorAC±29

4. CHECK CLEARANCE OF MAGNETIC CLUTCH
Check the clearance between the pressure plate and ro-
tor using thickness gauge.
Standard clearance: 0.5
+ 0.15 mm
(0.020
+ 0.0059 in.)
If the clearance is not within tolerance, charge the num-
ber of shims to obtain the standard clearance. 2. INSTALL ROTOR
(a) Install the rotor on the compressor shaft.
(b) Using SST, install the new snap ring.
SST 07114±84020
(b) Using SST and torque wrench, instal! the shaft bolt.
SST 07112±76064
Torque: 135 kg±cm (9.7 ft±Ib, 13 N±m) NOTICE: The snap ring should be installed so that its
R±shape looks up.
3. INSTALL PRESSURE PLATE
(a) Put the shims to the pressure plate.
± AIR CONDITIONING SYSTEMCompressorAC±30

INSTALLATION OF COMPRESSOR
(See page AC±25)
1. INSTALL COMPRESSOR WITH FOUR MOUNTING
BOLTS
Torque:
3S±FE engine 280 kg±cm (20 ft±lb, 27 N±m)
2VZ±FE engine 250 kg±cm (18 ft±lb, 25 N±m)
2. INS TALL DRIV E BE LT(S e e ste ps 2 and 3 on pa ge
AC±21)
3. CONNECT TWO HOSES TO COMPRESSOR SERVICE
VALVES
Torque:
Discharge line 250 kg±cm (18 ft±lb, 25 N±m)
Suction line 250 kg±cm (18 ft±lb, 25 N±m)
4. CONNECT CLUTCH LEAD WIRE TO WIRING
HARNESS
5. (2VZ±FE ENGINE MODEL)
PLACE CONDENSER FAN, RADIATOR FAN AND
IGNITOR BRAKET
6. INSTALL BATTERY AND CONNECT NEGATIVE CABLE
TO BATTERY
7. EVACUATE AIR FROM AIR CONDITIONING SYSTEM
8. CHARGE AIR CONDITIONING SYSTEM WITH
REFRIGERANT AND CHECK FOR GAS LEAKAGE
Specified amount: 600 ± 750 g (1.3 ± 1.7 lb)
± AIR CONDITIONING SYSTEMCompressorAC±31

CONDENSER FAN MOTOR
INSPECTION ON FAN MOTORS
1. CHECK OPERATION OF FAN MOTOR
HINT: The fan motor operates at two speeds depending
on the water temperature and the A/C switch.
3S±FE Engine Model
90°C (194°F) or above or
the refrigerant pressure is
approx. 15.5 kg/cm
2
(220 psi, 1,520 kPa) or
greater 90°C (194°F) or below
90°C (194°F) or above
90°C (194°F) or below Water Temperature
Fan Motor
Speed Magnetic
Clutch A/C
Switch
High
HighLowOff
± AIR CONDITIONING SYSTEMCondenser Fan MotorAC±34

96°C (205°F) or above or the
refrigerant pressure is approx.
15.5 kg/cm2 (220psi, 1,520 kPa)
or greater91 °C (196°F)
± 96°C (205°F)
(2VZ±FE Engine Model)
91 °C (196°F) or below
96°C (205°F) or above
91 °C (196°F) or below
Water TemperatureFan Motor
Speed Magnetic
ClutchA/C
Switch
High
HighLow
Low
Off
± AIR CONDITIONING SYSTEMCondenser Fan MotorAC±35