Buzzing pcv?

Discussion in 'General IH Tech' started by IH64Scout, Nov 25, 2011.


  1. IH64Scout

    IH64Scout Dreams of Cub Cadets

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    I noticed after I installed the tbi on my scout I can hear the pcv buzzing like its shaking around. If squeeze the hose it will stop. Does that mean its bad, or did I just not notice it??

    -Jon
     
  2. Jay Tabor

    Jay Tabor Banned

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    stick your vacuum gauge on hose end..
    we'll wait . . .
     
  3. IH64Scout

    IH64Scout Dreams of Cub Cadets

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    well.. i know what i'm doing in the morning... :tt2:

    -Jon
     
  4. IH64Scout

    IH64Scout Dreams of Cub Cadets

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    at idle it's dead on 21"hg, high idle it reached 24!

    oh and after i checked i "put" it in gear and moved the wheel chock, guess it just clicked into syncro, rolled across the driveway and hit my terra..... :taz::censored: just glad no one was in the way!

    -Jon
     

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  5. Jay Tabor

    Jay Tabor Banned

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    thats a bummer . .
    I did similar attaching a towstrap to a scout with no steer gear, as i pulled it with another scout, the towed scout swung a huge arc in the yard and headed for my tower scout,
    I got out of the way in time, but it crashed into a 3rd scout in the yard.
    oh well somedays its best to stay inside . . watch tv . .

    as to your buzzing pcv,, with that steady and high suction,
    pull the pcv out a the grommet and stick finger over end, and listen for the buzz .
    should go away...??
    at this point id say the pcv is bad- spring went sproingggggggg
    might have some dirt stuck in the valve,too. swap it with new.
     
  6. sullyscout77

    sullyscout77 Binder Driver

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    Dang Jon! How's the Scout look? :stuart:
    As you said, glad no one was hurt.
     
  7. IH64Scout

    IH64Scout Dreams of Cub Cadets

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    The one that hit the terra? The custom rear bumper saved it from any damage....

    -Jon
     
  8. Comanche Scott

    Comanche Scott High Wheeler

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    OK, so first a Jeep decides to beat you into submission, and yet your resisted!
    Now a Scout goes on a rampage...
    In a "watch-the-train-wreck" sort of way, I'd kind of like to be your neighbor... :D

    Just kidding.

    Hey, if you replace the PCV valve, you might use a later model EFI style one from like a Chevy. It will have a smaller metered orifice with a stiffer spring for the backfire ball.
    One of the cool advantages to EFI, is how much more efficient it is. The high vacuum reading shows this. So the old "drive a Buick, through the metered orifice" type of PCV valve is not really needed.
    But, if you do a lot of short trips (start and stop type stuff), the old style PCV valve will do a better job of keeping the crankcase gasses evacuated. The down side, is you will probably notice a slight increase in oil consumption, as oil vapor, along with crankcase gasses will get drawn through.
     

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