copper zinc brake line

[chevyart]

anyone have any good or bad reviews of copper zinc brake lines. my buddy just did his new built drag truck with all new lines and had around 7 leaky connections. all the parts(blocks,calipers hoses MC etc) were all new and he still had all these leaks. double flares were used everywhere. any ideas? thanks Art

[cjbiagi]

Are you making your own flares? It may be a problem with the flaring tool. I would try another one, you can rent these for free from many auto parts stores.

[chevyart]

thanks cj. yes, my buddy is making all his own flares(his buddy, a pro mechanic is actually doing them). i suspect he is tightening the tool too much on the second part of the flare process. i just dont know anything about this material other than that it could be a little soft. Art

[283vega]

I would think soft would be good. A hard line would be brittle and possibly tear / split when flaring.

[cjbiagi]

I know it is much harder to flare stainless lines, the ones you are using are fine, I suspect it's something with the tool.

[chevyart]

i agree with cj. just too many leaks to be a coincidence. thanks 283 and CJ Art

[Wizeguyrc]

If you are using this type of flare tool, check the tang and surface on the round mandrel. The tang could be bent, the flare surface could be messed up, or a combination of both.