CLEANING AND INSPECTION
Throttle Body Adapter Plate
1.
Thoroughly clean metal parts of throttle body in
a cold immersion type cleaner. Dry with com-
pressed air. Make certain that all passages are
free of dirt and burrs.
NOTICE
Refer to “Service Precautions,” in “Repair
Procedures,” BEFORE proceeding.
2.
Inspect mating surfaces for damage that could
affect gasket sealing.
REMOVAL
3.
4.
Inspect throttle body for cracks in casting.
IMPORTANT: Place a clean shop towel over the
intake manifold opening to prevent foreign mate-
rial from entering the engine.
Inspect throttle plates, linkage, return springs,
etc., for damage, wear and foreign material.
1.
Remove flame arrestor.
5.
Check intake manifold plenum for loose parts
and foreign material.
2. Remove throttle body refer to Throttle Body Sec-
tion.
INSTALLATION
3.
Remove screws and the throttle body adapter
from the intake manifold.
1.
Install fuel injectors and fuel meter body as pre-
viously described in this section.
1
2.
3.
Install a new gasket on adapter plate.
Install throttle body on adapter plate and torque
the screws. 30 ft. lb. (40 N⋅m).
4.
5.
Connect throttle linkage to throttle body.
2
Move throttle from idle to WOT and check that the
throttle movement is not binding.
6.
7.
8.
9.
Connect the fuel inlet and return lines. Torque to
7
8
23
ft. lb. (31 N⋅m).
3
Connect TP sensor, IAC, and fuel injectors con-
nections.
Turn key to on position and check for fuel leaks
around the inlet and return line connections.
Start engine and check for fuel leaks.
4
73965
5
6
1
2
3
4
5
6
7
8
- Screws (3)
- Throttle Body Unit
- Gasket
- Throttle Body Adapter Plate
- Gasket
- Intake Manifold
- Screws (2)
- Manifold Absolute Pressure (MAP) Sensor
Index
90-823224--2 796
ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY) - 5C-153
| 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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