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  1. #1
    My Boats:
    Boatless :(
    Join Date
    May 2004
    Midlothian, VA

    Calling OSO mechanics - clicking noise...

    When at idle, I hear this clicking noise that is very consistent. A good analogy would be the sound at the beginning of the show 60 minutes. When I throttle, it seems to go away.

    Does anyone know what this may be? I was thinking maybe low on oil and I am just hearing the valves? When I start, I always see a sooty/oily ash behind my exhaust - acts like it lets out a small bit of oil - is this a valve guide seal problem that is worsening?

    I will check the oil tomorrow morning...put in the water and was too dark to read the dipstick.

  2. #2
    Charter Member #9/ Moderator Charter Member LakeRacer's Avatar
    My Boats:
    99 Advantage 34 Offshore
    Join Date
    Oct 2000
    Phoenix, AZ, USA

    Re: Calling OSO mechanics - clicking noise...

    If you have the 28 Heat, it might be the internal (metal?) flappers that they use in the exhaust tailpipe. I had a Heat several years ago and heard the "clicking" noise at idle only.

  3. #3
    PF Marine Platinum Member Coolerman's Avatar
    Join Date
    Mar 2003
    Dallas, TX

    Re: Calling OSO mechanics - clicking noise...

    It's probably just the lifters. Does it only do it when it is cold? Most GM trucks have a consistent tick (from the lifters) when they are cold.

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