crossover pipe

Discussion in 'Touring Models' started by kraut, Aug 8, 2011.

  1. kraut

    kraut Account Removed

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    Bear with me everyone. I'm new to the forum and I'm very new to Twin Cam Harleys. I've only had Shovels.
    I have a 1999 FLHTC with the cam gear upgrade and the 510G cam upgrade. It also has the Screaming Eagle 95 CI kit.
    The previous owner had punched out the factory mufflers a little. I punched them out more and removed the crossover pipe and welded up the holes and now I'm getting a squeaking sound that sounds like it's coming from the exhaust pipes. On another section of this forum I found out that it might be the rubber muffler mounts. If it's not the mounts, what could it be?
     
  2. kemo

    kemo R.I.P

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    99% that the rubber mounts are a bit dry and need a little grease kraut.
    Ken
     
  3. kraut

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    Okay, I'll get some grease on them tomorrow and I'll post how it helped, or not. Thanks!
     
  4. glider

    glider Veteran Member

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  5. kraut

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    Gotcha!!! Thanks!!!
     
  6. Breeze3at

    Breeze3at Well-Known Member

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    If you eliminated the pipe that went from the rear cylinder to right muffler, you caused a big restriction with the 90° turn right out of the rear port to the left muffler. It's possible that you're getting a little leak at the exh. gasket, or a tiny pinhole where you welded the pipe. If it still squeaks after lubing the hangers, you might want to look there.
     
  7. kraut

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    Actually, it was making the squeaking noise before I removed the crossover but after I punched out the mufflers. I'm hoping that by removing the mufflers I somehow put them back so that they now squeak. As far as a restriction at the 90* turn, I made sure that I kept the same diameter in the turn. I guess that could be but before I removed the crossover the right pipe was making the noise. Also, I was a welder for 38 years so, hopefully, I haven't gotten so rusty as to leave a pinhole but I guess it's possible, huh?
     
  8. Breeze3at

    Breeze3at Well-Known Member

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    But not likely on your own pipes. :) Welding has always fascinated me, but I've never had much opportunity to practice. I have ox/acy. tanks, but my efforts are pretty "lumpy". :(
     
  9. kraut

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    The silicone grease did not cure the problem. So, I removed both mufflers and guess what? No squeaking. Then I gutted the mufflers and the noise is gone. Now I have to figure a way to get some back pressure. Or do I?