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Old 08-17-2018, 07:32 AM
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Forming Brake Lines with NiCopp

Hello Folks,

I will be installing some new brake lines shortly. I have the tubing and all of my bending/flaring tubing tools ready, but this is the first time I've worked with a coil of NiCopp, as opposed to sticks of straight steel tubing.

I'm big on neatness and appearance, so I'm concerned about how nice and straight a line I can achieve after un-coiling the NiCopp.

Should I invest in a tubing straightener? Or is patience and determination enough to create a nice straight line out of NiCopp?

Thanks in advance!

Cheers, Ken in SSF CA

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Old 08-17-2018, 08:39 AM
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I was able to satisfy myself straightening 3/16" by hand. A coil of 3/8 might be much more challenging but I can't say. I bought my 3/8 in sticks.

John

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kbuhagiar (08-17-2018)
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Old 08-17-2018, 09:17 AM
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Get the straightener. You'll do the best job, fewer to no do-overs!
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Old 08-17-2018, 09:41 AM
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You can improvise with two boards.. place the tubing between the boards and roll back and forth and with patience the tube will be straight or straight enough..

Sam
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Old 08-17-2018, 02:09 PM
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Quote:
Originally Posted by kbuhagiar View Post
I'm big on neatness and appearance, so I'm concerned about how nice and straight a line I can achieve after un-coiling the NiCopp.
i'm a straight line guy myself for this reason. every brake line install i've seen with coil stock looked like grandma's saggy you-know-whats hanging there
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Old 08-17-2018, 07:19 PM
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You can borrow mine, I'll be at the Goodguys show next weekend in Pleasanton. You can ship it back to me when your done.

Keith
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kbuhagiar (08-17-2018)
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Old 08-17-2018, 07:52 PM
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Go to home depot/etc and get some pvc piping around 1/2" inside diameter(for 3/8). 10 feet is all you need.

You need to bend like the first 4" to get it started. From there it can be fed through slowly unraveling the coil into the pipe. What comes out the other end is pretty straight. You can then run it through easily 3 or 4 more times. If you want it straighter step down to a pipe slightly larger then the diameter of your tubing and passing it through a few times to end up with a very straight piece of tubing for under $20.
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Old 08-17-2018, 09:37 PM
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Quote:
Originally Posted by blwn31 View Post
You can borrow mine, I'll be at the Goodguys show next weekend in Pleasanton. You can ship it back to me when your done.

Keith
Keith,

Thanks for the offer; unfortunately I won't be able to make Goodguys.

I think I'm just going to buy one, I'm sure I'll get a lot of use out of it. Plus: New tool!

Cheers,
Ken in SSF CA
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Old 08-20-2018, 07:34 AM
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Quote:
Originally Posted by ogre View Post
i'm a straight line guy myself for this reason. every brake line install i've seen with coil stock looked like grandma's saggy you-know-whats hanging there

Advance Auto Parts has it in straight sticks, up to 60". I needed a small piece to replace a leaky line on my car and saw the display they had. So I bought a steel and nickel-copper one. It bent easily enough and I used the copper one.


But in general when I see wavy copper brake lines on a nice car, it looks like a-double-s. Lots guys who have never made brake lines before jump on the band wagon and use it. Shops will use it since it comes in a 25' roll and is cheap and fast for them to fab up. To me, if you have to spend time straightening it out, it totally negates the expected advantage it supposedly had.
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