Originally Posted by
losifan94
I think it is. It's also very hard for me to push the piston to the top of the sleeve where it should normally go. The engine is almost 6 years old with no maintanece so I think it just got tired. I only had a bout 6 gallons through it.
Lot's of use can make skirts brittle, easier to crack.. Too much heat makes them prematurely brittle as well. Pistons dont go all the way to the top of a sleeve, you should see a TDC (top dead center) ring on the skirt where the piston top's out. Beyond that it will be hard to push but if it gets hard to push before the TDC ring, you still had pinch in the sleeve.
If it truly was the skirt, you should be able to see the crack. Got pics?