초록

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Abstract ▼ AI-Helper

In this study, the cause of a foreign car fire in tunnel was investigated and analyzed. The foreign car traveled 26,526 km about 20 months after vehicle registration. The starting part of the fire was the right and left end of mufflers, a connection between a right exhaust pipe and a right muffler, ...

In this study, the cause of a foreign car fire in tunnel was investigated and analyzed. The foreign car traveled 26,526 km about 20 months after vehicle registration. The starting part of the fire was the right and left end of mufflers, a connection between a right exhaust pipe and a right muffler, and around the spark plug where left engine oil leaked and burned. Because the fire started at more than two parts, it raised a doubt of arson. Fortunately, the result of engine investigation showed no relation with arson. A right piston head No. 4, an intake valve, and an exhaust valve were damaged and a right piston No. 4 was stuck. Therefore, the analysis suggested that the fire was caused by knocking.

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