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Originally Posted by Davescort97
First I've got to ask some stupid questiions like is the crankcase overfilled or is the PCV valve clogged up? That hose running from the intake to the PCV valve is called the Crankcase Ventilation Tube. The part that the PCV valve fits into is the oil separator. The line running to the air cleaner is called the Crankcase Pressure Relief Hose and valve assembly. One cause for the excessive pressure could be a damaged Crankcase Vent Oil Separator. When it goes bad all the pressure goes to the Pressure Relief Hose and Valve Assembly which goes into the back of the air cleaner.. If the poppet valve is not working the pressure will find it's way out through the dip stick tube. Off hand, I would say you need a new Vent Oil Separator. It's underneath the exhaust manifold and behind the cat. It bolts onto the side of the crankcase. When the pressure is too much to be handled by the PCV valve it is blown into the back of the air cleaner and as 120unce says it's not to bring in fresh air, it's to handle excess pressure. The fun part is to figure out where the pressure is coming from. It could be blow by the rings, a baffle damaged inside of the valve cover or a damaged oil separator.
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Dave,
No the oil level in the crankcase is correct, and the PCV valve is new. I recently replaced the original engine in this car with a used one I bought from a junkyard. It supposedly only had 70K on it. I've now put about 1K miles on it. It seems to run great, good power, etc. The only known problem right now is this PCV thing. In fact, this morning on the drive to work I smelled oil again, and when I popped the hood I discovered that the dipstick 'geyser' is back again. The engine is covered with oil.
I've still got the original motor for parts, which by the way with it's 140K looked much cleaner than the one I bought. That one also came poorly strapped to a pallet. I've since replaced the cracked oil pan that came on this engine. Anyway, I'll probably start with a compression check of the engine, and then hope that it's the Crankcase Vent Oil Separator. Is this something that could maybe also have been damaged during shipment? This engine was surely bouncing around the back of a freight truck for some time.
I sure appreciate the help. I'll let you know what I find out.