Installation - Mercury MerCruiser MCM 454 Mag MPI Service Manual

FUEL DELIVERY SYSTEM FOR ELECTRONIC FUEL INJECTION

Installation

1. If removed, reinstall the fuel filter assembly and secure using the two self locking nuts.
Tighten the nuts securely.
2. Connect the fuel lines to the fuel filter adapter. Tighten securely.
3. Route the fuel lines as needed and place the Cool Fuel assembly on the engine mount
studs. Install the two engine mounting nuts. Torque to 30 lb. ft. (41 N·m).
MEFI 1 FUEL COOLER TO FUEL RAIL LINE INSTALLATION
4. On All Models Except 7.4L MPI: Connect the cooler-to-fuel rail line as follows:
a. Lubricate the O-ring with a small amount of liquid dish soap (obtain locally).
b. Route the fuel line to the fuel rail and insert in upper fuel rail orifice. Ensure that the
c. Position the retainer plate around the fuel line. Install the retaining screw. Torque the
Index
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b
a - Filter Assembly
b - Fuel Lines
c - Lock Nuts
line is fully seated.
screw to 81 lb. in. (9 N·m).
a - Upper Fuel Rail Orifice
b - Fuel Line, Fuel Cooler-to-Fuel Rail
c - Screw
d - Retainer Plate
e - O-Ring
a
a
e
d
b
c
SERVICE MANUAL NUMBER 23
c
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90-861326--1 MARCH 1999
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