And the question is, what exactly is crankwalk...i get that its a bad thing. I do know what the crank, i assume "walk" means it moves, but i wanna how and why?
Im totally confused!

i'm wonderin' too? it's not a term i've heard in my "honda habitat".

side to side or lateral movement out of spec of crank when running. obviously causes catastrophic problems. Check magnus motorsports. Very good explanation.

The out-of-spec movement is usually caused by an excessively worn thrust bearing.

It's "caused" by the trust bearing wearing down.

EDIT: Jinx

cool makes sense. thanks.

hey thanks guys, i think i might just start a thread for jasons lame ass questions. Cuz i got plenty... Like whats an up pipe? I know what a down pipe is but not an up pipe.