OK, switching gears again, I got the piston out of the ORIGINAL log splitter engine. The piston is deeply scored so it's junk. The cylinder wall likewise is scored enough so a fingernail catches on it. I think that's how someone described it. Anyway, too deep, I believe, to hone it down. I'll probably keep the cylinder to practice on honing techniques before I try them out on my chainsaw that I'll likely have to do.
![IMG_0672.jpg IMG_0672.jpg](https://cdn.imagearchive.com/arboristsite/data/attachments/607/607500-03e6fa87bbf887cb3ff313ecba7623b3.jpg)
![IMG_0674.jpg IMG_0674.jpg](https://cdn.imagearchive.com/arboristsite/data/attachments/607/607501-c1e24f8e13f558da18a697bb53595dfe.jpg)
My question now is, for educational purposes, what might have caused this? I've always thought the lack of oil due to cold weather, but some disagree with that theory. Any others?
The rings on the side of the piston damage are nearly flush with the pistons as you would expect. The pistons are locked in place and do not rotate freely around the piston. This may be an effect of the failure??
![IMG_0672.jpg IMG_0672.jpg](https://cdn.imagearchive.com/arboristsite/data/attachments/607/607500-03e6fa87bbf887cb3ff313ecba7623b3.jpg)
![IMG_0674.jpg IMG_0674.jpg](https://cdn.imagearchive.com/arboristsite/data/attachments/607/607501-c1e24f8e13f558da18a697bb53595dfe.jpg)
My question now is, for educational purposes, what might have caused this? I've always thought the lack of oil due to cold weather, but some disagree with that theory. Any others?
The rings on the side of the piston damage are nearly flush with the pistons as you would expect. The pistons are locked in place and do not rotate freely around the piston. This may be an effect of the failure??