I know how you feel. Happened to me once, but not from JP; hence, since then I always inpect my engine prior breaking it in.
can you contact the store where you bought it from and have them help you?
i'm just trying to think of ways to help. i belive it would benefit us all to learn what/how to solve this kinda problem if it were resurface to any of us.
Originally posted by rangulo
I have also noticed the piston has a hair line crack on the side from the top of the piston to the skirt bottom.... This really sucks...