What does it mean when my diesel blows black smoke?
What does it mean when my diesel blows black smoke?
Black smoke is the most common smoke color coming from a diesel engine and most likely indicates something is wrong during the combustion of the diesel fuel. The engine could be delivering too much fuel, not enough fuel, too much air or simply not enough air.
What does black smoke mean on a Cummins Engine?
Black smoke means you need to check for: Faulty fuel injectors: If your engine has faulty injectors, they can cause a return flow or drop in fuel pressure, which alters the amount of fuel reaching the engine. Faulty injector pump: Pumps affect the fuel pressure and injectors directly, and a faulty pump can do a lot of expensive damage.
What can go wrong with a Cummins diesel engine?
What Can Go Wrong With Cummins Diesel Engines? 1 1. Engine Not Starting or Hard to Start. In some cases, diesel engines will flat-out refuse to start. When an engine experiences difficulties starting 2 2. Running Rough at a Lower RPM. 3 3. Lack of Power. 4 4. Black Smoke. 5 5. White Smoke.
When to shut down a diesel engine with smoke?
No matter the color of the smoke it is not something you should ignore. A properly working and maintained diesel engine should produce no visible smoke. Make sure to shut down the engine immediately if you encounter excessive smoke as further heat or load could severely damage the engine further.
What does black smoke mean on a Cummins 6?
Black smoke usually means excessive fuel, so I don’t think you have a fuel pressure problem. Your also going to want to remove charge air hoses and check your turbos. Visually inspect them on exaust and intake side for fin damage-leaking oil seals, and for bearing problems (side to side) play.
Why is there black smoke coming out of my diesel engine?
Black Smoke If you start to see black smoke coming from a diesel engine, it typically means there is an imbalance in the air-to-fuel ratio. The fuel system is either suffering a lack of clean air or delivering too much fuel to the engine. Black smoke means you need to check for:
