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  #11  
Old 04-07-2024, 02:43 PM
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Aren’t we supposed to get rid of the oil separator when we do the PCV mod?
 
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  #12  
Old 04-07-2024, 07:08 PM
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Originally Posted by Harvlr
Aren’t we supposed to get rid of the oil separator when we do the PCV mod?

Exactly. I removed mine per PCV MOD. Developed a surging idle, reinstall oil separator valve and the surging idle had not come back.
 
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  #13  
Old 04-07-2024, 08:09 PM
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Originally Posted by Frank4
... I also replaced the plastic connector at the intake that the hose from the valve cover connects to with a brass fitting. ...
Frank4, in your post #6 in this thread you wrote what I have quoted above.

The PCV mod requires a PCV valve to be installed at the upper intake manifold, not just a "brass fitting".

What did you install there?
 
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  #14  
Old 04-07-2024, 10:58 PM
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Ah ha. That’s where I went wrong. I used an NPT valve! Straight through I guess?
 
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  #15  
Old 04-08-2024, 04:11 AM
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Yeah, I used the brass plumbing fitting for 10 years after I broke the original plastic fitting and before I did the PCV mod 4½ years ago.
 
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  #16  
Old 04-08-2024, 08:23 AM
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The one I used was for my air compressor.
 
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