"John Galban" wrote:


Borescopes and compressions were ok, but I still think it was something
like
this that was going undetected. But what?


Did you get any compression numbers from the shop? I've found that
what TCM considers to be "OK" compressions, wouldn't necessarily be
considered OK by a lot of mechanics. A friend had a cylinder in the
50s a couple of years after a TCM factory overhaul and they considered
it "OK".


Compressions were all in the 74-78 range, about the same as at annual a few
months before.

--
Dan
T-182T at BFM