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69J-14989-00-00 ORIFICE, AIR VENT testing

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  • 69J-14989-00-00 ORIFICE, AIR VENT testing

    since I was set up to test the relief valves, I went ahead and did the same with the "orifice" which allows vapor to vent from the VST to the intake silencer.

    As the name implies, there is no moving part.
    Exactly what is inside is not apparent; the view at either end resembles, to me, a cigarette filter.




    As expected, very different behavior from the valves. Flow seemed fairly constant regardless of the pressure applied, and there was no "relief" - I easily maxed out the gauge.

    Here is video of the testing:

    https://vid.me/hIOa

  • #2
    I wonder what the path is, inside the VST top, below the fittings outlined in red?


    Most people spend more time and energy going around problems than in trying to solve them.

    ~ Henry Ford
    Last edited by cpostis; 09-06-2016, 03:11 PM.
    Chuck,
    1997 Mako 191 w/2001 Yamaha SX150 TXRZ Pushing Her

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    • #3
      Ah - good question!

      I have long wondered - why are there two vent ports in the top of the VST?

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      • #4
        it is a simple check valve.
        it has a valve seat, a ball and a spring.

        what is difficult ???

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        • #5
          Originally posted by rodbolt17 View Post
          it is a simple check valve.
          it has a valve seat, a ball and a spring.

          what is difficult ???
          Nothing at all.
          Chuck,
          1997 Mako 191 w/2001 Yamaha SX150 TXRZ Pushing Her

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          • #6
            I pull a vacuum on both sides. Holds up to 25lb. Having a cat vent issue. Could be the problem?

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            • #7
              Originally posted by Kacunnin View Post
              I pull a vacuum on both sides. Holds up to 25lb. Having a cat vent issue. Could be the problem?
              Is that a kitty cat?
              you need to start a new thread with all of your motor info and problem questions

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