Piston lateral movement...

[Huicho417]

I was in the process of cleaning the carbon off the top of the pistons. As I kept cleaning them with more force I noticed the piston had some small movement laterally. I turned the engine by hand and it seemed like at he pistons have the same amount of movement inside the cylinder. Is this normal?

 

[Beekeeper]

Yes it is normal for the pistons to have some lateral movement in the bore

 

[zyzzyx]

As the Aluminum and the cylinders get warm, They both expand. The aluminum expands more than the cast iron and
they tighten up. That's the way it's designed.

 

[66Satellite47]

Yes that's normal. If you don't have a little, you're in trouble.

 

[Huicho417]

Thank you for the feedback everyone. Glad to hear this is actually normal.