Types of Engine Cylinder | Firing Order | 2, 3, 4 Cylinder

The firing order of an engine refers to the specific sequence in which each cylinder fires in the engine's combustion cycle. It is important to ensure proper engine performance and minimize vibration. The firing order varies depending on the engine configuration (e.g., inline, V-shaped, or flat) and the number of cylinders. Here are the firing orders for 2, 3, and 4-cylinder engines:

✔ 2-Cylinder Engine:

In a horizontally-opposed (boxer) 2-cylinder engine: The firing order is typically 1-2 or 2-1, depending on the manufacturer. One cylinder fires, then the other.

✔ 3-Cylinder Engine:

In a 3-cylinder inline engine: The firing order is often 1-3-2, where cylinder 1 fires, followed by cylinder 3, and then cylinder 2.

✔ 4-Cylinder Engine:

In a 4-cylinder inline engine: The most common firing order is 1-3-4-2, where cylinder 1 fires, followed by cylinder 3, then cylinder 4, and finally cylinder 2.
In a V-shaped 4-cylinder engine (e.g., V4): The firing order can be 1-3-4-2 or 1-2-4-3, depending on the specific engine design.

The video clip used in this video by MichaelFrey
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