That was my first thought, back here in the rustbelt. If one coated the threads as the system was built. I wonder how well it would do in protecting against corrosion, snapped off bleeders, lines frozen to fittings etc; Would be a good idea to put the teflone behind the flare, between the nut and line as well as on the threads. I might have to get some to try if I ever get far enough along on a project to do brakes again! Still trying to decide if I want to investigate what is still wrong with my shoulder... I know I need to find out eventually if there is really something going on that can be helped, but I sure don't want them poking around on me anymore. I haven't had a "good" day since Friday though. Just like old times, work one day suffer for days after. Since we are now on day 6, I'm figuring I'm prolly screwed. Anyone want an Ambassador convertible? -- Mark Price Morgantown, WV 1969 AMC Rambler, 4.0L, EFI, T-5 2004 Grand Cherokee Laredo, 4.7L, Quadratrac II " I realize that death is inevitable. I just don't want to be around when it happens! " -------------- Original message ---------------------- From: Tom Jennings <tomj@xxxxxxx> > Joe Fulton wrote: > > I know about cautions of teflon tape on fuel lines, but I have been > > using Permatex teflon liquid thread sealant on various engine > > fasteners including those head bolts intruding into a water jacket. > > The uses stated on the bottle include fuel line fittings and brake > > line fittings. Those sound like reasonable applications to me and > > I'm considering using the sealant on the brake line fittings of the > > 65 Rambler. I'll be splicing some brake lines in connection with > > replacing the master cylinder. > > While the fluid seal is done metal to metal at the flare and cone (same > seal principle as an O-ring -- reduce the seal area to near-zero and > even with high lbs/sq/in, with near-zero sq/in the effective pressure is > close to 0) there are other things going on in there. The two cones I > believe have different "slopes" so that the contact area is a very thin > ring. > > Teflon sealant would help prevent the joint from seizing, making it more > maintainable. It would seal out water etc and reduce the contact area in > the threads so corrosion that did get in wouldn't have so much leverage > at removal time. > > _______________________________________________ > Amc-list mailing list > Amc-list@xxxxxxxxxxxx > http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list