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Old 08-30-2003, 07:31 PM
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Flaring Brakelines

this may be a dumb question but..

i bought a flaring tool kit awhile back and will have to use it soon. the kit didn't come with any instructions. i've been experimenting with it but i can't get the lines to flare properly. i have a clamp for the lines, a pipe-cutter with a fold-out reamer, a tool that looks like a gear puller with a pointed end and some line plugs to keep the line from collapsing.

so, do i clamp the line and flare it with the reamer? and then put in the plugs and flatten the flare? how much line should i let hang out of the clamp?. and, do i have to heat the line a bit to make it more workable?

thanks for any help,

JB

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Old 08-30-2003, 08:17 PM
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The "plugs" are actually the double flare dies, you insert the cut tubing into the holder the depth of the thickness of the large part of the die. Then you tighten down the wingnuts, place the stem part of the die in the tube, then position the clamp part over the die and tighten till the die contacts the metal bars, then remove the die from the tube and tighten the flare into the tube. this will fold over the first step and create a double flare, it takes practice and good brake line stock, the cheap stuff splits or cracks and makes bad flares. good luck.
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Old 08-31-2003, 05:29 AM
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I will expand on what BobCMan said. The dies you have are obviously for different diamete tubing. You want to select the die that fits the snugest into the tubing. Next, you want to ensure the tubing is cut square, which it will be when you use a tubing cutter. Prep the tubing end by reaming out the inside when some metal got squished in slightly through the cutting process (this is what the little arrow shaped blade is for on the side of your tubing cutter). Now for technique : I clamp the long side of the tubing vice in a table vice so the tubing feeds up from the bottom. I lay the die beside the tube and adjust it until the end is level with the base of the dieand then tighten the wing nuts to clamp the tubing in place. Now put the stem of the die into the tube and install the flaring tool for the first flare. Watch the die as you tighten down on the flaring tool, If it starts to c o c k off, back off slightly and make sure your flaring tool stays vertical. You can break the stem on the smaller dies if you are not careful. Tighten the flaring tool until the die is flush with the tubing vice and you have the correct first flare. Remove the die and re install the flaring tool and finish the flare. I wipe an oily rag over the dies and flaring tool tip ocasionaly to keep the metal to metal friction down when I am making many flares.

Trees
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Old 08-31-2003, 08:10 AM
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thanks for the detailed responses, guys.

thx,

JB
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Old 08-31-2003, 01:14 PM
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I can tell Trees has done a lot of double lap flaring - perfect explaination. Even with perfect tube end preparation Iv'e found that sometimes the inverted crimp die want to get out of line a bit. Some tubing is better then others. If there is a visible seam in the inside of the tube used, the die will lean no matter what you do. Good quality tubing is sometimes hard to find at the local auto parts. Most of the pre-flared stuff is real brittle and hard. That makes it tough sometimes to adjust length.

Practice makes perfect <almost>
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Old 09-01-2003, 07:33 PM
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JB if you send me your e-mail address or a fax number I can send you a copy of the instruction sheet from my flairing tool that show everything you've been told. Just send me a PM.
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