The fuel line consists of a large number of element. One of them is a small detail in the form of a cylinder. Its main task is to remove various garbage, rust and other particles that may be in the fuel tank. The cleansing function of the element becomes possible due to the presence of special filtered paper. Therefore, it is important to update the device in a timely manner, especially since the price for replacing the fuel filter (TF) allows you to do this.
Purpose of fuel filter
It is now very difficult to find high-quality fuel. In most cases, gasoline and diesel fox are diluted to get more profits. And if there were no TF in the car, unclean fuel would fall into the engine.
And this would cause irreparable harm to the motor, as they can fail the nozzles and the pump for fuel supply. Depending on the quality of the fuel, 1 or 2 filters are installed (on carburetor cars One detail is enough, and two should be installed on diesel).
It is worth noting that the type of TF depends on the type of engine. So, the engine is distinguished:
- Injector type. Injection fuel mixes The cylinders are carried out under very high pressure in the cylinder or intake manifold using nozzles. Therefore, all elements fuel system Must be metallic. And the filter can be made of steel. Joins by twisting on a special thread.
- Carburetor. In this case, low pressure is created in the system, so the product does not have to be metallic using plastic filters.
- Diesel. Since the wasolar contains a large number of impurities, it must be cleaned with special care. Therefore, 2 appliances are installed at once - the main and optional one.
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The device consists of a grid, selecting large particles. It is also equipped with an element for thin cleaningnecessary to eliminate very small particles.
Replacing the fuel filter should be performed when one of the details are deformed. Otherwise, particles of garbage will fall into the fuel system.
Place TF in the fuel system
Before replaced fuel filter, you need to know exactly where it is located. To do this, you need to open a book with technical characteristics car. It should contain the exact location of TF. As a rule, it is installed inside fuel tank, under the hood or on the bottom.
Before removing the fuel filter, you should pay attention to which side it is installed. Then the replacement process proceeds quite quickly in accordance with the instructions. During the installation, it is important to properly place the fuel filter - the arrow can watch both on the right left and left to right. It all depends on specific model car.
How to understand that it is time to change the filter if the car is badly started
The replacement of the gasoline filter is mandatory if:
- The engine often stalls, but after that the machine easily starts.
- The amount of fuel consumed is increasing.
- The power of the vehicle is reduced, it has low thrust.
- The car twitches when lifting on the hill.
- Automatic gearbox incorrectly switches the speed - too slowly or includes not the speed.
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If one of the above problems appeared, it is necessary to buy a new filter and replace it.
What depends on the frequency of replacing the fuel filter on the injector, diesel and carburetor
How often should TF replacement? It depends on the features of the vehicle, as well as from the type of engine. Again, you need to refer to the vehicle's passport. It indicates the frequency of replacement depending on the mileage, only from this figure should be taken 10,000 km, because in Russia bad roads and not better quality fuel.
That is, if the passport states that the fuel filter replacement interval on the diesel engine is 50,000 km, then in fact it will be changed when overcoming 40,000 km.
Algorithm for replacing the fuel filter with your own hands
Installing the fuel filter is a fairly simple process. For its implementation, it is necessary to prepare such tools - a set of keys and screwdrivers, rags. You also need to purchase a new filter in advance, preferably from the manufacturer of the car brand. The cost of the fuel filter is different - from 300 to 3000 rubles.
During the replacement, it is necessary to adhere to such recommendations:
- The procedure must be carried out in the fresh air, because when working in a closed room there is a danger of an explosion.
- It is impossible to be a fire next to the fuel system. Even a cigarette can cause an explosion.
- Before starting work, remove rechargeable terminalsso that the sparks do not appear.
- If the system is too long pressure, it is desirable to reduce it before starting work.
As a rule, in diesel and carburetor cars, TF is located under the hood, and in injection - in the tank. How to change the fuel filter in the tank? Just as in the event that it is located under the hood. First, it is necessary to remove the fuse with fuel pump And wait to the engine stalls. Due to this, pressure will disappear in the system.
Then it is necessary to remove the Accord terminal to prevent self-burning. Now you should remove the filter by unscrewing the bolts or breaking the rivet.
Not to confuse the location of all component elementsIt is recommended to photograph the fuel filter to the phone.
