My -6A has an engine that is getting on in time, about 1900hrs. Since the oil consumption has been getting higher, I thought I'd go ahead and grab a borescope to see what the inside is looking like. I'm a bit perplexed by the appearance of the cylinder walls in all of the cylinders - they have a scaly appearance that I have not encountered in what I have read about borescope analysis. Does anyone know what this is?
These are "chrome" cylinders that replaced the originals about 600 hours ago.
Three of the four cylinders also had a noticeable amount of oil in them (i.e. more than just a thin film). This is about an hour after shutting down from a long flight. Is this normal or anything to be noticeably concerned about?
These are "chrome" cylinders that replaced the originals about 600 hours ago.
Three of the four cylinders also had a noticeable amount of oil in them (i.e. more than just a thin film). This is about an hour after shutting down from a long flight. Is this normal or anything to be noticeably concerned about?
