thanks DoubleVision...I'll try the oven cleaner for sure. I'm not so sure about the aluminum paint on the alternator, though...my buddy put a crate motor in his truck and painted all of his brackets with the silver aluminum paint and it rubs off when you touch it? I'm not sure if it was a surface prep problem or possibly the brand of paint? I may just buy a new alternator lol Probably not but...I wonder if there's a way to oven clean the old alternator and cover the vent holes?? Thanks again for the info DoubleVision..