DR ALL-TERRAIN Service Manual Page 180

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4-18 COOLING SYSTEM
Thermostat
Thermostat Inspection
Remove the thermostat, and inspect the thermostat valve
[A] at room temperature.
If the valve is open, replace the valve with a new one.
To check valve opening temperature, suspend the ther-
mostat [A] and an accurate thermometer [B] in a container
of water with the heat-sensitive portions [C] in almost the
same depth.
NOTE
The thermostat must be completely submerged and the
thermostat and thermometer must not touch the con-
tainer sides or bottom.
Gradually raise the temperature of the water while stirring
the water gently for even temperature.
If the measurement is out of the specified range, replace
the thermostat.
Thermostat Valve Opening Temperature
69.5 72.5°C (157 162°F)
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