Why does combustion happen outside of the engine cylinder?
In short: A car backfire occurs when fuel ignites in the wrong place. This video explores the mechanics of how combustion travels backward through the intake manifold, rather than staying within the cylinder where it belongs.
The phenomenon known as a backfire is defined by combustion occurring outside of the engine's cylinder. While often used as a general term, it specifically refers to combustion traveling through the intake manifold. This is distinct from an afterfire, which involves combustion occurring within the exhaust system.
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- Summary by Intellect · source: Why Do Cars Backfire?
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