Steve, I was thinking about the exaust. The whining noise sounds almost like a turbo winding up except a bit louder and more annoying

The manifolds look good but I haven't checked the braided section. Is there an easy test for this? I have felt for leaks with my hand but that's obviously only going to find a big one.
Paul, I don't have any history on the seals but the ones I've changed (all tranny and rear crank) all looked stock and origional. Where is the thrust washer? is it on the outside of the block under the crank pully?
As for the crank bearings, I've been pretending that is not possible
