Stiring

Free Piston Stirling Engine Kit
IMPORTANT NOTICE ! These low temperature differential Stirling engines require only a small difference in the bottom and top plates to operate. DO NOT place them on ahigh temperature heat source (e.g. oil/wood burning stove, candle, Arga stove). If you do, it will melt a number of parts on the Stirling engine. It can be placed on top of a recently boiled cup ofwater/tea/coffee but nothing hotter.

Starting your engine Once you have built your engine, place the engine on top of a recently boiled cup of water (as shown on picture on the left). Leave theengine for a minute in order for the cylinder base to warm up. Then simply tap the counter weight.

Parts included with the kit

Assembling Your Stirling Engine
1. Take the power cylinder and pushthe power piston/shaft through the centre. The thread on the shaft should be protruding from the thinnest part of the power cylinder. Make sure the piston moves through easily. Check for any debris inthe power cylinder. Then remove the power cylinder until later.

2. Take the displacer cylinder and add the two ‘o’ rings as shown on the diagram. They will be a tight fit.

3. Take the displacercylinder and place cylinder base at one of the ends.

4. Place them both on a solid surface and press down hard so the cylinder base fits over the ‘o’ rings to create a good seal.

5. Take one ofthe lower springs and place in the bottom of the displacer cylinder.

6. Take the power cylinder and push onto the top of displacer cylinder.

7. Add the cylinder nut onto the thread. Make surethere is a 3mm gap of thread below the nut.

8. Take the power cylinder and push the power piston/shaft through the centre. The thread on the shaft should be protruding from the thinnest part of thepower cylinder (shown on the left of the diagram).

9. Take the cylinder cap and screw it on to the power cylinder. Make sure it is on tight and the nut does not move (there should still be a 3mm...