Service manual
\
COOLANT
CIRCULATING
PUMP
DISASSEMBLY
1. Remove the
PUlllP
pulley boss by using a support and
press.
2. Remove the bearing shaft from the impeller and bearing
housing by using a support block and press.
3. Remove the snap ring with snap ring pliers and press out
the water pump shaft
from the bearings.
INSPECTION
Inspect the shaft, bearings and impeller. Look for cracks and
damage. Check the housing gasket and inspect the rear seals
an,d
small end gaskets.
Replace any parts that show wear.
ASSEMBLY
Assemble the water pump
in
the reverse order
of
disassembly, using the following procedure:
1. Fill lithium grease (lithium base NLGI
No.2)
into the
following positions.
• Ball bearings
• Approximately
1/3
space between both ball bearings
• Space between the ball bearing and water baffle plate.
2. Apply a
thin coat
of
engine oil to the press fit surface
of
the water seal and press the larger end into the
proper aperture
of
the pump using a tubular
mandrel.
(49 0636 145)
'\
APPLYATHINCOATOFOIL
,
TO
SPRING LOADED SEAL
NOTE:
Do
not
allow
oil
or
grease to contaminate the
suifaces
of
the ceramic ring
or
the graphite (small end)
of
the
spring-loaded seal.
3. After the water
pump
has
been assembled, check
if
the
pump shaft
rotates smoothly. '
(COOLANT
PUMP
'-.~·------\WATER
PUMP
BODY
Engines
.~(3enerators
I
37
I