Purchasing Top Quality Used Engines From swengines.com If your car’s engine is causing white smoke, foul smell and irritating noise etc., these problems indicate that it is not functioning smoothly and need to be replaced at the earliest. Replacing faulty engine with a remanufactured one is indeed a cost effective option. Engines are available in different sizes, functionalities and designs depending on the type of vehicle you have. Understanding engine’s working is not easy as it has several components, each with its specific use and purpose. So here we will confine our discussion in describing the engines based on their strokes, and how each stroke of the engine works exactly. Two stroke engine Two stroke engine is a type of internal combustion engine that completes a power cycle with two cycles or strokes (up and down movements) of the piston. These two strokes happen during each revolution of the crankshaft. A two-stroke engine has many benefits over a four-stroke one. It is much simpler in design and is smaller and lighter than the four-stroke engine. Two-stroke engines are extensively used in lawn movers, snowmobiles, string trimmers, leaf blowers, chain saws and other high-rpm applications. Four stroke engine In a four stroke engine, four cycles are needed to complete the operating cycle. These four strokes are: Intake stroke In this, the piston moves downward in the cylinder. When it moves down, the volume of space above the cylinder is increased. This creates a partial vacuum which draws the air and fuel mixture through the intake valve port into the combustion chamber. Compression stroke It is created when the piston moves upward in the cylinder. Compression happens when both valves are closed. The valves are tightly sealed in the compression stroke and the piston rings prevent leakage past the piston. Power or combustion stroke In this stroke, both valves remain in closed position. When piston compresses the charge and reaches the top of the combustion chamber, an electrical spark fills the gap between the electrodes of the spark plug. This ignites the air and fuel mixture and the force of the explosion moves the piston downward. Exhaust stroke In exhaust stroke, burnt gases are removed from the cylinder before introducing a
Purchasing Top Quality Used Engines From swengines.com
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