Any motorist is aware of where the fuel pump is located. This small component is a real "heart" of the fuel diagram of any machine. Its uninterrupted work is important not only to increase the working resource of the car, but also for the safety of the driver with passengers. For timely diagnostics, knowledge of the structure of the fuel pump will be required. All manipulations can be done with their own hands.
Classification and fuel pump functions
To understand and eliminate possible problems with a fuel pump, it is important to know its device. This component of the motor circuit fuel to the motor. Faults of the fuel pump are caused by problems in other machine systems. Prior to the invention of this "worker" fuel moved along a special hose through gravity forces.
To regulate the volume of fuel, the gas station reducer is required. Therefore, checking the level of pressure is necessary in order to repair to be more efficient. Gearboxes are electrical and mechanical, this division determines the procedure for diagnostics and repair manipulations.
The principle of operation of the electric gearbox is pushing the fuel at a certain speed. To check the functioning uses an electronic system conducted by monitoring the ratio of air and fuel, the level of content exhaust gases. The launch of the electric benzone pump comes from the electric motor when the ignition lock is turned on.
Important: The old cars of the car had a given fuel movement speed.
Fuel pumps having mechanical deviceinstalled in all kinds carburetor cars. Fuel supply pressure in this case has a low level. The pump fastener is performed outside, while electrical models are mounted inside the machine.
It is worth noting that both types of fuel pump are installed on some machines. The function of one is the work with small volumes and high pressure, the first - large volumes and low pressure.
Diagnosis
The first alarming signal that characterizes the violation of the operation of the fuel pump is intermittent movement. vehicle. The appearance of this feature means that the repair is required.
Prolonged engine institution also testifies to certain problems in the fuel pump. In one "beautiful" moment, the motor can not start at all. The root cause of this is a drop in the pressure in the system, therefore, first of all, check the absence of leaks.
You can check the fuel pump device with a special indicator, which can be purchased in the auto parts store. Installation of this device is performed with your own hands according to the applied instructions. With a plugged engine, the pressure is diagnosed in the fuel network. Reduced pressure in 5-7 minutes to 1.6 atmosphere indicates problems in the fuel regulator or nozzle. The identification of the "culprit" is a stage that anticipates the repair itself.
Check manometer
To diagnose the operation of the fuel pump and check the pressure indicators, you can use the pressure gauge. The device must be connected to the fuel ramp and display on windshieldUsing the edge of the car hood. The inclusion of ignition is a start to fix the testimony to the manometer. The rate of pressure fluctuations from 300 to 380 kPa. After that, the car must be overclocked to the 3rd transmission and check again the instrument testimony. If the pressure level has not changed, it means there is no reason for concern, and the main component of the machine is repaired.
When changing the level of pressure in the fuel system, you should contact professionals.
If the car begins to stroke on the go, the reason most often lies in the electrician. Confirm or refute these fears can be tested by the gas station relay. Diagnostics can be held with your own hands, connecting the control light to the gas station. When the ignition is turned on, this light is 2-3 seconds to light up. In the absence of this signal, the repair of the electrical system of the car is required.
The fuel leakage is eliminated by elementary - replacement of gaskets, valves, diaphragms and filters. It is only necessary to know the fuel scheme device, the replacement itself does not cause difficulties even among lovers. Repair of the electrician is better to entrust the specialists of the car dealership or major service center.
Performance of repair work
In old models, carburetors and mechanical machines are installed fuel system. Such a device is less likely to break compared to injection types. In the last mounted electrical system and modern fuel pump. Electronic system Controls the level and fuel feed rate. Fuel pump functions is the transportation of fuel from the tank to the place of formation of the mixture, as well as the creation of the required level of pressure.
Perform any repair with your own hands is easier if the sequence of individual operations is known. First, it is required to check the device on the absence inside the fuel tank of the factory garbage (small metal particles), which can fall into the pump and output the latter.
