Harnd brake lines leak

[C1ph3r]

Hey guys. I am finally getting to my disk brake conversion. 1970 C10. Early Classic disk conversion.

I have only replaced hard lines once before and it was a disaster as well. Sold that project before it ever hit the road.

Now here I am again replacing hard lines and I have the same problem with the connections leaking.

It seems all of the connections leak. And that's without ever putting my foot on the pedal. What could I possibly be doing wrong?

I line up the line into the union until I can thread the fitting in by hand, then I tighten it down with a flare nut wrench. They are leaking at 2 of the 3 connection on the distribution block to the front brakes and at the fittings at one of the brake hoses. The ones at the prop valve look fine and at the master. But then again, I havent put them under any pressure so they may very well leak there too.

If the line isn't 100% straight in the fitting would that cause this? Seems that I have to bend and manipulate all the lines a little to get them to line up in the fitting loose enough to thread the fitting by hand. Then I am wondering when i take my hand away if they are getting into some sort of bind.

I am using a hard line kit i got from the Truck Shop. It is made by a company called Fine Lines.

This doesn't seem like rocket surgery. obviously for me it is, 2 vehicles i have attempted this with and both with the same result. Apparently I dont know what the hell I am doing. Cand rebuild suspension, pull motors, replace motors, and do all manor of automotive repair, but hard brake lines. Nope. Cant do it.

Maybe the pre-bent lines i always buy are junk.