Stupid exhaust question

Mopar Exhaust Systems

  1. pearljam724

    pearljam724 Well-Known Member

    Messages:
    1,260
    Likes Received:
    541
    Joined:
    Oct 14, 2018
    Location:
    U.S.
    Local Time:
    8:12 AM
    Is there a suggested tool or technique that allows easy exhaust dismantling ? The way the exhaust curls up over the rear axle doesn’t allow for easy removal of the complete exhaust. Allowing it to be easier to bang the hell out of the muffler if you want to replace the mufflers for example. I know this is a dump question. But, is there an easier method of pulling joints apart, other than bang away at the mufflers hoping to separate them ?
     
    Last edited: May 7, 2020
  2. Cranky

    Cranky Banned Staff Member FBBO Gold Member

    Messages:
    22,287
    Likes Received:
    19651
    Joined:
    Dec 4, 2009
    Location:
    Pasa-getdown-dena Texas
    Local Time:
    7:12 AM
    Nope lol Use lots of penetrating oil. IF the old style clamps with the rounded U bolt was used, good luck.
     
    • Agree Agree x 2
    • cosgig

      cosgig Well-Known Member

      Messages:
      412
      Likes Received:
      774
      Joined:
      Aug 4, 2008
      Location:
      michigan
      Local Time:
      7:12 AM
      Sawzall the mufflers off close to the body of the muffler, then cut off the remaining flange of the muffler that’s still on the pipe with a cutoff wheel. Or, if you can handle a sawzall alright, make a cut along the pipe and slide it off. If it’s inside the pipe, use the sawzall to cut a couple cuts into the inner pipe without cutting through the outside wall and pull the inner piece out!
       
      • Agree Agree x 1
      • dadsbee

        dadsbee FBBO Gold Member FBBO Gold Member

        Messages:
        8,000
        Likes Received:
        18060
        Joined:
        Jan 29, 2018
        Location:
        Ontario, Canada
        Local Time:
        8:12 AM
        The heat wrench... glow the outers red and start twisting and pulling. But like the guys said, if you don't want to save the mufflers just cut them off and then remove the remaining bits with a cutting torch, cut wheel or chisel.
         
        • Agree Agree x 4
        • Don Frelier

          Don Frelier FBBO Gold Member FBBO Gold Member

          Messages:
          3,156
          Likes Received:
          3466
          Joined:
          Oct 11, 2016
          Location:
          Ionia, NY
          Local Time:
          8:12 AM
          I always used to tighten the clamps just enough to keep the pipe from twisting. Sometimes they would come loose. Now I use a good lap band clamp where possible.
           
          • Agree Agree x 3
          • Like Like x 2
          • pearljam724

            pearljam724 Well-Known Member

            Messages:
            1,260
            Likes Received:
            541
            Joined:
            Oct 14, 2018
            Location:
            U.S.
            Local Time:
            8:12 AM
            That’s probably the easiest way. Problem is, the mufflers are too close to the floor board to use a sawsall. Plus, I have chambered mufflers. Those are stout. Maybe, cut away at the inlet and outlets of the muffler to allow expansion. But, I’m not going to be able to take a 4 inch cut off wheel to the outlets in the direction of the pipes as there isn’t enough room for a 4 inch disk and I don’t want to cut the pipes themselves as they are in excellent condition. I don’t want to deal with bending new pipes, etc.
             
          • Don Frelier

            Don Frelier FBBO Gold Member FBBO Gold Member

            Messages:
            3,156
            Likes Received:
            3466
            Joined:
            Oct 11, 2016
            Location:
            Ionia, NY
            Local Time:
            8:12 AM
            Drop the headpipes and hangars and lower the hole assembly
             
          • pearljam724

            pearljam724 Well-Known Member

            Messages:
            1,260
            Likes Received:
            541
            Joined:
            Oct 14, 2018
            Location:
            U.S.
            Local Time:
            8:12 AM
            Yeah, I was thinking of heating the inlet/outlet then use a large pipe wrench to twist the joints. Then, maybe install a u- bolt clamp several inches away and bang the hell out of the temporary u-bolt clamp with a small 5 pound sledge.
             
            Last edited: May 7, 2020
            • Agree Agree x 1
            • pearljam724

              pearljam724 Well-Known Member

              Messages:
              1,260
              Likes Received:
              541
              Joined:
              Oct 14, 2018
              Location:
              U.S.
              Local Time:
              8:12 AM
              I’ll have to do that as it will allow me a few more inches to cut at the muffler. With the axle bend in the pipe. That bend doesn’t allow the rear to drop a whole lot and my mufflers are pretty close to the rear of the car. Just in front of the axle. But, it should be enough. I have a few ideas. Looking for suggestions, though.
               
            • Demonic

              Demonic Well-Known Member

              Messages:
              1,324
              Likes Received:
              1159
              Joined:
              Jun 5, 2017
              Location:
              Maryland
              Local Time:
              8:12 AM
              I unbolted my headpipes at the manifolds, unbolted the muffler hangers, and dropped it all down. Then sliced my old tailpipes and replaced them. Easy.
               
