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Technical help with flaring brake lines

Discussion in 'The Hokey Ass Message Board' started by belair_54, Aug 21, 2018.

  1. belair_54
    Joined: Aug 17, 2010
    Posts: 85

    belair_54
    Member
    from australia

    Hi everyone I am in the process of making up some brake lines for my 60 El camino for the first time.
    I came across this neat old flaring tool in great condition the only problem I do not know how far out the brake line needs to stick out past the die the kit is complete apart from instruction manual. There is no gauge or anything i can see that indicates how far tube needs to extend past die.
    I got an old brake line and guessed the distance the flare came out good but want to be accurate.
    If anyone can help I would appreciate it, I am thinking of using copper nickel lines and will need to use 1/4" and 3/16" diameter lines.
    Is it a good idea to lightly chamfer inside and outside of tube and dip it in brake fluid before flaring? Any other other tips for flaring lines?
     

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  2. Happydaze
    Joined: Aug 21, 2009
    Posts: 2,381

    Happydaze
    ALLIANCE MEMBER

    I've used a few flaring tools over the years. I can't recall one where the end of the tube isn't sighted flush with the end of the die.

    The tool pictured look to me like it'll only produce single flares though, but I could be wrong.

    Sounds like you've mastered the operation already.

    Chris
     
    54vicky and Bandit Billy like this.
  3. 56premiere
    Joined: Mar 8, 2011
    Posts: 1,445

    56premiere
    Member
    from oregon

    That don't look like double flare to me , but I have never seen one made like yours. My double flare old cornwell starts about 1/8 out for start of first push.
     
  4. wandi harry
    Joined: Jul 19, 2008
    Posts: 348

    wandi harry
    Member

    Here an image of one that I flogged of the net
    Looks like a Meco, used one years ago . Was a quality aussie brand when we used to manufacture stuff.
    Just cant remember exactly how.
    Will do a double flair
    The dies don't have a rebate on the bottom of them do they?


    [​IMG]
     
  5. Clean the end of the tube baking shure it’s flat
    Debur the inside of the tube
    A little brake fluid makes the flaring job easier
    On a regular flaring tool the line would stick out of the holding fixture 1/2 the thickness of the die.
    Make sure you have the fitting in the line before flaring

    9E5CA80C-D069-4BE9-AAC2-BE9DEF096A13.jpeg
    This is how you set the line up in a “ regular “ flaring tool
    4F17E9B4-B848-45E3-BF93-129A6809BF3A.jpeg
    This is what you flair should look like
     

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  6. Silverplate
    Joined: Mar 4, 2011
    Posts: 242

    Silverplate
    Member

    I have always found making flares hit or miss. I recently talked the owner of the collection of cars I maintain into purchasing the two hundred dollar flaring tool from Eastwood. It's awesome, makes a perfect double flare every time in less than a minute. It's certainly a tool that far exceeds its expectations.
     
    Bowtie Coupe, Blue One and texkbc like this.
  7. Mr48chev
    Joined: Dec 28, 2007
    Posts: 36,009

    Mr48chev
    ALLIANCE MEMBER

    First thing is to do some figuring out if you can do a double flair with it.
    Second is to practice a bit until you feel you have got a good handle on doing it right most every time. The flair should look like what Vanenplas showed in that the end you fold in to make the double flair should reach but not go past the bottom of the fair.
    Have a sharp cutting wheel on your tube cutter so you get a good clean cut without compressing the tube by cranking the cutter down too much. That is a mistake a lot of guys make and don't realize it.
    Debur the tube in and out before you flair it. Eastwood sells a nice deburring tool but a plumbing or hvac supply house should have decent ones locally.

    Last but not least remember to put the tube nut on the tube and in the correct direction before you make the flair.
     
  8. 54vicky
    Joined: Dec 13, 2011
    Posts: 1,599

    54vicky
    Member

    I always had the line even with the first step on die do debur inside for sure worked for me over 40 years and 7-8 hundred double flares your results may vary
     
    VANDENPLAS likes this.
  9. OLDSMAN
    Joined: Jul 20, 2006
    Posts: 2,422

    OLDSMAN
    BANNED

    That depends on the diameter of the tube. A double flare kit has a part that you insert into the tube and you use the step on that piece to set the tube in the vice part
     
  10. TagMan
    Joined: Dec 12, 2002
    Posts: 6,364

    TagMan
    ALLIANCE MEMBER

    One other thing I learned years ago, was NOT to crank the cone down, but to back off on it when you're just about ready to torque on it in forming the final flare. Install the line and do the final tightening of the fitting and let that do the forming. Never had a leak doing it that way, as well as following the suggestions given above.
     
    VANDENPLAS and 55 Ford Gasser like this.
  11. belair_54
    Joined: Aug 17, 2010
    Posts: 85

    belair_54
    Member
    from australia

    Hi wandiharry this is the exact kit I have it does double flares
     
  12. belair_54
    Joined: Aug 17, 2010
    Posts: 85

    belair_54
    Member
    from australia

    Thanks 54 Vicky will try this looks about the right distance
     

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