Mercury MerCruiser MCM 454 Mag MPI Service Manual page 451

FUEL DELIVERY SYSTEM FOR ELECTRONIC FUEL INJECTION
4. Install the fuel rail fuel line following appropriate procedure:
Procedure A
1. Install fuel cooler-to-fuel rail line as follows:
a. Install two (of six) O-rings onto the cooler-to-fuel rail fuel line where it attaches to the
b. Completely loosen, but do not remove, the stepped screw that retains the fuel line.
c. Lubricate the two fuel line O-rings with a small amount of liquid dish soap (obtain
d. Insert the fuel line into the cooler orifice. Hand tighten the special screw.
e. Torque the stepped screw to 81 lb. in. ( 9 N·m).
Index
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cooler, if not already present on the line.
locally).
SERVICE MANUAL NUMBER 23
90-861326--1 MARCH 1999