7.
Follow procedures in Section 6A or 6B of this
manual:
Cleaning
1.
2.
3.
Clean push rods and rocker arm assemblies.
Seawater Cooled Models:Provideforadequate
water supply to seawater pickup (see Section
6A).
Clean carbon from valves using a wire wheel.
Clean gasket material from cylinder head mating
surfaces.
Closed Cooled Models: Refill closed cooling
section (see Section 6B), and provide adequate
water supply to seawater pickup.
4.
Clean all carbon from combustion chambers and
valve ports using carbon remover brush.
!
CAUTION
a
Ensure that cooling water supply is available be-
fore starting the engine.
8.
Start engine, set timing, set idle speed, and
check for leaks.
Cylinder Head and Valve
Conditioning
Disassembly
72567
a - Carbon Remover Brush (J-8089)
1.
Using valve spring compressor, compress valve
spring and remove valve locks. Slowly release
tool.
5.
Thoroughly clean valve guides with valve guide
cleaner.
a
a
72564
a - Valve Guide Cleaner (J-8101)
72565
a - Valve Spring Compressor (J-8062)
2.
3.
Remove all valve components.
Remove valves from cylinder head and place in
a rack, in order, for reassembly in their original
locations.
Index
3A-30 - 454 C.I.D. (7.4L) / 502 C.I.D. (8.2L)
90-823224--2 796
| 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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