The filter must be wrapped with a cloth, since a small part of gasoline can be found out of it. The new filter must be installed in the same position as the old one. Then you need to connect the gasoline, install the fuse and connect the battery terminal.
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The importance of replacement in the shortest possible time
If you allow excessive clogging TF, the engine may not start at all. After all, the faulty device will be badly filtered by gasoline, which leads to damage to a different nature.
It is possible to replace the element in the service station or independently. The cost of replacing the fuel filter in the car service is about 3000 rubles. The car mechanic can show the replacement of the fuel filter, so in the future it can be performed independently.
Why after replacing the car does not start
The machine may not start the first time after replacing the filter. After all, the pressure was lowered in the system. It is advisable first to turn on the ignition for a minute, but only after that try to start attempts.
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A distinctive feature from the set is the absence, since the mixture of fuel and air in the diesel cylinders is flammable independently (from strong compression and heating). At the same time, there is a need to supply fuel to the combustion chamber under high pressure.
Now you can return the fueling nuts of the fuel lines to the FLAD fittings, after which the tightening is made. The engine must be continued to twist the starter, parallel to the fuel liner nuts are put on the nozzles.
At the same time, the nuts are tightened only when they begin to flow fuel from under them. Previously, the tightening can not be done (for example, first the nuts on the nozzles are twisted, and after that on the pump fittings). In this case, the air will need to pump enough long, during this time it is quite possible to discharge the battery.
Also note that the starter every 15 seconds. Continuous work is recommended to give a breather of about 60-120 seconds. Ignoring this recommendation can lead to a starter breakdowns or a significant reduction in its resource.
Other methods of pumping fuel system diesel engine
So, above we looked at the main way, how to pump the fuel system of diesel. At the same time, many specialists and experienced motorists separately indicate that in some cases such attempts to pump the pump may have serious consequences for the power system.
Note, the reason for such fears is that if there are mechanical damage, pumping damage in this way can cause irreparable damage. Let's consider other existing ways.
- First of all, the bolt is weakened on the fuel feed line (the so-called "reverse"). Next should closely monitor how fuel will go. If air bubbles are visible, then this means that the system is delivered.
If so, you can take a simple pump for pumping tires or compressor. Next, the hose is removed from the fuel pump, the air pump hose is placed instead. The main idea is that pumping is happening, which allows you to increase the pressure in the system. This pressure makes it possible to pull the diesel fuel in the fuel pump.
- Another method of pumping can be characterized as "household", as it involves the use of a homemade vacuum cleaner. The main thing is that the device has sufficient power.
So, the fuel filter is first removed, its housing is dried. Then the individual elements are wiping, then the reverse assembly is made. Next, you need to detect two fittings on the filter housing. One of the fittings is needed for draining diesel fuel, and the other is suitable for pumping.
Cooking the vacuum cleaner, also need a regular medical syringe and a hose of 30-40 cm. For these purposes, it is recommended to use a transparent type of hose. The syringe is inserted into the hose, and the other end of the hose is put on the pump fitting.
Next of the syringe is pulled out the piston, and the tube of the vacuum cleaner is inserted into the syringe. The main thing is to achieve reliable fixation and dense landing. Also, the locations of the compounds can be sealing, putting the segments of the hoses of different diameters, winding the isolent, etc.
Now you can unscrew the fitting slightly, after which the vacuum cleaner is included. A few seconds in the syringe it will be possible to see a yellowish foam. This is a mixture of diesel fuel and air. Further pumping is reduced to instead of the syringe foam filled with clean diesel fuel.
Consider another solution that allows in some cases to quickly pump the fuel system of diesel. To do this, it is enough to fully fill the fuel filter housing diesel fuel, after which the engine starts. Next you need to give a motor to work on high revolutionsAs a result of which the power supply system occurs.
Let's summarize
As can be seen, the main way of pumping diesel system Fuel feeds is a time-consuming procedure that requires certain skills. It is important to comply with the purity and prevent dirt, dust or garbage in the pump.
You still need to monitor the effort (torque of the tightening) when twisting bolts, nuts and fittings. It is also necessary to observe increased caution when taping fuel highways. The non-professional approach and negligent treatment can lead to breakdowns, cracking, breaking threads and other consequences.
