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View Full Version : Symptoms Of Clogged PCV?


2plus4plus0eq6
12-22-2009, 01:41 AM
Title is self explanatory. oil coming out of turbo outlet into intercooler??

Bigsyke
12-22-2009, 03:17 PM
Your using a PCV valve with a turbo?

Check your gaskets, compression then yank out the valve.

There is no way the nissan PCV valve can ever keep up with a boosted setup. Venting is usually the only solution here

2plus4plus0eq6
12-22-2009, 10:41 PM
Your using a PCV valve with a turbo?

Check your gaskets, compression then yank out the valve.

There is no way the nissan PCV valve can ever keep up with a boosted setup. Venting is usually the only solution here

Well.. correct me if I am wrong, but there is a "Blow-by Control Valve" On the s14 Sr20det. Is this the same as a PCV valve? I have no idea. I would think it should stay on the engine

There is a Blow-by hose that comes off the valve cover to block I think? If the Blow-by control valve was clogged, would blow-by from the blow-by hose cause oil to come out of the Turbo Air outlet into the intercooler?

You can see the blow-by hose on diagram 2.. it is number 1

http://i84.photobucket.com/albums/k10/dylanw83/240sx/Blow-byControlValve.jpg

http://i84.photobucket.com/albums/k10/dylanw83/240sx/EngineComponentDiagram.jpg

2plus4plus0eq6
12-22-2009, 11:15 PM
OK I think I just found the answer to my own question. If the PCV or BCV is clogged then blow-by is impossible by the sounds of it. If oil is coming out of my turbo air outlet into my intercooler, I think its because of Blown turbo seals.. :(

http://i84.photobucket.com/albums/k10/dylanw83/240sx/Blow-byDiagramPCV.jpg