Looking for words of wisdom, suggestions for removal of coupling from shaft as I am swapping out old dripless stuffing box for new and having real issues with removing coupling. It must have been off about 8-10 years ago prior to my taking ownership. Have gone through videos, got a professional to coach me. Lots of penetrating oil, 4 bolts attached and after an hour or more moved it about 1/16 - 1/8th of inch, or I really hope I moved it at least that far. I have read differing opinions on heat, also concerned with confined space and I have not uncovered boat (winter storage on the hard) as yet due to a couple of leaks requiring repair. Any thoughts helpful. Thanks, David, Ceilidh II