that 2nd link has a bunch more links at the bottom for crankwalk info.
you can probably drive for a while, like matt said its just a warning sign for you. i swear every 7 bolt 4g63er i know has had crankwalk, some even more than once. wierd.
______________________________ Matt D. '06 Evo IX SE '98 RS-T 13.8 @ 106.1