Everything repair workconcerning the functioning of fuel pumps, can be divided into several directions:
1) When foreign particles are found in the fuel tank, it must be rinsed. If it is impossible to wash the whole garbage, the tank must be replaced;
2) The leakage of oil is a signal to check the connection site of the cylinder and gas station. Sealing gaskets of thermal insulation are also checked;
3) To remove the pump, it is necessary to disconnect the injection and supply of benzins, after which unscrew the fastening nuts and remove the washers on the springs. After that, it is possible to dismantle the fuel pump itself;
4) The malfunction in the pump may cause a deformed diaphragm. In this case, it needs to be strengthened with polyethylene film;
5) Machines having a large mileage may have a diaphragm sprite on the load. Repair - stretching springs with reverse installation in place.
This article answers the Australian Question: Is it possible to independently repair the fuel pump in the injection type machine? It not only can be done with his own hands, but does not represent anything complicated, which confirms the video:
Automobile fuel pump VAZ 2106 is one of the main components of the combustible supply system, which shakes fuel from the tank in the carburetor. Directly in the carburetor node, the formation of an aerosol mixture of fuel and air, which enters the power plant.
Repairs
To repair the fuel pump by car VAZ 2106 you will need: screwdriver with cruciform blade, shabra (or small tightness), core, small hammer.
1. Remove the head screws and remove the head with the valves, cover and filter. If necessary, remove the cover and filter from the head (see "Checking the health of the fuel pump by car VAZ 2106").
2. Press the diaphragm node, turn it into any side by 90 ° and.
3. Remove the diaphragms fixed on the pusher, and the spring of the gas station body.
NOTE
Further disassembly of the gas station housing is not an advantage, since the cost of acquiring and replacing damaged parts The lever mechanism is comparable to buying a new fuel pump. If there are cracks on the housing, the flange of fastening of the fuel pump is deformed, the parts of the lever mechanism are worn or damaged, replace the fuel pump. Damage to the lever mechanism is a fairly rare malfunction. Most often, the refusal of the benzonasos is caused by the failure of the diaphragm or valves.
4. Inspect the removed node of the diaphragm. If the diaphragms have oversight, bundle or at least small cracks, replace them.
HELPFUL ADVICE
It is more convenient to replace the aperture knot assembly. There is a diaphragm nodes unified for gas station produced by DAAZ and Saratov plant fuel equipment. They are supplied to spare parts without plastic outdoor remote strip. If there is no way to replace the aperture assembly assembly, disassemble it and replace individual diaphragms. They are fixed on the stock of the nut (and the shank of the rod). The outer remote gasket, located between them, is not fixed and easily removed.
5. Holding the rod for the shank, screw the nut and remove the parts of the diaphragm node from the rod, remembering their mutual location.
6. Collect the node of the diaphragms in the reverse order. At the same time, make sure that the holes in the diaphragms for the passage of the screws coincide, and the rectangular tongues on two diaphragms were directed in one direction.
7. To replace the valve, you will discount it from the head of the fuel pump, previously removed by an overwhelmed scraper or a kernel supphyl in three places (shown by arrows). After pressing the new valve, turn it out in other three places evenly located 120 °.
8. Check the planting of suction and injection pipes in the head of the gas station. If they are closely sitting in the head, replace it, as their loss during the engine operation can lead to a fire.
9. Check if the head flange is not deformed in the locations of the holes under the mounting screws. Deformation occurs with excessive force tightening force. In this case, between the diaphragms, the housing and head of the fuel pump arises a gap, which is not eliminated by the tightening of the screws through which gasoline will leak. Remunt the flange light hammer blows through a soft paint and take it on sandpaper. If it is not possible to completely eliminate the deformation, replace the head.
10. Collect the fuel pump in the reverse order. At the same time, orient the outdoor remote gasket so that the control hole in it (shown by the arrow) is located near the lever of the manual fuel swap to facilitate levers.
NOTE
Head mounting screws tighten evenly crosswise, without applying excessive efforts to not deform the flange. Pre-screw all the screws to a few thread threads, press down until the fuel punch lever is stopped and only after that finally tighten the screws. This needs to be done so that the diaphragm makes the optimal form and not stretched when the fuel pump is working, which will lead to a decrease in its durability.
Replacement
1. First of all, you need to take a cruciform screwdriver and weaken the tightening of the codes of the supply / discharge fuel hose.
