THERMOSTAT INSPECTION [ZY, Z6]
id0112a0801300
1. Remove the thermostat. (See THERMOSTAT REMOVAL/INSTALLATION [ZY, Z6].)
2. Visually check that the thermostat valve is closed.
3. Place the thermostat in water.
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Warning
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• During inspection, the thermostat and water are extremely hot and can cause severe burns. Do not touch the thermostat and water.
4. Heat the water and check the following.
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• Opening temperature and valve lift
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Thermostat initial-opening temperature
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80—84 °C {176—183 °F}
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Thermostat full-open temperature
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95 °C {203 °F}
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Thermostat full-open lift
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More than 8.5 mm {0.33 in}