I bought a China motor

[Inf3ct3d89]

I beleve it has a 40mm piston, can I change the barrel and piston to 47 without changing the crank?

 

[crassius]

won't fit into the cases

 

[Inf3ct3d89]

The case is where the arm moving the piston is at right

 

[Inf3ct3d89]

Its a 47 NVM

 

[crassius]

cases for 40mm piston have a hole on top for cylinder to go in - cylinder for 47mm piston are also 47mm wide on inside, that makes the cylinder too wide to go into the hole in cases