2. Now you need to remove hoses from fuel pump fittings. I recommend pre-prepare the M8 bolts in order to close the hoses from gasoline leakage.
3. Then you need to turn the key to 13 two fastening nuts of the fuel pump.
4. Remove the pump with spills.
5. You need to remove the exterior adjustment gasket with the studs.
6. Then remove the thermal insulating space with the pusher.
7. And finally, we will reach the second gasket that you need to mark so that when the installation of the fuel pump does not confuse it from the first.
8. We establish a new pump in order to remove. At the same time, setting up each in their place. For reliable operation of the fuel pump, periodically check and, if necessary, select the thickness of the external adjustment gasket. To do this, we turn crankshaft The engine so that the pusher performed at a minimum value.
9. After installing the heat-insulating spacer with both gaskets, the fuel pump drive pusher must perform by 0.8-1.3 mm.
10. A laying of 0.27-0.33 mm should be installed between the cylinder block and thermal insulation spacer. The outer gasket (between the spacer and pump) is selected under the required pusher speakers. This gasket can be made independently, cutting it out of the sheet of a suitable thickness.
Why not shakes
Causes of no feed
Making advantage of the presence of fuel, filter cleanliness and patency, you can start the pump diagnostics. The causes of its failure may be caused:
natural wear from long-term operation;
violation of the integrity of the diaphragm;
stretching the springs and loss of its properties of elasticity;
accumulate on dirt valves;
loss of bandwidth filter due to clogging;
disorders of the contour of hermetic and others.
Before the owner of the VAZ 2106 it is worth choosing - how much way to go to restore the pump's performance.
The first option is the easiest and most reliable, but costly cost. On any decent hundred, there is an equipment that in the minimum time not only will measure the value of the injection at the inlet and incidence at the outlet of the gas station, but also determine the part that causes defects in the equipment.
The second option is not the easiest, not as fast, but practically free, if you do not count the time to it spent - do all diagnostic and repair work yourself in the garage.
Independent diagnosis and repair
The easiest and most proven method of checking the pump's working state is to disconnect the hose from the output and its hand pumping. One should only take into account that the pumping lever moves, the diaphragm should be at its upper point, and the pusher at the bottom of the eccentric.
If they stopped in a reverse position, one turnover of the handle of the manual factory will be enough to return the aperture and the pusher in the desired position.
With manual pumping, the fuel must be supplied from the pump of the jet into the path of the manual lever. The main thing when carrying out this procedure to raise a rag to the engine so that gasoline does not spray on the engine compartment.
To correct the internal defects, dismantling the pump. The procedure is not complicated. It is enough to disconnect the supply hoses of the fuel line and unscrew the two fastening nuts with the key to "13-h".
During the removal of the pump, it is necessary to show accuracy and not damage the gaskets. They are under the fuel pump three. Initially, a gasket with a thickness of about 0.3 mm is underway, then a gasket is underway, providing the heat insulation of the pump from heating the cylinder block, after which the thin laying of the seal is replaced, but only a thickness of 0.75 mm.
The method of selecting the thickness of the gasket is set to the height of the pusher output, which should be in the range from 0.8 mm to 1.3 mm. But between the basis of the adjunctness of the fuel pump and the thermal insulating gasket, a gasket with a thickness of no more than 0.33 mm should always be located.
Beginner drivers need to remember that when the gas station does not pump on the VAZ 2106 and disassembled it for repair, the re-assembly does not guarantee its performance. For the correct assembly installation of this part, certain experience and skills are needed, especially in terms of removal of the lumen between the mating details.
Installation
Now that gas station is removed, produce required repair or replace it. After that, you can start to install. Installation is made in reverse sequence. But besides this, it will also have to adjust the magnitude of the protrusion of the pusher stock. Prepare new gaskets that will be adjusted by the size of the stock, the caliper for measuring the magnitude and do the following sequence of actions:
The magnitude of the pusher must be measured with an installed sealing gasket and thermal insulation spacer.
Now that the value is adjusted, set the fuel pump in its place and connect fuel hoses to it.
