Hopefully Last Brake Line Question
 

I know I'm wearing out my welcome on brake line questions so hopefully this'll be the last one. Got all new lines and master cylinder hooked up and all 4 brakes bled beautifully. However, of the 20 connections for my 68 coupe (includes the 4 bleeder screws), I had 6 major leaks. Retightened them and am down to 3 minor leaks. My question is how much more can I retighten the fittings before I tear something up? I know the manuals say definitely don't overtighten but they also say to get tight enough to stop the leak. Have been tightening each time about an 1/8th of a turn to try and stop the leaks.

The easiest thing I can suggest is loosen them, make sure the line is going straight into the fitting (sometimes this means bending the line a little) and while keeping it straight retighten the line and if you are usinf a flare nut wrench bear down on it pretty good.

If this does not work than chances are you have a flaw on the end of the tube or the fitting it attaches too. Either way you will have to take off the line and clean up the mating surface with a piece of emery cloth.