How many degrees does a four-stroke cycle engine complete in one full cycle?

A four-stroke cycle engine completes one full cycle with the movement of the piston through all four strokes: intake, compression, power, and exhaust. Each of these strokes requires the piston to move up and down twice, which translates to two full revolutions of the crankshaft to accomplish one complete cycle—one revolution for the intake and compression strokes and a second for the power and exhaust strokes.

Since each full revolution of the crankshaft represents a rotation of 360 degrees, completing two revolutions results in a total of 720 degrees for a full four-stroke cycle. This understanding of how the four-stroke cycle operates is essential for automotive technicians, as it helps them diagnose and understand engine operations and performance.