Mercruiser Part ID Required

Discussion in 'Sterndrives' started by mikealston2428, Jul 24, 2015.

  1. mikealston2428
    Joined: Jul 2011
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    mikealston2428 Senior Member

    Hi all,
    Can anyone please tell me what the round part with knobs on the inside is called.
    It is all eaten away at the bottom.
    I need to remove and replace it.
    Thanks,
    Mike
     

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  2. PAR
    Joined: Nov 2003
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    PAR Yacht Designer/Builder

    Model and year of the drive and a more precise description of the part, maybe an arrow?
     
  3. mikealston2428
    Joined: Jul 2011
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    mikealston2428 Senior Member

    photo

    Hi again hope this helps
    It a Mercruiser MC1
     

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  4. CDK
    Joined: Aug 2007
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    CDK retired engineer

    The official Merc name is gimbal bearing.
    It is built from a standard ball bearing and an aluminum spherical sleeve allowing some radial adjustment. With seawater intrusion and no regular greasing the bottom suffers from corrosion.
     
  5. mikealston2428
    Joined: Jul 2011
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    mikealston2428 Senior Member

    Hi CDK
    it's not the gimbal bearing.
    I have removed the bearing and have a new one to install.
    The part I'm looking to ID is just behind the bearing towards the back of the boat.
    It has knobs small knobs on the inside that I am thinking fit a tool for removal.
    Thanks,
    Mike
     
  6. PAR
    Joined: Nov 2003
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    PAR Yacht Designer/Builder

    There's only three parts in that bearing bore, the seal, the bearing and the tolerance ring. The parts are listed in that order from front to back, so you need the tolerance ring. If you order (OEM 30-60794A4) you'll get both the bearing and the ring.

    [​IMG]
     
  7. mikealston2428
    Joined: Jul 2011
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    mikealston2428 Senior Member

    This is the part guys
     

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  8. mikealston2428
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    mikealston2428 Senior Member

    This round part
     

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  9. 7228sedan
    Joined: Nov 2009
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    7228sedan Senior Member

    I think that's part of the gimbal housing itself, cast in the transom assembly. I don't believe that is a separate part.
     

  10. gonzo
    Joined: Aug 2002
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    gonzo Senior Member

    That is the casting itself. If it is so corroded that the bellows can't attach to it any more, you need a new transom shield.
     
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