Any Tips, Tricks, Old School Methods, etc. to loosen stubborn brake line fittings? Options

[914rrr]

Working on my brakes and installing new soft lines in the rear. Used PB Blaster to baptise both soft line fittings to hard lines that to go the proportioning valve. Re-applied each day for a few days.

Went to remove the drivers side soft line and the fitting rounded off before the hard line snapped of just above the fitting. Had a crummy made in India flare wrench laying around that spread right away and was quickly useless. Tried again with an 11 mm Proto combo wrench on the hard line barrel and a 17 mm Indian flare on the bottom soft line. Thought I was making progress until the line broke off just above the fitting (IMG:style_emoticons/default/headbang.gif)

Now, I have to replace the drivers side hard line that goes on TOP of the proportioning valve, and possibly the other twin line going to the passenger side. How do you remove THAT fitting on top without pulling the engine?

I could barely get an 11 mm stubby combo wrench on it, but have almost zero room to twist it. I'm in need of solutions, ideas, old timer trick, tips if anybody has any.

[rgalla9146]

Ancient brake hoses swell inside.
When this happens that caliper remains pressurised. It's also impossible to bleed.
If you heat the fitting with the hose attached you risk explosion.
Cut the hose off at the fitting.
Hold the steel tube fitting however you can in its present position to prevent
twisting, Turn the old rubber hose end piece off the tube fitting.
If the steel tubing is still in excellent condition with just the end fitting stuck,
heat the fitting only. It will free up easily.
This method is especially useful on 914 rear hoses just below the engine
shelf.
Use a brake adjusting tool and/or a vicegrip to lever the clip off the chassis
mount.