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1. 10:18 PM - Metal In Oil Filters (DangerJet)
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| Subject: | Metal In Oil Filters |
After the first flight of my plane (since import), and the associated long duration
high power engine run, I drained the oil, and removed and cleaned the filters.
The oil was free of any visible FOD, (sample sent for oil analysis), but
when I washed the 3 filters I did find a number (maybe 15 particles per filter)
of very small (barely visible) metal pieces. They were clearly ferrous (they
stuck to my magnet).
Should I be worried? The airplane sat for a lot of years before this run.
The temps and pressures are all good, and the EGT is good. The spooldown takes
a while (indicated not damaged bearings), but there is a noise on spooldown (almost
like a clicking) below ~200 rpm, audible from near the inlets.
I am concerned about potential corrosion/damage to the bearings from sitting, any
thoughts?
My current plan is to do another engine run, another flight (less than 30 minutes),
come back, and drain the oil again to see if more metal has accumulated.
Is this reasonable?
Thanks!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=466849#466849
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