Moral of the story is sometimes you can get away with murder regarding pistons
That's for sure! A well known expedient during WW2, when replacement motorbike/stationary engine pistons just weren't available, was to make a new piston out of hardwood - apparently red gum was the best timber...
Here's a vid of a Briggs running - with an Oak piston crown installed!
Cheers, Gadge
"ODK Mods can explain it to you, but they can't understand it for you..."
"Crazy can be medicated, ignorance can be educated - but there is no cure for stupid..."