Found in most internal combustion engines, a fuel filter is a filter in the fuel line that screens out dirt and rust particles from the fuel. This article does not cite any references or sources. ... In chemistry and common usage, a filter is a device (usually a membrane or layer) that is designed to block certain objects or substances while letting others through. ... A blacksmith removing rust with sand prior to welding Rust damage in automobiles can create hidden dangers. ...

Fuel filters serve a vital function in today's modern, tight-tolerance engine fuel systems. Unfiltered fuel may contain several kinds of contamination, for example paint chips and dirt that has been knocked into the tank while filling, or rust caused by moisture in a steel tank. If these substances are not removed before the fuel enters the system, they will cause rapid wear and failure of the fuel pump and injectors, due to the abrasive action of the particles on the high-precision components used in modern injection systems. Fuel filters also improve performance, as the less contaminants in the fuel, the more efficiently it can be burnt. This article does not cite any references or sources. ... Abrasion on the palm of a right hand, shortly after falling Abrasions on elbow and lower arm, still healing. ... // Fuel injection is a means of metering fuel into an internal combustion engine. ... Engine tuning or engine building is the adjustment, modification or design of internal combustion engines to yield more performance, either in terms of power output or economy. ... A combustion reaction taking place in a igniting match Combustion or burning is a complex sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat or both heat and light in the form of either a glow or flames. ...

Fuel filters need to be maintained at regular service intervals. This is usually a case of simply disconnecting the filter from the fuel line and replacing it with a new one, although some specially designed filters can be cleaned and reused many times. If a filter is not replaced regularly it may become clogged with contaminants and cause a restriction in the fuel flow, causing an appreciable drop in engine performance as the engine struggles to draw enough fuel to continue running normally.

Some filters, especially found on diesel engines, consist of a bowl-like design which will collect water in the bottom (as water is more dense than diesel). The water can then be drained off when required, by opening a valve in the bottom of the bowl and letting the water run out, until the bowl contains only diesel. It is especially undesirable for water to be drawn into a diesel engine fuel system, as the system relies on the diesel for lubrication of the moving parts, and if water gets into a moving part which requires constant lubrication (for example an injector valve), it will quickly cause overheating and unnecessary wear. Also, because diesel engines require large amounts of compression to operate, water in the fuel system can be very dangerous as water cannot be compressed and may cause considerable engine damage. This type of filter may also include a sensor, which will alert the operator when the filter needs to be drained. In automobiles this usually causes an "idiot light" (customarily orange, and with the image of a fuel filter) on the dashboard to illuminate. This article does not cite any references or sources. ... Look up Bowl in Wiktionary, the free dictionary. ... Impact from a water drop causes an upward rebound jet surrounded by circular capillary waves. ... In physics, density is mass m per unit volume V. For the common case of a homogeneous substance, it is expressed as: where, in SI units: ρ (rho) is the density of the substance, measured in kg·m-3 m is the mass of the substance, measured in kg V is... These water valves are regulated by handles. ... Diesel or diesel fuel is a specific fractional distillate of fuel oil (mostly petroleum) that is used as fuel in a diesel engine invented by German engineer Rudolf Diesel. ... Lubrication occurs when opposing surfaces are completely separated by a lubricant film. ... Bold text Wiktionary has related dictionary definitions, such as: compressor, compression inthe wkjhrlfidhb;g/df == Compressor may refer to: Gas compressor, a mechanical device that compresses a gas e. ... Distinguish from censure and censer and censor. ... Karl Benzs Velo model (1894) - entered into the first automobile race An automobile or motor car (usually shortened to just car) is a wheeled passenger vehicle that carries its own motor. ... An idiot light is a method of displaying information about a system (e. ... The orange, a fruit from which the modern name of the orange colour comes. ... A dashboard from a 1940s car The dashboard of a modern car, a Bentley Continental GT A Hayabusas dash A modern Formula 1 car has all its gauges mounted on the steering wheel A dashboard or dash board in an automobile is a panel located under the windscreen and...

External links

• Replacing a fuel filter - Free video content from CDX eTextbook
• Detailed fuel filter replacement instructions