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I'm now trying to replace the rear cross-over brake line..............
Can anybody give me a good way to unscrew the copper fittings. I have a proper wrench, but they just won't budge. Should I heat them?
Haven't any takers on my question yet, so I'm trying again to see if someone can give me some advise. I don't want to mutilate the brake line brass fittings because in doing so I may be mutilating the adapter as well and if I do that I'll have to replace the whole line that goes into the master cylinder. This is a body-on restoration and as you know refitting a brake, or a gas line for that matter, is for at least for me impossible.
Any ideas on how mechanically I can loosen the brass fittings would be appreciated - already I've put PB Blaster on it.
Does PB Blaster soak into the threads when they are pointed down? Does it like have a cappilary action? The heat you're suggesting is with some sort of a small torch?
Thanks, Richard
the fittings are pretty soft on those lines, but the distribution blocks should hold up to some abuse if you need to resort to anything drastic. That rear crossover line is probably one of the easiest to actually get to, so it might be easier to just cut it off and use a good socket on it(with a large crescent wrench on the block to keep it steady. Steel brake lines are dirt cheap anyway, and autozone will loan you the flare tools and benders if you need to change fittings. A good set of line wrenches would help a lot here also, but if the fitting is really frozen or already rounded off it might be too late for that.
Thanks, it sounds effective to cut the line and use a good socket wrench with vice grips or something like it to hold the distribution valve. If my PB blaster and some careful heat doesn't work I'll proceed as you suggest. I already have a cross over Line to replace it with.
Thanks, Richard