              • Like Like x 1
              • 493 Mike

                493 Mike FBBO Gold Member FBBO Gold Member

                Messages:
                2,936
                Likes Received:
                3153
                Joined:
                Dec 25, 2011
                Location:
                White Cloud, MI
                Local Time:
                8:12 AM
                When you reassemble, generously coat the inside of the mufflers with antisieze. If you buy the band clamps the pipes won't crush either.
                Mike
                 
                • Agree Agree x 2
                • 68Moparmaniac

                  68Moparmaniac Well-Known Member

                  Messages:
                  1,186
                  Likes Received:
                  2041
                  Joined:
                  Jan 18, 2019
                  Location:
                  Utah
                  Local Time:
                  6:12 AM
                  I found that a Dremel with a bonded 1 1/4 inch cutoff wheel can work wonders to slice outer pipes laterally so you can get some penetrating oil and chisel to it, they give up pretty easily. As recommended above, Anti-seize the joint when you assemble is great advice.
                   
                • Ron H

                  Ron H FBBO Gold Member FBBO Gold Member

                  Messages:
                  3,570
                  Likes Received:
                  3582
                  Joined:
                  Feb 29, 2016
                  Location:
                  WI
                  Local Time:
                  7:12 AM
                  I usually did the chisel & hammer method with some heat to remove mufflers, a lot of elbow grease and scraped fingers with systems having the U-clamps. After cutting the slot every inch or so inserted a large screw driver to separate the pipe. Not the best or easiest; but did the job in the garage or driveway. I removed my couple hundred mile old 2" exhaust system during poly motor rebuild going to headers and 3" by cutting the pipes ahead of the axle and dropping from the manifolds keeping the system intact able to be re-welded with a sleeve thinking of possibly of reusing someday. As it is I'm going to sell it when I get around to it. In any case, having the nifty tools to do this as posted is what I'd a liked to have back when...

                  DSCN1580.JPG
                   
                • Cranky

                  Cranky Banned Staff Member FBBO Gold Member

                  Messages:
                  22,287
                  Likes Received:
                  19651
                  Joined:
                  Dec 4, 2009
                  Location:
                  Pasa-getdown-dena Texas
                  Local Time:
                  7:12 AM
                  I'm still using the danged u-bolt type clamps but do the same as you in tightening them lightly.
                   
                • pearljam724

                  pearljam724 Well-Known Member

                  Messages:
                  1,260
                  Likes Received:
                  541
                  Joined:
                  Oct 14, 2018
                  Location:
                  U.S.
                  Local Time:
                  8:12 AM
                  Mine has U bolts too. My exhaust hangers are welded to them in front of axle. I was hoping to save these mufflers just in case I don’t like the sound of the new ones. I have chambered mufflers. I like the sound. But, they create a lot of drone noise under acceleration at times. I want a good sounding muffler that won’t drown out the cam loping sound at idle. Without the drone vibrations under throttle at times.
                   
                  • Like Like x 1
                  • RJRENTON

                    RJRENTON FBBO Gold Member FBBO Gold Member

                    Messages:
                    1,428
                    Likes Received:
                    1285
                    Joined:
                    Jul 1, 2015
                    Location:
                    South Shores area of Decatur, Illinois
                    Local Time:
                    7:12 AM
                    I concur....anti-sieze works wonders when assembling the system. I use either the Permatex copper (good for 1800° F) or Permatex nickel (good for 2200° F). These materials are available at your favorite auto parts stores or on line. You can also use it on the U-glamp and hangar bolts. Even after a couple of years, after removing the clamps the pipes will twist apart (usually) but the old tried and true Sawzall method or whiz wheel will also work...
                    BOB RENTON
                     
                  • khryslerkid

                    khryslerkid FBBO Gold Member FBBO Gold Member

                    Messages:
                    22,878
                    Likes Received:
                    34770
                    Joined:
                    Mar 10, 2010
                    Location:
                    Hanover, Pennslyvania
                    Local Time:
                    8:12 AM
                    The chisel in the middle is the one that splits the outer pipe off of an inner pipe, saving it.
                    20200510_195218.jpg
                     
                  • MoparLeo

                    MoparLeo NRA PATRON LEVEL LIFE MEMBER FBBO Gold Member

                    Messages:
                    1,105
                    Likes Received:
                    885
                    Joined:
                    Nov 24, 2015
                    Location:
                    Moreno Valley, So California
                    Local Time:
                    5:12 AM
                    You could always just unbolt the rear springs/shocks and drop the rear end down. :lol:
                     
                    • Like Like x 1
                    • pearljam724

                      pearljam724 Well-Known Member

                      Messages:
                      1,260
                      Likes Received:
                      541
                      Joined:
                      Oct 14, 2018
                      Location:
                      U.S.
                      Local Time:
                      8:12 AM
                      That’s a good idea.
                       
                    • Dan64

                      Dan64 FBBO Gold Member FBBO Gold Member

                      Messages:
                      1,043
                      Likes Received:
                      1032
                      Joined:
                      Dec 27, 2018
                      Location:
                      South Jersey
                      Local Time:
                      8:12 AM
                      I'm going to build my next system with v-band clamps to hopefully avoid these hassles in the future.
                       
                      • Like Like x 1
                      1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
                        By continuing to use this site, you are consenting to our use of cookies.