What to do is to get a straight edge ( a small ruler or some small iron stock or anything srtaight that will fit in a tight space) and place the straight edge on each of the shivs.. the straight edge should point zackly straight to the next shiv. When you find the one that is OUT adjust it to fit.
From your description I would allow the shiv upstream from the harmonic balancer is the shiv that is out of the loop.
Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />

professional bovine relocation specialist