Section 4 - Maintenance
90-8M0113987 eng DECEMBER 2015 Page 57
7. Lubricate the fuel filter seals.
Typical
a - Water‑separating fuel filter
b - Seals
Tube Ref No. Description Where Used Part No.
80
SAE Engine Oil 30W Water-separating fuel filter sealing ring Obtain Locally
8. Align the filter to the bracket. Twist the filter by hand to secure the filter to the bracket. Do not use a filter wrench.
Typical
a - Water‑separating fuel filter
9. Ensure that the drain cap is securely tightened.
10. Connect the WIF sensor wires, if equipped.
11.
Fill the water‑separating fuel filter with fuel. Refer to Filling.
12. Check the filter and drain cap for fuel leaks.
13. Connect the battery cables.
14. Start and operate the engine. Check the filter connection for fuel leaks. If leaks exist, recheck filter installation. If leaks
continue, stop the engine immediately and contact your Mercury Diesel authorized repair facility.
Filling
A type of hand pump and primer plunger is located on the fuel filter bracket and is used to
• Refill the fuel filter when draining or changing the filter.
• Refill the fuel system on the engine if the system was run dry.
• Prime the fuel system if the engine has not been run for an extended period.
IMPORTANT: Only fill the fuel filter with the hand pump and primer plunger to ensure that unfiltered fuel does not get into the
fuel system.
NOTE: Follow this procedure after installing a new filter or if the fuel has been drained from the filter checking for water.
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