Well, I was able to get the firing pin sleeve pulled back and disassembled the entire bolt! Thanks to all for the ideas.
FYI, Break cleaner and even PB blaster did not penetrate the joint around the firing pin sleeve. I ended up gripping the firing pin sleeve in my vise -a lowly Bessey from Lowes, I have been drooling over the vises in the other thread- with the jaws padded with hardwood blocks. A stout tap with a rubber mallet and it broke free, with no marks or damage to the parts. The grease had turned into a thick gray colored paste the consistency of almost set concrete. Reassembled and everything works just as it should.
