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912uls Oil pressure vale change

in General Tech Discussion 9 years ago
Hi Roger I am still having problems with the intermittent oil pressure so I will replace the oil pressure vale with the new type, I was wondering do I need to do and oil change or can I replace the vale without draining the oil?

Cheers John

  • Re: 912uls Oil pressure vale change

    by » 9 years ago

    Hi John,

    Just replace it.
    You will drool some oil, but very little. I have my new parts together in one hand and unscrew the other oil plug with the other. Make sure when the old one comes out that the spring and ball bearing comes with it. Then just insert the new parts and torque it down. Done. no purging or anything else.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell

      
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  • Re: 912uls Oil pressure vale change

    by » 9 years ago

    Hi John, I just replaced mine it's a non
    Event. As roger indicated a drool of oil
    screw it in , torque and safety wire and your all set. I had very positive results.

    Regards, Bob
      
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  • Re: 912uls Oil pressure vale change

    by » 9 years ago

    Hi John,

    Regarding the oil pressure change it is
    My advise not too use the shim included.
    Your oil pressure will be pushing 70 psi.
    As Roger told me its volume not pressure
    We are really looking at. I removed the shim and oil pressure is steady at 55 psi.

    Roger will most likely concurre.

    Regards,
    Bob N854K
      
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  • Re: 912uls Oil pressure vale change

    by » 9 years ago

    Many thanks guys just waiting for the parts to arrive :) :)
      
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  • Re: 912uls Oil pressure vale change

    by » 9 years ago

    Hi Roger just changed the valve for the newer type with the mushroom instead of the ball. pressure still high, so I have replaced the gauge, now and the valve, I guess next would be the sender unit, can I change this again without oil change etc ?
    Ps do you have any other idea what this might be ? a part from the oil pressure reading she is running sweat as a nut.
      
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