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Projects Drilled backing plates

Discussion in 'Traditional Hot Rods' started by 40Ford!!, Nov 7, 2013.

  1. daddio211
    Joined: Aug 26, 2008
    Posts: 5,998

    daddio211
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  2. daddio211
    Joined: Aug 26, 2008
    Posts: 5,998

    daddio211
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  3. daddio211
    Joined: Aug 26, 2008
    Posts: 5,998

    daddio211
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  4. seabeecmc
    Joined: Jan 28, 2005
    Posts: 991

    seabeecmc
    ALLIANCE MEMBER

    We usually drill and tap a fourth hole in the wheel cylinder for balance. Welding the extra hole closed is now a new option. Thanks, Ron
     

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  5. daddio211
    Joined: Aug 26, 2008
    Posts: 5,998

    daddio211
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  6. daddio211
    Joined: Aug 26, 2008
    Posts: 5,998

    daddio211
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    Moving on to the second BP now.

    On the first one I just roughly trimmed the outside, placed it over and cut holes for the adjusters, and "felt it" into position before taping it down.

    1384743022320.jpg

    Second time around I learned it's much easier to cut the center out. The roll on the lower 1/2 of the backing plates is too small for the top/inner row of holes.

    1384743146991.jpg

    I marked them off with a blue Sharpie so I don't bother punching them. Had to file the punches on the first plate, I think you can see that in the first "finished" photo.

    Again, thanks 28A for the template! I'll have about 8 hours in the project but I think it'll be worth it.

    My '27 T Roadster build: http://www.jalopyjournal.com/forum/showthread.php?t= 734383
     
  7. The holes are all 1/4" the layout was just trial and error. First I found the center and marked a spot at 12, 3, 6, & 9. Then I came up with 1 9/16 distance between those holes .... Give or take. The other holes ended up 1/2" apart center to center. I just eye balled the layout in pencil then when it all looked good to me i went over them with a silver Sharpe. Center punched em and then a pilot hole and finished with 1/4" it was about 6 hours when all was said and done. Thanks for all the comments.
     

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  8. Here is another pic
     

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  9. I don't think that will be an issue. They are still real solid. If you make bigger holes and a lot more maybe that could affect the integrity?
     
  10. Quite a few of the pilot hole bits but they were cheap Chinese so no big deal. I need to count the holes.
     
  11. Not a problem. Yours turned out great. I tried to use the template but just couldn't get the printer to give me the correct size.
     
  12. 19-c
    Joined: Jun 15, 2009
    Posts: 1,071

    19-c
    Member

    no offense but I did the holes thing now i wish I had not. It has become the red steel wheels and wide whites for 2013. I am actually investing in a company that makes weld in plugs in various sizes for all of those who drilled holes in every damn thing they own haha
     
  13. titus
    Joined: Dec 6, 2003
    Posts: 5,054

    titus
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    Did these while i was at work one day, then had them plated.

    Yours look good.

    JEFF
     

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  14. Kato Kings
    Joined: Aug 22, 2006
    Posts: 673

    Kato Kings
    Member
    from Minnesota

    Jeff those are awesome. Here are some 53-56 f250's I did.
     

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  15. need louvers ?
    Joined: Nov 20, 2008
    Posts: 12,906

    need louvers ?
    Member

    I did some awhile back for my modified project. Not perfect, but few things in life actually are...
     

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  16. black 62
    Joined: Jul 12, 2012
    Posts: 1,895

    black 62
    Member
    from arkansas

    why do it ? do you drive so hard you need the ventilation ?
     
  17. need louvers ?
    Joined: Nov 20, 2008
    Posts: 12,906

    need louvers ?
    Member

    Honestly, in one of the few instances I would admit to, it's because it looks soooo damn nice on an early type front end. Any cooling effect would be helpful, but of dubious value.
     
  18. sophisto79
    Joined: Apr 21, 2010
    Posts: 189

    sophisto79
    Member

    I think it looks good! Perfection is overrated. I like that those were hand drilled and thus, "flawed." How long did that take?
     
  19. Kevin Lee
    Joined: Nov 12, 2001
    Posts: 7,410

    Kevin Lee
    Super Moderator
    Staff Member

    Nope. It just looks cool.

    When have hot rods ever really been about need?
     
  20. Lowbuckboz
    Joined: Apr 2, 2008
    Posts: 499

    Lowbuckboz
    Member

    When have hot rods ever really been about need?[/QUOTE]

    Winner!!


    Posted using the Full Custom H.A.M.B. App!
     
  21. need louvers ?
    Joined: Nov 20, 2008
    Posts: 12,906

    need louvers ?
    Member


    Exactly what I was shooting for. They tool about a half a day to lay out and drill on my drill press.
     
  22. sophisto79
    Joined: Apr 21, 2010
    Posts: 189

    sophisto79
    Member

    Awesome! Not bad for half a days work. I was thinking something like this for mine stolen from my National Resophonic guitars, the pattern is too kool.

    ImageUploadedByH.A.M.B.1385598372.003371.jpg
     
  23. aplayer
    Joined: Dec 2, 2006
    Posts: 148

    aplayer
    Member

    Anyone ever drill the Wilson Welding backing plates? I've found a few pics of drilled Wilsons, but not many. Looking for pics and layout ideas.
     
  24. need louvers ?
    Joined: Nov 20, 2008
    Posts: 12,906

    need louvers ?
    Member

    Not quite done yet, but these are going on the "Bucket of Ugly" with a set of fine finned Buick drums pretty quickly.
     

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  25. Define "need". :D
     
  26. ChefMike
    Joined: Dec 16, 2011
    Posts: 647

    ChefMike
    ALLIANCE MEMBER

    well done ! did you make a cardboard pattern when laying out the holes
     
  27. need louvers ?
    Joined: Nov 20, 2008
    Posts: 12,906

    need louvers ?
    Member


    If you are asking me, no. I lay my backing plates on the bench, take my combination square, pick a raise or depressed area I want to highlight, find it's center and draw a line at that depth based on the outside edge of the backing plate. Then, using this as a centerline I work out hole sizes, spacing and centerlines with a pair dividers. I then center punch the holes, drill them with a starting bit, then unibit my way to happiness.

    After reading through that a few times it sounds more complicated than it really is. Maybe when I do the other side for this one I can remember to slow down and take some pictures.
     

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