[HondaDustR]

Try installing the PS pulley as centered as you can and just leave the PS belt off for now, or shim up the crank with something else that fits on it and is about the same thickness as the PS pulley to rule out the possibility of the bolt torque not transferring to the oil pump gear. Better yet, before reassembly, clean off the outside surfaces of the crank and oil pump gear and mark their alignment to each other ( or mark the gear in relation to the crank keyway) with some paint or something that will stay on long enough to be able to tell if they slipped if you still end up having problems.

Also, what does the other side of that crank bolt washer look like? Is it reasonably smooth and flat? If it is gouged or warped, it could be contributing to the problem, especially if the PS pulley hole got to be oval by being sandwitched between the washer and the end of the crank.