There is a tool made specifically for breaking hoses loose from fittings once they have "cold-set" in place. It was first named for the automobile industry repair trade so the name implies that it is just for radiator hoses. The tool is called a "radiator hose removal tool". (AKA: Booger Hook)
There is a post in one of the threads on this site that shows a picture of the tool. I think it was shown in a "how to" step by step replacement of shaft seal packings. (stuffing box flax seals)
The tool comes in many sizes and has a few special bends in it's shaft with a pointy tip at the end- be careful.
Just about every auto parts store has them as does Walmart and all the hardware stores. The tool is very inexpensive and a handy addition to your on-board tool kit.
Opportunity is missed by most people because it is dressed in overalls and looks like work.
Last edited by capngregg; 06-26-2008 at 12:34 PM.
Reason: Added word