If you can give me a part number for the seals I'll see what I can find out.
Could be the seals between the bearings and the sump. Those are vapor seals. There may also be some vapor seals that would keep fuel vapors from contaminating the sump oil were there to be a leak somewhere (such as in the heat exchanger).
[This message has been edited by PITbeast (edited 30 May 2001).]