Re: Stock, 84 FJ60 216k, rebuilt head. I am several days into a repair on a exhaust leak but continue to scratch my head on why I would have deposits of oil in my air cleaner assembly. The pcv valve is new and the hoses do not appear obstructed. I seem to be getting oil blown up the hose on the top of the valve cover and into the port on the rear of the air cleaner assembly. Is this normal?