Mercury MerCruiser MCM 454 Mag MPI Service Manual page 455

FUEL DELIVERY SYSTEM FOR ELECTRONIC FUEL INJECTION
MEFI 3 FUEL COOLER TO FUEL RAIL LINE INSTALLATION
1. Install fuel cooler-to-fuel rail line as follows:
a. Install two new O-rings on fuel inlet line.
b. Lubricate both O-rings with a small amount of liquid soap.
c. Insert fuel line in orifice of fuel rail as shown. Ensure that the fuel line is fully seated
d. Install screw and torque to 108 lb. in. (12 N·m).
2. Connect the fuel line to the fuel cooler.
3. Install the fuel pump to the cooler as follows:
a. Install the remaining four (of six) O-rings on the fuel pump / cooler elbow fitting as
b. Lubricate O-rings for the elbow fitting with a small amount of liquid dish soap (obtain
c. Install the elbow in the fuel pump.
Index
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in fuel rail.
a
a - Upper Fuel Rail Orifice
b - Fuel Line, Fuel Cooler-to-Fuel Rail
c - Screw
d - O-Rings (2)
shown.
locally).
SERVICE MANUAL NUMBER 23
d
b
c
90-861326--1 MARCH 1999
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