Originally Posted By NANKET
It is for blocking the oil from the seal. Don't believe it? Look at the rear main seal area on a crankshaft. See anything odd? There is a built in ring around the crank to block the oil going from the bearing to the seal area.

have any other reason for that being there?



iagree


slings the oil away from the seal. Same purpose for the front slinger. Slings oil on the timing chain as well.

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