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Maintenance
29) Inspection of Propeller
1.
Check the propeller blades and splines for cracks,
damage, wear, and corrosion. Replace if necessary.
30) Inspection of Thermostat
1.
Remove the thermostat cover 1 and gasket 2 , then
remove the thermostat 3 .
2.
Hang the thermostat in a vessel containing water.
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 known when thermostat is released to drop
due to opening with rise of temperature.
Valve Opening Temperature:
4.
Measure valve lift of thermostat when prescribed
temperature has been reached. Replace if it is less than
the specified value.
Water Temperature
5.
Install the thermostat, new gasket, and thermostat cover.
Thermostat Cover Bolt :
9 N·m (6.6 lb·ft) [0.9 kgf·m]
3-34
Valve Lift a
)
3.0 mm (0.118 in) or more
a
4st 25/30 2022
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