'85 K100 I'm confused, what is the "rear main seal" and what is causing my leak
Thanks in advance for the info. I started out just intending to lube the splines, but now found oil in my clutch housing. Don recommend that I replace the clutch-nut O ring, which I am going to do. But looking thru Haynes Manual, I can't see what exactly is this "rear main seal" that people purport to be a major cause of oil leaks into the clutch housing which dribbles down the opening onto the gearbox bottom which I also have.
Are the clutch nut O ring the same as the rear main seal? If not does any one know where on the microfiche will I be able to see what the part actually look like?
Can I just spray brake cleaner to get the oil out?
Last edited by deilenberger; 03-28-2013 at 11:06 PM.
Reason: added year/model to title