Miriam, at what phase did you use Evapo-rust? Did you brush it on, soak the machine bottom section, or ?? Does it penetrate, or just neutralize surface rust and turn it to black (iron phosphate?) Look forward to your tutorial. I've got a 15-88 in a plastic tub with a lid, that I spray down, occasionally, then see if I can rock it a bit. It's so rough that mostly its a test piece, "let's see what happens if I..." Haven't tried heat yet though, maybe this weekend.