Mercury MerCruiser Axius SeaCore 350 MAG, Manual

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Section 5 - Maintenance
90-8M0050539
eng
MAY 2011 Page 97
Positive Crankcase Ventilation Valve (PCV)
Changing
NOTE: We recommend the use of Mercury MerCruiser replacement parts to ensure compliance with emission regulations.
NOTE: On V6 models the PCV valve is non‑serviceable and is an internal component of the valve cover.
1. Remove the PCV valve from the port valve cover.
a - PCV valve
b - Hose
2. Disconnect the PCV valve from the hose and discard the valve.
3. Install a new PCV valve in the valve cover and reconnect the hose.
4. Ensure that the PCV valve is tightly seated in the valve cover.
Water‑Separating Fuel Filter (MPI)
Water‑Separating Fuel Filter
!
WARNING
Fuel is flammable and explosive. Ensure that 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.
!
CAUTION
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 II Models
a - Fuel filter mounting bracket
b - Sealing ring
c - Fuel filter
Removal
1. Allow the engine to cool down.
mc71925-1
a
b
a
b
c
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