Subaru Coupes/Sedans/Wagons 1985-1996 Repair Guide

Refrigerant Lines

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REMOVAL & INSTALLATION



See Figures 1, 2, 3 and 4

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Fig. Fig. 1: O-ring installation



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Fig. Fig. 2: Applying refrigerant oil to the O-ring



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Fig. Fig. 3: Proper refrigerant line installation



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Fig. Fig. 4: Tightening the refrigerant line connection

  1. Disconnect the negative battery cable.
  2.  
  3. Properly discharge the air conditioning system using an approved recovery/recycling machine.
  4.  
  5. Remove chassis, engine or body parts, if required for line removal.
  6.  
  7. If removing a line secured with a nut, use a suitable flare-end or backup wrench loosen, disconnect and immediately plug the refrigerant line.
  8.  
  9. If removing a line attached with a retainer bolt, loosen and remove the retainer bolt using a suitable wrench or socket. Immediately plug the open connection.
  10.  
  11. Remove and discard the sealing O-ring.
  12.  
  13. Disconnect the pressure switch wire connectors, if required.
  14.  
  15. Remove all attaching brackets and bolts.
  16.  
  17. Remove the refrigerant lines.
  18.  

To install:
  1. Apply a light coat of refrigerant oil to new O-rings, and install on the refrigerant line.
  2.  
  3. If the line is secured with a nut, tighten the nut to 14-22 ft. lbs. (20-29 Nm).
  4.  
  5. If the line is secured with a retainer bolt, tighten the bolt to 7-14 ft. lbs. (10-20 Nm.
  6.  

Tighten the refrigerant line to the previously given valves, unless the procedure requires a different tightening value.

  1. Route refrigerant lines in the original locations.
  2.  
  3. Use original securing brackets and bolts.
  4.  
  5. Evacuate, charge and check system for leaks using an approved recovery/recycling machine.
  6.  

 
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