Advice on brake lines

[David Lee]

Originally Posted by CMcAllister

37 degree inverted double flare is used with regular steel or stainless tube with AN fittings and tube/sleeve connections.

45 degree is the common automotive SAE inverted hardware.

AN stuff will be more money, but is worth it IMO.

i was not aware that stainless could take a double flair

[CMcAllister]

Originally Posted by David Lee

i was not aware that stainless could take a double flair

I've done some nitrous plumbing in SS. It can be double flared if it is annealed. Requires a good flaring tool. Some people feel it doesn't need to be double flared for brake lines, although I don't agree. Probably overkill for most unless you want to polish it for a show car look.

I haven't used it in a long time. I prefer the old style "Bundyflex" zinc coated steel. Harder than the CuNi and green coated stuff. But not so much so that it is miserable to work.

If appearances matter, it can be cleaned up with some fine scotch brite and WD40 to a nice satin look.

[David Lee]

Originally Posted by CMcAllister

I've done some nitrous plumbing in SS. It can be double flared if it is annealed. Requires a good flaring tool. Some people feel it doesn't need to be double flared for brake lines, although I don't agree. Probably overkill for most unless you want to polish it for a show car look.

I haven't used it in a long time. I prefer the old style "Bundyflex" zinc coated steel. Harder than the CuNi and green coated stuff. But not so much so that it is miserable to work.

If appearances matter, it can be cleaned up with some fine scotch brite and WD40 to a nice satin look.

i am using the bundyflex.

[Paul Precht]

Brake lines are a pleasure with this.

[David Lee]

Originally Posted by Paul Precht

Brake lines are a pleasure with this.

have one on its way

[CMcAllister]

Originally Posted by David Lee

have one on its way

37 degree tooling is available by itself if you're going that route. More cost effective to get the whole kit - 3/16 to 1/2.

[Dave Gantz]

I've been using an old Imperial, similar to this one: https://www.ebay.com/itm/18551982762...Cclp%3A2047675
I just learned something this past year.
I was having a hard time stopping a new double flare from leaking. After googling, I found out if you don't quite finish the second flare, when you tighten the flare nut, it will "finish" itself. I.E. the flare will finish forming as you tighten it against the seat. Presto! After making several flares, including making a new line when it got too short, using this technique, it sealed on the first try.
Maybe this is common info, but I thought I'd mention it.