Signs of malfunction
The most common faults of the fuel pump and not only - this is definitely the formation of leaks between the components of its corps, which occurs as a result of the wear of the sealing gasket, located between them. Due to its damage in the fuel pump, the tightness of the connection is disturbed, it begins to swing air, and the fuel supply to the carburetor is stopped.
Another cause of the fracture of the fuel pump can be called a gap (or other mechanical damage) of the inner membrane, which is why the fuel pump also stops performing the functions intended for it.
In the event of the need to repair the fuel pump, the most effective method is it full replacement New.
Another method can be called acquiring and installing a special repair kit for a fuel pump, they are sold in automotive stores. Unfortunately, the quality of these repair kits often leaves much to be desired.
If necessary independent repair Listed faults, to eliminate air from entering the fuel pump At the location of its sealing gasket, you can apply a thick layer of glue (for example, moment) in several layers, and give it to completely dry.
And if the membrane broke, cut three of the circular diameter from cellophane, and imposing them on a damaged membrane from above, press the fastening screw. After that, collect a gas station and check it in action.
Adjustment
Assembly
Installation is in the reverse order. Pay attention to the following points:
a) Try not to bend when the sensor float lever is installed;
b) for proper installation The float lever should be located perpendicular to the axial line of the car;
c) Lubricate the installation before installing rubber gasket pure fuel;
d) tags in the form of a shooter on the top cover of the assembly and the edge of the scene in the tank should be combined;
e) follow the correctness of the order of connecting to the assembly of hoses of feed and return the fuel (according to the marking applied when dismantling).
Discover such problems when the car can not move from the place or are surfing when the first transmission is turned on? It is clear that the grounds for this set may be eliminated, it will take a replacement of a fuel pump or a grid of coarse cleaning. Therefore, it should be sought up to the details and pay attention to the pump itself.
Petrol pump for old car models russian production It is easier to replace than to repair, and and. Of course, today in the market you can find the sets of spare parts to this so important for the machine to the machine, but this is just a waste of money, according to most of the specialists in the field of automotive industry.
The only details that should still be changed are valves and cuffs. This is explained by the fact that over time, the rubber loses elasticity, heels and there is a possibility that it will be.
Causes requiring replacement of gas station
Such an unit like a fuel pump may be at the most inappropriate time. Unfortunately, in most cases the quality of fuel is guilty.
Some drivers enjoy without thinking about the sad consequences for their "iron horse". This is explained by the fact that when using low-quality fuel, air is in the fence, so the pump is working on high revolutions And it is not cooled combustible.
If you are a driver from this category, then you should not be surprised that the fuel pump is constantly required. Other reasons of the pump malfunctions include roller wear, impeller malfunction and others.
Why do you need a car malfunction diagnostics
Many of the motorists know that it is located together with the filter and the pointer controlling the level of fuel. The fuel pump is installed in the car's tank, you only need to remove or omit down the back seat, after which you find a hatch, to surround all its fasteners and you will see the pump housing with the necessary parts that helps it function.
The replacement of the benzonasos is only after the diagnostic study. It is not necessary to produce it in running and in connection with your "sensations", you need diagnostics, because at first glance it is difficult to determine whether the pump is to blame for a car malfunction, or the reason for something else.
So, you have conducted a diagnosis and it still pointed to the fuel pump, then the replacement of the fuel pump filter and the aggregate itself. If a malfunction is detected only in the grid, then the pump is not recommended.
Signs of faulty benzoneasos
Of course, the diagnosis is certainly important, but at the beginning of the identification of malfunctions should pay attention to some manifestations that are observed due to the defective functioning fuel pump:
- the motor of the car cannot start or works with failures;
- outside sounds arise;
- during movement, the engine operation is broken;
- reduced.
New gas station
If you are in doubt which fuel pump is suitable for your vehicle, it is better to buy the same thing that you have, or choose it from another manufacturer, but in this case you should pay attention to fasteners. The situation is that they may not fall as a result of replacement.
In addition, the pumping nozzle of this unit is occupied direct or in the curved form. The new fuel pump must have the same pipe as the old one. Otherwise, the rubber hose will not be able to hoping for him due to the fact that other parts of the car will prevent him.
