brake line flaring

[cmcfaul]

I stripped the brake line nut while trying to get it off to replace the flexible hose (caliper side). I want to cut it off, re flare the hose and connect with new hardware.

I can buy a break line flarer. What's the 11 mm screw that I stripped and have to replace called (Connects the hard line to the flexible line).

Or, do I try to get the other side off and replace the hard line from the caliper to the flexible line. I fear stripping that as well (I bought the line wrenches and still stripped the top one)

Thanks,

Chris

89 Carrera.

[fanaudical]

Not sure on the fitting.

These use the ISO bubble flare.

I have had good luck making replacement hard lines by starting with pre-made straight sections from NAPA. Just bend and cut / reflare one end.

[BK911]

I would replace the line with a new one.
Find one close to original length and bend as required.
No flaring necessary.
Soak with penetrating fluid.
Hit with heat.
Cut line to use 6 point socket.

[KTL]

Cheap split bar flaring tools are garbage. They make horrible flares, even with plenty of practice and experience using them.

Agreed it’s a simple solution to get a pre-flared section of brake line from the parts store. If you don’t want to cut and flare, just bend it to use up the extra length of tubing. The sockets in your tool box are excellent bending “fixtures” to avoid kinking the tubing

For future reference, the tube nuts on our old cars are M10x1.0 threads

[emac911]

You might be surprised and find a replacement hardline is not too expensive. I have made many brake lines and it can be a tedious job. For 20-$30 for a new line it may not be worth the time and effort of fabbing one.

[cmpski]

I bought a flair kit from Eastwood. It makes a perfect flair for our cars. It has the ability to make several kinds of flairs. I also buy fuel lines from Napa. If I end up with a bad line I cut them and keep any good end fittings.
Chris

https://www.eastwood.com/professional-brake-tubing-flaring-tool.html?gclid=CjwKCAiAleOeBhBdEiwAfgmXf3ZKCjJLGt JtL5BhPn2j2SbU9D2YbAMZv8ZQKFPNxSNz6xEDI9pKfBoCvO4Q AvD_BwE&wcid=18669317643&wickedid=639466471841&wickedsource=google&wv=4

[cmcfaul]

Thanks, I think Pelican sells the lines pre bent. Gonna go that route. Hope its not too much of a PITA getting the old line off. It's always the last one;-/

Any tricks to the trade in preventing all the brake fluid from running out during the process.

Thanks

Chris
89 Carrera

[SCadaddle]

Originally Posted by cmcfaul

Thanks, I think Pelican sells the lines pre bent. Gonna go that route. Hope its not too much of a PITA getting the old line off. It's always the last one;-/

Any tricks to the trade in preventing all the brake fluid from running out during the process.

Thanks

Chris
89 Carrera

1) Find a way to hold the brake pedal down a bit while you are working.

2) The variety pack of vacuum line rubber plugs at your local auto parts store work great for temporarily capping off the ends of the lines; the small ones fit over the hard lines and the larger ones you can push the top of them into the large end of the flexible lines give them a twist or two and the threads will hold them in just fine.

[cmcfaul]

I got it off using vicegrips. Bottom one came loose easy. I am going to order a new line.

Thanks everyone.

Chris

[BK911]

Originally Posted by cmcfaul

Thanks, I think Pelican sells the lines pre bent. Gonna go that route. Hope its not too much of a PITA getting the old line off. It's always the last one;-/

Any tricks to the trade in preventing all the brake fluid from running out during the process.

Thanks

Chris
89 Carrera

Sometimes a 6" pipe wrench is needed to get a stripped brake line removed.
Good luck!

[emac911]

As mentioned, penetrating lube, a little heat, brake flare wrench and go easy. Sometimes you have to resort to vice grips. A high quality set of vice grip brand vice grips are way better than the garbage at HF. Dont go cheap on vice grips, as they are usually your last lifeline!

I wouldnt worry too much about losing a little fluid, as you are going to have to bled them again. Work fast! Vac plugs do work well and having a set (even from HF) are worth a spot in the tool drawer. You got this!

[emac911]

One other tip.....when you go to put in the last fitting, the line will probably need to be tweaked a bit for the fitting to line up and not cross thread. So if you cant get it to start easy, stop and look carefully at the line and adjust it to drop in straight. Dont let all the fluid running down your arm concern you, its good for you!

[cmcfaul]

No one has the OEM version of the line. $80 for Porsche version :-(

[emac911]

I see some (89 carrera) on pelican. Cohline brand? Are they out of stock?

https://www.pelicanparts.com/catalog/SuperCat/0602/POR_0602_BRKHOS_pg2.htm

[cmcfaul]

Yes. Out of stock at all places

[emac911]

That stinks.

- search for a used one
- Bend your own
- if the threads are still good on yours, then the vice grip may become the removal tool for the future

Remove it and take it to the auto parts store, they usually have different lengths, may or may not use the same wrench size, but threads are the same. Buy two. Having a spare means you won't need it.

[thetorch]

If you know the (straight) length but don't want to build your own line (flare, buy the fittings, etc.), belmetric.com has metric lines in fixed lengths, often in stock. Then just bend it. Easy peasy.

https://belmetric.com/4-75mm-brake-line-ends-m10x1-0-ends-bubble-flare-preassembled-tubing/?

[emac911]

Originally Posted by thetorch

If you know the (straight) length but don't want to build your own line (flare, buy the fittings, etc.), belmetric.com has metric lines in fixed lengths, often in stock. Then just bend it. Easy peasy.

https://belmetric.com/4-75mm-brake-line-ends-m10x1-0-ends-bubble-flare-preassembled-tubing/?

I have bought tons of stuff from them and never knew they had brake lines! Great site.