Building a Stirling Engine that is Wood Fired - Part 7 - (It works, Just about!)

Second test run of this novel stirling engine design
I've been building this all winter and am very excited to see it run! If it doesn't work I'm not sure what to do!
To see other videos of the Mk3 stirling engine:
• Building a Stirling En...
Contents
3:56 Start the fire
5:42 Success!
8:37 Experiment with crank angles
After the last disappointing attempt of trying to run this engine I made a few changes. First off, I added another flywheel to add more inertia to the system. Second, I remade the fire box to create more direct heat upon the hot heat exchanger.
The simple objective is to at least get it running. Once its running, I can play around with parameters to see what improves the situation.
I'm happy to report the engine does in fact run ( just about). I am really quite happy about that (and relieved after the work I've put in!). I now need to think about what can be improved to make it better.
I'm very interested to hear peoples thoughts and ideas to help progress this project
Cheers
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