FLANGE
PUMP!oDY
SIDESEAL
SHAFT
IMPELLER
PIN
FIGURE
25.
PUMP
M32-0059
WATER
PUMP
#132-0059
Water pump #132-0059
is
a
neoprene impeller type
pump (Figure
25).
Disassembly
1.
Disconnect the
hoses
and remove the cap screws
holding the pump
to
the engine.
Lift
pump from
engine.
2.
Remove
the
end cover screws, end cover and
gasket.
3.
Pull the impeller and shaft assembly from
the
pump body.
4.
Remove
the
impeller pin and
slide
the impeller
off
the
shaft.
5.
Loosen
the
cam
set
screw on theside
of
the pump
and tap
it
lightly
to
free the cam from the pump
body. Lift out cam and wear plate.
6.
Working from the mounting flange
end,
use
a
small drift punch
to
drive the
seals
out toward the
impeller. Remove
the
seal
next
to
the
impeller
bore
first.
Be
careful
not
to
damage the bore
area
around the seal.
Assembly
Inspect the pump housing for wear, rough
surfaces,
or pitting and replace
if
any
of
these conditions
exist.
Replaceany otherworn components such
asseals
or
impeller.
Use
a
new end cover gasket when reas-
sem bling.
1.
Install the impeller
side
seal
with theseal lip
fac-
ing away from the impeller bore. Lubricate the
seal
lip with grease.
2.
Install
the
flange
side
seal
with
the
seal
lip facing
away from the mounting flange. Lubricate the
seal
lip with grease.
3.
Place
the
wear plate in the bottom
of
the
impeller
bore with
the
raised portion
of
the dimple facing
UP.
4.
Coat
the top
of
the cam and cam
set
screw
threads with sealer. Line up
the
dimple in
the
wear
plate with
the
hole in the cam and then tighten
the
set screw.
5.
Slide
the impeller over the shaft and secure with
the impeller pin. Lubricate the shaft with grease.
Check shaft
to
make sure
it
is
free
of
burrs.
6.
Lubricate the impeller bore with grease and then
install
the
shaft and impeller assembly.
Use
a
twisting motion when fitting the impeller into the
impel
ier
bore.
7.
Hold the new end cover gasket against the pump
housing and install theend cover, securing
it
with
three screws.
8.
Mount the assembled pump on the engine and
attach the hoses.
31
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