What do you need a rolling pump low pressure in the system diesel engine. Principle of operation and TNND device, types of pumps, features.
Many motorists acquire Fuel Free to reduce their fuel costs, but when it comes to installing almost everyone has some difficulties. It is easy to find how to install Fuel Free, given the simplicity of the design of this unique device.
Design of device
Installing Fuel Free Case is very simple, if you look at the features of the design of this device. The thing is that Fuel Free is a magnet consisting of 2 halves. This design allows you to install the device on any vehicles, including mopeds, passenger and trucks, scooters, motorcycles, boats and hydrocycles and even on buses and agricultural machinery.
The action of the device is based on the ability of the magnetic field to split the existing clots of molecules, which are formed in hydrocarbon fuel when cooled and heated. The elimination of these molecular clots allows to achieve maximum fuel use efficiency. In the middle of the overalls of the device is a small deepening, intended for passing the fuel hoses through it. Included with a magnet there is a special, adjustable strap that allows you to install FuelFree fuel economker on hoses of any diameter. Trying to figure out how to install Fuel Free fuel economy, instructions should be studied first.
Installation of the device
It is noteworthy that top scores The device shows when it is installed at least at 15 cm from the inlet of the fuel hose into the engine. Such a location also allows to protect the engine metal from the effect of such a strong magnet, but at the same time achieve maximum efficiency of the fuel economy. Installing the device, as a rule, does not occupy a lot of time. Before installing Fuel Free, you should carefully clean the fuel hose from the dirt, then you need to take two halves of the magnet, which allows to reduce fuel consumption, attach them to both sides of the hose and skip a special locking cord into the existing ears. One end of the cord should be skipped into a special lock located on the other side of the instrument and snap it.
Reducing fuel consumption
A similar design allows you to ensure that the magnets are tightly sealed to the fuel hose. No need to delay the fixing strap of the magnet too much, but it should be verified that the magnet does not transmit the fuel hose. Thus, the installed Fuel Free device should not be too tightly adjacent to the hose, but it should not be "traveled". Insufficient fixation of the magnet often becomes the reason that the device flies from the hose during the ride. If you wish, you can install several Fuel Free devices at once to achieve maximum savings. Since installing FuelFree fuel is very simple, many owners can be pretty to save, without resorting to the help of car service workers. Proper installation The device guarantees a decrease in fuel consumption by about 10-20%.
Increase engine power
The device begins to act immediately after installation. When the fuel passes through the field created by neodymium magnets, there is a decay of existing carbohydrate clots. In addition, there is an attachment to the existing hydrocarbon compounds of oxygen molecules, which contributes to an increase in combustion potential. This largely increases the engine power. A properly installed device cannot cause any harm to a car, but it allows you to achieve significant savings and increase the power of the engine. Given the simplicity of the design of the device for saving Fuel Free fuel, it can be installed absolutely any person.
The car in its life consumes the inconspicuous amount of fuel. If taken average flow fuel for 10 liters per hundred kilometers run, then only for warranty periodequal to most producers 100,000 km through the fuel system car will pass Approximately 10,000 liters of fuel. Now imagine how much mud can bring such a quantity of fuel to the system.
What cars install the fuel filter?
Fuel filters are installed on gasoline cars, and on diesel. Moreover, the latest filtering quality requirements are higher than that of gasoline. It is caused by the fact that the pressure under which the fuel is injected into the diesel cylinders, much more than a similar parameter from gasoline fellows. And large pressures require smaller gaps in pumps and nozzles; At the same time, the particles skipped by the filter must be much less than the magnitude of the gap in order not to cause wear.
How is the fuel filter?
Fuel filtering by modern cars - Two-stage. In front of the gas-pumping of the polluting particles is engaged in a small-scale caproic receiving grid. And then the final particle screening of the size of over 10 μm (for gasoline) performs a fine cleaning filter.
Where is the fuel filter?
As for the placement of the filter of a fine cleaning, the opinions of automakers have changed over time. Initially, all filters were installed under the bottom of the car or in motor compartment And they were easily accessible to replace.
