Unusual Air Engine
you can find a video here https://youtu.be/LTcOi8K2ZIg
the cylinder and rotary valve may need a little sanding or smoothing to fit in addition you will need 15 M8 nuts
you can find a video here https://youtu.be/LTcOi8K2ZIg
the cylinder and rotary valve may need a little sanding or smoothing to fit in addition you will need 15 M8 nuts