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Technical Model a rear spring

Discussion in 'The Hokey Ass Message Board' started by Alexanderkustoms55, Jun 3, 2018.

  1. I’m setting up my rear and have a model a rear sprig it’s the standard one (not the high arch one) it has reverse eyes ad is mounted pretty much directly over the axle.. the question is I don’t get much movement maybe 2 inches of travel before it feels like it bottoms out..


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  2. Got any pictures of your set up?
     
  3. Any thoughts on this is this normal for it to feel like it bottoms out


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  4. Sorry not the best pics but hard to get a great shot of it.. it appears that the springs bug is actually hitting the farm after 2” of up and down movement


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  5. fiftyv8
    Joined: Mar 11, 2007
    Posts: 5,394

    fiftyv8
    Member
    from CO & WA

    Got any more pic's from a little further back.
    I'd like to see more of the surrounding if it is possible, then I could give you a much better assessment.
     
  6. Man I just read what I wrote damn son... so what I was trying to say is the spring hits the frame as it travels up and down with only about 2 inch’s of travel before it feels like it bottoms out


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  7. 2935ford
    Joined: Jan 6, 2006
    Posts: 3,843

    2935ford
    Member

    I kinda went through the same thing.
    I just replaced my pack with a new pack from Posie's.....cured my problem.
     
  8. Ok I was thinking that but doing standard eyelet instead of reversed


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  9. 1946caddy
    Joined: Dec 18, 2013
    Posts: 2,078

    1946caddy
    Member
    from washington

    Isn't your spring shackle resting against your rear cross member in the first picture?
     
  10. AVater
    Joined: Dec 9, 2008
    Posts: 3,155

    AVater
    ALLIANCE MEMBER
    1. Connecticut HAMB'ers

    Can't see well but also check the length of your second leaf.
     
  11. F&J
    Joined: Apr 5, 2007
    Posts: 13,222

    F&J
    Member

    Spring is new...so what most of us builders would do is take the spring out, then take the main leaf out of the pack and use a hydraulic press to make a non-reversed eye spring leaf .

    It's easy. Take the main leaf and lay it on it's side on the floor, then use a marker to trace the curve it has now. Then use the hydraulic press every couple inches, a bit at a time, to make it the same curve as the marks on the floor, but in the opposite direction.

    .

    .
     
  12. Model A Gomez
    Joined: Aug 26, 2006
    Posts: 1,695

    Model A Gomez
    Member

    Spring looks awfully flat to me, appears that you are running 40-48 brakes so I assume you are running a banjo rearend. Are you sure the banjo isn't hitting the center of the spring ? I've used several stock rear springs and never had one that flat, they are all about the same except for the number of leaves. I attached a picture of a stock spring with several leaves removed that is under my coupe, didn't have a good picture with the rearend in place. I did find a picture before I put the body back on and you can see the clearance with no weight, also a picture of the car mocked up to show the ride height. Spring compresses quite a bit under weight. Put a picture of my avatar in too, stock spring with a couple of leaves removed and frame stepped like the coupe I'm building now.
     

    Attached Files:

    Last edited: Jun 3, 2018
  13. I like what your saying, and yup I’m running a banjo rear end. Definitely not hitting the axle the spring is hitting the out side portion of the frame.. I would like to go to a standard eye instead of the reversed I don’t quite understand how to reverse it without buying anew one.. the picture you sent looks like a standard eye spring pack


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  14. I was thinks by about taking out the second longest spring and see if I get more play


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  15. fiftyv8
    Joined: Mar 11, 2007
    Posts: 5,394

    fiftyv8
    Member
    from CO & WA

    Something ain't right, but until we get a better feel for what is going on with better pic's we will all be guessing and possibly wasting our time...
     
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  16. pitman
    Joined: May 14, 2006
    Posts: 5,148

    pitman

    F&J's post (and a HAMB SEARCH on reversing spring eyes) and you've got all you need. Just rebend it gradually. (Assuming you have an A spring!)
     
  17. F&J
    Joined: Apr 5, 2007
    Posts: 13,222

    F&J
    Member

    I first thought it was some kind of fairly flat spring?...but now I cannot tell if the spring crossmember (in one pic), might be turning upwards like an Model "A" crossmember? I agree with fiftyv8 that a better pic of the complete spring is needed.

    I don't think I'd like the job of reversing an "A" spring main leaf. I feel it would be difficult to match the curve in the hoop center of those? But if it is like a 32-48 "flatter" spring, then yes, it is easy
     
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  18. phill
    Joined: Jul 22, 2003
    Posts: 51

    phill
    Member

    In picture 2 is the old shock mount tube right through to the other side of the crossmember?
    If so then you may find that the second leaf is bottoming out on that.
    Phill.
     
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  19. Yes the shock mount tube runs through the crossmember.. do you think if I cut that out I will get more travel


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  20. alchemy
    Joined: Sep 27, 2002
    Posts: 20,525

    alchemy
    Member

    Do ya think if you cut the obstruction out you will have more room? Uh, yea.

    But, it looks like you have a really flat spring, compared to most A springs. Somebody built that spring like that for some reason. Did you order it special?

    You talk about removing leaves. This will NOT give you more room. It will make the spring even flatter. Worse problem.
     
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  21. fiftyv8
    Joined: Mar 11, 2007
    Posts: 5,394

    fiftyv8
    Member
    from CO & WA

    Still the better pic's are required, but if those are what you call shock bracket holes go all the way thru, then you must realise that the spring will hit them.
    My view is that going by the diameter of the hole in those rods in what you call shock brackets, I think they were actually mounting points for coil over shocks in a past life.
    You got the best view of the situation, take stock of your predicament and think it thru.
     
  22. #91043105....says it's a "medium arch spring"...10 inch arch. I think I'd go with a stock model A spring or a new repro in original dimensions. I just sold a fair spring at the last swap meet for $15....had a little wear on top of the leafs but usable.
     
  23. Awesome that you guys.. I definitely have a lot of great valuable information.. I will update next weekend


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