Few weeks ago I was driving my Revo 3.3 in the rain. Ran out of fuel and filled it back up and tried to turn it over with the pull start. Nothing. One way bearing was going so i sanded it up and oiled it up before putting it back in. That fixed the pull start slippage but it still wouldn't turn over. I then pulled it out of the truck and opened it up. To my avail, I see a sort of gum like substance with tiny, almost microscopic metal shavings on top of the piston. Tried to pull the piston out and it wouldn't budge. I lubed it up and everything, still nothing. After about 3 hours of trying to get the piston out, I got mad and broke out the hammer and screw driver. I was hitting the sleeve and it still wouldn't move. I'm pretty sure when manhandling it, i ruined the piston/sleeve. But how can I get those parts out to see whats wrong. Should I just buy a new engine or try to fix this one?