Radiator Cap Test; System Pressure Test; Mechanical Seal Inspection - Honda Motorcycle Service Manual

COOLING SYSTEM
RADIATOR CAP TEST
Test the radiator cap using the cooling system tester.
Replace the cap if the relief pressure is too high or too low, or if
the cap does not hold the specified pressure for at least 6
seconds.
NOTE
.
Before installing the cap on the tester, wet the sealing
surfaces with clean water.
RADIATOR CAP
COOLING SYSTEM TESTER
SYSTEM PRESSURE TEST
I
CAUTION
Exeeding the radiator cap relief pressure can damage
Check that the system holds the specified pressure for at least
6 seconds.
If the system will not hold the specified pressure, check the
following and correct as necessary:
-
All hose and pipe connections
- Water pump installation
- Water pump seal (for leakage)
- Deformed radiator filler neck
Remove the thermostat (refer to the Model Specific manual).
Inspect the thermostat visually for damage.
Suspend the thermostat in heated water to check its
operation.
COOLING SYSTEM TESTER (COMMERCIALLY
AVAILABLE1
Do not let the thermostat or thermometer touch the Dan,
/
or you will get false readings.
.
Replace the thermostat if valve stays open at room
temperature, or if it responds at temperatures other than
those specified.
Check for the correct valve lift temperature with the
water heated to operating temperature for 5 minutes.
Refer to the Model Specific manual for the specific
temperature.
/ ,
i
Reinstall the thermostat
MECHANICAL SEAL INSPECTION
Inspect the telltale hole for signs of coolant leakage.
If there is leakage, the mechanical seal is defective and must
be replaced.
See the Model Specific manual for mechanical seal replace-
ment procedures.
If the mechanical seal is the built-in type, the water pump
must be replaced as an assembly.
WATER PUMP
Date of Issue : March, 1995
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HONDA MOTOR CO.,LTD.