Anybody have a good idea of how to get stuck pistons out of an engine? Got AC wd-45 tractor, stuck motor, the two middle pistons are almost straight down, but lack a bit. got the front and back ones loose but center ones won't budge! soaking for a week, still no go!

"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands."