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Hot Rods help with frame line/thy frame fittings

Discussion in 'The Hokey Ass Message Board' started by model A hooligan, Mar 31, 2015.

  1. So I'm running the standard brake line stuff.the 3/16 or whatever that an very common, my issue is with the front.I was running that hard line,with a male fitting,into my rubber line (female) well now my frame is boxed NOW and need a thru the frame fitting.ivenlooked and all the parts places tell me I can't do it.that their thru the frame fittings arnt for rubber line (one side is flared for hard line the other is for an steel braded) they say they have no adapters.

    Can get some help fellas? Part numbers,pictures,etc? I'm sure there's a way
     
  2. DDDenny
    Joined: Feb 6, 2015
    Posts: 22,468

    DDDenny
    Member
    from oregon

    Show some pics of what you have, we may have a solution, there aren't many combinations that have not been dealt with before.
    Google Art Morrison tech story on thru frame fitting issues regarding trapped air and bleeding .
    It may have been in their catalog, which I no longer have.
    Also check out Godman high performance, they have a good selection of fittings and adapters.
     
  3. paul55
    Joined: Dec 1, 2010
    Posts: 3,491

    paul55
    Member
    from michigan

    2" hole saw for access and room for line wrench or tab under frame.
     
  4. fortynut
    Joined: Jul 16, 2008
    Posts: 1,038

    fortynut
    Member

    Just run the brake line over the frame, and do it neatly, and add a tab for the rubber end with the clip. Or, go high tech and get some stainless lines. Then if you don't like the look, shrink wrap them in black, or use some spiral cut black plastic. Best thing about stainless lines are they don't balloon out and cause the pressure to drop. Which is a good thang. Otherwise, continue your search. Perhaps someone has hit this same wall and tooled up a solution, made a few extra and is selling them to cover the cost. If it was me, I'd study it from the point of view of an adapter into an adapter, AN male into AN female with the correct male 3/8 female. Clunky perhaps but doable. Or have some machined up and be the 'go to guy' for parts to solve this problem. Lots of CNC machines out there watering at the mouth to create miracles.
     
  5. woodiewagon46
    Joined: Mar 14, 2013
    Posts: 2,530

    woodiewagon46
    Member
    from New York

    Give Godman Hi Performance a call 800-456-2369. They have any fitting you need and have never let me down. Their catalog is great, ask for one. It does sound odd though trying to go from 37 degree AN to rubber flex but if anyone can get you the fitting Godman can.
     
  6. 56don
    Joined: Dec 11, 2005
    Posts: 10,332

    56don
    Member

    I went through the same dilemma when working on my truck. I tried and tried to get it to work my way but no one makes adapters for what I thought would be a common problem. I finally gave up and used AN braided steel hoses and a through the frame bulkhead from Speedway. If you are set on rubber hoses you probably will have to run a tab under the frame to connect the hard lines to the hoses and fix it there.
     
  7. mgtstumpy
    Joined: Jul 20, 2006
    Posts: 9,279

    mgtstumpy
    Member

    I used a 45 degree S/S banjo fitting with banjo bolt to attach hard line to through frame fitting. Not legal here to use 37 degree AN banjo to hardline, must be double flared. We can use S/S flexible brake line to through frame though. All must be DOT approved.
     
  8. linechaser32
    Joined: Apr 8, 2006
    Posts: 1,624

    linechaser32
    Member
    from Iowa

    AN fittings arnt allowed in Australia? What about aircraft?
     
  9. designs that work
    Joined: Aug 29, 2005
    Posts: 411

    designs that work
    Member

    I had same problem finally made a special drill bit. Used a 3/8' bolt to go thru the frame. Made them and have not leaked in seven years. Go to my roadster album and look on page three. PM for more info. Correction 1/2" bolt.
     
    Last edited: Mar 31, 2015
  10. HOTRODPRIMER
    Joined: Jan 3, 2003
    Posts: 64,779

    HOTRODPRIMER
    ALLIANCE MEMBER

    Use the traditional style,,just go under the frame. HRP
     
  11. Dennis D
    Joined: May 2, 2009
    Posts: 857

    Dennis D
    Member

    Cut the AN fitting off of it. Drill and tap for 1/8 pipe threads and use whatever fitting you need to get to where you are going. If you need a pic of mine, I will take one and post it up. HTH, Dennis D
     
  12. Can't go under the frame.wishbones will hit it and on top of the frame will look like **** IMO.
     
  13. mgtstumpy
    Joined: Jul 20, 2006
    Posts: 9,279

    mgtstumpy
    Member

    Without waffling on, NO. National Code of Practice (NCOP) stipulates:-
    2.4 COMPONENT STANDARDS
    ...All hydraulic pipes must be double flared in accordance with SAE J5336 or equivalent and
    appropriate flare connections must be used
    Hydraulic pipes must not be welded, brazed or silver soldered.
    Hydraulic brake hoses must comply with SAE J1401 or equivalent. Flexible hoses complying
    with ADR 7/... or ADR 42/ 04, including braided brake hoses, are also acceptable...

