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Thread: Bombardier / CanAm exhaust

  1. #1
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    Default Bombardier / CanAm exhaust

    My canam has an extremely obnoxious exhaust rattle. There's a heat shield over the pipe under the seat, and it rattles something terrible. Anybody got easy fixes for it?

  2. #2
    Member Matt's Avatar
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    Mine does the same thing. It's the springs behind the heat shield that causes the rattling noise. RTV silicone should fix that problem though.

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    What model are you running?

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    I'm running the Outlander 400.

    Matt, are you suggesting that I just coat the springs with RTV? Or something else?

  5. #5
    Member mod elan's Avatar
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    Using red high temp silicone on snowmachine exhaust springs to combat vibration and breakage is very common on modified motors and even a lot of stockers. I've seen where they fill up the inside of the coils, but just running a bead down the side is adequate. Used to break the hooks off the end of the springs on a set of twin pipes. Ran a bead on them and they quit breaking. Will work on any small engine application.

  6. #6
    Member IceKing02's Avatar
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    Default Outty 400 rattle

    I had to get a guy to reweld the bolt boss back on to the exhaust pipe. This allowed me to bolt the heat shield back down to the exhaust pipe. Until then I had to stuff a crushed Coke can between the heat shield and the exhaust pipe. That's the only time that I had an UN-GODLY rattle from the exhaust...no longer.

    Good luck with your Outty. I've run almost 1800mi on my 05.

  7. #7
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    Well, I finally got to it today. After pulling off the left shield half, I found that the forward bolt on the other shield half was loose. It was bottomed out, so I threw an extra washer in there to pull it tight. I guess I probably should have inspected better before asking questions. I put a bead of RTV on each of the springs since I already had it tore down that far. I'm going to let it sit over night, and check it for rattles tomorrow.

  8. #8
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    Sounds good now. Nice and quiet. Not sure if it needed the RTV or not, but that's something that's good to know. Thanks.

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