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I have been given the task of repairing an Heinrici engine of approx1900circa. It is mostly complete but missing the flywheels and crankshaft. If I make a pattern for the flywheels I can have them cast at a local foundry. From photos I could see where the rim coincides with the body and ascertained ...

I have found that old stainless vacuum cleaner tubes are good for displacers you just have to braze the cap. Just looking at your photo the displacer cylinder looks too small in relation to the power cylinder. Most of my engines have at least 1.5 to 1 ratio and they 800 run to 1000 rpm. Your engine ...

From what I have read about stirling engines over the last few months, I have come to the conclusion that the only reason for placing the power piston at the cold end, is just to keep as many moving parts as possible away from the heat source. This makes it easier to seal the power piston and pisto...

It should take 10 sec to drop

Very, very interesting

In my engines I usually use teflon plumber's tape in a stuffing box, well oiled. the teflon melds together with oil and heat making a good sliding seal. I haven't tried it with a popcan engine but it works well with the usual engines.
Mark