After break-in and for a few hundred miles on my new engine (my own build), it was completely dry. Not a drop on the floor! I was so happy. Now it's starting to leave quarter to half-dollar sized spots on the floor. I just don't understand why it would change suddenly.

I'm pretty sure it's coming from the rear main as it's pretty wet inside the bell housing. It looks like the oil is getting flung around inside and then dripping down the sides.

I spent SO much time and care to get the rear main just right when I built the engine because I HATE oil leaks, and I heard how difficult it is to get one to not leak. The really frustrating thing is, the old engine I pulled out didn't leak at all, but it burned a quart in 200 miles...

Is there anyone with a dry engine??