1-S48
ZD25F, WSM
ENGINE
(B) Radiator
CAUTION
• When removing the radiator cap, wait at least ten minutes after the engine has stopped and cooled down.
Otherwise, hot water may gush out, scalding nearby people.
Radiator Water Leakage
1. Pour a specified amount of water into the radiator.
2. Set a radiator tester (1) (Code No. 07909-31551) and an adapter
(2) (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.
W10387530
Radiator Cap Air Leakage
1. Set a radiator tester (1) and adaptor (2) (BANZAI Code No. RCT-
2A-30S) on the radiator cap.
2. Apply the specified pressure (88 kPa, 0.9 kgf/cm
2
, 13 psi), and
measure the time for the pressure to fall to 59 kPa (0.6 kgf/cm
2
,
9 psi).
3. If the measurement is less than the factory specification, replace
the radiator cap.
W1054156
(C) Thermostat
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.
W10390350
Radiator water leakage
test pressure
Factory spec.
137 kPa
1.4 kgf/cm
2
20 psi
(1) Radiator Tester (2) Adaptor
Pressure falling time Factory spec.
More than 10 seconds
for pressure fall from
88 to 59 kPa
(from 0.9 to 0.6 kgf/cm
2
,
from 13 to 9 psi)
(1) Radiator Tester (2) Adaptor
Thermostat’s valve
opening temperature
Factory spec.
80.5 to 83.5 °C
176.9 to 182.3 °F
Temperature at which
thermostat completely
opens
Factory spec.
95 °C
203 °F
To Next Page
Loading...
Need help?
General
