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Author Topic: Early Microcosm Hit & Miss Gas Engine Model Revisited 4 Years Later (The Blue One)  (Read 633 times)

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Re: Early Microcosm Hit & Miss Gas Engine Model Revisited 4 Years Later (The Blue One)
« on: January 26, 2022, 01:34:22 pm »
Hello Gil, it looks like you are getting good service from your blue engine.
   I had forgotten the "blue" engines came with brass piston and no rings, would you say the blue engine has noticeably less compression than o-ring version? Or any thoughts on if you prefure the brass or aluminum piston? Thank you!
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