Section 5 - Maintenance
90-864195070 JUNE 2007 Page 83
GEN II Models
a
b
c
6527
a - Fuel filter mounting bracket
b - Sealing ring
c - Fuel filter
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. Wrap the water‑separating fuel filter with a cloth to help catch any fuel spills or spray.
4. Remove and discard the water‑separating fuel filter and sealing ring from the mounting
bracket.
INSTALLATION
1. Coat the sealing ring on the new filter with engine oil.
Tube Ref No. Description Where Used Part No.
80
SAE Engine Oil 30W
Water-separating fuel filter
sealing ring
Obtain Locally
2. Thread filter onto the mounting bracket and tighten securely by hand. Do not use a filter
wrench.
3. Open fuel supply valve, if equipped.
4. Ensure that engine compartment is properly ventilated.
NOTICE
Failure to provide sufficient cooling water will damage the water pump and cause the
engine to overheat. Provide a sufficient supply of water at the water inlets during
operation.
5. Supply cooling water to the engine.
6. Start the engine. Check for gasoline leaks around the fuel filter assembly. If leaks exist,
stop the engine immediately. Recheck the filter installation, wipe up any spilled fuel,
and properly ventilate the engine compartment. If leaks continue, stop engine
immediately and contact your authorized Mercury MerCruiser dealer.
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