Cleaning and Inspection
Reassembly
!
CAUTION
SEAWATER/FUEL PUMP HOUSING
Always wear safety glasses when using com-
pressed air.
IMPORTANT: Seals in water pump end of housing
must be facing in the proper direction. The lip on
inner (oil) seal must be facing inward toward oil
pump. The lip on outer (water) seal must be fac-
ing outward toward the water pump.
1.
Clean metal parts in solvent and blow dry with
compressed air.
IMPORTANT: Do not spin bearings at high speed
when drying with compressed air, as bearings
may be scored.
2.
3.
4.
After cleaning, apply a coat of light engine oil to
shaft and bearings to prevent rust.
Clean all gasket material and sealer from sealing
surfaces.
a
b
Inspect bearing housing. Examine surfaces
(where bearings contact housing) for evidence of
bearing outer races turning in housing.
5.
6.
7.
Inspect seals in bearing housing.
Inspect pump shaft bearings.
Inspect pump shaft for grooves in surface where
seals contact shaft. Inspect keyway in shaft.
Also, inspect surface, where bearings contact
shaft, for evidence of inner races turning on shaft.
71143
a - Inner Oil Seal - Lip Inward Toward Oil Pump
b - Outer Water Seal - Lip Outward Toward Water Pump
8.
Inspect impeller drive key.
Inspect pump body.
9.
1.
Apply a light coat of Loctite 514 to O.D. of seal
and install inner (oil) seal using a suitable man-
drel. Seal is properly positioned when edge of
seal is even with edge of bore.
10.
Inspect inner and outer wear plate.
a
71144
a - Inner Oil Seal
Index
90-823324--2 796
SEAWATER COOLED SYSTEMS - 6A-17
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
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