The function of the diesel fuel system is to inject a precise amount of atomized and pressurized fuel into each engine cylinder at the proper time. Combustion in a diesel engine occurs when this rush of fuel is mixed with hot compressed air. No electrical spark is used as in a gasoline engine.
There are many different types and shapes of fuel tanks. Each size and shape is designed for a specific purpose. The fuel tank must be capable of storing enough fuel to operate the engine for a reasonable length of time. The tank must be closed to prevent contamination by foreign objects. It must also be vented to allow air to enter, replacing any fuel demanded by the engine.
Three other tank openings are required--one to fill, one to discharge, and one to drain. There are three types of diesel fuel lines. These include heavyweight lines for the high pressures found between the injection pump and the injectors, medium weight lines for the light or medium fuel pressures found between the fuel tank and injection pump, and lightweight lines where there is little or no pressure.
Diesel fuel must be filtered not once, but several times in most systems. A typical system might have three stages of progressive filters--a filter screen at the tank or transfer pump, a primary fuel filter, and a secondary fuel filter.
In series filters, all the fuel goes through one filter and then through the other. In parallel filters, part of the fuel goes through each filter. For more information on fuel filters, see Diesel Fuel Filter Basics. Simple fuel systems use gravity or air pressure to get fuel from the tank to the injection pump. On modern high speed diesel engines, a fuel transfer pump is normally used. This pump, driven by the engine, supplies fuel automatically to the diesel injection system.
The pump often has a hand primer lever for bleeding air from the system. Modern injection pumps are almost all jerk pumps which use the plunger and cam method of fuel injection. Combined pump and injector for each cylinder unit injector type. One pump serving injectors for several cylinders distributor type.Apology letter for smoking
Pumps in a common housing with injectors for each cylinder common rail system. The common rail system is rapidly gaining popularity for on-road applications. The in-line and distributor types are used on off-road vehicles and industrial machines.March 29, References. This article was co-authored by our trained team of editors and researchers who validated it for accuracy and comprehensiveness.
There are 18 references cited in this article, which can be found at the bottom of the page. This article has been viewedtimes. Learn more Changing the fuel filter is a part of regular maintenance. Keeping your fuel system properly maintained by changing the fuel filter prolongs the life of the fuel pump. Dirt in the fuel is captured by the filter which clogs over time, causing it to operate less efficiently. The clogged filter reduces fuel pressure and volume in the fuel system. If your vehicle is losing power, it could be a sign of a clogged fuel filter.
Note: This guide applies to gasoline engine vehicles only. The fuel filters in diesel cars and trucks are usually much larger, and the whole fuel system is much more complex. Diesel engine fuel systems are also under a lot more pressure, with modern common rail systems producing over bar of pressure. Accidentally releasing such high pressure could result in injury. Every day at wikiHow, we work hard to give you access to instructions and information that will help you live a better life, whether it's keeping you safer, healthier, or improving your well-being.
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Your support helps wikiHow to create more in-depth illustrated articles and videos and to share our trusted brand of instructional content with millions of people all over the world.
Please consider making a contribution to wikiHow today. Then, use a flathead screwdriver to pop out the plastic clips holding the fuel filter in place.
Next, slide the fuel lines away from the filter so you can take them off the nozzles on either end. You can then slide the old fuel filter out of its bracket. To put a new fuel filter in, just slide it into the bracket, reattach the fuel lines, and replace the plastic clips holding the filter in position. Did this summary help you? Yes No. Jacqueline Martinez. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker.
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No account yet? Create an account. Edit this Article.Uncategorized 0 comments. This fuel needs to be clean. But that is is not always the case. Inevitably, automotive fuel will contain substances and particles, both organic and inorganic.
Because a fuel filter performs such an important function, it is essential to understand how it works, when to tell if it is faulty, and how to obtain the right one for your vehicle. That is the reason we came up with this fuel filter guide.
Reading it will help you ensure optimal performance of the engine as well as prevent damage to its parts. Read chapter by chapter, and learn more about this crucial part of an automotive fuel system. The guide focuses on the type of fuel filter used on road vehicles, which in some ways, is different from that of other fuel systems. Chapter 1: Fuel Filter Definition. How important is fuel filter to my car? Where fuel filter is located in car engine? What is the function of a Fuel Filter?
What are the difference between Fuel Filter and an Oil Filter? Chapter 2: Types of Fuel Filters. What are the different types of fuel filter? Chapter 3: Fuel Filter Anatomy. What is the micron rating on fuel filters? How to measure the efficiency of a Fuel Filter? Chapter 4: Bad Fuel Filter Symptoms.Synology disable upnp
How do you know if you need a new fuel filter? When should a fuel filter be replaced? What are the symptoms of a bad fuel filter? Chapter 5: Fuel Filter Replacement.Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website like our supporting vendors.
