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Old 06-25-2014, 10:39 PM   #1
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Issues swapping brake lines

I'm working on upgrading to stainless lines. For the life of me i cannot get the hard line loose from the stock lines

Any tips?
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Old 06-25-2014, 11:29 PM   #2
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I'm working on upgrading to stainless lines. For the life of me i cannot get the hard line loose from the stock lines

Any tips?
It's a pain in the ass because of the undercoating on the nut, make sure you use flare wrench and penetrating lube. and hold that stock line and bracket stable.

One side of my car took like 15 minutes of careful blows to wrench.
Never put it in brake video but it was an issue.
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Old 06-26-2014, 07:56 AM   #3
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Yea it was a bitch to loosen it. I sprayed WD40 multiple times and waited. Then used a vice grip to hold the metal part of stock line whilst loosening the nut with flare wrench. And prayed hard I don't strip the nut. It came loose in the end, but took abit of force, more than I expected.
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Old 06-26-2014, 10:58 AM   #4
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The most important part is using a proper flare nut wrench, not a normal open ended wrench!
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Old 06-26-2014, 06:24 PM   #5
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The most important part is using a proper flare nut wrench, not a normal open ended wrench!
Ahh I don't own any, thought I could get away with normal open ended. What size do I need to pick up, if you know? Rather buy 1 good one than a full cheap set if possible.
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Old 06-26-2014, 08:24 PM   #6
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The chances of rounding off the nut are much higher with a normal open ended wrench than the proper wrench. I don't know what size, but you can easily put a normal open ended wrench on one of the nuts on the car to figure that out.
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Old 06-27-2014, 12:13 AM   #7
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Ahh I don't own any, thought I could get away with normal open ended. What size do I need to pick up, if you know? Rather buy 1 good one than a full cheap set if possible.
10mm, if my memory serves me correctly.
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Old 06-27-2014, 02:18 AM   #8
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Originally Posted by Jericon View Post
I'm working on upgrading to stainless lines. For the life of me i cannot get the hard line loose from the stock lines

Any tips?
Get that undercoating off of the nut, and you'll be able to get it off.
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Old 06-27-2014, 04:47 PM   #9
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These were a total PITA to change on mine and my friends' cars. By the last car, the method I did was as follows:

1. PB blaster and tap the bolts every 5 min for 40-60 minutes.
2. Use two vice grips to loosen.
...
3. Profit

Forget the flare wrench, as that started stripping the head of the nut (which is why we went to vice grips). Just make sure your vice grips are on effin tight and are flush with the nut and check against stripping the head as you try. If its sliding, tighten the vice grips more and try again.
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Old 06-27-2014, 10:28 PM   #10
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Carefully use a torch, to heat the nut without burning anything else.

they come right off.


mine were rounding off even with a flare nut wrench, after heating even though the nuts were partially rounded they came right off.
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Old 06-28-2014, 02:28 PM   #11
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^^ I had to heat mine too, just be sure to FULLY flush all the old break fluid out if you torch anything in the braking system.
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