Bleading new brakes...LEAKS AWAY!

[Prime Lord]

So I just started to bleed the brakes....and I'm having some problems. I had to use SEVERAL brake line adaptors to get this whole thing right. Now, I've got two leaks. The first is coming out of the Maximum Motorsports 3-2 port adaptor T. The bottom line that feeds that front caliper. and the other is at the manual proportioning valve where the line goes INTO the valve. Whenever I put pressure to the system, it just oozes fluid. What can I use to seal this up??

I've included a few pictures. The leaks are on the MALE threads of the purple brake adaptors that have been highlighted. The one near the M/C isn't bad...it just is damp. The one on the proportioning valve is like a river.

 

[TheUser]

I would say some ARP Thread Sealer would do the trick. You can buy it from summit, or have autozone order it for you. You might check the auto stores, but I don't think I've ever seen it in stock at an auto parts store.

The ARP thread sealer is supposed to hold up to 10,000 psi, which is quite a bit more than your car should be pushing; I believe my truck pushes 3000psi.

LINK: Summit Part Number: ARP-100-9904. I know the tube is small, but it doesn't take much; I've had mine for over two years and still have plenty left. It's nice to have around.

If you have to have the vehicle right now and find or wait for the ARP sealer, I guess maybe teflon tape?

 

[Mustang5L5]

I think brake fluid would eat the teflon tape. Quick way to test is put some on a peice of tape and see if it holds.

 

[NOSNotch]

not sure if the lines your having problems with are new lines or if you did any cutting or whatever but are both lines flared at the end?

 

[old_blue]

My first guess as well would be to ask you if you flared any of the lines and they weren't flared properly. Some might have an inverted flare.

 

[2000xp8]

I'll assume that because he used adapters he didn't have a cut and flare kit available.

If that's the case, rent or borrow one, and eliminate the adapters, you aren't the first to have trouble with them and you won't be the last.

Oh, and practice on spare brake line, don't go straight to the real ones, you can land up with some really short brake lines if you do. I speak from experience.

 

[RBRANDX]

I'll assume that because he used adapters he didn't have a cut and flare kit available.

If that's the case, rent or borrow one, and eliminate the adapters, you aren't the first to have trouble with them and you won't be the last.

Oh, and practice on spare brake line, don't go straight to the real ones, you can land up with some really short brake lines if you do. I speak from experience.

+1 I had to learn the hard way as well. It is well worth the time and effort to flare the lines and eliminate the adaptors.

 

[Prime Lord]

I was afraid someone would say that. All the flares line up....and in fact, the reason for some of the adapters is to make the flaring work. On the porportioning valve for example, the lines have an inverted flare but the valve needs a bubble flare. Thats why the adaptor is there. same thing on that drivers side front line. I bought a whole new line and ran it and of course, supid auto parts store only has things in inverted flare. So I had to convert that to bubble so put it in the adaptor.

Ugh....back to the drawing board.