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  1. L

    Teflon as spark plug insulator

    I have seen comments from respected members about using PTFE (Dupont brand = Teflon) as an insulator core for a diy spark plug insulator. Some valid comments dealt with the difficulty of machining this material, and I agree. But... Working on a video about my Tiny IC redesigned as a twin I...
  2. L

    Looking for IC boxer plans

    Can anyone recommend plans for a 4 cylinder opposed boxer engine? For some reason after buying an old Subaru building a boxer model is stuck in my head. Air cooled would be nice, this will be my first multiple-cylinder engine. Thanks for any help you can offer. Lee
  3. L

    Deburring port from inside cylinder

    Hi all, Does anyone have any tips on how to debur a side port that is in the middle of a cylinder bore? For example an exhaust port in a 2-cycle cylinder? Hopefully someone has some neat tricks/tools/ideas. Thanks! Lee
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