1986 TOYOTA CAMRY V20 engine

8. CHECK CONDENSER FAN MOTOR ROTATES
9. CHECK AMOUNT OF REFRIGERANT
If you can see bubbles in the sight glass, additional refrig-
erant is needed.
(See page AC±22)
10. IF NO COOLING OR IT IS INSUFFICIENT, INSPECT
FOR LEAKAGE
Using a gas leak tester, inspect each component of the re-
frigeration system.
REFRIGERATION SYSTEM
Checking of Refrigerant Volume
1. RUN ENGINE AT APPROX. 1,500 RPM
2. OPERATE AIR CONDITIONER AT MAXIMUM
COOLING FOR A FEW MINUTES
3. CHECK AMOUNT OF REFRIGERANT
Observe the sight glass on the receiver.
Immediately after the air conditioner is
turned off, refrigerant in sight glass stays
clear
When the air conditioner is turned off,
refrigerant foams and then stays clearEvacuate and charge system.
Then check for leak with gas leak
detector
Temperature between compressor inlet
and outlet is noticeably different
Discharge the excess refrigerant to
specified amount No temperature difference between
compressor inlet and outletCheck for leak with gas leak
tester
No bubbles present in sight glassBubbles present in sight glass
Empty, proper or too much Empty, proper or too muchAmount of refrigerant
Empty or nearly empty
Refer to items 5 and 6
Refer to items 3 and 4Refer to items 3 and 4
Proper or too muchInsufficient Symptom
Too muchRemedy. Item
± AIR CONDITIONING SYSTEMRefrigeration SystemAC±22

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

REMOVAL OF COMPRESSOR
3S±FE Engine Model
± AIR CONDITIONING SYSTEMCompressorAC±25

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

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