whining noise....Mercruiser Alpha One

Discussion in 'Gas Engines' started by Burns12865, Jun 25, 2011.

  1. Burns12865
    Joined: Jun 2011
    Posts: 1
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Western Kentucky

    Burns12865 New Member

    We have a 1996 Crownline with a 4.3LX Mercruiser Alpha One. Put a new crate motor in last summer with an aluminum intake. Last night, when it is put in gear, there is a whining noise, like a supercharger sound, although I know that isn't it. Pulled plug on bottom of lower unit and metal shavings came out in the oil. We smelled the 90 wt. last night but saw no leaks, prop was not hot and it moves in forward and reverse. Any thoughts on what this could be??? Thanks for responses
     
  2. whitepointer23

    whitepointer23 Previous Member

    you got metal, so strip and see whats happening. sounds like bearings but you will be able to overhaul the whole unit while it is out.
     
  3. gonzo
    Joined: Aug 2002
    Posts: 13,314
    Likes: 325, Points: 93, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    It might have spun a bearing in the housing too. You need to take it apart to see. However, an aftermarket sterndrive with a three year warranty is cheaper than buying the parts to rebuild your own unit.
     
  4. oops!
    Joined: Oct 2007
    Posts: 18
    Likes: 1, Points: 0, Legacy Rep: 16
    Location: kelowna bc

    oops! Junior Member

    obviously with the shavings you have drive problems.....

    however, another thing to check is the gymbal bearing......grease it
     
  5. Frosty

    Frosty Previous Member

    Are you running your drive in full tilt position? Shoud'nt do that!!

    Gymbal bearings are expensive, if its rusted greasing wont do anything. Buy a new one from a bearing supplies,-- thats where Merc get them from.

    Merc dont make bearings,-- half the price at least.
     
  6. PAR
    Joined: Nov 2003
    Posts: 19,133
    Likes: 470, Points: 93, Legacy Rep: 3967
    Location: Eustis, FL

    PAR Yacht Designer/Builder

    " . . whining noise....Mercruiser Alpha One . . . "

    Don't bring the wife with you next time out . . .
     
  7. cyclops2
    Joined: Sep 2010
    Posts: 242
    Likes: 7, Points: 0, Legacy Rep: 94
    Location: New Jersy

    cyclops2 Senior Member

    I never hear any whining in my Alpha1.

    When I bring my mistress along.
     
  8. PAR
    Joined: Nov 2003
    Posts: 19,133
    Likes: 470, Points: 93, Legacy Rep: 3967
    Location: Eustis, FL

    PAR Yacht Designer/Builder

    You see this is the basic difference when they're stuck with an Alpha, fantasizing about my Bravo . . .
     
  9. Submarine Tom

    Submarine Tom Previous Member

    Look Charlie...

    It could be your sub-conscience whining about how much this repair is going to cost you.

    -Tom
     
  10. cyclops2
    Joined: Sep 2010
    Posts: 242
    Likes: 7, Points: 0, Legacy Rep: 94
    Location: New Jersy

    cyclops2 Senior Member

    Life & humor is good. :)
     

  11. PAR
    Joined: Nov 2003
    Posts: 19,133
    Likes: 470, Points: 93, Legacy Rep: 3967
    Location: Eustis, FL

    PAR Yacht Designer/Builder

    That sucks Tom, because now a whole new arena of possibilities is opened up and I'm not prepared for the prospect, that I've subliminally talked myself in or out of stuff.
     
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.