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Crusader milky oil??

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  • Crusader milky oil??

    So I helped my buddy winterize his Silverton 330 Sport Bridge today.....
    8.1's......
    Changed oil in port motor....no problem....ran af through strainer... no problem etc...
    Starboard engine.... well not so much.....
    pumped out a milky mess of oil.... did a compression check and all cyl at or near 150....
    No overheat... runs good.....oil pressure is 40psi.....manifolds and risers are 2 years old....

    Question is ....
    What is the best way to diagnose the issue..??

  • #2
    Change oil, run it, see if the moisture comes back.

    Pressure test the oil cooler

    Pull elbows and inspect manifold/riser mating surface
    Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

    1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - http://forums.iboats.com/forum/owner...988-rogue-2420

    Past Boats
    1970 Wooster Hellion - Merc 9.8
    2002 SeaRay 190BR - 5.0 - A1G2 - "Cheeseheads in Paradise"
    1984 Avanti 170DLI -3.0 stringer- "Ship Happens"

    What’s behind you doesn’t matter.Enzo Ferrari

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    • #3
      Did any of the starboard plugs looked washed?

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      • #4
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        Or was there corrosion on the electrodes or an orange color on the center electrode insulator? These are signs of water getting in a cyl. Could also be an intake manifold gasket or a head gasket. The main priority is to get it fixed now because water in the cyls + water in the oil = ruined engine in the spring....
        1988 Four Winns 200 Horizon
        4.3 OMC Cobra

        98 Jeep Grand Cherokee 4.0 Selectrac
        07 Jeep Grand Cherokee Limited 5.7 Quadradrive II

        "While air doesn't freeze....rust never sleeps"

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