3.
Install new O-rings on fuel inlet and outlet lines.
Lubricate O-rings using a water soap solution
and install lines to fuel rail. Secure fuel line retain-
er to fuel rail using screw.
2. Remove pressure regulator attaching screws
and nuts, and remove pressure regulator.
c
g
d
a
a
b
e
d
b
f
72915
a - Fuel Rail
b - Pressure Regulator
c - Screw
d - Filter
e - O-Rings
f - Nut
e
c
f
72915
a - Fuel Rail
b - Fuel Inlet Line
c - Fuel Outlet
d - O-Rings
e - Fuel Line Retainer
f - Screw
3.
Carefully remove filter from fuel rail using an awl
or equivalent tool.
g - Fuel Rail Retaining Screws
CLEANING AND INSPECTION
4.
5.
Connectelectricalconnectorateachfuelinjector.
1.
Inspect pressure regulator seating area on fuel
rail for pitting, nicks, burrs or irregularities. Use a
magnifying glass if necessary. If any of the above
is present, replace the fuel rail.
Install plenum, throttle body and flame arrestor
as outlined in this section.
Pressure Regulator
2.
Clean filter of any debris using solvent. Dry using
compressed air.
NOTICE
Refer to “Service Precautions,” in “Repair
Procedures,” BEFORE proceeding.
INSTALLATION
1.
2.
Install filter into appropriate bore of fuel rail.
Install new pressure regulator O-rings using a
water and soap solution.
REMOVAL
1.
Remove flame arrestor, throttle body, plenum
and fuel rail as outlined in this section.
3.
4.
Carefully slide pressure regulator into fuel rail.
Apply Loctite 8831 to threads of attaching
screws. Install screws and nuts and torque to
88-124
lb. in. (10-14 N·m).
5.
6.
Install fuel rail, plenum, throttle body and flame
arrestor as outlined in this section.
With engine OFF, cycle ignition switch to ON wait
2
seconds, and then OFF, four times waiting 10
seconds after each key off to prime the fuel sys-
tem and check for leaks.
Index
5C-168 - 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.
Thank you