Replacing the fuel pump VAZ 2107 - step-by-step instructions

The VAZ 2101 fuel pump rod is the main part of the membrane drive

Now we’ll talk about what a VAZ 2101 fuel pump rod is, and what problems it can cause for a car driver. If you have not yet come across such a detail, then be sure to read it, a lot of interesting things will be told. Moreover, this is worth reading not only for owners of kopecks, but also for nines and tens, with carburetor engines.

The principle of driving the fuel pump is the same for all. And all the breakdowns, accordingly, are also the same, despite the obvious differences between the cars. Of course, the reliability of engines of eights, nines and tens is higher, but the rod still tends to wear out. Let's start with what a fuel pump on a VAZ 2101 is, and how it pumps fuel through itself.

A little about the design of the fuel pump

The inner world of a penny gas pump

The VAZ 2101 fuel pump housing consists of two halves. On the bottom there is a diaphragm drive lever. There are two small valves in the top cover - inlet and outlet. By the way, they are included in the repair kit. But it is better not to use it, since the effectiveness of replacing several components and gaskets is extremely low. As practice shows, even highly professional repairs will not give good results.

The fuel pump will still not work as it should. And if you think that the electric fuel pump on the VAZ 2101 can save the situation, then you are mistaken. These are unnecessary problems that you simply don't need. Such a fuel pump must be installed if an engine with a two- or seven-wheel drive (injection) is being installed. In all other cases, it is useless to do this - there are a lot of costs, there is no effect.

Therefore, the only correct solution is to completely replace the VAZ 2101 fuel pump. Its price in stores is 450-500 rubles, no more. The repair kit is cheaper, but the guarantee that it will pump the pump is small. But if you install a new one, the problem will disappear for several years. According to reviews from car owners, the most reliable fuel pumps for the VAZ 2101 are those produced by DAAZ. But it is worth noting that Pekar and Weber are also praised by drivers. True, it doesn’t happen every once in a while, sometimes a true G (marriage, in the sense) comes across. With repair kits the situation is even worse.

External view of the fuel pump of a VAZ 2101-2107 car

And if there is a chance to purchase a low-quality fuel pump, but it is small, then you can buy a repair kit of a very low grade. From my own experience, I will say that I personally purchased kits in which the valves either did not fit into their grooves at all, or fell into them like a spoon in a mug. I don’t know, it’s quite possible that fate doesn’t like me very much, but this happened not only to me. Therefore, I decided that the best way to fix the VAZ 2101 fuel pump is to purchase a new one. And install a new rod. And gaskets.

Symptoms that clearly indicate a faulty pump and rod

Fuel pump and gasket set

The main sign of a faulty fuel pump is that the engine begins to stall at high temperatures, and after stopping it does not start. It sits for a while, cools down, and only then is it possible to start the engine. Of course, another breakdown has a similar symptom - a violation of valve adjustment. Only in this case does it feel as if the engine is trying with all its might to pull the car, but cannot, it is beyond its capabilities. And when the fuel pump starts to malfunction, the engine simply stalls.

The reason for this is excessive heating. As we said, the VAZ 2101 fuel pump consists of two valves. Well, one or both became warped due to heating and stopped opening. Cool them slightly and you can continue moving. Remember how often you saw a wet rag thrown over a gas pump? Now you know what purpose this is for.

But there is also a VAZ 2101 fuel pump rod, a truly wonderful contraption. It is made of steel. And if in the Soviet years it was hardened, now no one needs it. The price of the stock is at least 25 rubles. Well, who will spend kilowatts of energy on a part whose final cost is 25 rubles? Nobody! What happens then? But an unpleasant picture emerges - the fuel pump lever simply erases the rod, reducing its length.

And if you have gaskets under the fuel pump housing, then you are just lucky! When you pull one out, the rod will protrude from the insert more. And that’s it, the pump will continue to pump gasoline normally. But what if there are no gaskets? Who knows what could happen, for example, they forgot to put them on? And that’s why the rod was worn out. What to do then? Try taking it out and inserting it the other way. You know, this action helped several times.

