Heater Core: Service and Repair
HEATER UNIT AND HEATER CORE
REMOVAL AND INSTALLATION
REMOVAL SERVICE POINT
<> SUCTION PIPE OR HOSE, DISCHARGE PIPE DISCONNECTION
CAUTION: Seal the hose completely, otherwise the compressor oil and receiver will absorb water vapor easily, possibly damaging the compressor and deteriorating performance.
Plug the disconnected hose and the evaporator nipple to prevent foreign material from getting into them.
INSTALLATION SERVICE POINT
>>A<< HEATER CORE INSTALLATION
After replacing the heater core, check that the water shut valve is at "OPEN" position when refilling engine coolant.
>>B<< EVAPORATOR INSTALLATION
When replacing the evaporator, refill with a specified amount of compressor oil and install it (to the vehicle).
Compressor oil: SUN PAG56
Quantity: 70 cu. cm. (2.4 floz)