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  #1  
Old 06-21-2018, 07:55 PM
kgo5xd kgo5xd is offline
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Default PCV Valve

I just replaced my pcv valve and when I went to take the old one out I noticed it wasnít plugged into the valve cover. When I put the new one in itís very loose. I tried turning as it has some threads on valve but it just spins endlessly. How do I make sure it stays put and doesnít shake loose? See pics.


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Old 06-22-2018, 06:03 AM
RoberticusMaximus RoberticusMaximus is offline
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Default Re: PCV Valve

it does look there should be a little tit sticking out on the valve cover to twist the valve on tight with. maybe it broke off when removing the stock one? hope not!
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Old 06-22-2018, 06:25 AM
kgo5xd kgo5xd is offline
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Default Re: PCV Valve

I didnít remove the old one though. It was already out of the valve cover.


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Anyone else have this happen? Can I put a rubber grommet in there to keep it tight?


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Old 06-22-2018, 06:53 AM
rwenzing rwenzing is offline
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Default Re: PCV Valve

Quote:
Originally Posted by RoberticusMaximus View Post
it does look there should be a little tit sticking out on the valve cover to twist the valve on tight with. maybe it broke off when removing the stock one? hope not!
+1

Traditional PVC valves were often held in solely by the friction of an O-ring and could easily leak or come loose. Obviously, this has the potential to increase crankcase emissions.

For OBDII compliance, the EPA gave manufacturers the choice of two options to ensure that the PCV would remain in place:

1) set up an electronic monitor to test for PCV leaks
OR
2) Use "positive retention" to lock the PCV valve in place

Since it is simpler to implement, many vehicles got the positive retention option.

Your valve cover originally had a formed piece that engaged a small tab on the PCV to keep it from loosening in use. Servicing the PCV requires that the PCV tab be flexed out of the way to unscrew it. Someone in the past didn't understand that and used the Neanderthal method to force it to unscrew and damaged the retention parts.

Anyway, you're probably looking at a replacement valve cover if you want it to function as originally designed.
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  #5  
Old 06-22-2018, 06:55 AM
RoberticusMaximus RoberticusMaximus is offline
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Default Re: PCV Valve

is silicone out of the question? lol
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  #6  
Old 06-22-2018, 08:49 AM
kgo5xd kgo5xd is offline
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Default Re: PCV Valve

What about something like this?
https://m.ebay.com/itm/Ford-E6TZ6A89...Display%3A4.0L



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