3. Cut the cable tie securing the crankcase vent hose to the flame arrestor and gently pull the vent hose off the flame arrestor.
6.2L crankcase vent hose shown, 4.5L similar
4. Clean the flame arrestor with warm water and a mild detergent.
5. Inspect the flame arrestor for holes, cracks, or deterioration. Replace if necessary.
6. Allow the flame arrestor to air dry completely before use.
7. Install the vent hose and secure with a cable tie.
8. Install the flame arrestor and tighten the flame arrestor clamp to the specified torque.
Description
Nm lb‑in. lb‑ft
Flame arrestor clamp 6.2 55 –
9. Install the engine covers.
Changing the Positive Crankcase Ventilation (PCV) Valve
This engine is equipped with a positive crankcase ventilation (PCV) valve. The PCV valve should be inspected every 100 hours
of operation or at least once a year, whichever occurs first.
NOTE: The PCV valve should be replaced with Mercury Mercruiser OEM parts to ensure compliance with emission regulations.
1. Pull the PCV valve out of the starboard valve cover and remove from the hose.
Exhaust manifold removed for visual clarity
2. Inspect the PCV valve for cracks or deterioration and replace if necessary.
3. Inspect the rubber grommet on the valve cover for cracks or deterioration and replace if necessary.
4. Install the PCV valve into the hose and insert into the rubber grommet on the valve cover. Insert the PCV valve into the
rubber grommet.
Section 4 - Maintenance
Page 58 90-8M0128973 eng MAY 2017
To Next Page
Loading...
Need help?
General