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Whats inside?

Discussion in 'Technical Q&A' started by bquan94545, Aug 18, 2010.

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  1. bquan94545

    bquan94545 Karting

    Aug 8, 2010
    111
    Pinole, ca
    Full Name:
    bruce quan
    #1 bquan94545, Aug 18, 2010
    My Mondial seems to be nosier than most. The cat looks fine, no lose bits and the screens look good. I removed the muffler and there are no lose bits inside of it. However when the exhaust
    goes through the muffler it creates a chirping sound. Has anyone opened up a muffler to
    see whats inside? It's driving me crazy and I am almost ready to slice it open and try to
    repack it with fiber glass. Does anyone else have an idea on what to do?

    bruce
     
  2. BigTex

    BigTex Seven Time F1 World Champ
    Owner Rossa Subscribed

    Dec 6, 2002
    79,380
    Houston, Texas
    Full Name:
    Bubba
    #2 BigTex, Aug 18, 2010
    Search on "chirp" and "muffler tips"...

    I think the common wisdom is the it's the tip baffles/screens that make the noise, and jamming some shim stock around the assembly in the pipe will quiet it down!!!!

    Good luck!!
     
  3. bquan94545

    bquan94545 Karting

    Aug 8, 2010
    111
    Pinole, ca
    Full Name:
    bruce quan
    #3 bquan94545, Aug 18, 2010
    Now that's something I can do easily.

    thanks... Ill try it
     
  4. Paul_308

    Paul_308 Formula 3

    Mar 12, 2004
    2,345
    #4 Paul_308, Aug 18, 2010
    Inside my exhaust extension are holey metal plates bent around a Italian broom handle and fitted inside the tail pipe. They came loose and would make whistling noises not unlike a chirp. Rebending these to fit tighter in the tailpipe cured the birdies. Did this without benefit of an Italian broom handle. Others have reported a similar experience.
     
  5. bquan94545

    bquan94545 Karting

    Aug 8, 2010
    111
    Pinole, ca
    Full Name:
    bruce quan
    #5 bquan94545, Aug 18, 2010
    Dont have an Italian broom stick... wonder if a good ol American will work.
     

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