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Technical Warped Axle Housing

Discussion in 'The Hokey Ass Message Board' started by PHIL COOPY, Feb 12, 2017.

  1. PHIL COOPY
    Joined: Jul 20, 2016
    Posts: 409

    PHIL COOPY
    Member

    I welded some "C" shaped brackets on my '46 merc rear and caused it to warp some on the ends. The beads go 180 degrees around the housing. Some folks are telling me that if I weld a bead around the back side of these welds it should pull it back and that I can tweak it with successive passed. Anyone have experience with this?
     
  2. oldolds
    Joined: Oct 18, 2010
    Posts: 2,968

    oldolds
    Member

    Search around on here. There is a thread or two about that. It seems that about 50% of the answers say that you can do what you are saying. Some say just heating the area opposite the weld will do it. I never had to try it. That being said give it a try. What you have is damaged already, so you can't hurt it.
     
  3. Johnboy34
    Joined: Jul 12, 2011
    Posts: 1,217

    Johnboy34
    Member
    from Seattle,Wa

    Heat will do it.

     
    bct and Johnny Gee like this.
  4. Hi Phil, a couple of years ago I had the rear axle housing narrowed in my Model A (avatar) by
    C & F Race Cars, Ramsey MN. When they started their work they notified me that the housing was warped from a previous owner welding the brackets for the 4 link. They went ahead and did the work and then straightened the housing by laying 3-5" beads across the housing, each end, to bring the axle back to correct configuration, never knew that could be done, amazed me. They told me that I could dress down the welds if I took my time with my grinder and a bucket of cold water, making sure the housing didn't get hot, took me all afternoon, happy with the results!
     
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  5. Hnstray
    Joined: Aug 23, 2009
    Posts: 11,443

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    Seems to me it stands to reason it can work. Years ago I had a Jeep that a body man, a chassis straightening specialist, did exactly that to straighten a housing that had a slight bend near the outer end.

    The heat concentration of welding apparently shrinks the metal, as is amply demonstrated when welding almost any two pieces together. The thing I am curious to know is whether that shrinkage, when further applied to the opposite side to straighten, changes the overall length of the axle housing enough to matter.

    Ray
     
    Last edited: Feb 13, 2017
    Atwater Mike likes this.
  6. Jalopy Joker
    Joined: Sep 3, 2006
    Posts: 24,918

    Jalopy Joker
    Member

  7. sunbeam
    Joined: Oct 22, 2010
    Posts: 4,849

    sunbeam
    Member

    Welding or heating to the other side will pull it back while putting stress in the metal Heating the whole area where you welded and the other side red hot at the same time should relax the stresses put in by welding.
     
  8. Da Tinman
    Joined: Dec 29, 2005
    Posts: 4,226

    Da Tinman
    Member

    Not enough to matter, a few thousandths at best. I've done a bunch of em that way and had no trouble getting things back together.
     
  9. I'm no engineer, but folks are WAY over concerned about this . Put it together and run the sonofabitch! You think those axle tubes don't bend all over the place under load?
    It's just more hot rod bullshit from armchair builders.
     
    trollst likes this.
  10. Hnstray
    Joined: Aug 23, 2009
    Posts: 11,443

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    It's a smart man who recognizes his own limitations.......;)

    Ray
     
    brigrat likes this.
  11. I'm starting to feel like Tman in another thread... Why doncha just go buy a Volvo?... pussies.
     
    Johnboy34 likes this.
  12. brigrat
    Joined: Nov 9, 2007
    Posts: 5,157

    brigrat
    Member
    from Wa.St.

    "I'm no engineer, but folks are WAY over concerned about this . Put it together and run the sonofabitch! You think those axle tubes don't bend all over the place under load?
    It's just more hot rod bullshit from armchair builders."

    Some, maybe not you, would be very humbled if after you "modified" your rear end housing to have a 4 wheel alignment done..........................................
     
    Atwater Mike likes this.
  13. Atwater Mike
    Joined: May 31, 2002
    Posts: 10,084

    Atwater Mike
    ALLIANCE MEMBER

    Oh, yeah...Years in the frame & wheel business make for few 'surprises'...
     
  14. seb fontana
    Joined: Sep 1, 2005
    Posts: 6,459

    seb fontana
    Member
    from ct

    First laugh of the day!!!!
     
  15. R Pope
    Joined: Jan 23, 2006
    Posts: 3,309

    R Pope
    Member

    I've run several "bent" rear ends. Some from welding, some from overloading. Never had a problem.
     
  16. Pete Eastwood
    Joined: Jul 27, 2011
    Posts: 913

    Pete Eastwood
    Member
    from california

    The tapered housings on early Ford Banjo rearends tend to warp more than straight tube housings.
    If not straightened it will eventually eat the outer bearings & housing ends. Learned this one the hard way.
     
    29AVEE8 likes this.
  17. brigrat
    Joined: Nov 9, 2007
    Posts: 5,157

    brigrat
    Member
    from Wa.St.

    "The tapered housings on early Ford Banjo rearends tend to warp more than straight tube housings.
    If not straightened it will eventually eat the outer bearings & housing ends. Learned this one the hard way."
    I started a thread on this very subject, Banjo rear ends, wanted to know if I needed to build a jig to keep "things" straight most all said the opposite, Banjo Trumpets don't warp like conventional rears when welded on. I will be building a jig.................................
     
  18. Von Dago
    Joined: Feb 13, 2007
    Posts: 504

    Von Dago
    Member
    from New Jersey

    Is that why rear radius rod kits, like Pete & Jakes, have a bracket that is to be welded completely around the housing?
    And do you weld say, an inch or so on one side of the bracket and then the same amount on the other side, switching back and forth as you complete the weld?
    Would that keep warping to a minimum? (Banjo rear or later rear?)
     
  19. rooman
    Joined: Sep 20, 2006
    Posts: 4,050

    rooman
    Member

    This is about the best rebuttal in the thread for Chaz' attitude, from a guy who has very much "Been there and done that".
    I would suggest that the OP pay attention to this rather than some of the other know it all comments.

    Roo
     
  20. PHIL COOPY
    Joined: Jul 20, 2016
    Posts: 409

    PHIL COOPY
    Member

    Well it's off enough the the bearing is tight so I gotta fix it. Remember banjo rear end axle bearings. Keep smokin'.
     

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