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I'm not sure that the valve you have pictured is the PCV valve. A PCV valve traditionally is a connection between the intake manifold and the crank case. The line pictured, from the crank case to the air filter, is most likely a fresh air intake or breather line. But i think your on the right track to look for the PCV valve. A poorly working PCV system can ...


Specifically a foam filter for a lawn mower needs oiled, but just lightly. A foam filter lacks the ability to stop small particles as compared to a paper filter. The oil is added to make the filter "sticky" to these small particles giving the foam filter better filtering capability. As far as major engine damage, probably not. Worst case scenario the engine ...

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