A/C Evaporator Core Orifice Replacement Kit

A/C Evaporator Core Orifice Replacement Kit Installation
1. Discharge the A/C refrigerant system. Refer to System Discharging and Recovery.
2. Remove the condenser to evaporator tube from vehicle.




3. Locate the A/C evaporator core orifice by the three indentations or a circular recess in the metal portion of the condenser to evaporator tube.
4. Note angular position of ends of condenser to evaporator tube so that it can be reassembled in correct position.
5. Cut a 63.5 mm (2.5 inch) section from condenser to evaporator tube at A/C evaporative core orifice location. Do not cut closer than 25.4 mm (1 inch) from the start of a bend in tube.




6. Remove contaminants from the two pieces of the condenser to evaporator tube.




7. Lubricate fitting with clean refrigerant oil and assemble orifice tube kit (with A/C evaporator core orifice installed) to condenser to evaporator tube. Make sure flow direction arrow is pointing toward the evaporator end of the condenser to evaporator tube, and taper of each compression ring is toward compression nut.

NOTE: The inlet half of the condenser to evaporator tube will be positioned against the A/C evaporator core orifice tabs when correctly assembled.

8. While holding hex of tube in a vise, tighten each compression nut to 88-95 N.m (65-69 lb-ft) with a crow-foot wrench.




9. Assemble condenser to evaporator tube to vehicle using new green O-ring seals lubricated with clean refrigerant oil. Use only specified green O-ring seals at spring lock coupling.
10. Leak-test, evacuate and charge system.
11. Check system for proper operation.