11-19
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COOLING SYSTEM
THERMOSTAT INSPECTION
Remove the thermostat (page 11-5).
Immerse the thermostat [1] in water.
Heat the water and observe the operation of the
thermostat as the water temperature increases.
Measure the water temperature when the thermostat
starts opening.
Don't let the thermometer [2] or the thermostat touch
the container; this may cause a false reading.
Measure the lift height when the thermostat is fully
open.
START OPENING: 58 – 62°C (136 – 144°F)
FULLY OPEN: 70°C (158°F)
LIFT HEIGHT: More than 4.3 mm (0.17 in)
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