What are the effects of a blocked exhaust pipe on the engine?
1 Answers
Effects of a blocked car exhaust pipe: The engine may stall, and if the accelerator is forced after starting, carbon deposits may accumulate on the pistons inside the cylinders. Related explanations are as follows: 1. Engine operation principle: The engine completes a working cycle through the intake, compression, power, and exhaust strokes. After the power stroke, the engine uses the inertia of the power stroke to expel the burned exhaust gases. If the exhaust outlet is blocked, high-temperature exhaust gases are compressed inside the cylinder. As the piston moves upward, the pressure on the piston increases, and the resistance to the piston's upward movement also increases. Even if the piston can pass the top dead center, exhaust gases may be expelled from the intake port during the early stage of the intake stroke, preventing fresh air intake. Only when the pressure drops below atmospheric pressure can intake occur, resulting in a very small amount of intake air. This makes it difficult to compress and perform the power stroke, or even if it does, the energy produced is minimal. During the next exhaust stroke, if the compression is obstructed, the engine will stall. 2. Consequences of complete blockage: If the exhaust pipe is completely blocked (which is practically very difficult), the engine will not start. If it is partially blocked, the car will experience poor acceleration. In the long term, this condition also makes the engine more prone to carbon buildup.
