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Dale Detrich                     Attica, OH                 djdtrh@cros.net

The Tiny Two-Cycle ,  1.00 bore X 1.00 stroke, 13,000 RPM              Started 6/3/2008          

This is a 1946 plans from one of the monthly magazines..........

Click here to go to the work in process page for this Engine

11/20/2009
This is the latest pictures of the tiny two cycle engine......It now has a ignition back plate (adjustable), carb. for variable speed control.  I hope that the engine has enough intake vacuum to draw the fuel up from the tank....During the short runs, the engine had a "good" vacuum at the intake......I am now waiting for the display box so it will not too long before I can get some run time on the engine......I am going to set the engine up so I can run either glow fuel.........Carb and intake can be removed to turn the engine to stock condition....

 

 


2/4/2010

The tiny 2-cycle engine is now mounted on the finished display box........Start up of the engine was real good.....The engine can be run as a glow or ignition engine.......I had just a few leaks, and no real mechanical problems.....The engine can be run using the original needle valve or as a carbureted variable speed engine......

The original needle valve is just a full RPM use.....The carb. allows you to adjust the speed, which is nice when you are working in the 10,000 RPM plus range........I am sending some more pictures showing the engine mounted on the display.....On the engine you will see three wires from the box up to the engine......The tri-colored (front) is the hall effect pick up for the S/S ignition system....The second wire (black) is the high voltage lead from the ignition system.....The third wire (red) is the + 1.5 volt for the glow plug......the engine is pretty fast, and I have checked the speed using the glow plug and the carb. I got a 10,200 plus reading.....I am sure that if I removed the carb. and intake pipe, and used the engine needle valve that the engine would pass the 13,000 RPM speed that it is designed for.....I am going to send you a video of a short run of the engine......If anyone has any questions, please get in touch with me.......Thanks.....Dale

  VIDEO 1 (Windows media file). 

The "tiny two cycle" engine is a fast little engine.........I had no problems with the start up and running the engine........My fan wheel holding bolt wants to loosen up with the high speed running of the engine.....I think that i have that little problem fixed.......I have run both ignition and spark, the engine is a easy starter, and wants to run.......I am trying to ease the speed up a little bit at a time.....When you get it up to around 10K.RPM + it gets a bit scarry with a new engine.......Thanks....Dale 

 


10/31/2009
Here are some pictures of the "tiny" two-cycle engine...............I got around to putting a glow plug in the engine, and the engine started on the first try.......It runs real smooth with the heavy fan wheel that I put on the engine.......Things to do yet....Build a fuel tank for the engine,revamp the needle valve (it is touchy), seal the head threads,.......I have to make the ignition adjustable backing plate.....I am going to try to make my display box supply for the glow , and 12 volts for the ignition,  so I can run it both ways......The engine is smooth and fast.......Dale

 

 

 

If you want the plans for the "tiny" two-cycle, just get in touch with me, and I will pass the plans along............Thanks Dale

 

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