Do I have reason to be concerned???

Mopar General Discussions

  1. cudamike13

    cudamike13 cudamike13 FABO Gold Member

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    I got my axles (8 3/4) back from mechanic pressing old tapered bearings off of axle.
    He stated he had to use torch on one and got it very hot to remove ring against bearing.

    Does this look like maybe it is not as strong now that its been so hot?

    I sure would hate to twist an axle!

    IMG_3095.JPG IMG_3098.JPG IMG_3099.JPG IMG_3100.JPG

    What say you, anyone?
     
  2. mopar head

    mopar head Well-Known Member

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    I`d be inclined to polish it up and run it:popcorn:
     
  3. crewchief

    crewchief A & P Mechanic FABO Gold Member

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    Did he quench it afterwards or air cooled it?
     
  4. toolmanmike

    toolmanmike FABO MODERATOR Staff Member FABO Gold Member

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    Get out the hot wrench. He must have been taking the retainer off. Too late now but those can be drilled and split or cut/scored and split with a chisel. No need to turn them blue or melt them off.
     
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    • Jadaharabi

      Jadaharabi FABO Gold Member FABO Gold Member

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      Run it.

      You will twist the splines off the other end of the axle before you will twist that part of it in two.

      By the way whoever did that to your axle I would never let him touch anything of mine again.
       
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      • Treblig

        Treblig Well-Known Member

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        Heating the axle is not the problem................the "cooling off" process is the problem............. oh sorry, did I mention axial warpage??
         
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        • jimjimjimmy

          jimjimjimmy lobsterman FABO Gold Member

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          won' hurt it one bit .
           
        • 67Dart273

          67Dart273 FABO Gold Member FABO Gold Member

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          I would damn sure check it for trueness
           
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          • Treblig

            Treblig Well-Known Member

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            I'm sure everyone knows how to straighten an axle tube???? You heat one side and it straightens out. If you heat one side of an axle it will bend. I'm not saying that's what happened here but you never know????
             
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            • 72bluNblu

              72bluNblu FABO Gold Member FABO Gold Member

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              It was glowing at some point based on those heat marks. Which means it got hot enough to change the hardness. Whether it actually changed the hardness or not is anyone's guess, and will depend on how it cooled. But it's a very real possibility that axle is no longer as strong as it's supposed to be. Whether or not that's a problem for you depends on the application. And whether or not the axle is still straight.
               
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              • el5dart

                el5dart Well-Known Member

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                if your around a machine shop check the rockwell hardness in the affected area and in a non-affected area see if the hardness matches. if you know someone who works in a machine shop you should be able to check for free. only takes less than 5 minutes

                900-331A1.png
                 
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                • mopar head

                  mopar head Well-Known Member

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                  If I was to go to a machine shop, I`d have them chuck it in a lathe and check flange run out. You could test this installed if you have a indicator.
                   
                  Last edited: Aug 14, 2020
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                  • Treblig

                    Treblig Well-Known Member

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                    You could check it with two V-blocks and an indicator, at least within .003??:

                    ievetbmur_1833590.jpg
                     
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                    • mopar head

                      mopar head Well-Known Member

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                      Yep if ya also had a 3rd block to keep thrust axis out of the equation
                       
                    • brian6pac

                      brian6pac Well-Known Member

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                      That is very unfortunate, I could almost bet money it is bent. I have seen it happen before and you really can't get them straight again. If it is warped you might want to call Strange, Mark Williams or someone that makes axles and ask them. If you are .002 out at the axle flange you have to figure it at 14" out from center to see how much run-out you have.
                       
                    • rumblefish360

                      rumblefish360 So close, yet so far away FABO Gold Member

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                      Drdiff.com, new axle set, $300-ish area, green bearings, stronger than stock axles, home run, why waste time and money?
                      Go fetch self a pair.
                       
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                      • el5dart

                        el5dart Well-Known Member

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                        yup 2 v blocks and an indicator would be the best way to check it. not in a lathe. a lathe would involve too much time spent setting it up with a steady rest and would basically be accomplishing the same thing as the v-blocks
                         
                      • RustyRatRod

                        RustyRatRod Lemmie see your b00bs. FABO Gold Member

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                        Never in my life have I used a torch to do that. I've pressed off a crap ton of them too.
                         
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                        • Jadaharabi

                          Jadaharabi FABO Gold Member FABO Gold Member

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                          In the old service manuals they show grinding them down almost to the axial and then taking a chisel and popping them with a hammer to crack them then they slide right off.
                           
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                          • RustyRatRod

                            RustyRatRod Lemmie see your b00bs. FABO Gold Member

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                            Yup. I'm lazy. I've always just pressed them off. They come right off.
                             
                          • Treblig

                            Treblig Well-Known Member

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                            You use a torch when you don't have a press or the proper accessories!!

                            [​IMG]
                             
                          • toolmanmike

                            toolmanmike FABO MODERATOR Staff Member FABO Gold Member

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                            • Daves69

                              Daves69 Well-Known Member

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                              I guess if your really lucky you may just have center bores on the ends you can use to help you check runout.........

                              upload_2020-8-14_17-19-18.png upload_2020-8-14_17-19-44.png
                               
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                              • RustyRatRod

                                RustyRatRod Lemmie see your b00bs. FABO Gold Member

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                                No,I don't use a torch. lol
                                 
                              • teringer

                                teringer FABO Gold Member FABO Gold Member

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                                the sealing surface for the seals looks rough
                                 
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