Got this e-mail from Andrew on July 19, 2012:
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Hi Allen,
Sometime ago I wrote to tell you that my “Vickie” would not run. Well, it now runs. I tried making a new power piston but that did not help. Tried improving a number of other things but nothing worked. I thought that all the flat surfaces were good, but there had to be a leak somewhere. I finally put thin paper gaskets between all the flat surfaces and it ran. It really runs good! You ask me to send you a picture when I got it running. I will now try to send you a picture. Andy Larson
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Andrew,
The engine looks good, and thanks for the tip!
Allen