Flow Control Valve Question. - Page 2
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  1. #11
    Senior Member JohnHill88's Avatar
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    Jun 2015
    Gridley, IL
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    Hey guys, I know this is an older thread, but thought I'd chime in if that's ok. From my limited experience, it seems that having the PTO valve might make the TCV control a little more jumpy. Is this true? I have a 446 with Vanguard repower that was terribly jumpy and I frequently killed the engine when running in high range, even when I was doing my best to "ease" into it. I've also had an Onan powered 446 with no PTO, and it didn't seem jumpy at all. Not sure if the PTO valve made the difference or not. However, I was able to significantly reduce the jumpiness on my 446 Vanguard with PTO valve by removing the white plastic detent piece below the dash. That really smoothed it out a lot, and I rarely kill the engine anymore.

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    don40207020 (06-08-2016)

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  4. #12
    Senior Member L.Fure's Avatar
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    Jan 2016
    Leslie, Wisconsin
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    Ok, I'm back on this subject again. I'm thinking about adding a flow control valve to my 444. I was wondering if anyone has used a generic version of FCV like the one in this link?

    One other thing is how did you "T" into the steel return line for the excess oil to flow back into the system? I think I saw a posting about this, but can't seem to find it.

  5. #13
    Tractor Whisper gator_rider2's Avatar
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    Jan 2011
    Glennville, Georgia
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    That valve you want 0-16 gallons flow. Once using flow tractor top speed be same as goes down row slow turn time at ends.

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    L.Fure (06-19-2017)

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