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Discussion in 'Engine Topic' started by giggity, May 4, 2016.
Damn, that is a cool project. I'm too lazy, I just bought a small vented can.
so your not using valve cover breathers at all, just a catch can with PVC?
Yes, plus I have the factory hose from the pass side cover to the air cleaner and the PCV is hollow with a small orifice.
So instead of using a pump or header to create negative air, you used the pistons.
The steel wool blocks the mist, so you are still clearing the block of a little contamination and pressure from blow by!!!!
Again, excellent project, very smart way to fix one issue, without causing another!!!!!
Isnt that big tube from your valve cover to your air cleaner essentially a breather?
I guess. All it has in the breather is a flame arrestor plus the baffle in the cover on both sides.
I'm assuming you don't run a gauge????
It might be a good test to run a sealed system.
It would help keep the windage down.
Where did you get the hollow PCV valve?
GM used to sell lots for the trucks that were consuming oil, then someone told them to stop selling them.
Search on GM's part number 12572717 fixed orifice PVC valve.
Here are the P/N's for the fixed orifice PCV valve -
- ACDelco #CV948C,
- AC Delco #12572717.
GM no longer stocks the PCV valve.
Substitute for GM 12572717 fixed orifice PCV valve
CARQUEST 76-2698 in Canada