I got three out of four connections for the two hoses in the engine bay free. The fourth, pictured below, does not want to break free. The small nut would rather strip and the hard fuel line would rather twist. I've put mild heat on it (small butane torch so as not to catch anything on fire), lots of penetrant, melted a candle on the hot part, nothing works. What next? Also, do I need to replace the hard line that kinked and how difficult is that?

 

I soak them with Kroil and let it sit. If they just won't come off I get the old handy dremmel out and start cutting the hose crimp off and remove the hose that way.

 

Shazam at the same time.

get the dremel with a cut off wheel,
and cut the hose collar then turn the collar 180 degrees and cut it again,
then stick a screw driver into the cut and twist it,
this will open the collar, a few back and forths and the collar should come free
then with a razor blade cut the hose off since you have the other end free it will be easy to rebuild the line then slide it onto the one line that you cant remove and then set your clamp.
The kinked line may be able to be straightened a little bit by gently twisting the collar nut the opposite way.
Otherwise I wouldnt worry about it.

 

Thanks, guys. Just checked these. I've already removed the whole hard line to the FD. I put the smaller nut in a vise and wrench on the big nut and it still wouldn't come apart. New one courtesy of Roger is heading over from Germany.

 

I`ve had good luck using crows foot wrenches on an extension. Changes the angle of attack and gives you a little more ooomph