I need to reseal the fuel line union (joint from hard line to flex line in engine bay) as it was broken loose during engine removal. I have tried everything I can think of to break this joint loose. Now it looks like I will end up having to replace the hard line to finish the job. Is this joint "left hand threads??" or is it just VERY tight? I don't want to damage the flex line as it is almost $200 to replace. Any ideas?