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  1. #1
    Moderator SEAHORSE's Avatar
    Join Date
    Jun 2004
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    8,678

    New Exhaust Grommet for 3.4L engines 2008-2010 250 HO models

    Evinrude just came out with a new exhaust grommet that withstands the increased water pressures on 250HO motors that have the M2 gearcase replacement. This is new compared to the "new" grommet that was included with the M2 kit.

    See your dealer about getting yours replaced if needed. Your dealer can reference service bulletin 2011-04 W for parts and procedures. Evinrude is sending out letters about this, but why wait.

    You can tell if you already have the new grommet by measuring the inner plastic "pee hole" tube from the hex fitting to the end. The new one is 5/8".




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    A Technical troubleshooter possessing more tools than talent !

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  3. Member
    Join Date
    Apr 2009
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    roanoke rapids, nc
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    #2

    Re: New Exhaust Grommet for 3.4L engines 2008-2010 250 HO models (SEAHORSE)

    what would happen if you didnt replace it?

  4. Member
    Join Date
    Jan 2006
    Location
    Chelmsford
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    57
    #3

    Re: New Exhaust Grommet for 3.4L engines 2008-2010 250 HO models (dk239)

    From experience, if you do not replace with newest gromet the excessive presure created by the new M2 lower unit will blow apart at the mechanical band and fill the cowling with water........and thats not good.

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