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  1. Aerostar55

    Grayson four stroke

    Purchased this four stroke a couple of years ago. Trying to get it running, but it has no ignition system. I am experimenting with a set of MG points attached to the rear gear cover using the gear cover studs. Just going by old pictures found online. The threads are not metric as far as I...
  2. Aerostar55

    1936 Midget engine from Popular Mechanics magazine plans

    Here are some pictures of my Midget engine. It has an 1-1/4 inch bore and is built from castings. The first part of the magazine article had drawings for making the patterns for the Crank case halves, the Cylinder, cylinder head, Cast Iron flywheel, brass connecting rod, venturi, and timer...
  3. Aerostar55

    Jr Brown Jr

    Jr Brown Jr .19 model airplane engine built from Roger Schroeder casting kit Year: 1998 Model: Shroeder Jr Brown Jr casting kit Engine: Jr. Brown Jr. Engine Modifications: straight from kit drawings
  4. Aerostar55

    Tormach CNC lathe class

    Has anyone attended any of the Tormach Machine CNC classes? If so how would you rate them?
  5. Aerostar55

    Need Gears for Howell Power House engine

    Help: I'm having trouble locating a source for the 1,125 diameter brass gear for the Howell Power House valve timing gear. It is 48 pitch with 52 teeth. Already tried Boston Gear's website and Stock Drive Products. also ebay. Any suggestions? Thanks !
  6. Aerostar55

    1936 Midget magazine plan engine

    This engine is a, single cylinder, air cooled four stroke. It was a two part article featured in Popular Mechanics magazine in 1936 by E.C. Wittick. "Midget Gas Engine" Part 1 was making the wood patterns for the aluminum crank case and the cast Iron cylinder and flywheel. Part 2 was "machining...
  7. Aerostar55

    Wall Water Witch

    This engine is an Elmer Wall design from about 1946. It has a 1 inch bore and uses spark ignition with a 3 volt model airplane coil. It has an aluminum piston with two cast iron piston rings. The fuel is gasoline or Coleman lamp fuel.
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