Clunking Noise coming from the prop area

Discussion in 'Sterndrives' started by chef2b86545, May 26, 2010.

  1. chef2b86545
    Joined: May 2007
    Posts: 20
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Michigan

    chef2b86545 Junior Member

    I have a 1988 Four Winns 170 Freedom. OMC Cobra 4 Cyl. 3 L. I bought a new prop. Put that on yesterday and also just started up the boat for the first time this year. When i started it the prop started making a clunking noise and it will move back and forth a litlle.
  2. marshmat
    Joined: Apr 2005
    Posts: 4,127
    Likes: 149, Points: 63, Legacy Rep: 2043
    Location: Ontario

    marshmat Senior Member

    As in, the prop moves a bit on its shaft? (If so: You probably forgot to tighten the prop nut. Never back off the nut just to line up the cotter pin- torque it down to the proper spec, then go a bit tighter if you need to line up the castle nut with the cotter pin hole.)
  3. gonzo
    Joined: Aug 2002
    Posts: 16,796
    Likes: 1,718, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    Did you instll the spacer?
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.