brake line repair - Page 2 - 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 07-27-2006, 09:53 AM   #11
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I just though of another question. If I do not remove the fittings from the very ends, and just cut out a section, what do I use to join the two flare nut fittings that will be on both ends, since the unions are not recommended?
When i get home today ill try to remeber to ask my dad. cuz hes the one that helped me with doing my lines...
Cool. You said you replaced ALL your lines from end to end?
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Old 07-27-2006, 09:54 AM   #12
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I just though of another question. If I do not remove the fittings from the very ends, and just cut out a section, what do I use to join the two flare nut fittings that will be on both ends, since the unions are not recommended?
When i get home today ill try to remeber to ask my dad. cuz hes the one that helped me with doing my lines...
Cool. You said you replaced ALL your lines from end to end?
i replaced a 2 foot section for now.. on the back left line... near the back..
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Old 07-27-2006, 09:59 AM   #13
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Brake line sections, complete with flares and nuts on both ends are available in a number of lengths, up to 60" I believe, at your local parts store. They should also have a flare tool (I don't know if they lend them or not) that you can buy to make the flared ends.
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Old 07-27-2006, 02:29 PM   #14
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Brake line sections, complete with flares and nuts on both ends are available in a number of lengths, up to 60" I believe, at your local parts store. They should also have a flare tool (I don't know if they lend them or not) that you can buy to make the flared ends.
I have a 60" section with the flared ends and fittings, but if I cut an end of the line on the car I'll have to put a fitting on that and flare it, and I don't know what to use to join two nut fittings.
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Old 07-27-2006, 05:12 PM   #15
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I have not worked with the bubble flare, but for the double flare, you just use a double flare union at each end of the repair piece. Cut the pipe, slip on the nut, form the double flare, attach union, attach repair piece. Same on the other end. You need to think ahead on where to cut because you need room to bend the old line enough to work the flaring tool - short runs are hard to bend without kinking. Don't forget to add the distance for the unions too. The unions need to be the right ones for the flare style you are using. A double flare seals on the concave surface you form on the end of the pipe and mates with a matching convex sealing surface in each side of the union. Give some thought on re-using line clamps too, to keep the new line tightly attached and out of harm'* way.
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Old 07-27-2006, 05:24 PM   #16
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Nicely put, Bill.
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Old 07-27-2006, 08:57 PM   #17
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Thanks Bill. I'll look for those double flare unions. I have every tool except the flaring tool. I can't justify buying it though for one small section so hopefully I'll find a place that will rent it to me for a few hours. I have thought about where I will cut it, and I think it will work out fine. I'll hope for the best.
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