Tools required for replacing the gas station in the machine
The toolkit can be divided into several categories: for the replacement process itself, as auxiliary means, additional materials.
For the replacement process you need to have with you:
- keys of different sizes;
- flat and crusading;
- pliers;
- sliding tongs.
Auxiliary Tools:
- technical aerosol of universal purpose (Wadet, or WD-40) or another liquid;
- pump for swinging wheels;
- rag.
Additional (spare) materials:
- mesh and pump;
- fuel supply hose. It is useful in the case when the replacement of the fuel pump has long been produced;
- rubber sealing ring.
How to replace the fuel pump in the car
At the first stage it is necessary to put on gloves. Keep in mind that the vehicle fuel pump consists of a comprehensive assembly with a fuel consumption pointer and is located in the car's tank, at the top.
- Remove the hatch lid located in the car trunk compartment.
Perform actions to replace the fuel pump recommended indoors with good ventilation. The car must be removed from the heating devices and sources of fires.
- In the power system it is necessary to remove residual pressure.
In order to produce it, it should be removed from the battery a minus cable, but the car should be in the smooth area.
- Omit or remove the back rear seat And remove the floor cover.
- On the top of the configuration, find the wire connection area and disconnect them.
- Remove the plastic ring in the gas tank hole with sliding tongs.
So, the actions undertaken above are fulfilled, now you remain the last - it is to pull the fuel pump and replace it with a new unit.
- After the lens of the gasoline can be removed from and then remove the gasket.
It is necessary to bring an assembly thus so as not to injure the float located on the sensor. If damage to the float does not avoid or on it there are signs of fuel from entering it, it should be replaced with a new one. When this is not done, the sensor readings are shown incorrectly.
- Now you need to disconnect the lower glass, it is folded.
Typically, it accumulates a large layer of dirt. With the help of a vehicle, it can be removed. If you do not get a glass through the holes of the pump, as it falls into the benzobac, it can be removed using the dismantling of the seal manually.
- The next step is to remove the filter (mesh).
- With the help of pliers, you need to remove the locking pin with the guide.
- From the fuel pump to disconnect the hose.
In this case, it should be remembered that rubber can lose elasticity if the replacement has been produced long ago, so it is recommended to change the hose. To do this, cut it from the fitting in the upper area.
- Unscrew the fuel consumption pointer and remove it from the gas station housing, after which it is possible to remove the terminal.
The entire process of assembling the new fuel pump consists in reverse order of manipulations.
After replacing the fuel pump, you should connect and start it on a small period of time, then whether the fuel flows from all connections, if everything is fine, then you can close the lid and put the back seat.
Attention! Gasoline, located in the gas tank is explosive. Therefore, auto mechanics are strongly advised during the work on the replacement of the fuel pump to be very careful. Following this rule, you will secure yourself from trouble. Good luck!
I will try to collect all the available information.
The hatcher for accessing the fuel pump from the cabin is made in order to be able to repair, replace and diagnose the fuel pump and other elements of the fuel system in the tank without removing fuel tank. In a regular version, this can only be done by removing the tank, and remove it with gasoline is not the most pleasant / cheap pleasure. Those. In fact, when the fuel pump is malfunction, you can buy gas station in any village from VAZ 2110 and then calmly go.
Moreover, on some very solid cars of other brands, the hatchs are already doing at the factory, these are examples: Sitting for access to gas station from the cabin. (P) (message # 18084660)
Benefits:
1. It is possible to replace / carry out the repair of the fuel pump, the fuel sensor and other elements of the fuel system without removing the tank. Posted on 08/17/2013 incl. In essence, in a clean field. It will only be necessary to buy a turbine in the nearest store. Here is an example from life: Sitting for access to gas station from the cabin. (P) (message # 14418759)
2. It is possible to see how the fuel system in the tank functions. Example: Pressure in the fuel line, ramp (message # 10080584) And try to do it like something else!
