Testing - Acura 3.5 RL Manual

Testing

Replace the thermostat if it is open at room temperature.
To test a closed thermostat:
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 which it is fully open.
CAUTION: Do not let the thermometer touch the
bottom of the hot container.
3. Measure lift height of the thermostat when it is fully
open.
STANDARD THERMOSTAT
Lift height: above 10.0 mm (0.39 in)
Starts opening: 169° - 176°F (76°- 80°C)
Fully open: 194°F (90°C)
THERMOMETER
THERMOSTAT