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Originally Posted by silvergig
Compression looked good across all of the cylinders when I last checked. ... I would really like to think that the rings are okay, if I had broken a ring, I should be seeing blue smoke all of the time, right? I should also see a drastic change in compression on that cylinder, correct?
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You're right. Compression would be wonky on the bad cylinder. Is it possible that oil is leaking from the cylinder head down into the exhaust valve instead of from the crankcase up into the cylinder?
Try testing this by steadily holding the engine at different RPMs. Start at idle and slowly step it up in 500 RPM increments.
The key is to replicate the problem. We have a saying in the Software industry... "If you're testing for bugs and can't find them, it doesn't mean that the software is bug free. It just means that you're not testing hard enough". This applies to the engine in question because it is burning oil, we just don't know where it's happening, yet.
Good Luck.