Engine rebuild

[Lit Hawk]

So my piston blew up my engine again luckily it was stilll under warranty and txpowersports sent me new pieces to try and rebuild. They sent me a new piston, cylinder, jug, crankshaft and gaskets. So now I need to remove all busted pieces from case. My question is what is the best way to remove all metal from case. Should I use a tub of diesel fuel to rinse everything out. Any help and tips on doing this really appreciated guys. Thanks