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#1
August 17th 06, 12:16 PM
posted to rec.aviation.ifr,rec.aviation.owning
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Copper in oil analysis ?
Peter wrote: I've just had a big increase in copper; wonder where copper comes from. The engine is an IO-540-C4D5D, 500 hrs since new in 2002. I had the same thing happen. Copper comes from brass bushings. In my case the wrist pin broke in the middle and the bushing was being destroyed. I am not sure if there is any other brass in the engine. 
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