How to Solve the Issue of Water Dripping from Diesel Engine Exhaust Pipe?

1 Answers
DeKatherine
07/29/25 11:19pm
Water dripping from the diesel engine exhaust pipe does not require any treatment, as it is a normal phenomenon indicating that the engine is functioning properly with complete combustion and effective atomization. Every vehicle is equipped with a small opening at the bottom of each exhaust pipe to facilitate drainage under normal conditions or special circumstances like wading through water. The conditions for water dripping from the diesel engine exhaust pipe are: 1. The air-fuel mixture ratio must meet the normal value. For engines with electronic fuel injection or carburetors, a normal air-fuel mixture ratio signifies that the vehicle's fuel supply system is functioning correctly, and fuel consumption will remain within the normal range; 2. The engine cylinder pressure must be normal, meaning there is no significant wear inside the engine cylinder block, and components such as cylinder liners and sealing rings are intact; 3. The exhaust temperature must be normal. Most of the heat generated by the engine stays within the cylinder, with only a small portion reaching the exhaust pipe. Under these conditions, the engine's power output is relatively stable. If the exhaust pipe temperature is too high, the water vapor will evaporate.
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