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  1. #1

    Default Spun Bearing Cause

    I own a 2003 Centurion Cyclone (v-drive) with a mercruiser 350 MAG MPI (5.7). I have approximately 380 hours and do not drive the boat aggressively. I dropped the boat in the water in early June and was running back home to beat a storm. During the initial run I noticed the boat was starting to run rough and ultimately the engine stalled at which point I noticed smoke coming out of the engine compartment. Turns out my mechanic did not hook up all the hoses after witnerization and it fried the wet exhaust system. My mechanic owned up to the mistake and replaced all of the hoses. I dropped the boat back in the water in late June. I ran the boat for exactly one tank of gas. Literally after filling up I noticed a knocking in the engine as I accelerated and that knocking continued to get louder the faster I went. I pulled the boat out of the water and brought back to my mechanic. He tells me I "spun a bearing" and that he reccomends a rebuilt replacement motor.

    I asked if the spun bearing was related to the overheat issue and he said "no they are independent issues". I am not a mechanic, but I have to beleive that the overheat may have caused this or be related to this issue. Thoughts?

  2. #2
    Join Date
    Sep 2008
    Maryland - USA

    Default Re: Spun Bearing Cause

    It could be that the overheat induced the spun bearing but not likely. Main culprit is lack of oil...either way, the bottom line is it will cost you too much money to "prove" it. And, believe me, the last thing you wanna do is try to encourage a court to rule in your favor - only the lawyers win in court.

    Bite the bullet and fix it or sell it and buy another one.

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