My dad was working on his isuzu truck once and lost a bolt. After looking for 30 minutes or so he gave up and buttoned everything back up. When he started it up he heard the sound of the bolt rattling around on top of the piston it was sitting on and he instantly figured out what happened...

With a flashlight, one of those flexible "dropped part" sqeezer grabber things (excuse my technical terms :p ), about 30 minutes and loads of patience he was able to fish it back out the spark plug hole it fell through.


Back OT, I defintiely wouldn't hope for it to just sqiush out of the cylinder if that's where it ended up. You're gonna have to fish it out somehow...

I like the shop vac and screen idea the best so far. That just might work.