Fleetwin,
P/L does show the oring on the upper bearing. So I assumed that the oring was correct.
Yes there was some rust on the lower crank seal surface. You can see where the seal was riding on the crank in the first photo and the crank seal surface is shown in the second photo. As I recall I smoothed the rusted surface a bit and let it go at that. The powerhead did not look like it was apart before.
Thank you.
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