What Causes a Diesel Engine to Emit Black Smoke and Lose Power?
1 Answers
The reasons for a diesel engine emitting black smoke and losing power are: 1. Insufficient fuel supply: A low amount of fuel in the cylinder results in reduced heat generation from combustion, failing to meet the engine's load requirements, leading to engine power loss and incomplete combustion that produces black smoke; 2. Poor spray quality: During diesel engine operation, if the fuel injector's spray quality is poor, the surface area of the fuel sprayed into the cylinder is reduced, decreasing the oxygen combination rate and resulting in less heat generation; 3. Insufficient air intake: Inadequate engine air charge means carbon atoms in the fuel cannot fully react with oxygen atoms, leading to reduced heat output and engine power loss. Solutions include: regularly replacing the air filter, replacing the solenoid valve, periodically cleaning the fuel lines, and avoiding prolonged overload operation.