So engine has ran a few times it keeps sheering flywheel keys. So I'm stumped don't know if I need a new flywheel or if maybe not having it torqued enough. The keyway looks sharp on one side where it keeps sheering. I found my crank seal had popped completely out back when the key sheered and my motor mounts broke. Thinking I need new crank seals. Haven't done a leak down test still would the crank seals being bad or loose cause a lean condition that could be causing my flywheel key problem along with a sharp loose keyway?