The pistons are one of the most important parts of an engine, because they are the mechanisms that contains the engines energy.

The pistons are located in the cylinder block.

The number of cylinders in an engine can vary.

Inside the cylinder a mixture of fuel and air is injected through the intake valve.

Pressure builds up in the cylinder when the piston returns to the top of the cylinder from the previous cycle.

When the pressure is greatest the spark plug, located at the top of the cylinder, ignites the gas and causes an explosion.

The piston is the sent downward extremely fast.

Power is transmitted through a connecting rod attached to the bottom of the piston, rod converts linear motion into rotary motion through the crankshaft.

The crankshaft is connected to the transmission, so when the crankshaft turns, the wheels turn also.

Pistons have many different materials and sizes,it dependes on the cylinder bore of the particular motor they are installed in.

It is very important to use the correct piston, correctly installed in your engine block, and maintain the proper compression ratio.

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