Hello,

I'm trying to figure out the mystery of why my plugs are getting oil fouled. I've com to the conclusion the PVC is drawing oil in.

If you remove the pvc, and breather on my valvecovers I have a LOT of oil.

Additionally, the breather side leaks oil.

How much pressure is "excessive" ?

I wonder if the Moble 1 synthetic is my issue?

-- Joe

 

I've recently discovered the same problem. The baffling in the valve cover isn't enough to prevent the PCV system from pulling oil. I put a separator together and in a 30 minute driver I found oil in it. Engine doesn't smoke any more either.

Lot of similarities to your engine: same oil, modified, PCV from valve cover. . .

RBob.

 

Define "seperator" ??

I know i should prolly tear down and replace the rings,and I'm sure this is because of the increased pressure with the blower. But I need to get through the year.

-- Joe

 

Wow, I missed the Vortech part. Well, other then that the engines may be similar . On my engine I've always had oil smoke problems and did/checked a bunch of other things before one day it just dawned on me that it may be the PCV system. And it is/was.

What I did for a temporary separator was to use a full sized baby food jar. Two 3/8" tubes through the lid, one to the bottom, the other stops at the top. Placed a course scrubber pad (for pots & pans) in the bottom with some foam on top of that (I wanted to prevent any of the metal scrubber stuff from going into engine).

This unit is placed inline with the PCV vacuum line. The hose from the PCV valve goes to the tube that goes to the bottom, the other tube goes into the TB. I used a glass jar so that I may easily see whether oil was being caught.

Here is a link to one that another guy put together:

http://www.y8s.com/celica/air-oil/

I've also seen air compressor water separators being used.

RBob.

 

...or this: https://www.thirdgen.org/techbb2/sho...hreadid=134224

 

I have found the stock valve cover baffling to be sufficient to keep oil away from where it shouldn't be right up the point the motor is just about ready to be rebuilt (lots of blowby from the rings).

AFTERMARKET valve covers are a whole different story. Some have no baffle or one that isn't nearly as effective as the stock design.