Re: Copper Tubing Fuel Tank
Chances are if you have used large channel locks and squeezed the cap when it was hot you may have gotten the cap out of round, ovalled out.
It will be really hard to get off in that situation.
Don't squeeze the cap and twist and pull. You need a way to evenly push the cap off.
Find yourself a refrigeration, a/c guy with a acetylene turbo torch with a big #11 or bigger tip. If that doesn't get it hot enough nothing will.