A sign that the fuel pump rod has worn out is that the car accelerates to a certain speed. I had such a thing that I drove around the city normally, but as soon as I got on the highway, my maximum speed was 90 km/h, and that’s all. You step on the gas, but the engine stalls, it doesn’t have enough gasoline. I released the pedal a little - it drives calmly and shows no signs of breakdown. Moreover, a pump rod malfunction cannot always be detected when driving around the city or at idle speed. A short-term increase in engine speed will not give the same effect as long-term driving at high speed.

Replacing the fuel pump rod

Installation location of the gasoline pump on a VAZ 2101 car

So, you need two gaskets to replace - thin and thick. To be honest, I don’t remember the exact thickness, but if you say so in a store, the seller will understand you. The fact is that there are usually no other gaskets available J. The main thing is to ensure that the new rod protrudes beyond the spacer by no more than 1.3 mm. But it is unacceptable for the protrusion of the rod to be less than 0.8 mm. Take the average value - one millimeter. This will be quite enough for the normal operation of the fuel system.

The fact is that with a larger rod overhang, the likelihood that the diaphragm in the VAZ 2101 fuel pump will break increases. Well, if the protrusion is smaller than 0.8 millimeters, then all the symptoms described above will appear. Please note that the gaskets are placed between the spacer and the engine block. There is no need to install them under the fuel pump housing. You can easily confuse them; they will easily fit there too.

That’s probably all that can be said about the VAZ 2101 fuel pump rod. All that remains is to mention a few words about increasing reliability. Before installation, heat it red-hot over a fire, this will slightly increase the strength of the metal and make it not so sensitive to the influence of the diaphragm drive lever.

The VAZ 2106 automobile fuel pump is one of the main components of the fuel supply system, which pumps fuel from the tank to the carburetor. Directly in the carburetor unit, an aerosol mixture of fuel and air is formed, which enters the power plant.

Types of fuel pumps for VAZ 2106/07 cars

The manufacturer installs DAAZ fuel pumps (Dimitrovgrad Automotive Plant) on VAZ 2106/07 vehicles. The main purpose of the pump is to supply gasoline to the carburetor in the required volumes. The pump is based on a drive with diaphragms, and stable operation is ensured by the simultaneous use of three diaphragms. The capacity of DAAZ gasoline pumps for free drainage can reach 60 liters per hour.

More modern VAZ models are equipped with Pekar gasoline pumps (St. Petersburg). Their performance is the same, but the increased tightness and resistance of the membranes to oil and fuel make the pump more efficient.

The VAZ 2106/07 fuel pump is located in the engine compartment . It is attached to the engine cylinder block. The convenient location makes it easy to dismantle and install the pump even for an inexperienced car enthusiast.

Design and principle of operation of a fuel pump

The basic design of the VAZ 2106 fuel pump can be seen below.

According to its principle of operation, the “six” gasoline pump is focused on creating excess pressure, which, regardless of the stage of engine operation, must constantly maintain the required level of gasoline in the float-type fuel chamber. The diaphragm is designed and developed such that fuel flow is stopped or reduced when the fuel line reaches a pressure limit.

The standard fuel pump is located on the left on a special boss of the engine block and is secured with studs through a thermal spacer and an adjusting gasket. This spacer also serves as a guide element for the VAZ 2106 fuel pump pusher, driven by an eccentric through the fuel pump drive, powered by the gas distribution mechanism in use. The length of the new fuel pump rod is 82.5 mm, the permissible value for operation is 81.8 mm; if this parameter is reduced, the product must be adjusted by selecting installation spacers or replaced with a new spare part.

For manual supply of gasoline using the pumping method, the product has a special lever, which is recommended to be used after a long period of use of the vehicle to fill the fuel line with fuel. It is capable of creating a pressure of 20-30 kPa with an injection rate of at least 60 l/h at a frequency of 2000 frictions (pumping) per minute.

Our online resource describes the design of the VAZ 2106 fuel pump under the nomenclature number 2101-1106010, produced at DAAZ in Dimitrovgrad. As an alternative, you can use a Pekar gasoline pump manufactured at the Saratov Fuel Equipment Plant. The design and development of the product was carried out by Pekar JSC from St. Petersburg.

