UOA is a nice way to watch engine trends. However, it's unable to pick up large particulates, such as the typical Lycoming failure. I recently received the following:
"As an aside, I religiously sent samples to Blackstone during my last
engine run...all 1600+ hours...and all came back glowingly perfect. Even
the last one...as I was cleaning metal out of my filter"
This particular owner experienced camshaft failure, very similar to my cam failure. It's common on Lycoming IO360 engines and it DOES NOT show up in UOA results.
A picture of my camshaft failure can be found here: http://cujet.com/html/engine.html
"As an aside, I religiously sent samples to Blackstone during my last
engine run...all 1600+ hours...and all came back glowingly perfect. Even
the last one...as I was cleaning metal out of my filter"
This particular owner experienced camshaft failure, very similar to my cam failure. It's common on Lycoming IO360 engines and it DOES NOT show up in UOA results.
A picture of my camshaft failure can be found here: http://cujet.com/html/engine.html
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