Leak tests should be preformed cold since it gives the worst case senario. Unless the valve was stuck (which it's not, since it's holding a tad over 60), the compression will go up when warm.
It's pretty subjective I think, so would like your subjective opinions.
Well David, Here is my subjective opinion, for what it is worth. Initially, a "60" reading isn't enough to scare me too much yet, in itself. I would want to know why the low reading??
Did the A&P work for the "Sweet spot?" Or just put to TDC and go with that without moving the prop? An engine is dynamic and I believe that you must test it dynamically. Finding the maximum compression in which that cylinder is capable of obtaining. That is how it is actually operating in flight.
One compression test is insufficient to determine if there is actually a problem. Run the engine and retest. If that cylinder is then still low then you MAY have a problem. You need to then locate the problem. Is it rings? Or is it (a) valve(s)? That would then determine my next course of action.
You need more information, David................
How's that?
