Brake rotors rusted to hub

[TopNotch]

Today i changed the front brake pads on my "new" Fiero, and discovered that the rotors are rusted to the hub. That's Ok for now, because the rotors are good, but i may have to change them some day. Do any of you have a good way to remove them without damaging the (rare 88) hubs?
The old pads probably had quite a bit of life on them, but it's still good that I changed them, because I found that one caliper bolt was loose.

[scottb]

Heat and a BFH....... if that doesn't work, I should have a 2 jaw puller big enough to pop them off.

[Raydar]

I got my stuck rotors off by smacking the front and/or rear edge of the rotor with a hammer, as I rotated them. (Removing the caliper will give you a place to hit them from the rear.)
You don't have to hit them too hard. Just repeatedly. You will eventually fracture the rust "bond" between the hub and the rotor.
Eventually, they'll come loose. The less of a hurry you are in, the better.

[NoMad]

I have done it with a good penetrating oil or ATF and not hitting the back of the rotor (it can wedge it and lock it up as it starts to free up, ask me how I know....) But a hand sledge on the side of the top hat while rotating. Took a long time but worked.

[MikeMac]

 A quality penetrating oil like Kroil, very expensive but works. Spray it down for a few days before attempting removal.