Then (increasingly) the filter began to install in the fuel module. This decision, of course, is more compact and convenient for producers of current "disposable" cars. But the replacement of the filter is either not provided at all, but only as part of the module, or implies a large amount of work on dismantling and fully disassembling the module. Moreover, the fuel module in some cars can not be removed without dismantling the tank, and this is even more ambitious work.
Fuel filter for diesel
So far, we are talking about gasoline filters. Diesel fuel filters are always installed separately from the fuel tank, because they, in addition to more frequent replacements, also need in water sensors, a plug for draining water and, often in the heating system.
What will happen if the fuel filter clogged?
Displays filters, of course, dirt falling into the tanks of our cars with fuel. And by no means oil refineries of the faults. Fuel can be dirty when stored and pumping. A clogging of the fuel filter driver will feel on the behavior of the car, and first on those modes where the instantaneous fuel consumption engine is maximum. These are motion modes with high speeds and intensive acceleration. At the same time, the engine will lose cravings, working with interruptions, although on idling And the "calm" modes will not look decently.
How often do you need to change the fuel filter?
The frequency of the regulatory replacement of the filter is primarily determined by the manufacturer of the car. One manufacturers are 30,000 km, others have 120,000 km run. Moreover, frequent replacements usually recommend manufacturers that put a filter outside the fuel tank. Change the fuel filter for ahead of time only if you are sure that extraneous mechanical particles or a large amount of water got into the tank. In this case, the tank should be rinsed, and it is possible to replace the fuel pump.
The fuel filters of diesel engines is most difficult to fall in winter: after all, thumping fuel should be held through the filter material. That is why preventive filter replacement for diesel car It is better to spend autumn. It is caused by the fact that the bandwidth of the filter, already reduced by clogging with solid particles, will be insufficient for skipping cold, thickened fuel.
The frequency of replacement of gasoline filters of some manufacturers, thousand km:
- Volkswagen 30 (remote filters)
- Renault 120.
- Kia 60.
- Hyundai 60.
- LADA 30 (remote filters), 120 (built-in filters)
- Place on proven, and even better - branded gas stations.
- Try not to fill the fuel into the tank immediately after the fuel dropped on the gas station, because the fuel was swapped and the dirt is more likely.
- Do not pour fuel into old, rusty cans.
- Change the fuel filters on time - then the malfunction will not find you in a long road.
- Rinse the fuel accepted mesh at the entrance to the pump: thereby extending its service life.
Tell us in the comments, did you faced the problems associated with fuel filters? Good luck on the roads to everyone!
Replacing the fuel filter refers to regular maintenance. The proper care for the fuel system with the fuel filter replacement extends the life of the fuel pump. The filter captures the impurities contained in the fuel and over time clogs, so the efficiency of work is reduced. When the filter climbed the filter decreases the pressure and volume of the entire fuel system. If the car begins to lose power, the cause of a contaminated fuel filter may cause the cause. The filter replacement should be performed in accordance with the recommended manufacturer interval.
Note: This manual is applicable only for cars with gasoline engine. As a rule, fuel filters of diesel vehicles are much larger, and the fuel system itself has a more complex design. The pressure in the diesel fuel system is much higher: modern rechargeable fuel systems operate at a pressure of more than 1000 bar. Random reset of such a high pressure can lead to injuries.
Steps
Part 1
How to reset the pressure in the fuel system- In the absence of a reference book, try to find the required information on the manufacturer's website.
- Often the fuse of the fuel pump is located in the block, which is located in the cabin.
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Disconnect fuse fuel pump. Open the desired fuse block and use the circuit shown on the block cover or in the owner's directory to find the fuel pump fuse. Use oscillators or plastic tongs to remove the fuse.
- Without fuse, the fuel pump will not turn on when the engine is started.
- In the fuel tubes, which go to the front of the car, still remains fuel and pressure.
- You can also find the location of the fuses on the manufacturer's website.
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Install the neutral gear. Despite the lack of supplying fuel from the tank to the engine, a small margin remains in the tubes, which is enough for the car to be drove off. Automatic box Transmissions should be installed in a parking position, and mechanical - to neutral and enable hand brake.
- If any transmission is enabled, the car will move from the place.
