Section 4 - Maintenance
90-8M0133679
eng
JUNE 2017
Page 49
The engine‑mounted water‑separating fuel filter is equipped with a water‑in‑fuel (WIF) sensor that should alert the operator
when water is present in the filter. This fuel filter needs to be replaced at specified intervals or whenever water is detected in
the fuel, whichever comes first.
The operator may be alerted that the WIF sensor has detected water in the fuel, depending upon the boat instrumentation
package and if equipped:
•
A fault code may be displayed on a system viewer.
•
The audio warning system may sound.
See
Features and Controls
.
Drain or replace the remote mounted primary filter (such as a Racor® filter) at specified intervals, or whenever water is
detected in the engine‑mounted fuel filter.
Draining
The engine‑mounted water‑separating fuel filter can be drained of water and small dirt particles by opening the drain cap on the
bottom of the filter.
NOTE: To ensure complete draining in warm weather, drain the filter before starting daily operations. In cold weather, where
there is a possibility that the condensed water will freeze, drain the filter shortly after the end of daily operations.
NOTE: Place a suitable container under the fuel filter to catch contaminated fuel or water. Dispose of properly.
1. Place a container under the drain cap on the filter.
2. Open the drain by turning the drain cap counterclockwise (as viewed from the bottom of the filter) until fuel starts draining.
Do not remove the drain cap.
Typical water-separating fuel filter
a -
WIF sensor wire connection
b -
Filter
c -
Drain cap
3. Drain until the fuel is clear in appearance.
4. Close the drain cap by turning clockwise. Tighten securely.
5. Fill the fuel filter. See
Filling
.
Replacing
!
WARNING
Performing service or maintenance without first disconnecting the battery can cause product damage, personal injury, or
death due to fire, explosion, electrical shock, or unexpected engine starting. Always disconnect the battery cables from the
battery before maintaining, servicing, installing, or removing engine or drive components.
IMPORTANT: The element cannot be cleaned and reused. It must be replaced.
1. Disconnect both battery cables from the battery.
2. Disconnect the WIF sensor wires, if equipped.
a
c
b
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Summary of Contents for MerCruiser Diesel Inboard 2.8L
Page 1: ...2 8L and 4 2L Diesel Inboard Models OPERATION MAINTENANCE MANUAL ...
Page 2: ......
Page 8: ...Page iv 90 8M0133679 eng JUNE 2017 ...
Page 20: ...Section 1 Getting to Know Your Power Package Notes Page 12 90 8M0133679 eng JUNE 2017 ...
Page 38: ...Section 3 Specifications Notes Page 30 90 8M0133679 eng JUNE 2017 ...
Page 92: ......