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Iceman Member. My fuel filter base started to leaking the other day, and it is making it hard to start. Have to bleed it now to start everytime. I could only find the stanadyne part number for the heater O-ring: part nsn couldn't crossreference the other numbers to the GM part numbers.
Last edited: Feb 2, BlazerAdventure New member.The myth is that an automotive air filter should be changed about every 6, miles, or when it "looks dirty. The fact is that a certain amount of dirt in an air filter actually increases its filtering efficiency by reducing the size of the holes in the filter media which helps stop smaller dirt particles.
This means that instead of a maximum life of 6, miles, the typical air filter may actually last anywhere from 60, tomiles!
Air filter restriction is not time or miles dependent.2004 yukon no fuel filter
Mileage of as much asto as little as 5, miles have been reported when restriction is reached. It is important to know the highest full load restriction that occurred during the vehicle operation in order to service BEFORE the redline. After an element has reached its redline value, it only takes a little more contaminant before high fuel consumption and poor engine operation occurs.
Don't Dust Your Engine! We are pleased to introduce a new addition to its portfolio of filter monitoring products In routine use, air flows through the Air Line Filtertrapping particles. The Air Line Filter and Indicator ALFI protects against harmful debris and contaminants in high pressure air lines in a wide variety of industrial, transportation and on-site applications requiring compressed air or gas. Extreme clogging will extend the red indicator as device progresses towards full bypass mode until it is fully extended, locked, and requires replacement.
Build-up of debris will open the bypass to keep air flowing. When restriction becomes excessive, a bright red indicator deploys from the device, indicating it is time to change the filter.
Donaldson Company, Inc. Challenge Us. We will find a solution. When To Service? Use A Filter? Air Line Filter and Indicator End of Life Extreme clogging will extend the red indicator as device progresses towards full bypass mode until it is fully extended, locked, and requires replacement.
The indicators are available in: 1 single …. Electronic Pressure Sensors monitor various vacuum or pressure conditions ranging from cabin pressures to air filter or fuel filter restriction levels. Popular Tags. Popular Links. Popular Articles. How do air filter service indicators work?When the check engine light comes on in your car, you should probably pay attention to that.
Sometimes I would kill for a Holley carb and a mechanical fuel pump.
So the check engine light is turning on and off randomly. I pay no attention. Truck runs great. Happy happy joy joy.
This is going to go over well. Anyway, after a fairly long wait for the tow truck, because they themselves broke down, the Suburban was finally back in the driveway at Casa de Reynolds and I was hoping it was something simple. I tried everything there was to test, thanks to the great instructional videos that Airtex has on their website FuelPumpU. Damn it man! After talking to the guys at Airtex, and utilizing their tech support like I was the one paying them, I finally had to cave in as I realized that the only thing that was going to fix this was a pair of new fuel pumps.
The Airtex pumps showed up all wrapped nice and ready to be installed, with one exception. All the Airtex pumps come with new pigtails, with connectors and everything, if your car or truck may be one that needs a replacement.
Did I mention that the Suburban stopped running, when the fuel pumps both quit, after having filled it to the brim with gas? In truth I had burned around 3 gallons since filling up, but that still meant jillions of gallons of gas in the two tanks. Fun and excitement! To fully understand the job at hand, you need to understand the layout of the fuel system on the Suburban.
The rear tank looks easy to pull out, and in truth it is, except for the fuel fittings that attach to the pump in a spot where no human hands can reach. Remember, the chassis on these trucks are assemble upside down before the body is ever mated to them, so all of this stuff is easy during assembly. Not so much on disassembly. I had to buy two sets of fuel line tools before I had ones good enough to disconnect the lines that had been on there for nearlymiles.
Buy the good ones to start with. Several emissions components under the truck had to be disconnected, along with three fuel lines on the pump, and of course the wiring connector. Again, this tank is holding somewhere around 25 gallons of fuel at this point. No bueno. Like any good hot rodder, I used a floor jack, a piece of plywood, and all the profanity available to me in order to remove it, but I got it out.
Once it was out, the rest is a breeze. I needed to drive this truck the next morning out to the desert for some off road truck testing, and would have had to buy gas cans up the wazoo just to hold the fuel that was in them.
If they had not been full, I would have done these things. Sorry guys. Removing the pumps from the tanks is just like any other fuel tank on your hot rod.
6.5 Turbo Fuel System Diagrams (and advice)needed
Spin the locking ring to unlock the pump, lift it out, spill gas on yourself, and clean the surface that the o-ring sits in so that you are ready for installation of the new pump.Forums New posts Search forums. What's new New posts New resources New profile posts Latest activity.
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