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PVC valve or not?

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  • PVC valve or not?

    While winterizing at the end of last year, I pulled the hoses that go from the flame arrestor to the rocker covers. I accidentally dropped one in the lake. No problem, I'll take this other one to the house so I can replace the one I lost. Now that spring is here, I can not find the one I brought to the house. I swear it had a PCV valve on it. Looking for replacements, I found my parts list and it says it is not a PCV valve, but a plastic elbow... but i swear it was a PCV valve! So after reading up on it, I have determined that some people use 2 PCV valves, some use one PCV valve and one breather elbow, and others use no PCV valve at all. I have a 1989 7.4L V8. Which setup is best for me?
    Last edited by Baka123; March 9th, 2014, 09:37 PM.

  • #2
    Re: PVC valve or not?

    If it went to the flame arrestor they were just hollow connectors
    NO PERSONAL QUESTIONS, THIS IS WHAT THE FORUM IS FOR.

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    • #3
      Re: PVC valve or not?

      The source of your confusion lays in the fact that some of the newer engines do use PCV valves. In either event, PCV valves are only used for emission reductions, but do not functionally change the way the engine operates. You can use whatever your heart fancies, elbow or PCV's.
      just because you found it that way does not mean it is supposed to be that way.

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      • #4
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        Re: PVC valve or not?

        Originally posted by Baka123 View Post
        ....l. I have a 1989 7.4L V8. Which setup is best for me?
        No PCV valves, just breather hoses on both sides.

        Chris....
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