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Need help with brake fitting adapter !

Discussion in 'Brakes' started by 23 T 4sp, Aug 10, 2018.

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  1. 23 T 4sp

    23 T 4sp
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    Ordered Jegs brake fitting adapter -4an male to 7/16 -24 female inverted flare.
    555-100783. This goes under the frame to connect the braided lines to the
    hard line.
    My 1/4" steel brake line will not tighten down with this. Tried other lines and they
    Will not also.

    What am i doing wrong ? Summer will be over before i am done.
     
    #1 23 T 4sp, Aug 10, 2018
  2. old round fart

    old round fart
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    Should you have a 1/4x4an fitting?
     
    #2 old round fart, Aug 10, 2018
  3. 23 T 4sp

    23 T 4sp
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    The brake line nut is 7/16-24, ok the union i bought is a 1/4" (7/16-24).
    The jegs adapter is for a 3/8" line. It does not say that on the package.
    Now back to where can i buy a 1/4" 7/16-24 adapter ?
     
    #3 23 T 4sp, Aug 10, 2018
  4. Indycars

    Indycars
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    Pictures would be worth a couple thousand words. Just two more posts (10) and you can post a pic.You and my boss are very similar!

    What was the name of your first sweetheart on planet earth?:laugh:
     
    #4 Indycars, Aug 10, 2018
  5. HenrysT

    HenrysT
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    What length nut are you using? short or long? maybe this adapter requires a long(er) nut? Try a name brand like Russel or Earls.
     
    #5 HenrysT, Aug 11, 2018
  6. 23 T 4sp

    23 T 4sp
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    image.jpg Here is the adapter next to a 1/4" tee. Would changing to a
    3/8 line be ok when the rest of the system is 1/4" ?
     
    #6 23 T 4sp, Aug 11, 2018
  7. T-Test

    T-Test
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    Would make spongy pedal. Ask Jeg's for the correct T fitting. That one is not correct.
     
    #7 T-Test, Aug 11, 2018
  8. 2old2fast

    2old2fast
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    The size of the brake line has no bearing on whether or not the pedal is spongy.,..,where do you get this stuff ??
     
    #8 2old2fast, Aug 11, 2018
    409T likes this.
  9. 2old2fast

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    That adapter fitting is available in -4an x 3/8-24. FIF as well as 7/16-24 x 1/4.…...
     
    #9 2old2fast, Aug 11, 2018
  10. 23 T 4sp

    23 T 4sp
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    Where is that adapter ? The Jegs tech said they do not have one to replace what i ordered. Dorman makes a brass adapter. I need a 4an to 7/16-24 with a 1/4" line
     
    #10 23 T 4sp, Aug 11, 2018
  11. HenrysT

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    #11 HenrysT, Aug 11, 2018
  12. 23 T 4sp

    23 T 4sp
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    That is what I have. It has a 7/16-24 thread and a 3/16 line flare not a 1/4 line flare.
     
    #12 23 T 4sp, Aug 11, 2018
  13. HenrysT

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    Why are you using 1/4" brake line instead of the more common (at least I think) 3/16" line?
    Well read this, pay attention to illustration #4 , might be better (easier) to change the nut or change it to a female on the line end.
    Federal Hill Trading Company
     
    #13 HenrysT, Aug 11, 2018
  14. 23 T 4sp

    23 T 4sp
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    For some reason the whole car is 1/4" line. Plus its a single cylinder. I tried to
    Go back to a union under the body but could not get it loose with the limited
    space. That line is to long going out under the radiator. So it needs cut and
    flared then reduced to 3/16. The only other thing to do is find 22" rubber line that looks like this. image.jpg
     
    #14 23 T 4sp, Aug 11, 2018
  15. 2old2fast

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    Did you check speedway motors , under an to IFF. ,Earl's -4 to 7/16-24 off. #
    425989548el
     
    #15 2old2fast, Aug 11, 2018
  16. 23 T 4sp

    23 T 4sp
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    I wish it would say if its a 3/16 or 1/4 line. I think they are all the same. 3/16
     
    #16 23 T 4sp, Aug 11, 2018
  17. 2old2fast

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    Standard fitting size for 3/16 is 3/8-24 ..1/4" is 7/16-24
     
    #17 2old2fast, Aug 11, 2018
  18. HenrysT

    HenrysT
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    You have to give us a little help here. Maybe I missed to what caliper or slave cylinder you are trying to mate to? What make/brand of M/C?


    Brake Hose-stainless steel braided
     
    #18 HenrysT, Aug 11, 2018
  19. 23 T 4sp

    23 T 4sp
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    Ok the drum wheel cylinders are off a 61 pontiac 7/16-20 thread. So were the hoses 7/16-24 thread to a 1/4 " hard line. The hoses were to short and wore out.
    Wanted to use same size so used a 4 an hose. Now looking for an adapter.
    Or just start over with a 3 an
     
    #19 23 T 4sp, Aug 11, 2018
  20. 23 T 4sp

    23 T 4sp
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    Finally found an adapter. XRP 402933, -3 male to 7/16"-20
    Worked great until the rear cylinders were frozen then the
    master cylinder leaked. All replaced and working now.
    Thanks for all the tips.
     
    #20 23 T 4sp, Sep 14, 2018
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