Acura Coupes and Sedans 1986-1993 Repair Guide

Compressor

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REMOVAL & INSTALLATION



1986-89 Integra

See Figures 1, 2, and 3



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Fig. Fig. 1: Disconnecting the refrigerant hoses from the compressor body-1986-89 Integra



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Fig. Fig. 2: Compressor mounting bolt locations-1986-89 Integra



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Fig. Fig. 3: A deflection of 0.28-0.36 in. (7-9mm) indicates proper belt tension when 22 lbs. (10 Kg) of force is applied to the center of the belt-1986-89 Integra

  1. If the compressor still works, run the air conditioner for a few minutes at idle speed. Stop the engine and disconnect the negative battery cable.
  2.  
  3. Remove the 2 bolts holding the intake air duct and remove the duct. Remove the splash shield from under the engine compartment.
  4.  
  5. Have the refrigerant discharged and recovered.
  6.  
  7. Disconnect the compressor clutch wire from the clutch and remove it from the holder. Disconnect and plug the refrigerant hoses from the compressor. Plug the compressor connections and remove the clamps and holders.
  8.  
  9. Loosen the compressor mounting bolts and the adjustment nut and bolt. Remove the belt, mounting bolts and the compressor.
  10.  

To install:
  1. Install the compressor. Torque the mounting bolts to 19 ft. lbs. (26 Nm). If the compressor is a new unit, pour 1 fluid oz. (30cc) of refrigerant oil in the suction port.
  2.  
  3. Adjust the belt tension. A deflection of 0.28-0.36 in. (7-9mm) indicates proper belt tension when 22 lbs. (10 Kg) of force is applied to the center of the belt. Torque the pulley nut to 33 ft. lbs. (45 Nm).
  4.  
  5. Connect the refrigerant lines and torque the bolts to 22 ft. lbs. (30 Nm). Install the holders and clamps. Connect the wire to the compressor clutch and install in the holder.
  6.  
  7. Install the splash shield and intake duct. Have the system recharged. Connect the negative battery cable.
  8.  

1990-93 Integra

See Figures 4, 5, 6 and 7



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Fig. Fig. 4: Removing the power steering pump-1990-93 Integra



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Fig. Fig. 5: Disconnect and plug the lines and openings-1990-93 Integra



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Fig. Fig. 6: Condensor fan removal-1990-93 Integra



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Fig. Fig. 7: Belt adjusting bolt location-1990-93 Integra

  1. If the compressor still works, run the air conditioner for a few minutes at idle speed. Stop the engine and disconnect the negative battery cable.
  2.  
  3. Have the refrigerant discharged and recovered.
  4.  
  5. Loosen the power steering adjustment bolt and remove the mounting bolts. Remove the belt and the pump. Place the pump to the side without disconnecting the lines.
  6.  
  7. Disconnect and plug the refrigerant hoses from the compressor. Plug the compressor connections and remove the clamps and holders.
  8.  
  9. Disconnect the compressor clutch wire from the clutch and remove the condenser fan with shroud.
  10.  
  11. Loosen the idler pulley belt adjustment bolt and remove the belt.
  12.  
  13. Remove the compressor mounting bolts and allow the compressor to rest on the subframe. Remove the mounting bolts for the compressor bracket. Remove the bracket and the compressor.
  14.  

To install:
  1. If the compressor is new, drain the oil out of the old compressor and measure the amount. Subtract this amount from 2.66 fluid oz. (80cc). This number is the amount of oil to be drained from the suction port of the new compressor.
  2.  
  3. Install the compressor and the bracket. Torque the mounting bracket bolts to 35 ft. lbs. (48 Nm) and the compressor mounting bolts to 18 ft. lbs. (25 Nm).
  4.  
  5. Install the belt. Adjust the belt tension. A deflection of 0.28-0.36 in. (7-9mm) indicates proper belt tension when 22 lbs. (10 Kg) of force is applied to the center of the belt. Torque the adjustment nut to 5 ft. lbs. (7 Nm).
  6.  
  7. Install the condenser fan with shroud. Torque the mounting nuts to 7 ft. lbs. (10 Nm).
  8.  
  9. Connect the refrigerant lines and torque the bolts to 22 ft. lbs. (30 Nm).
  10.  
  11. Install the power steering pump. Torque the pump mounting bolts to 17 ft. lbs. (24 Nm). Adjust the belt tension. A deflection of 0.37-0.45 in. (9.5-11.5mm) indicates proper belt tension when 22 lbs. (10 Kg) of force is applied to the center of the belt.
  12.  
  13. Recharge the air conditioning system.
  14.  

1986-90 Legend

See Figures 8, 9, and 10



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Fig. Fig. 8: Disconnect and plug the lines and openings-1986-90 Legend



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Fig. Fig. 9: Compressor belt adjustment-1986-90 Legend



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Fig. Fig. 10: Compressor mounting bracket bolts-1986-90 Legend

  1. If the compressor still works, run the engine at idle speed and turn the A/C on for a few minutes.
  2.  
  3. Raise and support the vehicle safely and remove the front grille, spoiler, bumper and right wheel. Remove the front under cover from the bottom of the engine compartment.
  4.  
  5. Remove the right radius rod from underneath the vehicle.
  6.  
  7. Discharge and recover the refrigerant. Disconnect the compressor clutch wire and remove the connector from the holder.
  8.  
  9. Disconnect the suction and discharge hose from the compressor. Be sure to cap the open fittings immediately to keep dirt and moisture out of the system.
  10.  
  11. Loosen the compressor belt adjusting locknut, loosen the adjusting bolt and remove the compressor belt.
  12.  
  13. Remove the compressor mounting bolts and rest the compressor on the front beam.
  14.  
  15. Remove the compressor mounting bracket. Remove the bracket and compressor from the vehicle.
  16.  

