Explain the piston stop.

[JimL]

Can someone explain how you use the curved plastic piston stop stihl has? I have never used one and had a guy ask how today and didn't know.

Thanks,

 

[Tony Snyder]

You take out the spark plug and stick the curved end of the stop into the cylinder (just about 1/2 inch of it) and it will stop the crank rotation as the piston tries to go to top dead center. Then you can take the clutch off, although I use the impact and no stop except compression.

The plastic stop is used instead of a piece of rope. Too many people don't know how much rope to put in and get the rope into the ports.

Also there is some possibility of damage to a piston with the screw in metal type stop.

 

[G-MAN]

Unless it's a delicate piece of equip. I impact everything. Don't use stops to often.