- For standard transmission, be sure to turn on the manual brake. For automatic checkpoint, this step is not required, but also recommended.
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Turn on the engine. Insert the key to the ignition lock and turn to start the engine as usual. The engine will easily start and starts to consume fuel, which is still left in the fuel system from the fuel pump.
- If the engine stalls after several revolutions, then the reason may be insufficient pressure In the system for delivering fuel to the engine.
- If the engine is turned off, then no longer need to reset the pressure.
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Leave the engine on about a minute. Depending on the type of fuel system of your car and the average fuel consumption, the total time of operation with the disconnected fuel pump can be very different. No need to wait until the engine turns off. Turn it on one or two minutes, and then turn off.
- Pressure reset when the fuel pump is turned off quite quickly.
- If you wait until the engine stalls, then it will be difficult to start it again.
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Install the fuse fuel pump in place. Resetting the pressure in the fuel system, disconnect the engine and install the fuse fuel pump. Close the fuse box with a lid and set the place all removed interior trim elements.
- Before installing the fuse, do not forget to turn off the engine.
- Do not start the engine after installing the fuel pump fuse.
Part 2
How to remove the old fuel filter-
Disconnect the battery. The engine will not need to be included until the completion of work, so you should turn off the negative battery terminal. Remove the cable with a negative clamp so that the engine does not turn on during the filter replacement. Manually or with the key loosen the nut that holds the cable on the negative terminal (you do not need to remove the nut completely).
- Disconnect the battery so that the engine does not turn on during the filter replacement.
- Take a negative cable away from the battery so that it cannot accidentally touch the terminal.
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Find the fuel filter. There are two common filter options in the car, so use the maintenance manual. Most often, it is located on the fuel line under the car immediately behind the fuel pump. In some cases, the filter can be located in the engine compartment on the pipeline leading to the fuel ramp.
- Sometimes the fuel filter may be elsewhere, so use the directory.
- In some vehicles, access to the fuel filter is carried out from the cab.
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Lift the car by jack. If the fuel filter is under the machine, you need to raise the car to the jack. Install the jack in a special location for the stop and turn on the pump or start rotating the lever to raise the car (depends on the type of jack).
- After lifting on a sufficient height, set the supports to work safely under the car.
- Never rely only on the jack and install the supports that can withstand the weight of the car.
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Put the pallet or bucket for the fuel filter. Despite the discharge of pressure in the system, a small amount of fuel can still remain, which can shed when the fuel pump is disconnected. Use a bucket or pallet so that the fuel does not drop and damaged on the floor of the garage.
- Do not mix fuel with butter or coolant, which will be reused. Gasoline should be collected in a separate container, and then pour into the canister.
- Gasoline can crush some types of plastics, so use the tank only from suitable materials to prevent fuel leaks.
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Remove the clamps that hold the fuel filter. As a rule, the filter is fastened with two plastic clamps. Find the clamps on both sides of the cylindrical fuel filter and find them with a flat screwdriver to remove from the grooves. It is recommended to buy spare clamps along with a new filter, as they can break through the dismantling process.
- Clamps that hold the fuel filter are made of thin plastic, so they are often broken. If you managed to remove them safely, then new clamps can not be bought.
- New clamps for the fuel filter can be bought at any parts of the spare parts.
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Disconnect the fuel hoses from the filter. Remove the clips and slide the fuel hoses to remove them from the nozzles at both ends of the filter. Tilt the ends of the hoses in a bucket or pallet to merge the remains of gasoline.
- Do not forget to put on glasses and gloves to protect your eyes and hands from splashes.
- Make sure that the gasoline does not spill on the floor of the garage.
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Remove the fuel filter from the bracket. The filter is probably fixed with a metal bracket, which is located around the outer case. Disconnect both fuel hoses and slide the filter to the front of the body to remove it from the bracket. The filter has the shape of the bell, so it can be put forward only in one direction.
Find the fuse block. To reset the pressure in the fuel system, you must turn on the engine with a non-working fuel pump. Find the fuse block and then disconnect the fuel pump fuse so that it does not turn on with the engine. Almost always the fuse block is located in the cabin of the car or under the hood. Use your car owner directory to find out the exact location of the unit on your vehicle.
