GZD15, WSM ENGINE
1-S52
[4] COOLING SYSTEM
(1) Checking and Adjusting
Fan Belt Tension
1. Measure the deflection (A), depressing the belt halfway
between the fan drive pulley and dynamo pulley at specified
force (98 N, 10 kgf, 22 lbs).
2. If the measurement is not within the factory specifications,
loosen the dynamo mounting screws and relocate the dynamo
to adjust.
Fan Belt Damage and Wear
1. Check the fan belt for damage.
2. If the fan belt is damaged, replace it.
3. Check if the fan belt is worn and sunk in the pulley groove.
4. If the fan belt is nearly worn out and deeply sunk in the pulley
groove, replace it.
Thermostat Valve Opening Temperature
1. Suspend the thermostat in the water by a string with its end
inserted between the valve and seat.
2. Heating the water gradually, read the temperature when the
valve opens and leaves the string.
3. Continue heating and read the temperature when the valve
opens approx. 8 mm (0.315 in.).
4. If the measurement is not within the factory specifications,
replace the thermostat.
Deflection (A) Factory spec.
Approx. 10 mm
0.4 in.
0000001679E
(A) Good (B) Bad
0000000920E
Thermostat's valve
opening temperature
Factory spec.
69.5 to 72.5
157.1 to 162.5
Temperature at which
thermostat completely
opens
Factory spec.
85
185
0000000921E
To Next Page
Loading...
Need help?
General
