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CUSTOM AIR CONDITIONING
1 B-1
SECTION
CUSTOM AIR CONDITIONING
CAU ITON: W e n perEorming air conditioning diagnosis on Pontiac vehicles egubped with a catalytic converter, it
w i l l
be necessary to W A R M the engine to a NORMAL operating temperature BEFORE attempting to idle the engine
for periods greater than five (5) minutes
.
Once the choke is open and fast idle speed reduced to a normal idle. diagnosis and
adjustments can be made
.
NOTE: References to C60 in this Section 1B of the Service Manual indicate Manually Operated Custom Air
Conditioning
.
C65 indicates Automatic Temperature Control of the same cycling clutch (C.C.O.T.) refrigerant control
system
.
See Section 1C for additional C65 information
.
CONTENTS OF THIS SECTION
General Description
................................................
1 B-2
Illustrated A/C Controls. Wiring
&
Vacuum Diagrams. Air
&
Refrigerant
Flows. Refrigerant- 12 Data
..............................
1 B-2
C.C.O.T. Refrigerant Oil Distribution
...............
1B-3
Precautions in Handling Refrigerant-12
............
1 B-3
Precautions in Handling
Refrigerant Lines
&
Fittings
............................
1B-15
Maintaining Chemical Stability in
the Refrigeration System
..................................
1 B- 16
Refrigerant Charging Precautions
......................
18-1 6
With 14 oz
.
Disposable Can Charging
..........
1B-16
With J 23500-01 Charging Station
.................
1B-16
Diagnosis
.................................................................
1 B- 1 7
Leak Testing the System
....................................
1B-17
Liquid Leak Detectors
....................................
1
B- 17
Electronic Leak Detector J 23400
.................
18-1 7
Testing
......................................................
1 B-17
Preliminary Checks
.....................................
1 B- 1 7
Trouble Diagnosis
...............................................
1 B-22
Operational Test
..............................................
1 B-22
Insufficient Heating
.....................................
1 B-22
A/C Refrigerant System Diagnosis
...................
1 B-22
Insufficent Cooling "Quick-Check" Procedure1 B-22
See Figures 1B.20A. 20B. 20C
.......................
1 B-19
Thermostatic Switch Diagnosis
......................
1 B-23
B Series A/C Diagnostic Connector
..................
1B-23
B Series C60 & C65 Air
Conditioning Electrical Diagnosis
................
1 B-23
On-Car Service Procedures
....................................
1 B-26
Precautionary Service Measures
.........................
1
B-26
Discharging. Adding Oil. Evacuating and
Charging Procedures for C.C.O.T.
A/C Systems
.....................................................
1 B-27
Discharging the C.C.O.T. A/C System
.........
1 B-27
Evacuating. Adding Refrigerant Oil
and Charging the C.C.O.T. A/C System
....
1 B-27
J 23500-01 Charging Station Method
........
1B-27
Adding Oil to the C.C.O.T. A/C System lB-27
Disposable Can or Refrigerant
Drum Method
...........................................
1B-29
Adding Oil to the C.C.O.T. A/C System 1B-29
To Begin Evacuation of the
C.C.O.T. A/C System
...............................
1B-29
To Begin Charging of the
C.C.O.T. A/C System
...............................
1B-29
Accumulator Assembly
......................................
1 B-30
Compressor Overhaul
.........................................
1 B-3 1
Minor Repair Procedures for
the A-6 Compressor
.........................................
1 B-3 1
A-6 Compressor Clutch Plate
and Hub Assembly
........................................
1 B-31
A-6 Compressor Pulley and Bearing Assy
....
1B-35
A-6 Compressor Pulley Bearing
.....................
1B-36
A-6 Compressor Clutch Coil
and Housing Assembly
..............................
1B-37
Major A-6 Compressor Repair Procedures
.......
1B-38
............................
A-6 Compressor Shaft Seal
1 B-38
....................................
Seal
Leak
Detection
1 B-39
..........
A-6 Compressor Pressure Relief Valve
1 B-40
............
A-6 Compressor Internal Mechanism
1 B-4 1
........................................................
Remove
1
B-41
.................................................
Disassembly
1 B-43
........................................
Gaging Operation
1 B-44
........
A-6 Teflon Piston Ring Replacement
1 B-48
.....................................................
Assembly
1 B-49
.....................................................
Re-Install
1 B-5 1
Minor Repair Procedures for the
....................................................
R-4 Compressor
1 B-54
R-4 Compressor Clutch Plate and Hub Assy
...
1 B-55
R-4 Compressor Clutch Rotor and/or Bearing 1 B-55
Replace Rotor and Bearing
Assembly (On Car)
...................................
1 B-57
Replace Rotor and Bearing
.............................
Assembly (On Bench)
1 B-58
R-4 Compressor Clutch Coil
and/or Pulley Rim
.........................
. .
...............
1B-59
Major R-4 Compressor Repair Procedures
...........
1 B-6 1
R-4 Compressor Shaft Seal
................................
1 B-6 1
Seal Leak Detection
....................................
1B-61
R-4 Compressor Shaft Seal
Replacement (On Car)
..............................
1
B-62
R-4 Compressor Shaft Seal
Replacement (Off Car)
..............................
1 B-63
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