978Racing

Hi Everybody,
My 93 Z28 FRONT STEEL Brake lines running from the ABS to the flexible line going to the calipers are shot. I would like the stock pre-bent lines off a 93 or 94 but cannot find them. I tried to fix my originals but double flairing those hard steel lines with new fitting is not working. Leaks badly.
Appreciate any suggestions.
Thanks,
AL

RE AND CHERYL

Screw those hard steel lines, I use the softer lines that are easier to bend and flare. You could also try getting a set of used ones from a junkyard.

978Racing

I may have to go with the softer lines, I can't even find a junkyard that has a 93 or 94 camaro.

respectirocz

i had trouble with a double flaring tool but it was because i wasnt using it properly
they seem simple enough to use, but they're very easy to screw up

please correct me if i'm wrong
as long as its not stainless steel which needs a 37degree single flare i think
the regular steel tubing needs a 45 degree double flare
you just have to make sure you're using the right adapter (i believe the line is 3/16th in diameter), make sure you have enough but not too much of the line sticking out when you use the tool (the adapter seconds as a measuring device for this step) and make sure you clamp down the line tightly

and of course that you're using the right fitting

rngilliland

As far as I know the hard lines are not available from GM. You will need to bend your own or find some good ones at a junkyard. The lines are 3/16" or 5/16" and I am almost positive they use a metric bubble flare not the standard 45 degree double flare.

978Racing

I think your right about it being metric. How do I duplicate the metric bubble??
AL

rngilliland

My service manual for a 94 shows the front brake pipes as 4.76mm. That is 3/16". All front brake pipes use the ISO flare. I belive the ISO flare is also called a metric bubble flare. This is one place to buy the ISO flare tool. http://www.thetoolwarehouse.net/shop/TTW58.html#1144

I'm sure any place you can buy a flare tool can get the ISO flare tool.

If you make your own pipes the nut size is M10 x 1.0

Just as a note my service manual says rear brake pipes use a 45 degree double flare and all other pipes use the ISO flare. I'm not sure if that means all rear brake pipes or just the one from the abs to the flex hose at the rear axle. In any case it doesn't matter as all front flares should be ISO. I just thought it was strange to use two different types of flares on the same car.

978Racing

Thanks alot for the link to the correct flairing tool. I appreciate everyones advice.
AL