Diesel Black Smoke?
Answer
The black smoke that arises from a diesel motor is actually unburnt diesel fuel. There are many different causes of black smoke that can include over-fueling, dirty or worn injectors, poor fuel quality, incorrect valve clearance, and potentially more. Black smoke is the most common smoke to come from diesel engines.
Q&A Related to "Diesel Black Smoke?"
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A common cause for a diesel truck to produce excessive amounts of black smoke is a dirty air filter. The air inlet is restricted which means there is not enough air entering the engine
http://www.ehow.com/list_7574696_causes-black-smok...
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Black smoke is caused by soot that gets into the exhaust. Diesel fuel naturally makes some soot, but normally the soot isn't in the vehicle exhaust. When it does get into the exhaust
http://www.ehow.com/list_7584629_causes-detroit-di...
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Diesels are fuel-throttled engines, meaning that rpm is controlled solely by the amount of fuel that goes into the engine: The more fuel goes in, the more power the engine will make
http://www.ehow.com/info_8796276_could-engine-exce...
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I was told by my friend who has a power stroke that it's unburnt fuel. Since they run off of fuel pressure.
http://wiki.answers.com/Q/Why_turbo_diesel_engine_...
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