Looking to replace my trans cooler lines. Any suggestions?

Discussion in 'The "Juice Box"' started by Gitslashgin, Sep 19, 2010.

  1. Gitslashgin

    Gitslashgin John Doe

    I'm looking at the jegs 60361 th350 cooler line kit and wondering if their adaptors will fit into my transmission. Wondering about sizes and what I should be hunting down to get it right on the money. I need an exact fit, I have about $170 for a new ignition coil and these lines. If you'd help me find the right size that WILL FIT I could really use the help. all this 1/4" x 20 npt stuff has got me goin' insane thinking I'm stupid.

    Thanks,
    Mike the man.
     
  2. BRUCE ROE

    BRUCE ROE Well-Known Member

    All you need is some 5/16" copper tubing, inverted flares (common in the junk yard, etc), some kind of tubing bender, and a good flaring tool. No $170 would be spent here. Bruce Roe
     
  3. CJay

    CJay Supercar owner Staff Member

    Im not sure about the copper. Steel line needs to be used. Copper would be too soft and easily damaged by debris.

    What exactly is wrong with the cooler lines that are in there now? If they're hacked up and damaged, you could just get a pre bent replacement set from Inline Tube.

    If you want to get really trick, you can run Aeroquip FC332 fabric braided lines through the frame rail to an external cooler. I had a thread about how I did mine with part numbers and pictures.
     
  4. Gitslashgin

    Gitslashgin John Doe

    My cooling lines are leaking from inside the fitting, think i bent the lines or something. Are the lines from inline tube flared? Do they have the fittings? That's way better than 114.

    Mike the man.
     
  5. CJay

    CJay Supercar owner Staff Member

    Im not sure I understand what you mean by "they're leaking from inside the fitting". They're leaking at the fitting? If so did you try tightening them up? Your going to need a flare nut crows foot to tighten them up at the trans.

    The inline tube lines are pre flared
     
  6. Gitslashgin

    Gitslashgin John Doe

    I tightened them up and it did nothing. Like if you were looking at the back of the fitting, it's leaking on the inside ring.
     
  7. BRUCE ROE

    BRUCE ROE Well-Known Member

    I had one of those leaks, old fitting into an imported radiator. I didn't feel like spending a lot of time on it, so I put that blue form a gasket inside & outside the actual fitting. Its been OK for years. Bruce Roe
     
  8. tlivingd

    tlivingd BIG BLOCK, THE ANTI PRIUS

    I ran the Aeroquip fittings and FC322 hose and it's sweet.
    though... isn't the coil in the radiator for the trans lines copper or brass?
     
  9. techg8

    techg8 The BS GS

    Best thing I ever did was switch to a B&M supercooler kit.

    AN couplers and braided steel sleeved hose.
     
  10. Gitslashgin

    Gitslashgin John Doe

    That looks just like the lines I posted, but with a cooler and alot of fittings. So, fittings: shaould I stick with my stock ones or get some to go with the stainless lines? Will the line come with fittings on it, if it's flared they wont go on. I'm just so confused. The line from inline tube, does it come with the fittings?

    Miketheman.
     
  11. Steve Craig

    Steve Craig Gold Level Contributor

    Inline pieces are out of the box & a perfect fit. I did this on my own car.
    Fittings already on the lines.
     
  12. CJay

    CJay Supercar owner Staff Member

    What are we trying to do? Just stop a leak or upgrade to something better?
     
  13. Gitslashgin

    Gitslashgin John Doe

    Stop a leak. I ordered some from inline. Thanks again for all your help guys. Really appreciate it.

    Mike the man.
     
  14. odgs455

    odgs455 Well-Known Member

    copper is a good and easy to work with. True it's solfter than steel, but it's not going to baloon or anything... lot's of high pressure gas line (LP or other) are made with copper , holds couple thousands psi... I use copper for brake lines. And the good thing about copper is since it's "soft", than it does crack or get "riped" open if something hits it, it will expand not like steel which will break.
    Try this : take a piece of copper tubing and fold it a couple of times on the same bent, do the same with steel.. you'll see right away which one is gonna break open .
    OEM used steel instead of copper because it's cheaper, look at very old car (1920's 30's) everything is copper from gas lines to brake lines. No concern about cheap stuff at the time.
    As for stainless, I would say that the "sheerness" is about middle between copper at steel , but it has a terrible heat dissipation properties, (copper , and gold are the best heat dissipation metals... with aluminium (not as good)), so in a way you don't benefit from any cooling when the fluid travels in the tube. With copper the tube by itself acts like a mini radiator.
    Olivier
     
  15. BillA

    BillA Well-Known Member

    NAPA sells 5/16" double flared brake line with the fittings installed . A 5' piece runs $9 and is easy to bend. I'll be using that now that I've kinked the original factory lines trying to bend them to mate up to a 200-4R.
     
  16. Gitslashgin

    Gitslashgin John Doe

    So I got the lines from inline tube. They are perfect and fit really well. I had to bend them a bit to fit into my cooler but that's no biggy. HOWEVER, they still leak out of the same spot... So I guess i'll be giving permatex some more cash...

    My beast is up and running :D Nothin' now but cleaning her off and getting gas.

    Mike the man.
     
  17. CJay

    CJay Supercar owner Staff Member

    I could of told you the lines werent going to work. In fact, I think I did tell you. Permatex isnt going to fix it either.

    If you notice where they fit on the transmission, they screw into fittings which are then screwed into the case of the transmission. Between the fitting and the case, there is a washer that acts as a gasket. Thats whats probably leaking. But again, you need to do some sctually diagnostic work proior to just changing parts
     
  18. Gitslashgin

    Gitslashgin John Doe

    It's not leaking from outside of the fittings. It's leaking from the inside, next to the tube. Anyways my lines had been twisted from the rebuild so it's not like I'm just throwing parts at it. It needed the lines. So from what I can tell you're saying it's leaking like the attatched picture on the left side, but it's leaking how it is in the picture on the right side. Gander.

    Thanks,
    Mike the man.
     

    Attached Files:

  19. Briz

    Briz Founders Club Member

    Is it possible that youve over tightened the fittings and squashed the flair to the point of cracking?.Is there a burr or defect on the face of the mounting surface inside the fitting where you put the lines? there must be a reason why to sets of lines did the same thing.
     
  20. Gitslashgin

    Gitslashgin John Doe

    From what I could see, the threads on the interior of the transmission were great. I tightened them to be snug every time. When I was under there last, installing the new lines, I cleaned off the threads and the area around where the lines enter, everything seemed to be in it's rightful place.

    Mike the man.
     

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