Parts List - Westerbeke 11.5KW-60Hz Service Manual

i
\
(
RAW WATER PUMP (PN. 48080)
Disassembly
N~E:
Refer to the following page for parts list and exploded
vzew.
The pump, as removed from the engine, will have hose
attachment nipples threaded into its inlet and outlet ports.
They may be left in place or removed if they interfere with
the pump disassembly. Note the port location and positioning
if removed.
1. Remove the sil' coVer plate screws, cover plate, and the
cover plate 'gasket
2.
3.
4.
5.
6.
7.
8.
9.
NOTE:
Replacement of the cover plate gasket is recom-
mended; however,
if
you are going to reuse it, keep the
gasket submerged in water untl7 the pump is reassembled.
Ifit~
allowed to dry, the gasket will shrink and not be
reusable.
Rem?ve the impeller with its drive screw from the pump
housmg,
Remove the screw and sealing washer and remove the
cam from the pump housing.
Remove the wear plate and leave the pin in place.
Remove the front circlip, washer and water seal.
Remove the rear circlip
Support the pump housing at the mounting flange end.
Using an arbor press and with a suitable drift, carefully
press the shaft with bearings from the pump housing.
The slinger and oil seal will remain in the housing.
Remove the oil seal and slinger.
Support the bearings inner race and push the shaft out of
the bearings.
Inspection
Inspect all parts and replace those showing wear, cracks or
corrosion.
Reassembly
1. Support 'the bearings inner race. Press the shaft into the
bearings so that the drive end of the shaft extends beyond
the second bearings inner race by 19/32" (15mm)
1132" (.5mm)
NOTE:
The seals'flat suifaces that have printing and
numbers face toward each other.
2. Install the oil seal in the pump housing.
3. Support the pump.Lubricate the shaft and slide it
thru
the
oil seal and press the bearings with shaft into the housing
so
t?~t
the outer bearing just clears the rear circlip
retammg groove.
4. Install the rear circlip and press the sbaft with bearings so
that the outer bearing seats on the rear circlip.
5. Lubricate the slinger and slide it onto the shaft so that it
is visible midway through the slotted openings of the
pump housing.
6. Lubricate the inner half of the water seal, slide it over the
shaft and seat it in the pump housing. Install the outer
half, washer and front clip to hold the seal in place.
7. Install the wear plate and cam. Apply sealant (permatex
#1)
to the cam screw threads and inner cam surfaces.
Remove excess.
8. Lubricate and install the impeller. Blade positioning does
not matter.
NOTE:
Use the lubricanr that comes with the impeller.
Coat only the suiface. Do not over-apply.
9. Install the O-ring and cover plate.
Refer to #48080 parts list
on
next
P.!lg~,
"IIV'
WESTERBEKE
Engines & Generators
47