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Section 5 - Maintenance
Water‑Separating Fuel Filter (MPI)
Water‑Separating Fuel Filter
Fuel is flammable and explosive. Ensure the key switch is off and the lanyard is positioned so that the engine cannot start. Do
not smoke or allow sources of spark or open flame in the area while servicing. Keep the work area well ventilated and avoid
prolonged exposure to vapors. Always check for leaks before attempting to start the engine and wipe up any spilled fuel
immediately.
Failure to release pressure from the fuel system will result in fuel spraying out, which can cause a fire or explosion. Allow the
engine to cool completely and release all fuel pressure before servicing any part of the fuel system. Always protect eyes and
skin from pressurized fuel and vapors.
GEN III Models
d
c
b
a
Removal
1.
Allow the engine to cool down.
NOTE: Mercury MerCruiser recommends that the engine be shut off for 12 hours prior to filter removal.
2.
Close fuel supply valve, if equipped.
3.
Disconnect the Cool Fuel Module harness from the engine wiring harness.
4.
Turn the key switch to the start position and allow the starter to operate for 5 seconds.
5.
Turn key switch to off position.
6.
Loosen each filter assembly retaining screw until the screw is disengaged from the Cool Fuel Module. Do not remove the filter
assembly retaining screws from the filter cap.
7.
Unseat the filter assembly by grasping the filter assembly handle and pulling upward. Do not remove the filter assembly from
the Cool Fuel Module at this time.
8.
Allow any fuel that may be in the filter assembly to drain out through the bottom of the filter assembly and into the Cool Fuel
Module filter reservoir.
Page 98
WARNING
!
CAUTION
!
a -
Cool Fuel Module
b -
Cool Fuel Module harness
c -
Filter cap
d -
Filter assembly retaining screw
e -
Fuel filter element
f -
Filter cup
e
g -
Cool Fuel Module filter reservoir
h -
O‑ring
h
f
g
8837
90-864197084 NOVEMBER 2008
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Table of Contents
Troubleshooting
