Drivers side oil seperator/catch can?

[huskeee]

There is what appears to be a one-way check valve at the exit of the oil separator (air flows out easily, but zero if you blow back into it). (I have a spare separator on my shelf)
Can't tell if its performing as a PCV. Not sure why they would remove the original PVC to add one at the other end of the separator. Maybe that keeps the separator at the same pressure as the crankcase (so it drains) but will prevent a backfire into the separator?

Yeah so the PCV would have been moved as the separator would have been under vacuum, and the oil drain would have bypassed the PCV and allowed a non-regulated amount of crank gasses into the intake manifold under vacuum conditions. It wouldn't act like a drain either as you mentioned, plus the backfire issue.

Curious, does the 90dg drain fitting on the valve cover have any sort of one way check-valve in it?

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[The Chairman]

Curious, does the 90dg drain fitting on the valve cover have any sort of one way check-valve in it?

No, just a simple angle piece.

 

[Snoopy49]

 

[The Chairman]

So is it purely an emissions thing?

Could be. Here's more from the Maintainance Manual:

 

[The Chairman]

You are correct:

 

[protraxduner]

The factory PCV? hose that goes from the intake to the passenger side valve cover appears to be mostly unrestricted? This is the hose that is replaced by the handling/track pack oil seperator. I was able to blow thru it in both directions with ease. There does seem to be some very slight restriction but nothing affecting me blowing thru it. This may be normal and expected.

 

[The Chairman]

The factory PCV? hose that goes from the intake to the passenger side valve cover appears to be mostly unrestricted? This is the hose that is replaced by the handling/track pack oil seperator. I was able to blow thru it in both directions with ease. There does seem to be some very slight restriction but nothing affecting me blowing thru it. This may be normal and expected.

Yes, just a vacuum hose from behind the throttle plate. The PCV limits the amount of flow to the intake.

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