By the way, many car enthusiasts praise the so-called. “VAZ 2106 plunger fuel pump”, which improves vehicle starting and operates with a high degree of reliability. A product of this type is nothing more than a Pekar gasoline pump, the top cover of which is made in a high style and resembles 2 cylinders connected to each other, on the end parts of which arrows in the direction of gasoline flow are stamped. The valves inside the product are very similar to plunger pairs, and with the light hand of car enthusiasts they began to be called “six” plunger fuel pumps.

Signs of fuel pump defects

Many car enthusiasts know that the fuel pump is a component of the V6 fuel system that repeatedly malfunctions or, in simple words, it malfunctions. Reasons: low-quality gasoline, clogged and lately replaced fuel filter, high loads on product parts, exposure to active ingredients due to oil and antifreeze leaks, low-quality rubber components, etc.

The main malfunctions of the fuel pump are a violation of the sealed conditions of the fuel pump, gasoline leakage and “the VAZ 2106 fuel pump does not pump,” i.e. failure of the product membrane. In this case, repairs “in the field” are possible, when drivers have, for example, to install high-density cellophane instead of the standard membrane, which allows them to get to their destination. A more civilized repair of the fuel pump for the “six” is to purchase a repair kit for the fuel pump and replace worn parts.

Content

Domestic classics have their vulnerabilities and common faults. Often, VAZ 2106 owners are faced with a malfunction of the fuel pump. If a malfunction occurs, there is a need for prompt repairs. Fortunately, the process of replacing the VAZ 2106 fuel pump is quite simple, which makes it possible to restore the operation of the fuel system yourself. In addition, spare parts for classic vase models are affordable. Therefore, if the fuel pump breaks down, you should immediately start replacing it.

There are several common symptoms that may indicate that your fuel system pump is not working properly.

The first thing that will most likely indicate a breakdown of the fuel pump will be a noticeable decrease in engine performance. If the vehicle randomly pulls away or has difficulty gaining speed, a possible solution to the problem is to replace the fuel pump.

The occurrence of extraneous sound during operation of the pump also indicates that replacement is inevitable. A working compressor operates almost silently, while roaring or other noise indicates a breakdown. As a rule, extraneous noise is also accompanied by unstable operation of the motor. Despite the menacing roar, the car begins to pick up speed with great difficulty.

If one of these factors occurs, it is worth performing a visual diagnosis of the fuel system element. If the pump has lost its seal and leaks of the fuel mixture can be seen near it, it will also need to be replaced.

The process of replacing a critical element of the fuel system is not particularly difficult. To successfully complete the job, you will need a sufficient amount of attention and a standard set of tools.

To perform the work you must have:

• Phillips screwdriver.
• The key is 13.
• New original fuel pump for VAZ 2106.
• Filter element.
• A set of new gaskets and clamps.
• M8 bolts.

Removing a VAZ fuel pump - the principle of adjustment (visual aid) PEKAR

Fuel pumps are one of the main components of a car. The task of the fuel pump

is the fuel supply...

How to quickly and correctly change the fuel pump?

All operations using the example of IZH ODA.

Replacing the fuel pump in a VAZ 2106 car

We carry out preparatory work, concentrate in one place the necessary plumbing tools and the new product to be installed. The fuel pump is replaced in the following order:

1. We loosen the fastening clamps with a figured screwdriver or wrench.
2. We disconnect the ends of the fuel line from the fittings of the product and then plug them to prevent fuel leakage.
3. We dismantle the fuel pump using a wrench.
4. We dismantle the thermal insulation spacer and the installation gasket.
5. The installation gasket should be changed, and the thermal spacer should be cleaned and placed in its original mounting location.
6. If repair of the fuel pump is required, it must be disassembled and worn components replaced.
7. If the product assembly needs to be replaced, then we place the gasket on the mounting studs, then install the “six” fuel pump.

The final installation of the fuel pump on the VAZ 2106 is carried out in the reverse order.

Replacing the fuel pump VAZ 2106/07

Replacing the pump on a VAZ 2106/07 is carried out in two cases:

• when its elements are severely worn and cannot be replaced;
• To increase the service life, the DAAZ fuel pump is replaced with a Pekar pump.

To replace the pump you will need:

• wrench 13;
• flat blade screwdriver;
• container for draining gasoline.

