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Oil Tank plug crush washer

in 912 / 914 Technical Questions 11 years ago

  • Re: Oil Tank plug crush washer

    by » 11 years ago

    I suppose it would be OK to tighten to 130 in. lbs and if that doesn't stop the leak torque to 135. Why do the books read to tighten to 125 ? Is that carved in stone and shouldn't be torqued tighter. It seems to me the tank plug should be tightened until the leaks stops. Opinions please
      
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  • Re: Oil Tank plug crush washer

    by » 11 years ago

    Hi Terry,

    You should torque to 25Nm or 18.5 Ft/lbs for the oil tank drain plug. The torque value is in the Line Maint. and Parts manual.

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

      
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  • Re: Oil Tank plug crush washer

    by » 11 years ago

    Roger I did torque to 222 in. lbs which is 18.5 ft lbs but still have a drop oil leak. When I go back to the hanger the next day there's been enough oil leak to bother me anyway. I wonder if it would be OK to torque the drain plug a little tighter ?
      
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  • Re: Oil Tank plug crush washer

    by » 11 years ago

    With that amount of torque (pretty healthy) it shouldn't leak at all. I would change the style of the crush washer and try to find out why it leaks. A little more may be okay?, but be careful of thread damage. I do lots of planes here and none of them leak. Something must be wrong or different.

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

      
    Report

  • Re: Oil Tank plug crush washer

    by » 11 years ago

    Terry,

    You might try what I did. Use a solid copper washer rather than the crush washer. I wasn't having a problem but used a copper washer by accident. It doesn't leak.

    Bill
      
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