2.1 You can check the voltage on the connector that comes to the fuel pump at the time of the problem and make the assumption of the problem in the fuel pump or in the electrician. (Posted on 04/13/2011)
3. Feel the smell of gasoline in the cabin if gasoline starts to peel through the gas station cover. If everything is normally functioning, then there will be no smell of gasoline in the cabin. Checked by many teammates.
4. 4 times a day to change the gas station. With the removal of the tank, this focus will not pass. I had to do this until I realized that gasoline leaves. See paragraph 2
Additionally: Removing the tank no advantages in comparison with the hole does not give.
Disadvantages:
1. It is possible to disturb the rigidity of the body. Very controversial. There is no evidence. There are also no examples.
2. Corrosion is possible in the area of \u200b\u200bthe carved hatch. Personally, I have a hint for 2 years.
2. Possible smell of gasoline in the cabin. See paragraph 3 of advantages.
3. You can cut into the edge of the left when unscrewing the fuel pump cover. See ways to unscrew the fuel pump covers. We can do it and not do it.
Truck manufacturing options:
1. With help Dremel. from Malish: Sitting for access to gas station from the cabin. (P) (message # 3056365)
2. Looking like a different fastening option from petrakov.: Sitting for access to gas station from the cabin. (message # 5001144)
3. A similar but with another fastening option from Feeler.: Sitting for access to gas station from the cabin. (message # 5368058)
4. With the help of chisel from evser. Sitting for access to gas station from the cabin. (message # 5521722)
5. With the help of a hacktone from martinok. Sitting for access to gas station from the cabin. (P) (message # 14003088)
Important: Posted on 06.05.2012
Before cutting the hatch, remove the rubber plug and make sure that the fuel pump is there. At models Ford Focus. ZX4 / ZX5 Fuel pumps are not under the rubber plug and here: Ford Focus ZX4 / ZX5 - American Focus since 2005. (P) (message # 8677564)
If you do not check, you can cut the hatch and not find gas station there, examples:
1. Sitting for access to gas station from the cabin. (P) (message # 4486373)
2. Sitting for access to gas station from the cabin. (P) (message # 12204198)
How not to doNo way I want to offend teammates:
1. "Cut the scissors on the metal and cut off the hose - with a red fitting that - now I do not know what to do" (from sDIK.) Sitting for access to gas station from the cabin. (message # 3349038)
2. "In no case do not use the screwdriver, when it did this process broke through the fuel supply hose is concrete, this is concrete." (From Efimov Dmitry.)
Sitting for access to gas station from the cabin. (message # 3502471)
3. "Randomly drilled a hole in the tank, what can be frozen?" (from Ante4ka.)
Sitting for access to gas station from the cabin. (P) (message # 12962322)
Ways to unscrew the fuel pump cover:
1. Using a crash strap. Running with Faststom Strap and stretches. Super! Neither a hint of the opportunity to be injured. I make a photo belt photo on the lid. In the photo, how to unscrew the cover to be spinning just in the other side.
2. Added 07.10.2012 with a special tool, for example: Cover puller fuel pumps Licota ATA-0560 Price about 1000 rubles.
Additional photos: Sitting for access to gas station from the cabin. (P) (message # 13191935)
3. Using a special key (Hand Made): Sitting for access to gas station from the cabin. (message # 3504613) (Thanks to the teammate Vasily.n.)
3.1 Option of the homemade key from Terminator4. (sizes) Sitting for access to gas station from the cabin. (P) (message # 13810798)
3.2 Option of the homemade key from Maikl-822. Sitting for access to gas station from the cabin. (P) (message # 12345166)
3.3 option of the homemade key from 72Dimedrol Sitting for access to gas station from the cabin. (P) (message # 12761397)
4. Take a bar, a screwdriver, a file, and the like. We rest in one end in the edge of the lid, and on the second end knocking. Important: In this way, it is necessary to be very neat, because You can break the lid or break the ribs, then unscrewing will not be for what.
Posted on 01.08.2013 Note: Before twisting the lid of the fuel pump with lubricant with lubricant, which would be easier to unscrew the next time.
Detailed instructions How to pull out the fuel pump:
1. Sitting for access to gas station from the cabin. (P) (message # 7695129) Thanks to the teammate ponomigor
