Quote:

Sounds to me the problem is the lines or the flare fittings in the master.

No sealant will help the problem as the threads don't seal anything the flares do.

If you have to crank them down extremily hard then something is not right.

Are thess the same lines or knew ones. Mild steel or SS. Stainless can be a real pite to seal on a flare sometimes.



These are new lines as purchased from Fine Lines. Mild Steel. When I remove the lines I can see "seat marks" on the copper flare fittings in the master where the line has obviously made contact.

Given that I previously had fluid seeping from the fittings, and could hear air seepage from them, that they are either not seating on the flare fittings correctly, or the flare fittings are not seated all the way in the outlet ports?

I was thinking perhaps some of the small bubbles coming up was aeration of some sort from the fluid.

1970 Super Bee, WM21, 383, auto, FY1, a/c, project! 1971 Chrysler 300 2dr, U-code, console car 1980 Chrysler LeBaron LS Limited coupe 2008 Chrysler Aspen, HEMI 2011 Ram 3500 MegaCab, 6.7