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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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Part 4: Stihl chainsaw piston and cylinder replace / repair ...

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Dec 15, 2011 - Uploaded by Andy Reynolds
Refitting the cylinder to the rebuilt crankcase on a Stihl 026 chainsaw. ... Part 4: Stihl chainsaw piston and cylinder replace / repair. .... Part 3 Stihl 026 chainsaw fitting the rings, piston, anti vibration mountings - Duration: 15:10.

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