Honda NSS250A Reflex 2001-2007, Manual

Page: 273 / 718

COOLING SYSTEM
7-11
WATER PUMP
MECHANICAL SEAL INSPECTION
Check the bleed hole of the water pump for signs of
coolant leakage.
• A small amount of coolant weeping from the
bleed hole is normal.
• Make sure that there are no continuous coolant
leakage from the bleed hole while operating the
engine.
Replace the oil seal if necessary.
Replace the mechanical seal if necessary.
REMOVAL
Remove the right crankcase cover (page 13-4).
Remove the bolt, sealing washer, water pump
cover, O-ring, and dowel pins.
The impeller has
left-hand threads.
Hold the water pump shaft and remove the impeller
and washer.
Remove the water pump shaft and thrust washer.
INSPECTION
Remove the water pump shaft and washer from the
right crankcase cover.
Check that the water pump shaft is deformation or
damage, replace it if necessary.
BLEED HOLE
WATER PUMP COVER/O-RING
BOLT DOWEL PINS
BOLT/SEALING WASHER
IMPELLER
WASHER WATER PUMP SHAFT
THRUST WASHER
WATER PUMP SHAFT
THRUST WASHER WASHER IMPELLER
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