Thermostat Inspection


  1. INSPECT THERMOSTAT

Thermostat -- Inspection



1. INSPECT THERMOSTAT


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155
HINT:
The valve opening temperature is inscribed on the thermostat.

  1. Immerse the thermostat in water and then gradually heat the water.

  1. Check the valve opening temperature of the thermostat.

    Standard Valve opening temperature:
    80 to 84°C (176 to 183°F)
    If the valve opening temperature is not within the specified range, replace the thermostat.


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. Check the valve lift.

    Standard Valve lift:
    10 mm (0.394 in.) or more at 95°C (203°F)
    If the valve lift is not as specified, replace the thermostat.

  1. Check that the valve is fully closed when the thermostat is below 77°C (171°F)..
    If it is not fully closed, replace the thermostat.