Brake line leaking

[67speedfreak]

Whats up with these brake lines.
I just had all new lines made from right stuff and they are leaking.
We had the same problem with the one we did our selves.

We are using DOT 5 could this be the problem?
Anyone had any similar problems?

Thanks,
Brian

[67speedfreak]

Leaks are numerous places.
SSBC junction block. Hard line to flex adapters.

[Steve68]

is it bad flareing???

[dipren443]

Whats up with these brake lines.
I just had all new lines made from right stuff and they are leaking.
We had the same problem with the one we did our selves.

We are using DOT 5 could this be the problem?
Anyone had any similar problems?

Thanks,
Brian

Not much to add other than try and loosen the fittings and retighten. This may help seat the flares.

Also, DOT 5 or DOT 5.1?? If it is DOT 5, get it out of there ASAP. DOT 5 is not hygroscopic, i.e., if any moisture gets in the system, it will end up at the lowest point in the system and not be absorped into the system. DOT 5 is commonly referred to as "Show Car" brake fluid due to its inability to damage paint. Its performance virtues however are minimal.

Nick

[vintageracer]

Are your brake lines made with Tin Bundy tubing (OEM) or Stainless Steel tubing? Stainless steel is VERY hard and the line connections and must be VERY tight to seal and not leak!

[6'9"Witha69]

^^Yes. SS lines are a PITA. I use OEM lines and clear coat them if I want them to look good.

[dhutton]

Probably a little late but if they are stainless fittings make sure you use anti-seize on the threads.

Don

[Bad Bowtie]

Make sure your flares are correct for what fittings you use remember 37 degree flare for AN's
BB

[MonzaRacer]

also you can wrap a teflon tape "string" behind the flare, then you can wrap teflon tape around the threaded fitting too. This helps them seal.
I also agree if you used silicone dot 5 brake fluid do not drive it.
your brakes cant operate efficiently with it on a daily or weekly schedule, all you need is one of the performance brake fluids and keep it flushed during rigours use or at least once a year.
also silicone will dry out or harden most new corrosion compliant seals.
Those seals are designed to move over irregularities and slight corrosion and not leak.

[redfire69]

You should avoid using teflon tape (the leak will return). Brake lines seal at the flare not the threads; like someone else posted just back off and retighten. If you're using stainless lines you're bound to have a leak or two when first bleeding... Ron

[67speedfreak]

Thanks guys . I think I got it fixed.

Changes a couple fitting and just kept retighting.

Brian