How does carbon build-up in the combustion chamber affect engine performance?

Carbon build-up in the combustion chamber can significantly obstruct airflow and negatively impact the combustion process. When carbon deposits accumulate on the valves, piston tops, and combustion chamber surfaces, they create a rough surface that can disrupt the smooth flow of air and fuel into the combustion area. This obstruction can lead to incomplete combustion, which can reduce engine efficiency, power output, and overall performance.

Additionally, restricted airflow can alter the air-fuel mixture ratio, resulting in an imbalance that often leads to misfires or a rough idle. The presence of carbon can also increase the risk of pre-ignition or knocking, further exacerbating performance issues. Proper maintenance and cleaning of the combustion chamber are essential to ensuring optimal engine performance and longevity.