Have to replace a brake line - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-10-2009, 05:35 PM   #1
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Default Have to replace a brake line

Remove, measure, cut new line, replace, bleed, am I missing anything? Anything you can tell me that isn't really obvious would be new information. I haven't put much thought into this, I just noticed the leak today.

For "while I'm at it" sort of stuff, does the brake drum assembly have room for human hands? I'd like to replace it since I'll be bleeding the lines anyway and it'* like $5. Is there anything that'* going to make it hard to get air out of the lines? ABS, brake booster, etc.

Interestingly enough, I'm pretty sure holding the brake pedal for a solid 10 minutes at the drive through was the final nail in the coffin.
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Old 04-10-2009, 06:20 PM   #2
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Sounds like you got everything. Just make sure you got all the air out of the lines.
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Old 04-10-2009, 06:31 PM   #3
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Sounds like you got everything. Just make sure you got all the air out of the lines.
I only got a brief look at it so far but it looks like it comes in sections. This is for the rear wheel, it looks like one section going along the length of the car, one curvy section, and one going to the drum. The leak is in the curved section. I'd like to just replace the effected part as a means of building confidence for replacing all the lines, and also because I don't have time for major repairs at the moment.

Also in general...rubber brake hoses and steel brake lines, why do both exist? And should I be using compression fittings or is that considered a hack job?
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Old 04-10-2009, 06:36 PM   #4
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For just a patch job you could cut away the bad part of the steel line and put a rubber brake line in its place. then clamp it down. Personally I don't like to skimp on brakes.
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Old 04-10-2009, 06:39 PM   #5
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For just a patch job you could cut away the bad part of the steel line and put a rubber brake line in its place. then clamp it down. Personally I don't like to skimp on brakes.
Would you just be using rubber in that case because it doesn't even have to be cut quite as accurately? That sounds like a terrible idea. I was just wondering why we have both rubber and steel lines at all on a stock car.
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Old 04-10-2009, 06:41 PM   #6
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The steel lines are for long runs along the body of the car. Rubber lines are used where movement is needed.
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Old 04-10-2009, 06:52 PM   #7
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I really anticipate the primitive early 90s ABS being a problem with bleeding the brakes.....
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Old 04-10-2009, 09:37 PM   #8
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Should I get one of these


if so what size. gotta minimize trips to the store here, I don't have a car to drive lol
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Old 04-10-2009, 09:44 PM   #9
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Those are nice for removing the nuts on brake lines. I honestly can't remember the size needed.
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Old 04-11-2009, 07:28 PM   #10
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Not coming off. Do I have to buy a torch now?
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