How common is it for the end seals to leak oil? I wouldn't think there would be enough oil in the valley to leak out to the bellhousing... Either that or my pcv valve is seriously messed up. My starter is kind of oily (new), so maube its that damn passenger valve cover again. Also: car runs great. I imagine if the end seals were bad enough to leak oil (new, 1000 miles at most), it would be a vacuum leak. Ive got 16-17" of vacuum at idle. Any input as always is appreciated.