What causes dieseling on a gas engine?
In a gasoline engine with a carburetor, dieseling occurs when the engine continues to run even after you have shut off the ignition. The hot spark plug continues to detonate the fuel, and the carburetor simply supplies the fuel, because it is not always controlled electronically.
Why does my diesel engine run all the time?
Run-on by dieseling is caused by fuel in engine igniting without spark. Possible explanations: a.) Running winter fuel in warm weather. Winter formulated fuels have a higher vapor pressure, meaning that they evaporate easier. Only vaporized fuel will burn, not the liquid stuff. The cure is to run the fuel tank nearly empty and fill up fresh.
What kind of gas does a diesel engine run on?
b.) Using gasoline with alcohol content. Gasahol gasoline contains about 10% alcohol, usually methanol alcohol. The alcohol vaporizes at a much lower temperature than the rest of the fuel. The result is alcohol vapor in the combustion chamber, and the engine runs on easily.
What causes a spark to detonate in a diesel engine?
Spark timing advanced too far can cause pinging and detonation, both indications of firing too far before top dead center.
Where does the extra heat from a diesel engine go?
The extra heat may go into the cooling system (high water temperature), or may cause hot spots in the combustion chamber.
How to eliminate Dieseling in a gasoline engine?
Therefore, to eliminate dieseling in a gasoline engine, you need to eliminate the unwanted fuel source and hot-spots in the combustion chamber that allows the fuel to explode. Run a carbon-cleaning solvent through your engine. Regardless of its fuel source, a gasoline engine simply cannot diesel without something to ignite the fuel.
Run-on by dieseling is caused by fuel in engine igniting without spark. Possible explanations: a.) Running winter fuel in warm weather. Winter formulated fuels have a higher vapor pressure, meaning that they evaporate easier. Only vaporized fuel will burn, not the liquid stuff. The cure is to run the fuel tank nearly empty and fill up fresh.
b.) Using gasoline with alcohol content. Gasahol gasoline contains about 10% alcohol, usually methanol alcohol. The alcohol vaporizes at a much lower temperature than the rest of the fuel. The result is alcohol vapor in the combustion chamber, and the engine runs on easily.
The extra heat may go into the cooling system (high water temperature), or may cause hot spots in the combustion chamber.