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Dead Parrot · 11-29-2021, 07:51 PM

OEM system works pretty good. As mentioned, if the motor is worn, blow by can over power the PCV valve and also flow back though the filter. Don't think the EGR has anything to do with crankcase ventilation.

Make sure the PCV valve and hose is good and the port in the carb is clear. The carb passages can get clogged.

An oil soaked PCV filter won't hurt anything as long as it is otherwise fairly clean.

Make sure the valve cover the air filter is connected to still has the internal oil splash setup. Aftermarket covers often omit the oil splash piece.

If the motor is otherwise running fine, don't worry too much about it. An extra quart of oil every so often is generally a lot cheaper then a new motor or a rebuild.

11-29-2021, 07:51 PM	#3
Dead Parrot Registered User Join Date: Aug 2012 Location: Oklahoma City, OK Posts: 2,486	Re: Oil blow by OEM system works pretty good. As mentioned, if the motor is worn, blow by can over power the PCV valve and also flow back though the filter. Don't think the EGR has anything to do with crankcase ventilation. Make sure the PCV valve and hose is good and the port in the carb is clear. The carb passages can get clogged. An oil soaked PCV filter won't hurt anything as long as it is otherwise fairly clean. Make sure the valve cover the air filter is connected to still has the internal oil splash setup. Aftermarket covers often omit the oil splash piece. If the motor is otherwise running fine, don't worry too much about it. An extra quart of oil every so often is generally a lot cheaper then a new motor or a rebuild.