help with cox motor

Its not fun at all, they have nothing to do with cars. The engine doesnt look or work like a car engine. It doesn't even run off real gas, it runs off this special "1/2A" fuel. I don't know if it is put together correctly, i did follow the instructions there are no left over parts. I tried what you said and it still wouldn't start. I read through that manual that you told me to download and nothing in that seemed to help. Do you have any other tips or am i going to get a F?

The reason your teacher wants you to put this engine together is because he wants you to know the basic parts of the internal combustion engine. Cox engines are very basic engines and they are perfect for a teaching tool. They are small, easy to take apart and they don't cost too much. Those engines are similar to car engines! Car engines may not look the same as those Cox engines, but that's because a cars engine has more then one cylinder, is bigger and has to deliver enough power to move a heavy car. Plus car engines have electronics and sensors to control the speed and many other things. Cox engines only need to deliver enough power to turn a prop and pull a small light weight plane through the air. Car engines and Cox engines are both internal combustion engines, they both have a cylinder, piston, crankshaft, crankcase.... The only differences is that the Cox engine that you are using is a 2 stroke engine, has a reed valve (cars do not use a reed valve) and that it has a glow plug, gasoline powered cars do not use a glow plug but diesels do. 1/2A fuel is a fuel made up from 15%-35% nitromethane, 20% Castor oil and methanol (wood alcohol). You can buy that fuel from hobby shops or order it off line. Just make sure you don't go and try to use gasoline or any other fuel. If you are having trouble, tell your teacher!

Thanks for everyones help. A guy at my dads work knows alot about these engines as he has a few old plastic cars that have them in it. He said he will take it home, rebuild it and get it running for me. I just want to know how to fix my own car if it breaks down. I have no intention on rebuilding a car engine, I would leave that work to a real mechanic. Many other kids in my class were having trouble with their engines also. Only a few kids actually found this fun and got theirs to run. If I don't give the engine to my dads friend, I'll list it for sale on here. I'll never have a use for it. I don't fly airplanes or watch a little car go around in a circle, I play video games that I could drive a real looking car around on a real looking road. Thanks - jason_dawg245

Jason_dawg245 wrote:Thanks for everyones help. A guy at my dads work knows alot about these engines as he has a few old plastic cars that have them in it. He said he will take it home, rebuild it and get it running for me. I just want to know how to fix my own car if it breaks down. I have no intention on rebuilding a car engine, I would leave that work to a real mechanic. Many other kids in my class were having trouble with their engines also. Only a few kids actually found this fun and got theirs to run. If I don't give the engine to my dads friend, I'll list it for sale on here. I'll never have a use for it. I don't fly airplanes or watch a little car go around in a circle, I play video games that I could drive a real looking car around on a real looking road. Thanks - jason_dawg245

video games? That is what is wrong with kids these days. They don't go out and learn this kind of stuff on their own by playing with a little engines or take anything apart to see how it works. Instead you go on a video game and learn some made up [bleep] about cars. You cant click a little button and expect to get your engine swapped in your car, you or someone else has to do it. Turn of the game station and go outside, go take apart your dads tape deck, go fix a bike, go do something other then sitting on your ass and play a video game.