O-200 Sudden Roughness in Flight

Discussion in 'Maintenance Bay' started by buzzard86, Sep 19, 2015.

  1. Tom-D

    Tom-D Taxi to Parking PoA Supporter

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    When you find metal in the filter, it's in the sump too. get it out.
     
  2. buzzard86

    buzzard86 Pre-takeoff checklist

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    Jim R
    I talked to the mechanic again tonight and also consulted independently with my regular mechanic. As they explained it to me, the damage/failure was at the top of the piston in the combustion chamber and neither thought there was a risk of metal in the sump. I will confirm my understanding when I see the cylinder on Wednesday, but I think they found the rings were intact when they pulled the cylinder. Something on the top broke and wound up in the exhaust.

    Recommendation is to replace with reman cylinder since I am at TBO.
     
    Last edited: Sep 21, 2015
  3. Tom-D

    Tom-D Taxi to Parking PoA Supporter

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    Pay me now, or pay me later.

    Flush that sump, simply as a double check on where the debris went.

    We Want pictures.
     
  4. Tom-D

    Tom-D Taxi to Parking PoA Supporter

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    Sounds to me as if you had a piston failure. this is typical at TBO in the 0-200 when they make it that far.

    This engine is trying to tell you some thing.
     
  5. Rob Schaffer

    Rob Schaffer Cleared for Takeoff

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    Any update Jim?
     
  6. buzzard86

    buzzard86 Pre-takeoff checklist

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    Yep, plane is back with a reman cylinder.

    Exhaust valve broke at the stem and the piston pounded the valve around in the top of the cylinder before spitting it out into the muffler. Rings were intact, all valve pieces were accounted for, and the sump and oil filter were clean.
     
  7. VanDy

    VanDy Cleared for Takeoff

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    That is exactly what happened to my friend!


    Sent from my iPhone using Tapatalk
     
  8. Let'sgoflying!

    Let'sgoflying! Touchdown! Greaser! PoA Supporter

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    So good to hear the outcome, good goin'.