Water Pump - Honda SH125 Manual

COOLING SYSTEM
Do not let the ther-
mostat or ther-
mometer touch the
pan, or you will get
a false reading.
INSPECTION
Visually inspect the thermostat f or damage and the
rubber seal for deterioration.
Replace the thermostat if the valve stays open at
room temperature.
Heat a container of water with an electric heating
element for 5 minutes.
Suspend the thermostat
in
heated water t o check its
operation.
THERMOSTAT BEGINS TO OPEN:
80
-
84
"C
(176
-
183 O F )
VALVE LIFT:
4.5 mm (0.18 in) minimum
at
95 "C (203 O F )
Replace the thermostat if the valve opens at a tem-
perature other than those specified.
WATER PUMP
MECHANICAL SEAL INSPECTION
Inspect the telltale hole for signs of coolant leakage.
If there is leakage, the water p u m p mechanical seal
is defective and the mechanical should be replaced.
MECHANICAL SEAL REPLACEMENT
Remove the stator/CKP sensor assembly (page 12-
9).
Remove the following:
-
three bolts
-
water p ump cover
-
O-ring
- two dowel pins
I
WATER PUMP