Cleaning and Inspection
Installation
1.
2.
3.
Wash all parts in cleaning solvent and dry with
compressed air.
1. Install pump, with extension shaft, to rear main
bearing, aligning extension shaft with distributor
drive shaft.
Inspect pump body and cover for cracks or ex-
cessive wear.
2. Install baffle. Tighten baffle nuts to 25 lb. ft. (34
N·m). Tighten oil pump bolt to 70 lb. ft. (95 N·m).
Inspect pump gears for damage and excessive
wear.
4.
5.
Check for loose drive gear shaft in pump body.
a
Inspect inside of pump cover for wear that would
permit oil to leak past ends of gears.
6.
7.
Inspect pickup screen and pipe assembly for
damage to screen and pipe.
Check pressure regulator valve for fit.
IMPORTANT: Oil pump is not serviceable. If any
parts are worn or damaged, replacement of entire
pump assembly and pickup tube is necessary.
c
Reassembly
b
IMPORTANT: Oil internal parts liberally before in-
stallation.
72545
a - Nuts (5)
b - Baffle
c - Oil Pump
1.
2.
3.
Install pressure regulator valve and related parts.
Install drive gear in pump body.
Install idler gear in pump body with smooth side
of gear toward pump cover opening. Align marks
made in disassembly.
3.
Install oil pan as outlined. The one-piece gasket
for the oil pan may be reused if still pliable and not
cracked, torn, etc.
4.
5.
Fill gear cavity with engine oil.
Install pump cover and torque attaching screws
to 80 lb. in. (9 N·m).
Torsional Damper
6.
Turn extension shaft by hand to check for smooth
operation.
Removal
1.
2.
Remove drive belts.
Remove drive pulley and water pump pulley, then
remove torsional damper retaining bolt.
Index
90-823224--2
796
454 CID (7.4L) / 502 CID (8.2L) - 3A-39
| 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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