AMC Coupes/Sedans/Wagons 1975-1988 Repair Information

Air Conditioning Compressor

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REMOVAL & INSTALLATION 4-121 Engine



  1. Isolate the compressor. Refer to General Information and Maintenance for this procedure.
  2.  
  3. Remove both service valves and cap the valves and compressor ports immediately.
  4.  
  5. Loosen the power steering pump and remove the drive belt.
  6.  
  7. Remove the power steering pump and brackets and lay the pump aside, without disconnecting the hoses.
  8.  
  9. Loosen the idler pulley eccentric and remove the compressor drive pulley.
  10.  
  11. Disconnect the clutch wire.
  12.  
  13. Unbolt and remove the compressor.
  14.  
  15. Install the compressor.
  16.  
  17. Disconnect the clutch wire.
  18.  
  19. Install the compressor drive pulley and adjust the belt tension.
  20.  
  21. Install the power steering pump and brackets.
  22.  
  23. Install and adjust the power steering drive belt.
  24.  
  25. Install both service valves and remove the caps.
  26.  
  27. Purge the compressor of air and open the service valves. Refer to General Information and Maintenance for this procedure.
  28.  

4-151 Engine

  1. Isolate the compressor. Refer to General Information and Maintenance for this procedure.
  2.  
  3. Remove both service valves and cap the valves and compressor ports immediately.
  4.  
  5. Loosen and remove the drive belt.
  6.  
  7. Disconnect the clutch wire.
  8.  
  9. Unbolt and remove the compressor.
  10.  
  11. Install the compressor.
  12.  
  13. Connect the clutch wire.
  14.  
  15. Install and adjust the drive belt.
  16.  
  17. Install both service valves and remove the caps.
  18.  
  19. Purge the compressor of air and open the service valves. Refer to General Information and Maintenance for this procedure.
  20.  

1975-80 6-Cylinder Engines and 1981 (Non-California) 6-Cylinder Engines See Figures 1, 2 and 3

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Fig. Fig. 1: Compressor mounting bracket components on the 6-258 engine1977-80 and 1981 models, except California



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Fig. Fig. 2: Compressor mounting bracket and retainers6-1981 California and all 1982-87 6-258 engines



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Fig. Fig. 3: Exploded view of the compressor mounting and retainersV8 engines

  1. Isolate the compressor. Refer to General Information and Maintenance for this procedure.
  2.  
  3. Remove both service valves and cap the valves and compressor ports immediately.
  4.  
  5. Remove the alternator belt and adjusting bolt.
  6.  
  7. Remove the upper alternator mounting bolt and loosen the lower mounting bolt.
  8.  
  9. Remove the idler pulley.
  10.  
  11. Disconnect the compressor clutch wire. Remove the compressor mounting nuts and lift out the compressor. BE CAREFUL; IT'S HEAVY!
  12.  
  13. For installation, install the compressor, alternator and belt, idler pulley, and adjust the drive belts.
  14.  
  15. Install the service valves and purge the compressor of air. Open the valves.
  16.  
  17. Connect the clutch wire.
  18.  

1981 California Models, 1982-87 4-150 and 6-258 Models

  1. Isolate the compressor. Refer to General Information and Maintenance for this procedure.
  2.  
  3. Disconnect the battery ground.
  4.  
  5. Remove the discharge and suction hoses from the compressor and cap all openings immediately.
  6.  
  7. Loosen the alternator and remove the drive belts.
  8.  
  9. Remove the alternator from its brackets and set it out of the way.
  10.  
  11. Unbolt and remove the compressor.
  12.  
  13. For installation, install the compressor and alternator, connect the hoses and install and tension the drive belts. Connect the compressor clutch wire. Open the valves.
  14.  

8-304, 360 and 401 Engines

  1. Isolate the compressor. Refer to General Information and Maintenance for this procedure.
  2.  
  3. Remove both service valves and cap the valves and compressor ports immediately.
  4.  
  5. Loosen the alternator and remove the drive belts.
  6.  
  7. Remove the alternator mounting bracket.
  8.  
  9. Remove the compressor clutch wire.
  10.  
  11. Remove the compressor and mounting bracket as an assembly.
  12.  
  13. For installation, install the compressor and mounting bracket, install the alternator bracket, connect the clutch wire, install the belts, idler pulley, and adjust the drive belts.
  14.  
  15. Install the service valves and purge the compressor of air. Open the valves.
  16.  

 
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