Section 14 (Cooling System (H4SO)): Thermostat: Inspection
WARNING: This page is about a different variant/trim than selected.
Replace the thermostat if the valve does not close completely at an ambient temperature or if the following test shows unsatisfactory results.
- Inspection Method
Immerse the thermostat and a thermometer in water. Raise water temperature gradually, and measure the temperature and valve lift when the valve begins to open and when the valve is fully opened. During the test, agitate the water for even temperature distribution. If the measured temperature is within the specified range, the condition of thermostat is normal.
NOTE:
- When measuring amount of valve lift, leave the valve for 5 minutes or more in boiled water.
- Hold the thermostat wire so as not to contact the base of container.
Specified value:
Starts to open:
76.0 - 80.0°C (169 - 176°F)
Fully opens:
91°C (196°F)