4 Cylinder Stirling Engine Generator DIY Homemade Part 2

6 months ago my father and I decided to build a second Stirling engine after the success of our first one. This time we decided upon a double rider type engine with 4 working cylinders. Sheet steel was laser cut locally to speed up the build so it has only taken 3 months to get to a working condition. As with most these experimental projects, they are never finished We want to take it to some shows, rally s to show in 2022. To see other videos of the Mk2 stirling engine: If you need to contact me: Specification Piston to tube clearance cold side 3. 5mm Piston to tube clearance hot side 3. 5mm Hot bulb clearance from inner tube 3. 5mm Cold cylinder outside tube clearance from piston 3. 5mm Hot Cylinder length from bottom of regenerator to bottom of inner tube 274mm Cold Cylinder length from bottom of regenerator to bottom of inner tube 565mm Pi