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I'm replacing the oil pump. my question has to do with the center gear ( with the keyways, that rides on the crank shaft). if you slide it back it sits flush with the center sprocket but sliding it forward it sticks out a bit, not flush. when assembling this piece does the flush end face the rubber seal ( towards radiator) or does it face the oil pump cover plate ( towards engine block)?
this pic shows the keyed sprocket pushed back and it's not flush. its flush when pushed to the other end.