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  1. #1

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    Unidentified Exhaust Objects

    While installing a d-plate on a stock 02 GPR I found these metal objects that fell out as I removed the catalyst housing off the cat con. Can anyone identify these metal objects? The cat was in good conition. The ski runs great, compression is within 5 psi on all cylinders and runs 62.8 mph on GPS.

    I also found what looks like salt corrosion in the stinger. Has anyone seen this before? How do you prevent this from happening?

    Thanks for the help - John
    Last edited by x29c; 07-09-2008 at 01:24 AM.


  2. #2

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  3. #3

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  4. #4
    Pistonwash's Avatar
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    Those are remnants of needle bearings and the cages.

    At some point the ski had a piston/bearing failure and made it through exhaust and stayed...where did you get the ski and did they say they had a rebuild at some point?

  5. #5

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    Quote Originally Posted by Pistonwash View Post
    Those are remnants of needle bearings and the cages.

    At some point the ski had a piston/bearing failure and made it through exhaust and stayed...where did you get the ski and did they say they had a rebuild at some point?
    I bought it from a guy in Melbourne, FL. The ski had 50 hours on it. He said he owned it for a year and only took it out about ten times and never had any problems and did nothing to the ski. To his knowledge the ski had never been pulled apart. The original owner was from the Titusville area. There are some bolts that look like they have been been a little stripped on the exhaust as though someone was in there before. I have put 15 hours on it without any problems.

    Am I safe or should I pull the head and check the walls and pistons?
    Last edited by x29c; 07-09-2008 at 02:06 AM.

  6. #6
    Pistonwash's Avatar
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    Absolutely! You still might have pieces hanging in God knows where in that engine. These were stuck in the cat? Not after the catalytic, right? The engine let go a piston at some point..pull the head and post pics, either PM me or just post in this thread whenever you get to it.
    Last edited by Pistonwash; 07-09-2008 at 02:18 AM.

  7. #7

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    Quote Originally Posted by Pistonwash View Post
    Absolutely! You still might have pieces hanging in God knows where in that engine. These were stuck in the cat? Not after the catalytic, right? The engine let go a psiton at some point..pull the head and post pics, either PM me or just post in this thread whenever you get to it.
    They were not in the cat, they were around the sides of the cat, between the cat and the housing laying at the bottom. Nothing after the cat. Will post some pics once I get the head off.

    Thanks for the help Pistonwash

  8. #8
    Pistonwash's Avatar
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    Not a problem..I was born in Lakeland BTW. Thats right...Polk county boy here.

    Get the head off and snap some pics..I wanna make sure there's no futher damage that you don't know about. Having bearing pieces in the exhaust is not good.

  9. #9
    Pistonwash's Avatar
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    Also, that is normal for the exhaust to have crud/corrosion in it. The only way to help keep it down is to Extrudehone the inside of the exhaust..it makes a mirror-like finish that is harder for gunk to collect. It's not hurting anything that badly...just looks worse than it is.

  10. #10
    Duke's Avatar
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    PW is right!! A motor has grenaded at one point in time. The fact that bearing were found in the exhaust and its running good now leads me to believe its a different motor alltogether.

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