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18) Inspection of Propeller
1.
Check propeller blades and spline for cracks, damage,
wear and corrosion. Replace if necessary.
19) Inspection of Thermostat
1.
Loosen thermostat cover and thermostat cover bolts,
and remove thermostat 1.
Hang thermostat 1 and put it into the water container.
2.
3.
Put thermometer in the water, and warm up water to
measure valve opening temperature.
Put a piece of thread in the closed valve gap and
hang it in the water. Valve opening moment can
be determined when thermostat is released to
drop due to opening with rise of temperature.
Valve Opening Temperature :
50 - 54°C (121 - 129°F)
(Valve starts to open at this temperature.)
4.
Measure valve lift of thermostat when prescribed
temperature has been reached. Replace if the length
is less than specified value.
Water Temperature :
63 - 67°C (146 - 154°F)
Valve lift a :
3.0mm (0.12in) or over
5.
Install thermostat, new gasket and cover.
Thermostat Cover Bolt :
6 N · m (4 lb · ft) [0.6 kgf · m]
4st 4/5/6 2020
1
1
a
3
3-19
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