I appreciate the comment Husky77, yeah it was a combination of factors. I went with OEM Cylinder and Piston, and new OEM Crankcase. (all new OEM parts, older stock, probably pre-2019) No cheap parts agree with you on that! Pretty much have a new long block and the old saw is gone. Traded the entire Crankcase away basically, for the newer one. The XPW tag and original older parts still have some value it would appear. Not a lot! But a guy still had to split the case, install new bearings and seals, re-assemble the case, and that's more work than I was willing to embark on.
I think it got hot in some really green wood. Older fuel and oil might have played a factor but I think it was more of a mechanical issue with the wood I was "harvesting" and just got too hot.
Kind of like a race car and you're trying to "win the race" even though you know you are goign to fry your motor if you keep pushing it. I used to go to the race track with my older brother and I would see guys "keep going" and then laugh about it after they blew up the engine! As they knew they were going to have to rebuild it or find another long block, etc...
It happens, my chain sharpening skills might have been a factor. I was sharpening the chain by hand filing, perhaps I was doing something incorrectly. It was not for a lack of effort in the sharpening department. The fuel/oil department, I think that was stupidity or ignorance, not being aware of how important that is. Yet I have other tools that didn't blow up, didn't score with the same batch of fuel.
So it was a combination of factors, but it got too hot for sure! The other tools I have won't run that hot in the first place.
I wonder if there is some kind of heat gauge for a chainsaw or warning device of an oil issue? Don't want to fry another saw or all my new OEM parts. I got a lot of years out of the XPW, and a kid had it before I did, I had never pulled the muffler until it shut down. Hard to say if it was not already scored and this was the "last straw" kind of thing.
I could analyze it to death, but it blew up and I got me some new parts! Not an original XPW anymore... it's a Franken Saw now, but an OEM Franken Saw...