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With any motor you are going to need some type of "controller". For variable speed you will need a variable voltage power supply or...

All your carbide inserts are sintered. In that case the carbide is in powder form and pressed at very high pressure into a mold. It is...

Diesel fuel and Kerosene are very different fuels. That engine will not idle on diesel because you are using the wrong fuel. A Gasoline...

The Rumley Oil Pull tractors used oil for coolant. Closed system with a radiator. They wanted the engine to run hotter that they could...

I would not consider a steel boiler for model operation because of corrosion. Most of the model boiler designs I have seen are copper...

Your rod that you were using for measurements was to big in diameter. you were not measuring the dovetail, you were measuring the...

An important factor to consider is the acceleration of the piston as it moves up and down in the cylinder. A longer stroke has higher...

Some engines had 2 balance shafts to neutralize the off center vibration induced by 1 balance shaft. And then you have to look at any of...

If your weld looks like you were squeezing a chicken you need to practice a lot more...

With stick welding the rod and the machine are both important. 6013 was called farm rod when I was growing up, the flux helps direct the...