Thermostat: Service and Repair

THERMOSTAT
REMOVAL/INSPECTION/INSTALLATION
1. Disconnect the negative battery cable.
2. Drain the engine coolant.
3. Remove the air cleaner.
4. Remove in the order shown in the figure.
5. Install in the reverse order of removal, referring to Installation Note.
6. Install the air cleaner.
7. Fill the radiator and radiator reservoir with the specified amount and type of engine coolant.
8. Connect the negative battery cable.
9. Start the engine and check for coolant leaks.






Thermostat Inspection
1. Visually check that the thermostat valve is airtight.
2. Place the thermostat and a thermometer in water
3. Heat the water gradually and check the following.
Initial-opening temperature: 83.5-89.5°C {188-193°F}
Full-open temperature: 100 °C {212 °F}
Full-open lift: 8.0 mm {0.31 in} min.






Installation Note
Thermostat
1. Install the thermostat into the cylinder head with the jiggle pin at the top.
2. Install a new gasket with the seal print side facing the cylinder head.