INSTALLATION
Throttle Body
1.
Install new lower O-rings on fuel injectors. Lubri-
cate O-rings using a water soap solution.
REMOVAL
!
CAUTION
Ensure that fuel pressure is relieved before re-
moving the fuel inlet and return lines.
b
a
IMPORTANT: DO NOT allow the TP sensor, fuel
pressure regulator, fuel injectors and IAC valve
to come into contact with solvent or cleaner.
These components should be removed prior to
immersion in solvent.
c
d
1.
2.
3.
Remove the flame arrestor from the throttle body.
Disconnect throttle cable.
Disconnect the electrical connections from the
TP sensor, IAC and fuel injectors. (Squeeze plas-
tic tabs on injectors and pull straight up).
73766
a
a - Fuel Injector
b - Upper O-Ring
c - Lower O-Ring
d - Fuel Filter
2.
3.
Install upper O-rings in fuel meter body. Lubricate
O-rings with water soap solution.
Install fuel injectors into the fuel meter body. Align
the raised lug on the injector base with the notch
in fuel meter cavity.
73750
a
a - Electrical Connections
4.
5.
Remove fuel inlet and outlet lines from throttle
body.
73771
Remove screws retaining the throttle body to
adapter plate.
NOTE: The electrical terminals of the injectors
should be parallel with throttle shaft.
NOTE: Place a shop rag over the intake manifold
opening to prevent debris from entering intake man-
ifold.
4.
Install gasket and fuel meter cover, torque
screws to 28 in. lb. (3.0 N⋅m) and flame arrestor
as outlined in this section.
5.
6.
Connect electrical connections to fuel injectors.
With engine “OFF,” and ignition “ON,” check for
leaks around gasket and fuel line couplings
Index
5C-152 - ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY)
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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