Brake rotor removal question; should I use a heat gun?
 

You can use heat gun. not sure how much good it will do though. No big deal if you strip it, just drill head off and then knock rotor off (if you are replacing rotors).

Using eye protection! Take a punch and strike the center of the bolt inside the six sided hole, not on the face of the bolt, rather hard several times. Then take a pointed punch on the face of the bolt outside of the six sided hole on the flat part in the direction that you want the bolt to turn. If you can, have a helper wearing EYE PROTECTION apply moderate torque using the bit in the six sided hole while you strike it around in the loosening direction. It will come out.

Good luck!!!

HM:

Are you working on the rears? You have not said so.

Are you replacing the rotors? Do you have new ones?
If you have new rotors, place a block of wood thru the caliper opening on the inside face of the rotor. Hit the wood with a hammer to knock the rotor to the outside. Turn the rotor a few degrees, hit again. Turn, hit, turn, hit.

Put PB Blaster around the hub flange...wait a few minutes and do what Frank R said.

First, detergent with fine ScotchBrite, then brake cleaner. Do not use anything that contains oily components.

It depends on what type of coating is on the rotors. The rotors we used to get had some sort of light oil coating that needed to be washed off. But, some rotors these days have a rust preventing zinc coating. The ones I last installed said to leave it on.

Brembo says:
Huskyman, you should find out and advise just what type of coating you have.

If it is zinc, this link has some good info. If plain steel with oily surface coating, Frank's advice is good.

Use the brake cleaner on the rotors. Use a wire brush, preferably a wire wheel and drill, on the hub to get the rust off. Then use a light coat of grease on the hub to keep the rust off and to keep the rotor from rusting on the hub in the future. This trick works amazing. I even apply a very thin coat of white lithium grease to the hat of the rotor to keep it from rusting. It works amazing, just dont get any on the part of the rotor where the pads rest.

Install both pads, and one of the pins. Then slide first end of spring under the pin. The 2 short ends of the spring rest on top of the low part of the pads so that the top of the spring is flush with the edge of caliper. Next, press down on the other end of the spring and slide the other pin through the caliper hole and brake pad hole and over the other end of the pin.

HuskyMan, the gray primer on the rotors should be left as-is. Braking will remove the primer from the brake pad contact surface only, and the other surfaces will not rust.

When hammering on rotors to loosen them, it's best to install one lug bolt a few turns to prevent the rotor from flying off.