Same issue for me when I removed my oil pan on a girdled motor...had sealed the cork gasket on both sides with the Right Stuff...it's a fantastic sealer but getting the parts off is a major PITA...I had to slowly chip away at the gasket so I could get something in between the girdle and pan to pry it loose...ending up tweaking the pan rail a little...thought I had straightened it out but I guess not as I've had a small oil leak for awhile now...never had a drip before...