    A 45 degree double flare will hold 3K psi, a single 37 degree AN flare (Ferrule & nut) is good for 7K psi. Many cars these day use OEM metric bubble flares, 1/2 a double flare..
     
  14. fortynut
    Joined: Jul 16, 2008
    Posts: 1,038

    fortynut
    Member

    This one got me out of bed. I know I offered some suggestions earlier that skirt the question of 'period correct' because I have authority issues and can prove it. But, I got to thinking about this, and it occurs to me that through the frame fitting, if they only fit stainless lines, can't be period correct for the teens, twenties, thirties, forties, fifties, and sixties and that pretty much expends the time frame for what this site is about. So, to the statement that 'over the frame will look like ****'; what period Hot Rod are you building? Certainly not anything traditional that I know of, and I don't mean to be an *** about it. Because, otherwise, not to put too fine a point on it, you're building something 'high-tec', or you're (god fordid and I laugh here because these guys kept the hobby alive through some lean times) building a dreaded 'street rod'. Yeah, I know this seems silly, but what I'm saying is obvious enough to point out.
     
    alchemy and 31Vicky with a hemi like this.
  15. Happydaze
    Joined: Aug 21, 2009
    Posts: 2,381

    Happydaze
    ALLIANCE MEMBER

    I'm confused now. This statement suggests that the AN flare will withstand a higher pressure which in braking terms must presumably be better. And yet in Australia the AN stuff isn't allowed for street use. Seems somewhat counter intuitive, or am i missing something?

    Chris
     
  16. Fortynut-you are being ridiculous and your comment will not get a rise out of me
     
  17. woodiewagon46
    Joined: Mar 14, 2013
    Posts: 2,530

    woodiewagon46
    Member
    from New York

    What is the thread size and description of the rubber hose fitting you are trying to adapt to the steel fitting?
     
  18. Dennis D
    Joined: May 2, 2009
    Posts: 857

    Dennis D
    Member

    Here is a pic of what I did on my car. D
     

    Attached Files:

  19. Dennis is that an an adapter to 3/16 pipe thread?whatever it is ,that's what I want to do!
     
  20. Woodie-like I mentioned above,I have just the standard ruber brake likes (female) and the standard flared hard lines that every american car uses.frame wasn't boxed in that section before so the flared hard line just went into the ruber hose thru the frame
     
  21. bobby_Socks
    Joined: Apr 12, 2006
    Posts: 938

    bobby_Socks
    Member
    from ǑǃƕǑ

    Not sure if your frame is painted and I am putting this out there with the thoughts that it is not. I would take a piece of black pipe of the correct size that can be tapped inside for 1/8 inch pipe thread, drill my hole through the frame rails insert tubing then weld it up, grind it smooth with the frame and tap both sides and use an 1/8 inch male to male adapter on the rubber hose, or if possible swap out your rubber hose for one with 1/8 inch male thread.
     
  22. mgtstumpy
    Joined: Jul 20, 2006
    Posts: 9,279

    mgtstumpy
    Member

    Looks like a conventional 1/8" NPT to 3/8" 24 adapter attached to that through frame fitting. It allows the use of hydraulic brake hose with male fitting to inverted flare?
    Brake fittings.JPG
     
  23. Dennis D
    Joined: May 2, 2009
    Posts: 857

    Dennis D
    Member

     
  24. langy
    Joined: Apr 27, 2006
    Posts: 5,730

    langy
    Member Emeritus

    I'm using thru the frame fittings with rubber hoses, I made my own thru the frame fittings but you could cut off the male 3AN and tap out and seal with a copper washer.

    [​IMG]

    [​IMG]
     
  25. woodiewagon46
    Joined: Mar 14, 2013
    Posts: 2,530

    woodiewagon46
    Member
    from New York

    Go to the Godman web site and look at part no. 2826 or 2828. They are 3/16" or 1/4" OEM to -03 or -04 AN male. You will need a -03 or -04 female coupling from your thru frame fitting to the above fittings. I think Dennis has your answer though.
     
    model A hooligan likes this.
  26. alchemy
    Joined: Sep 27, 2002
    Posts: 22,719

    alchemy
    Member

    Actually, YOU are being ridiculous. Fortynut is all right.

    How about you whittle up something like Langy did above? Running a mill and lathe is very traditional.
     
  27. Alchemy-whats your proboem? Keep the negative ******** out of this.like kindergarden
     
  28. lowrd
    Joined: Oct 9, 2007
    Posts: 418

    lowrd
    Member

    I picked up the fittings through Earls. They are still around aren't they?
     
  29. DDDenny
    Joined: Feb 6, 2015
    Posts: 22,468

    DDDenny
    Member
    from oregon

    True, but ---
    Back when I was doing it 10 hrs. a day for 30 years "traditional" was not the word I used.
     

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