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New chainsaw piston malfunction

I just installed a new piston and cylinder on a stihl 026. It seemed to go well, but the piston gets stuck at the top of it's travel and won't let the crankshaft turn further. If I manually rotate the crankshaft in the opposite direction the piston will lower but it sticks again the next time it goes up. what is the most likely problem?

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Sounds like you are topping out.You may have purched the wrong cylinder or piston combo.If its an aftermarket combo thats probably the problem.

Posted on Nov 18, 2009

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