How to remove a stuck brake disc
I often see auto forum members ask how to remove a stuck brake disc or brake rotor. Here’s a sure-fire method for getting it off the hub. Shoot Liquid Wrench or PB Blaster rust penetrant (not WD-40) into the openings around the wheel studs. Next, spray around the area where the brake disc meets the hub. Rotate the brake disc so the penetrant runs down between the rotor and hub. Then shoot it again. Walk away for 15-mins. When you return, spray it one more time. Then take a hammer and tap (not pound) all around the flat areas next to the studs. Continue tapping for at least 1-min. all around those flat areas. You’re trying to set up vibrations that’ll break the rust loose. Then tap the outer edge of the brake rotor with a piece of wood. It should pop off.
© 2012 Rick Muscoplat