To install:
  1. If a new compressor was installed, be sure to drain 1 fluid oz. of refrigerant oil through the suction fitting on the compressor. Install the bracket and compressor. Torque the bracket bolts to 33 ft. lbs. (45 Nm). Torque the compressor bolts to 16 ft. lbs. (22 Nm).
  2.  
  3. Install and adjust the belt. A deflection of 0.28-0.36 in. (7-9mm) indicates proper belt tension when 22 lbs. (10 Kg) of force is applied to the center of the belt. Torque the compressor belt adjusting nut to 33 ft. lbs. (45 Nm).
  4.  
  5. Connect the refrigerant lines and torque the bolts to 22 ft. lbs. (30 Nm). Connect the clutch wiring plug.
  6.  
  7. Install the radius rod and torque the mounting bolts to 61 ft. lbs. (85 Nm) and the nut to 32 ft. lbs. (44 Nm).
  8.  
  9. Install the under cover, wheel, bumper, spoiler and grill. Have the system recharged.
  10.  

1991-93 Legend

See Figures 11, 12, 13 and 14



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Fig. Fig. 11: Disconnect and plug the lines and openings-1991-93 Legend



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Fig. Fig. 12: Compressor belt removal-1991-93 Legend



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Fig. Fig. 13: Idler pulley mounting bracket bolts-1991-93 Legend



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Fig. Fig. 14: A deflection of 0.32-0.40 in. (8-10mm) indicates proper belt tension when 22 lbs. (10 Kg) of force is applied to the center of the belt-1991-93 Legend

  1. If the compressor still works, run the engine at idle speed and turn the A/C on for a few minutes.
  2.  
  3. Discharge and recover the refrigerant. Disconnect the compressor clutch wire and remove the connector from the holder.
  4.  
  5. Disconnect the suction and discharge hose from the compressor. Be sure to cap the open fittings immediately to keep dirt and moisture out of the system.
  6.  
  7. Loosen the compressor belt adjusting locknut, loosen the adjusting bolt and remove the compressor belt. Remove the splash shield from under the vehicle.
  8.  
  9. Remove the compressor mounting bolts and remove the compressor. Check the idler pulley and remove and replace, if necessary.
  10.  

To install:
  1. If the compressor is new, drain the oil out of the old compressor and measure the amount. Subtract this amount from 3.0 fluid oz. (100cc). This number is the amount of oil to be drained from the suction port of the new compressor.
  2.  
  3. Install the compressor. Torque the mounting bolts to 36 ft. lbs. (50 Nm).
  4.  
  5. Install the belt. Adjust the belt tension. A deflection of 0.32-0.40 in. (8-10mm) indicates proper belt tension when 22 lbs. (10 Kg) of force is applied to the center of the belt. Torque the adjustment nut to 33 ft. lbs. (45 Nm).
  6.  
  7. Connect the refrigerant lines and torque the bolts to 21 ft. lbs. (29 Nm). Connect the clutch wiring and install the splash shield. Recharge the system.
  8.  

Vigor

See Figure 15



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Fig. Fig. 15: Compressor bracket mounting including the idler pulley-Vigor

  1. If the compressor still works, run the engine at idle speed and turn the A/C on for a few minutes.
  2.  
  3. Discharge and recover the refrigerant. Disconnect the compressor clutch wire and remove the connector from the holder.
  4.  
  5. Disconnect the suction and discharge hose from the compressor. Be sure to cap the open fittings immediately to keep dirt and moisture out of the system.
  6.  
  7. Loosen the power steering belt adjusting locknut, loosen the adjusting bolt and remove the power steering belt. Loosen the compressor belt adjusting locknut, loosen the adjusting bolt and remove the compressor belt.
  8.  
  9. Remove the compressor mounting bolts and remove the compressor. Check the idler pulley and remove and replace, if necessary.
  10.  

To install:
  1. If the compressor is new, drain the oil out of the old compressor and measure the amount. Subtract this amount from 4.66 fluid oz. (140cc). This number is the amount of oil to be drained from the suction port of the new compressor.
  2.  
  3. Install the compressor. Torque the mounting bolts to 18 ft. lbs. (25 Nm).
  4.  
  5. Install the belts. Adjust the belt tension. A deflection of 0.24-0.35 in. (6-9mm) indicates proper belt tension when 22 lbs. (10 Kg) of force is applied to the center of the belt. Torque the adjustment nut to 33 ft. lbs. (45 Nm).
  6.  
  7. Connect the refrigerant lines and torque the bolts to 18 ft. lbs. (25 Nm). Connect the clutch wiring. Recharge the system.
  8.  

 
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