Hey guys and gals just wondering if any one could give me some advice of why this could have happened to my rebuilt motor.   Suddenly got a oil leak one day behind the transmission..turns out the gasket for the rear main seal blew out and caused my oil leak.   My assumption is to much crank case pressure cause at the time I only had a valve cover breather...since then I have moved it to the suction side of the turbo.   Would you use another paper gasket or better off with sine good silicone?

So, I did a compression test and found cyl3 @ 40 psi...barely! When I added oil to the cyl it maybe went to 50 psi? So the car has a fairly new head but it sat for a while(not sure how long) long enough for the empty gas tank to rust inside. I'm curious if anyonehas ever seen rings get stuck? Or maybe a burnt valve? Just ordered a head gasket and will probably pull in a few days. I took the vc off and didn't see much. Any ideas? Thanks!

http://dallas.craigslist.org/dal/ctd/4751165912.html   Not mine.   Weird.   Discuss.

H there I finally got a decent 87' quest. The motor has low oil pressure and has a knock. going to swap it for a 95' efi 5.0 and t5 trans. I really like all the treads on here. packed with info and pictures. thanks everyone!