For a four-cylinder engine, which firing order is listed?

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Multiple Choice

For a four-cylinder engine, which firing order is listed?

Explanation:
In a four-stroke, four-cylinder engine, power pulses should be evenly spaced around the 720-degree crank rotation to keep the engine smooth and balanced. The firing order that achieves this puts each successive fire 180 degrees apart on the crank. With the sequence 1-3-2-4, cylinder 1 fires, then 3 fires 180 degrees later, followed by 2 another 180 degrees later, and then 4 at the next 180-degree interval. This arrangement distributes the four power strokes evenly over the cycle, minimizing torsional vibrations and providing steady torque. Other sequences would not maintain this even 180-degree spacing, leading to more vibration and less smooth operation.

In a four-stroke, four-cylinder engine, power pulses should be evenly spaced around the 720-degree crank rotation to keep the engine smooth and balanced. The firing order that achieves this puts each successive fire 180 degrees apart on the crank. With the sequence 1-3-2-4, cylinder 1 fires, then 3 fires 180 degrees later, followed by 2 another 180 degrees later, and then 4 at the next 180-degree interval. This arrangement distributes the four power strokes evenly over the cycle, minimizing torsional vibrations and providing steady torque. Other sequences would not maintain this even 180-degree spacing, leading to more vibration and less smooth operation.

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