hi Iconic, I agree, after a rebuild it should not leak. I used to have an Austin Healy, the Bug Eye. It has no real rear seal, just a slinger. It would always leak on hills, even after a rebuild and other attempts to stop it.
The Pagoda is different and I expected it to be dry. My leak is many drops after about 15 minutes of running. The little cover plate (where where you can open with two bolts and see the flywheel) is dripping oil. Inside, I can feel up to the crank and there's oil on the webbing (ridges) of the adapter plate between engine and trans. This is a manual trans car.
What a mess, I trusted that the PO knew what he was doing, he had put on the pan before I purchased the car. Now I think he cut the lower part of that rear main seal too short and there's a gap between it and the upper part. It's upsetting in that this seems to be one of the worst repairs to have to make.
Ron :'(