I am afraid to put very much pressure on the nut and force the line to twist which might break it.
Charlie, just make SURE that guage is free to turn in the dash. Then just do ONE full rotation of the nut whilst turning the capillary tube. Kind of a PITA but will work.
Is there a way to free the line from the nut so I can continue to remove the assembly?
After it is out and with either vice jaw covers or a double folded shop rag put in the vice and GENTLY clamp the adaptor (end) nut with tube in the air. On and off FOAM your penatrating aersol into the top "slot". Gonna have to do for a day or two. Then with rag around the "bulb" try to rotate it with plyers GENTLY!! Did I say GENTLY?!?
Most importently is TAKE your TIME!! Do NOT hurry!!

Ed
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