Oil Filter By-Pass Valve and
Adaptor
6. Wipe out valve chamber in cylinder block to re-
move any foreign material.
7.
8.
9.
Install by-pass valve (if replaced) and connector.
Torque adaptor nut to 20 lb. ft. (27 N·m).
!
CAUTION
Lubricate adaptor seal with engine oil. Install
hose fitting and torque to specifications.
Any Gen V or Gen VI engine with front mounted
vertical oil cooler MUST have a 30 PSI oil pres-
sure relief valve installed. Severe engine damage
or failure will occur if not installed.
Apply Perfect Seal to hose threads. Install and
tighten securely.
Inspection and/or Replacement
Oil by-pass valve and adaptor should be inspected
whenever engine is disassembled for major repair or
whenever inadequate oil filtration is suspected.
Refer to “Engine Parts List” when ordering parts for
oil filter by-pass valve, adaptor assembly or remote
oil filter parts.
1.
2.
3.
4.
Remove oil hoses from adaptor.
Remove hose fitting and seal from adaptor.
Remove connector.
Clean parts in solvent and blow dry with com-
pressed air.
5.
Inspect fiber valves for cracks or other damage.
Check that valves fit tightly against seats. Push
each valve down and release it. Valves should re-
turn freely to their seats. If valve operation is
questionable, by-pass valve should be replaced.
a
72546
Typical By-Pass Valve and Adaptor
a - Fiber Valves (Ensure That Valves Fit Tightly Against Their
Seals
Index
90-823224--2
796
454 CID (7.4L) / 502 CID (8.2L) - 3A-63
| 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.
Thank you