Supra Liftback L6-2997cc 3.0L DOHC MFI Twin-Turbo (1997)
Thermostat: Testing and Inspection
NOTE: The thermostat is numbered with the valve opening temperature.
1. Immerse the thermostat in water and gradually heat the water.
2. Check the valve opening temperature.
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Valve opening temperature: 80-84°C (176-183°F).
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If the valve opening temperature is not as specified, replace the thermostat.
3. Check the valve lift.
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Valve lift: 8.5 mm (0.335 inch) or more at 95°C (203°F).
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If the valve lift is not as specified, replace the thermostat.
4. Check that the valve is fully closed when the thermostat is at low temperatures.
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Closed below: 40°C (104°F).
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If not closed, replace the thermostat.
