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oil pressure drop low rpm

in General Tech Discussion 7 years ago
I was running mid 4000 rpm, descending for a landing, and Gertrude (the lady in the Skyview) said "oil pressure." I looked at the oil pressure and there was a red x through it and no data! I have 20 hours on the engine. Roger......Help.

Bill Boyle

  • Re: oil pressure drop low rpm

    by » 7 years ago

    Bill,
    We are going to need a lot more information.:huh:

    Is it working again?
    Did the engine seize?
    What Engine?
    What Plane?
    What Sender?
    What have you tried so far?

    Bill Hertzel
    Rotax 912is
    North Ridgeville, OH, USA
    Clicking the "Thank You" is Always Appreciated by Everyone.

      
    Report

  • Re: oil pressure drop low rpm

    by » 7 years ago

    I don't know if it will work. I shut down and it's parked in the hangar. I'm kinda feeling out what to do next.....
    The engine did not seize, there was no indication of a problem w/the engine.
    The engine is a 912
    The plane is a Vans RV-12
    Don't know what sender and haven't tried anything yet.
    Thanks,
      
    Report

  • Re: oil pressure drop low rpm

    by » 7 years ago

    A big red "X" on SV is typically an instrumentation failure, not necessarily a loss of pressure. Likely a wire to the OP sensor is loose or disconnected. As Bill said, you need to provide more info.
      
    Report

  • Re: oil pressure drop low rpm

    by » 7 years ago

    Call Dynon. Their customer service is good. I'm pretty sure they will confirm what David said, the RED X indicates that the Skyview is not seeing an oil pressure sender. To echo David again, most likely a loose connection somewhere.
      
    Report

  • Re: oil pressure drop low rpm

    by » 7 years ago

    It is more like an electrical issue than a real oil problem.
    Assuming a 912ULS...

    Turn on the Skyview as if you were about to START.
    If you still have a Red X, it is a wiring/sender issue.
    It should be reading ZERO without the engine running. Not X.

    Before anything else, is the wire still on the Sender?

    If you are gun shy, to be completely cautious, replace the Oil sender with a mechanical gauge.
    Hand prop the engine. Within a dozen turns you should see the mechanical gauge move off the peg.
    If so, you have Oil pressure! and a sender/wiring problem.

    Bill Hertzel
    Rotax 912is
    North Ridgeville, OH, USA
    Clicking the "Thank You" is Always Appreciated by Everyone.

      
    Report
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