HHM1 Drawing Notes FloridaAME（FloridaAME HHM1画笔记）.pdf

HHM1 Notes Page 1 of 14 Rev. 1.1, 3/23/2003 Horizontal Hit and Miss 1 - Drawing Notes Design In January 2001 I decided to build a horizontal hit and miss engine. I looked at the plans in Strictly I.C. Magazine and was not impressed by the boxy designs. In February, I went to an Engine and Tractor Show and saw lots of engines. I took the features from three different engines and added them to the sketches I had made. I wanted the parts to look more like the castings used in the old engines. Drawings were made of the main components and machining started in February 2001. Mid project I was distracted for many months, but in February 2002 the engine took over again. By July it was complete. It took over 3 months to get it to run good. Many little details and a lot of learning about how to operate a engine. After that I spent time testing many of the items and designs that were passed over while trying to make it run. These notes and the drawings were written as the engine is getting a final polish and paint in March 2003. The engine runs great, starts easy, and can be taken apart, reassembled and it still works. The operating adjustments are not critical and it is a joy to watch it run. Project This engine is built from bar stock. It has a lot of extra machining on the parts to make then look more like old cast parts. The plans are intended for someone willing to make their own gears and wind their own springs. These may be parts that are purchased on other engines. They are not difficult but they are extra steps