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Thread: Cam Sensor alarm on 2005 525 over 3500 rpms

  1. #21
    PBN User
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    28' Bertram (Water Therapy), 22' Velocity (And Take Your Money), 21' Sea Ox (Fowl Attitude)


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    I had a buddy run into something similar with his 496. When he put Dana manifolds on it they werent sealed/welded enough to keep pressure in the manifolds and fully cool them. He basically welded what he could and it quit going into guardian mode.

  2. #22
    PBN User Slandrew's Avatar
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    If a cam sensor effects firing order could bad fuel cause a problem with the sensor?No expert but try blowing out water pressure lines

  3. #23
    PBN User Slandrew's Avatar
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    My guy says bad ground wire can also effect readings on sensor if that helps?Good luck!

  4. #24
    PBN Charter Member 92nsx's Avatar
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    33 Outlaw, 502 Mag's


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    Well the saga continues. Two thumbs up to Mercury with help over the phone! All the tech help and support Jeff could ever ask for on a 11 year old engine!! Out standing

    It only dose it when it isn't in "clean" water. On flat water runs great no issues. Get in to wash, or waves and it acts up. Speaking with mercury and what we have done where the new impeller seemed to fix but not fix the issue. They now believe it has a collapsed water hose / blockage in the transom assy. He had some name for it . So this winter sounds like there will be some digging behind the engine. Hopefully we can get to it with out pulling the engine.

  5. #25
    PBN User VoodooRob's Avatar
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    Quote Originally Posted by 92nsx View Post
    Well the saga continues. Two thumbs up to Mercury with help over the phone! All the tech help and support Jeff could ever ask for on a 11 year old engine!! Out standing

    It only dose it when it isn't in "clean" water. On flat water runs great no issues. Get in to wash, or waves and it acts up. Speaking with mercury and what we have done where the new impeller seemed to fix but not fix the issue. They now believe it has a collapsed water hose / blockage in the transom assy. He had some name for it . So this winter sounds like there will be some digging behind the engine. Hopefully we can get to it with out pulling the engine.
    It's referred to as Bravo-Itis, do a google search it will come up
    92nsx likes this.

  6. #26
    PBN Charter Member 92nsx's Avatar
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    33 Outlaw, 502 Mag's


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    Bravo-itis that's it!

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