SW L4-1.9L DOHC VIN 7 (1993)
Thermostat: Testing and Inspection
Thermostat Inspection
NOTICE:
Use extreme care and do not damage or scratch the machined aluminum surfaces. Coolant leaks will result.
1. Check the valve opening temperature. Insert a small paper clip or tag wire between the main poppet valve seat and housing. Suspend the
thermostat from the paper clip in a pan of water and gradually heat the water. Check the water temperature immediately after the thermostat falls
off a tag wire or small paper clip. Replace the thermostat if it does not fall within specifications.
Starts to open temperature:
New: 84-88°C (182-190°F)
Used: 83-89°C (180-192°F)
