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Getting crusty/rusty mufflers off of pipe

Discussion in 'The Garage' started by AJMBLAZER, Mar 27, 2007.

  1. AJMBLAZER

    AJMBLAZER Better to be lucky than good. Premium Member

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    I'm trying to redo the mufflers on Big Ugly. They've been there a while but the pipes are in pretty good shape. They have surface rust but are sound. However one of the mufflers has bad rust by the lip of a seam so I'm taking the opportunity to replace them with some Cherry Bombs that I found that should be a direct replacement.

    However they're on there good and tight and won't wiggle off as I'm pulling on them. I took the clamps off of each end, whacked them with the hammer all over, and doused each end in PB'laster.

    Any thoughts on how to get the mufflers out?
     
  2. slyguy_22

    slyguy_22 1/2 ton status GMOTM Winner

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    Air chissel is the way to go! if u dont have that try a lil propane torch and a good hammer, (becareful with the flame) Good Luck
     
  3. AJMBLAZER

    AJMBLAZER Better to be lucky than good. Premium Member

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    Yeah, not looking to burn myself.

    How much damage would the chisel do to the pipe? I happen to have one of those.:D
     
  4. tomford

    tomford 1/2 ton status Premium Member

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    sawzall... watch out though the exhaust might hit you in the head:doah:

    tom ford
     
  5. AJMBLAZER

    AJMBLAZER Better to be lucky than good. Premium Member

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    I want to save the pipe.
     
  6. 80' 427

    80' 427 1/2 ton status Premium Member

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    My favorite way is to use the oxy ace torch and heat the ring where the clamp was red then before it cools wiggle it back and forth. Can save both the pipe and muffler and your hearing.
     
  7. AJMBLAZER

    AJMBLAZER Better to be lucky than good. Premium Member

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    I'm going to try some heat and then after that the cutting wheel comes out. I'll try and notch the muffler but save the pipe underneath.
     
  8. k30bb468

    k30bb468 1/2 ton status Premium Member

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    If you don't have torches use a grinder on the muffler inlet /outlet , make 2 or 4 cuts where it slips over the pipe that you want to save ,then it should slide right off :D
     
  9. Russell

    Russell LB7 Tahoe Status Premium Member GMOTM Winner

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    I usually cut the pipe with the sawzall right where it comes in and out of the muffler. You can then use a grinder to cut through the ring that is still stuck on the pipes and slide it off. Then just install your new mufflers like normal :)
     
  10. Thunder

    Thunder 3/4 ton status

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    Yup. Easist way i have found too. Doesn't thake a lot of time and leaves plenty of pipe to work with.
    You can even use a hack saw if you dont have a SA or grinder
     
  11. gmc4cw

    gmc4cw 1/2 ton status GMOTM Winner

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    X3 on cutting through the muffler right where the pipe is crushed. you will only lose 1" of pipe, if that.
     
  12. buefchris

    buefchris 1/2 ton status GMOTM Winner

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    BITE THE BULLET....Sawall or hot-wrench!!!
     
  13. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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    Thats the exact method I just did since both my exhaust hangers on the passenger side broke this morning :mad:. So instead of doing the "coat hanger" trick I thought I'd just cut the muffler off. :p: :D :D

    But now I realize that it is HELLA LOUD with no passenger side muffler! :doah: LOL...

    Oh well you know how it goes, fix it later...
     

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