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The piston transfers the force from expanding gases during combustion to the crankshaft via the connecting rod, facilitating the conversion of chemical energy into mechanical energy.

Pistons are commonly made from aluminum alloys due to their lightweight and good thermal conductivity.

Symptoms include excessive oil consumption, loss of power, misfires, and unusual engine noises like knocking or rattling.

Damaged pistons are typically replaced rather than repaired, as repairs may not restore original strength and integrity.