Thread: dirty oil
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Old January 30th 07, 03:12 AM posted to rec.aviation.owning
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Default dirty oil

Also, I would send a sample of the oil in the engine to a good lab
like Spectro or Blackstone. See if there is a large amount of metal in
it.

Bud


On Jan 29, 11:49 am, "Dan Luke" wrote:
wrote:
Definitely have an A&P borescope that engine. Broken ring maybe.Talked to my mechanic this morning. He said not to worry; the dirty oil is

from the oil cooler and its plumbing, which don't get drained when the oil is
changed.

He said I would have noticed this before if I had ever checked it two hours
after a change. Since I check the oil before every flight, it seems I would
have noticed the oil's turning black this soon before.

Should I pay to have the cylinders 'scoped?

--
Dan
C-172RG at BFM