3.
Disconnect reference line at pressure regulator.
2. Clean plenum in solvent and dry with com-
pressed air.
3.
Inspect mating surfaces for damage that could
affect gasket sealing.
4.
Inspect plenum for cracks in casting.
INSTALLATION
1.
Install one gasket onto each of the four intake
manifold trumpets.
b
a
2.
Rest plenum on intake manifold as shown. Con-
nect drain line at plenum. Lower plenum evenly
onto intake manifold and install twelve plenum
mounting fasteners. Torque fasteners to 150 lb.
in. (17 N·m).
72796
a
a - Reference Line
b - Pressure Regulator
4.
Remove twelve plenum mounting fasteners and
lift straight up from intake manifold. Turn plenum
slightly and rest on intake manifold as shown.
Disconnect drain line at plenum and remove ple-
num.
c
a
b
72797
a - Plenum
c
b - Intake Manifold
c - Drain Line
3.
Connect reference line to pressure regulator.
b
a
b
72797
a - Plenum
b - Intake Manifold
c - Drain Line
IMPORTANT: Place a clean shop towel over each
of the eight intake manifold openings to prevent
foreign material from entering the engine.
72796
CLEANING AND INSPECTION
a - Reference Line
b - Pressure Regulator (VST Models) Or Fuel Damper (Cool
Fuel Models)
IMPORTANT: Use care when removing gasket
material from intake manifold and plenum. Fail-
ure to do so could result in damage to the intake
manifold and plenum.
4.
Connect IAT and MAP sensor electrical connec-
tors.
1.
Carefully remove all gasket material from intake
manifold and plenum.
Index
90-823224--2 796
ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY) - 5C-163
| 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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