NSX V6-3.0L DOHC (1991)
Thermostat: Testing and Inspection
Thermostat Testing
NOTE: Replace thermostat if it is open at room temperature.
1. Suspend the thermostat in a container of water as shown.
2. Heat the water, and check the temperature with a thermometer. Check the temperature at which the thermostat first opens and at full lift.
CAUTION: Do not let thermometer touch the bottom of the hot container.
3. Measure lift height of the thermostat when fully open.
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Lift height: above 10 mm (0.39 inch)
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Starts opening: 169 - 176°F (76 - 80°C)
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Fully open: 194°F (90°C)