On Sep 26, 4:46 am, Denny wrote:
Mostly it was Blackstone calling me telling me to check for a broken
pin plug. Any professional oil analysis will come with professional
evaluation of your data. The main indicator for me was progressively
higher AL in the oil.
[
-Robert

How about just laying your eyes on the filter at every oil change -
then washing the filter in solvent, filtering the particulates out of
the solvent, and saving them in a plasticine envelope for comparison
to the next change(s)...
Total cost about 2 bucks an oil change - 1 quart of solvent and 1 Mr.
Coffee filter...

And the quart of filtered solvent can be re-used for cleaning the
landing gear...

denny

I never saw anything in the filter until the AL got very high. The oil
analysis was showing progressively higher AL for about 2 years before
that. Sadly, it did not tell me which cylinder so I ended up having to
do a boroscope every 2-6 months to watch for indications of wear. In
the end I started pumping oil in the bad cylinder which finally told
me which to pull. I really didn't want to spend $5K to have all
cylinders pulled searching for the issue.

-Robert