Diesel exhaust smoke

Diesel engine smoke comes in three colors: white, black and blue. Consistent smoke coming from the exhaust most likely indicates a deeper internal problem with the engine. A small puff of smoke during quick acceleration is acceptable with older diesel engines due to a lag before the turbocharger’s air flow can match the increased volume of diesel fuel injected into the cylinders.

White smoke points to some very specific conditions which can indicate a number of component or system failures. But mostly, it is the incorrect injector timing in the cylinders. White smoke from exhaust diesel and petrol engine may be the signal of different car problems. Ad - White smoke occurs in a diesel engine when the diesel fuel goes through the engine and reaches the exhaust without having been burned. This typically occurs due to the engine being too cool to burn the fuel , often resulting from low compression in one cylinder, problems with the fuel injection timing or a defective fuel injector.

A diesel engine in good condition should produce no visible smoke from the exhaust , under most operating conditions. A short puff of smoke when an engine is accelerated under load may be acceptable, due to the lag before the turbocharger speed and air flow is able to match the volume of diesel injected into the cylinders. WHITE SMOKE occurs when raw diesel comes through the exhaust completely intact and unburned.

Diesel Engines Blowing White Smoke from Exhaust. Some causes of this include. This video should only be used as guidance and not as an absolute-guide. If you don’t know what you are doing. Moreover, the fine particles (fine particulate matter) in diesel exhaust (e.g., soot, sometimes visible as opaque dark-colored smoke ) has traditionally been of greater concern, as it presents different health concerns and is rarely produced in significant quantities by spark-ignition engines.

In many cases, white smoke emanating from the tailpipe (often at idle once the engine reached operating temperature) typically means a worn out injector. Now this isn’t always the case, but after some trouble shooting we’re usually the go-to shop when diesel drivers need refurbishe rebuilt, or new injectors. Each engine has valves that open and close.

These Valves are manufactured to open mechanically by pressure from a Rocker Arm. They let air and gasoline come into the engine. How do reduce diesel engine smoke? Why would a diesel engine blow black smoke?

Excessive Exhaust Smoke. What makes diesel black smoke? Because, excessive exhaust smoke means you have an engine issue on your hands. Take note of when the smoke appears and what color it is.

Avoiding the problem will only shorten the life of the engine and result in unnecessary repair bills. This is usually the last color of smoke you want to see, particularly on gas cars. If the smoke is thin, and goes away relatively quickly, than it is merely condensation.

However, thicker, longer lasting smoke is a much larger headache. Your engine is more than likely burning coolant. Typically, this white smoke indicates a serious fuel injection problem. When the fuel injector of a heavy duty diesel engine wears out, it causes the nozzle hole to enlarge or the injector needle to erode. This allows excess fuel to enter into the engine’s combustion chamber.

It is usually a sign of inadequate and unfinished incomplete combustion of the diesel fuel. Automatic and vehicle-mounte Ward Diesel NO SMOKE Systems offer exhaust protection in the firehouse and on scene. Direct Source Exhaust Protection Systems. It is never a good signal and can indicate several problems.

But if you spot it early, know what to do and act on it, these problems can be fixed. Most diesel cars (if not all) emit a small amount of black exhaust smoke while accelerating. It takes some time for the engine system to develop enough revolutions (RPM) and power to burn the fuel.

This is how a diesel engine works and they are not the typical signs of a smoky diesel engine.