electrostatic shrimpton engine

How to increase the steam engine cam allignment and make the engine moves smoother!? any ideas or links? thnx!

engine specs.:
stuart steam engine model
2 pistones
double acting movement


Hey, It is a toy... They want it to run rough to add "Interest," so they didn,t include any adjustment!

Steam Engine Stuart Models D10

Stuart Models D10 steam engine with reverse running at low speed at 4 psi Was awarded a bronze medal at the 100th Model Engineering Exhibition Ascot