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Projects Fixing Front seamed fenders

Discussion in 'The Hokey Ass Message Board' started by Doug Sonnenberg, Dec 18, 2021.

  1. Doug Sonnenberg
    Joined: Dec 10, 2020
    Posts: 70

    Doug Sonnenberg
    Member

    Do you guys re enforce your 2 piece seamed front fenders? Do you weld down the seam? Or just leave as is if they are in good shape. I have to fix the seam on a section of my front fender on my 29 chrysler roadster but im wondering if i should also put some stitch welds along the inside of the fender the whole length 20211218_173323.jpg
     
    Last edited: Dec 18, 2021
  2. rusty valley
    Joined: Oct 25, 2014
    Posts: 3,410

    rusty valley
    Member

    Ford? I can't think of any 29 model car that has a seam at the front. are you sure that hasnt been "fixed" already
     
  3. Doug Sonnenberg
    Joined: Dec 10, 2020
    Posts: 70

    Doug Sonnenberg
    Member

    Sorry ill edit my post. Its a 29 chrysler roadster
     
  4. oldiron 440
    Joined: Dec 12, 2018
    Posts: 2,951

    oldiron 440
    Member

    I've had luck separating the seam and strating both parts then reattaching them together with the spot welds on the flange.
     
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  5. Doug Sonnenberg
    Joined: Dec 10, 2020
    Posts: 70

    Doug Sonnenberg
    Member

    So its hard to tell on mine but is that how they are normally attached is by spot welding the seam together?
     
  6. indyjps
    Joined: Feb 21, 2007
    Posts: 5,090

    indyjps
    Member

    Most preferable is to cut the seam out and fully weld, metal finish. If you do weld the seam and leave the flanges in place, it needs to be solid, if you just spot weld you'll get enough moisture behind the filler that it will pop over time.
     
  7. BJR
    Joined: Mar 11, 2005
    Posts: 7,746

    BJR
    Member

    After spot welding I have had good luck using paintable seam sealer in the seam.
     
  8. gene-koning
    Joined: Oct 28, 2016
    Posts: 3,008

    gene-koning
    Member

    The seem on one fender was messed up, so I cut it out and welded it together, then metal finished. The other fender still looked good, so I tack welded and seam sealed. 10 years later, the spot welded seem is showing.

    Cut it out and weld it together, then metal finish. Gene
     
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  9. Doug Sonnenberg
    Joined: Dec 10, 2020
    Posts: 70

    Doug Sonnenberg
    Member

    What if i weld the seam solid on the top of the fender and stitch weld the seam under the fender. Then seam seal it all. I like the idea of leaving that flange in there for the extra metal while welding. Im also tossing the idea of welding in a 1/8 or bigger rod along the top seam to have a raised edge look on the fender
     
  10. rusty valley
    Joined: Oct 25, 2014
    Posts: 3,410

    rusty valley
    Member

    If you do it that way, I would grind the flange off after you weld the top
     
  11. Doug Sonnenberg
    Joined: Dec 10, 2020
    Posts: 70

    Doug Sonnenberg
    Member

    You mean grind the flange off from under the fender?
     
  12. pitman
    Joined: May 14, 2006
    Posts: 5,151

    pitman

    Flange adds strength.
    Tacks spaced secure, 4"- 6"?
    Sealants applied to clean metal
    Preserve. ;)
     
  13. goldmountain
    Joined: Jun 12, 2016
    Posts: 3,769

    goldmountain

    Nothing to do with seams, but check out Carter Auto Restyling on Youtube. The guy is doing great work on fenders and he is Canadian.
     
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  14. rusty valley
    Joined: Oct 25, 2014
    Posts: 3,410

    rusty valley
    Member

    Yeah, grind off the bottom flange, and you then could see if your welds look good underneath, and fix em up as required, then finish grind top and bottom like a regular patch. That flange only has the purpose of holding dirt and moisture after you have welded the top, so get rid of it...my thoughts anyway
     

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