Problems and Final Engine

After finishing my engine, there were several issues that I had to address. For one, the music wire above the displacer was not dropping at regular intervals, so I had to straighten the wire to allow it to drop normally. I also had to smooth the balloon and epoxy the pvc elbow because air was escaping through gaps in the balloon and epoxy. Then I placed a counterweight on the disc to help it rotate, and finally the engine worked.

Here is the finished engine, which runs slowly, but does run.