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Posted by: jims914 Mar 21 2023, 08:55 PM

Is there a replacement for 74 2.0 PCV

Posted by: mgphoto Mar 21 2023, 09:46 PM

Yes




This is the PCV valve, it requires a rubber gasket, I don’t remember the part number, it is for a Toyota I believe, but it is posted on a previous thread.




I cut the end of this to take up the space to attach the hose.

Posted by: jims914 Mar 21 2023, 11:13 PM

Thanks

Posted by: emerygt350 Mar 22 2023, 05:02 AM

I would add 'kind of' to this. It doesn't respond exactly like the original, and when I tried it the rubber gasket wasn't reliable either. I ended up cleaning and resurrecting the original.

Posted by: jims914 Mar 22 2023, 08:57 AM

Thanks

Posted by: mgphoto Mar 22 2023, 09:31 AM

I’ve removed the internal plunger to do some testing, I’m not going to tear an original apart.
Without the plunger the opening is about 4 to 5 mm.





Looks pretty much original.

Posted by: emerygt350 Mar 22 2023, 03:06 PM

Yeah, the issue I had, beyond the spring and orifice differences was the bleed by at idle was different as well. My tb idle screw doesn't seal so the increased air bypass at idle caused high idle issues.

Posted by: 914werke Mar 22 2023, 05:00 PM

Try a wrap of teflon tape

Posted by: emerygt350 Mar 23 2023, 05:16 AM

I can't believe I hadn't thought of that. I will give it a shot.