Smoking: catching oil from PCV line on a 408 Magnum

TrailBeast said
I ran across the same problem, and I do have baffles in the cover so I put a 1/8 limiting orifice inside the PCV hose to slow the vacuum down and that took care of it.
It will still vac your hand to the opposite valve cover vent but the smoke went away.

The PCV is supposed to be nearly closed at WOT anyway, so you may have run across a bad valve that does not.

That is what I thought too. At wide open throttle, there should be very low or no vacuum reading, so the PCV valve should not really be suck that much air at that point.

This was only happening at high rpm's in the 4800 rpm to 6500 rpm range in the top gears. I may put a fresh valve in just in case. I also have an open element breather on the opposite valve cover, which should vent excess vacuum.

Either way, I'm happy it is not smoking at all anymore. I'll flog it plenty more in the following few hundred miles of my break-in period, then put in a bigger baffle and fresh PCV valve, install a larger intake-to-airfilter hat, make sure everything is tightened up and change the oil and filter.

I read numerous articles about this issue after doing some research on Google. Sucking oil into the intake through the PCV system turns out to be not that uncommon of a problem at high rpm or when a motor is boosted via supercharging or turbo charging. I suspect the restrictive air hat and too small a baffle in the valve cover are contributing factors.

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