Brake Lines - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-04-2003, 09:26 PM   #1
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Default Brake Lines

My 92, has many a problam, but i knew that when i bought it. I have taken care of the Power steering, and i think i fixed the tranny leak, but most, and i say most of the brake lines are shot, even more than i thought, i had fixed!

I went to the dealer, and you can't buy formed brake lines!!!!! I'm so peeowd. I can fix anything, but forming brake lines is were i draw the line!, any ideas on what i can do? I thought about going to a just yard amd getting some half decent ones!
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Old 06-04-2003, 11:33 PM   #2
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I just replaced the rear brake lines on my '81 f-150 and it was easy. I bought the sections of straight pipe and just bent it by hand to match the curves. As long as you get the right length pipe, don't fold it in half (possibly will break or weaken the line too much), and get the fittings tight, it is a piece of cake. I would personallly stay away from used lines. Brakes are one of the most important things on a car and for a cheap as the lines are it is a bad place to cut corners on.

that'* my .02
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Old 06-05-2003, 01:04 AM   #3
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Yeah as long as you have your old ones off and can look at them to see how they have to be bent its a jiffy with a bending tool... Took me 2 hrs to bend new pipe for my 66 thunderbird and that has more line then on our Bonnes
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Old 06-14-2003, 04:57 AM   #4
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Default Help with Brake Lines

How'* the brake line project coming?

Wish I read this post sooner (I recently moved - Busy, Busy, Busy!), I may be able to help you out.

I had to change out EVERY brake line on my '92 SE, due to severe corrosion.

After researching my options, I decided on purchasing copper-nickel brakeline, and doing all the flaring and bending on-my-on.

I bought an ISO flaring tool on Ebay. The copper-nickel brake line was purchased from England! I could not find the stuff here in the US. This type of brake line is used by Volvo and other European car makers, and is great for corrosion resistance.

Here is a link if you want to learn more: http://automotive.copper.org/brake.html

The main reason I choose this type of brake tubing is that you can bend it very easily with just your fingers! I never even used a bending tool. For real tight bends, I bent the tube over a socket extension (any smooth, round surface wiil do). Also, since the copper-nicket tube is "soft", it is quite easy to flare.

I never flared a brake line in my life before this project, so I too was worried about tackling this task. And the research I had done said that ISO flares are much more difficult to form than double flares. But I formed 16 ISO flares to complete the brake project. That was nearly a year ago, and I haven't lost a drop of brake fluid yet, so I guess I did OK!

With that said, I did have to practice with the flaring tool, and I made some real ugly ones at first, but once you get it down, it'* really not that difficult.

I can give you more info and tips if you need them.

Good Luck with your project.
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Old 06-14-2003, 02:01 PM   #5
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Thanks, i haven't started on those brake lines yet, i now have a tranny line leak. The woman that owned this car must have parked on the grass all the time, cause every line is bad.

I'm going to take some time off the Bonney, so i can start putting my Trans Am back together, but when i get ready i'll give you a shout.
Thanks again

Glen K
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