wsm L503 Workshop Manual page 150

L3130 · L3430 · L3830 · L4630 · L5030, WSM
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. 6 mm (0.236 in.).
4. If the measurement is not within the factory specifications,
replace the thermostat.
Thermostat's valve
Factory spec.
opening temperature
Temperature at which
thermostat completely Factory spec.
opens
Radiator Cap Air Leakage
CAUTION
• When removing the radiator cap, wait at least ten minutes
after the engine has stopped and cooled down. Otherwise,
hot water way gush out, scalding nearby people.
1. Set a radiator tester (Code No.: 07909-31551) on the radiator
cap.
2. Apply the specified pressure (88 kPa, 0.9 kgf/cm
measure the time for the pressure to fall to 59 kPa (0.6 kgf/cm
9 psi).
3. If the measurement is less than the factory specification, replace
the radiator cap.
Pressure falling time Factory spec.
Radiator Water Leakage
1. Pour a specified amount of water into the radiator.
2. Set a radiator tester (Code No. 07909-31551) with an adapter
(BANZAI Code No.RCT-2A-30S) and raise the water pressure to
the specified pressure.
3. Check the radiator for water leaks.
4. For water leak from the pinhole, repair with the radiator cement.
When water leak is excessive, replace the radiator.
Radiator water leakage
Factory spec.
test pressure
1-S63
ENGINE
69.5 to 72.5 °C
157.1 to 162.5 °F
85 °C
185 °F
W1035849
2
, 13 psi), and
2
,
More than 10 seconds for
pressure fall from
88 to 59 kPa
2
(from 0.9 to 0.6 kgf/cm ,
from 13 to 9 psi)
W1036090
137 kPa
2
1.4 kgf/cm
20 psi
W10389070
KiSC issued 02, 2007 A