Originally Posted by
wrench1
The cylinders on an O-200 have always been a weak link... if you can get a set of original cylinders to last 3000 hrs on a O-200, more power to you.
I never said these were OEM.
Not quite. While I don't understand what your use of "US military or airline industry" has to do within the context of an O-200, certain aircraft can legally operate beyond engine OEM TBO limits.
I meant that in the context of how setting manufacturers TBO to a particular time based on hours operated and say that covers all engines in all planes in all situations is not generally followed today by most GA AP/AI's and plane owners who have studied the matter, as I have. There are more scientific methods for determining when to overhaul an engine based on fact.
I'm fairly certain my issue and that of Pulse 1, above is not cylinder/ring related. That the oil is coming from elsewhere.