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Message: <blockquote data-quote="Dan-IN-MN" data-source="post: 26999" data-attributes="member: 7852">These engines do not have a PCV valve. They use a constant metered vacuum to pull vapers from the crankcase. This is metered by a small hole in the intake manifold. If this hole gets plugged, pressure with build to the point of pushing the rear seal lip out and you'll loose oil fast. With the engine running, take the oil fill cap off. If you can feel a vacuum, the hole is working. If a positive pressure is felt, the hole needs to be cleaned. Lots of videos on how to do this.Don't rely on the oil cap that is claimed to be vented. My seal went even with that cap installed.I'll also being installing a paper catch can to keep the crap from entering the intake manifold and also getting on the intake valves.</blockquote>