I am using the rubber seal & yes the lip is towards the front. This time (the second time) it seams that the
oil is coming from between the block & the block plate. The first time I could see the
oil leaking off the back of the crank but not so much this time. I also used sealant all over the main on the first time but not the 2nd. Just on the seal at the ends. The upper half of the engine is completely dry. This engine was rebuilt apparently 10 years ago and only 2k mi since. It runs fine with plenty of power. I think this was a problem with the engine from the beginning. I do not know the exact specs on the engine but I was told it was a 410. The only thing that I can find on the crank is "3U". It is a service block as well. I'll have to look at a pic I took to make sure which way the grooves are going.
Thanks
Ed