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Home >> Acura >> 1992 >> Integra GS-R >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> General Servicing >> A/C Compressor Oil Checking >> Isolating Compressor
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Isolating Compressor

NOTE: Only compressors with stem-type service valves can be isolated.
  1. Connect service gauge set to the compressor service valves and open compressor valves slightly (clockwise). Start engine and operate air conditioning. Slowly turn compressor suction valve clockwise toward closed (front-seated) position.
  2. When suction pressure is reduced to zero or less, turn off engine and compressor, and quickly turn suction valve stem to full front-seated position. Suction pressure should be slightly greater than zero. Turn discharge valve to front-seated position.
  3. To check oil level, slowly open compressor crankcase plug to relieve any remaining pressure. After oil level is corrected, cap service gauge ports on both valves. Back-seat suction service valve to allow refrigerant to enter compressor. Open discharge valve halfway.
  4. Loosen discharge service valve cap, allowing refrigerant pressure to force air out of compressor. Back-seat service valve and tighten cap. Compressor is now ready for operation.
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