I've never had this problem before, but I know others have. I have the
heads loose on my 2.1, but the bad news is that the cylinders are coming
off with the heads. I can get to the little groove around the top to pry
into, and on some the "ears" cast into the cylinder, but nothing I can do
will get them out of heads. Is there a trick I'm overlooking, or should I
just pull them off, compress the rings and reinstall the cylinders?

It's three out of the four, by the way.

Jim