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Old 10-03-2010, 11:30 PM
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J1720
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Default Brake question

I was replacing the flexible brake hoses with stainless steel ones. When I was removing the old flex line from the hard line, the hard line twisted about a 1/4 turn. Do you think this will be ok or should I replace the hard line?

Thanks for any help
Old 10-04-2010, 12:03 AM
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GlenL
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That depends on the length of tube that was twisted. A wrinkly 1/4"? Get a new hardline. 10" with a 1/4 turn in it? You'll be fine.

What I'd look for is any distortion in the tube wall.
Old 10-04-2010, 12:25 AM
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J1720
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It twisted in 1 inch. The line does not look distorted. I think I should replace the line.
Old 10-06-2010, 08:59 AM
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Nobody in the US has this hard pipe. Need to get it from Germany
Old 10-06-2010, 09:45 AM
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GlenL
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Originally Posted by J1720
Nobody in the US has this hard pipe. Need to get it from Germany
You can get new tube bent at a brake shop. The trick would be the fittings. In my observation (not measured) some of the hard line fittings are standard English sizes (E.g., 3/8") and some are metric. Worth a look-see if the part is hard to get or Porsche-priced. And don't forget the magic words "It's off an Audi 5000."
Old 10-06-2010, 04:41 PM
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Leon Speed
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If I were you I would try to twist it back - carefully - when putting on the new brake line, it might be ok.
Old 10-06-2010, 05:08 PM
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J1720
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Thanks for the advice.

I already ordered the part, so I guess I'll wait 3 weeks for it.
Old 10-06-2010, 05:08 PM
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I'm doing the intake reseal now, so that should take me a while.
Old 10-06-2010, 06:15 PM
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jon928se
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Originally Posted by GlenL
You can get new tube bent at a brake shop. The trick would be the fittings. In my observation (not measured) some of the hard line fittings are standard English sizes (E.g., 3/8") and some are metric. Worth a look-see if the part is hard to get or Porsche-priced. And don't forget the magic words "It's off an Audi 5000."
Re- use the old fittings if they clean up OK. If you can find a local supplier you're looking for M10x1. Try here

http://www.cunifer.com/?page=home

Pipe size is 3/16" Never have figured out why even now Brake piipe only seems to be made in imperial sizes.
Old 10-06-2010, 10:19 PM
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Good info. Thank you.
Old 10-07-2010, 11:54 AM
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SteveG
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Just to muddy things a bit. I was told that SS lines are not recommended for street use. The line of course has a rubber inner and the mesh will abraid it and wear out faster that a quality rubber line. If you are tracking it, that is another matter. YMMV.
Old 10-07-2010, 12:00 PM
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Erik N
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Originally Posted by SteveG
Just to muddy things a bit. I was told that SS lines are not recommended for street use. The line of course has a rubber inner and the mesh will abraid it and wear out faster that a quality rubber line. If you are tracking it, that is another matter. YMMV.
Susan Thomas once told me that the reason not to use the braided lines was that they are teflon, and that teflon isn't elastic. So once it stretches, it stays stretched, and is weaker as a result.
Old 10-07-2010, 12:30 PM
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I did the same thing but twisted worst. I cut off the twisted head and put new fitting on. double flare the brake line. It was a streach but it worked.

The old line was rust frozen to the fitting. What you need to do it to remove the caliper from the car, remove the rubber brake line to the caliper by letting the caliper turn and the steel line fixed. Remove the rubber line by fixing the steel head and let the rubber brake line turn.



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