transmission lines

Discussion in 'Technical' started by Jamie Miles, May 12, 2006.

  1. Jamie Miles

    Jamie Miles the road warrior

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    What size tubing do I need to get to make new lines to go to the trans cooler, 3/8? Will a single flare be ok or do I need to double flare the line like the brake lines? What about the size of the line that goes to the vaccume modulator?
     
    Last edited: May 12, 2006
  2. mean_maverick

    mean_maverick Senior Member

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    ITS EITHER 5/16 OR 3/8 SIZE LINE... ONE OF THE 2 BUT I AM THINKING 3/8. U SHOULD BE ABLE TO GET BY W/ A SINGLE FLARE. AS FOR THE VAC. MODULATOR, PROLLY AROUND 1/4-3/16. HOPE THIS HELPS (y)
     
  3. Tom Laskowski

    Tom Laskowski Member

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    It's 5/16" tubeing, I didn't flare them I used compression fittings.
     
  4. hotrod-daddy

    hotrod-daddy Member

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    5/16 line
     
  5. NAFORD302

    NAFORD302 Member

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    I Tryed Using Brake Line And I Did Not Like It So I Made Braided Lines It Was Alot Easyer Good Luck
     
  6. scooper77515

    scooper77515 No current projects.

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    Braided looks so much better, too. Too bad it is so damned expensive!!!
     
  7. NAFORD302

    NAFORD302 Member

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    We Sell It Where I Work First Time Useing It Boy Was That Fun Not But It Worked Out
     
  8. Jamie Miles

    Jamie Miles the road warrior

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    Yea, brake line is what I plan on using for both the cooler lines and the vaccume modulator. Why did you not like it? I used 3/8 brake line for my fuel line and I found it to be pretty easy to work with.
     
  9. Cleaver

    Cleaver Member

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    If you want to save yourself a headche later - run a short pieces of line from the transmisison to down below the trans pan. Then put a coupling there. If you have to drop the transmission it makes it a whole lot easier to break at the pan and leave the stubs attached to the trans.

    Cleaver
     
  10. scooper77515

    scooper77515 No current projects.

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    Jamie, I think NAFORD was referring to how hard it is to work with the braided line. I have never worked with it, but it seems that keeping it from fraying would be a major hassle.

    I agree that regular brake line is pretty easy to work with once you get "soft hands" and learn to bend the tubing gently enough to not kink it.

    Cleaver, I like the coupling idea...even a quick-release setup, maybe. I am amazed at how many times in a year I have disconnected the trans cooler and a quick release would be nice to prevent all the fluid spills.
     
  11. 1972Grabber

    1972Grabber Always Broke

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    3/8" for the transmission cooler line w/single flare is fine. 5/16" for the vacuum modulator to the intake. Just did this on my 85 Bronco.

    Also, I agree with making the tranny lines a two piece type. Although I have made mine disconnect about 2" rearward of the bellhousing just in case I needed to remove my transmission, the lines would come out with it. (y) Don't want to mess around with those 90 degree fittings on those auto trannys too much.
     
  12. Jamie Miles

    Jamie Miles the road warrior

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    With a 6 cylinder, it's really easier to me to just pull the engine and trans both out if you need to do something to the trans. I usually just unhook the cooler lines up at the trans cooler and strap them to the side of the motor and then lift it all out. 6 cylinder engines are very quick and easy to pull. I can drive my car up to our engine hoist and have the engine and trans sitting on the ground in an hour.
     
  13. NAFORD302

    NAFORD302 Member

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    i made the lines out of brake line and used coulpers and it leaked yes i yoused the correct parts and could not get to stop that is why i used braide lines
     

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