Dismantling the pump

To avoid burns, dismantling the old pump is carried out on a cold engine. The following actions are performed:

1. Use a screwdriver to loosen the clamp on the fuel supply hose and disconnect the hose.
2. The clamp on the fuel supply pipe to the carburetor is loosened - the pipe is removed

   .

3. A container is placed under the resulting holes to drain the fuel.
4. Using a 13mm wrench, unscrew the nuts securing the fuel pump to the cylinder block.
5. The pump, along with three gaskets, is removed from the studs.

Pump installation

Installation of a new or repaired pump is carried out as follows.

1. The installation site is inspected. Carbon deposits or dirt are removed with solvent 642, and the surface is wiped dry with a rag.
2. Three new gaskets are put on the studs - adjusting (the thickest), heat-insulating and sealing. The gaskets must match the brand of fuel pump.
3. A new fuel pump is installed and secured with two nuts. In order not to create a lot of pressure on the flange, the nuts are tightened alternately.
4. Two fuel supply hoses are connected.
5. The engine is started and the functionality of the pump is checked.

Video: replacing the fuel pump VAZ 2106/07

Even an inexperienced car enthusiast can repair and replace the fuel pump on a VAZ 2106/07. To do this, you only need a repair kit (or a new pump) and a minimum set of standard tools.

Removing and installing the fuel pump.

The fuel pump plays an important role in the car's power system and is an important link in the fuel supply chain from the tank to the carburetor. Removing and installing the fuel pump , as well as adjusting it, will require some plumbing tools. You will need a Phillips screwdriver, two centimeter rulers, an open-end wrench, or better yet, a 13mm spanner.

1. Loosen the clamp and remove the injection hose from the fuel pump nozzle.

2. Loosen the clamp and remove the suction hose from the fuel pump nozzle. 3. Using bolts whose outer diameter matches the inner diameter of the hoses, plug the hoses and tighten the clamps.

4.Unscrew the fastening nuts, and carefully trying not to damage the gasket, remove the fuel pump.

Pay special attention to the fact that each time after removing the fuel pump and replacing the adjusting shims, it is necessary to correctly adjust its position. Incorrect adjustment of the fuel pump can lead to a lack of fuel supply, or, conversely, to an increased supply and, as a consequence, to carburetor malfunction.

The numbers in the image show, under number one, a sealing gasket with a thickness of 0.27-0.33 mm. Under number two is a spacer designed for thermal insulation, that is, the simpleton does not allow the pump to heat up from the engine block. Under the number three an adjusting shim with a thickness of 1.10-1.30 mm or 0.70-0.80 mm is shown.

Install a new gasket before making adjustments.

Install the pusher into the heat-insulating spacer. As shown in the image, install the spacer assembly with the pusher on the studs. Place an adjusting shim 0.70-0.80 mm thick onto the pump mounting studs.

Press the gaskets installed on the studs and the heat-insulating spacer tightly to the cylinder block. Rotate the crankshaft and install the pusher so that it protrudes minimally.

The fuel pump is adjusted based on the diagram and indicators described below. As shown in the image, use rulers to set the protrusion length of the pusher. The length of the protrusion of the pusher is marked with the letter A. If dimension A is less than 0.8 mm, replace the adjusting shim with a thickness of 0.70-0.80 mm with another one with a thickness of 0.27-0.33 mm. If dimension A exceeds 1.3mm, replace the adjusting shim with a size of 0.70-0.80mm with another shim of increased thickness 1.10-1.30mm. Install the pump in the reverse order of removal.

Fuel pump repair for VAZ 2106

When you have the time and desire, you can repair the fuel pump on a VAZ 2106 with your own hands. In this article we will tell you in detail about self-repair of the fuel pump. Fuel pump repair for VAZ 2106

You can clean (replace) the strainer and replace the diaphragms without removing the pump from the engine.
But for ease of operation, it is better to remove the fuel pump and disassemble it on clean paper or cloth. Note that if you do not have time for repairs, you can simply replace the fuel pump on the VAZ 2106 with your own hands.
1. Using a 10mm wrench, unscrew the bolt securing the pump cover.

2. Remove the cover and carefully remove the mesh filter.

3. Inspect the intake valve (to do this, press on it with a thin screwdriver), if necessary, correct its position in the seat. We wash the filter in solvent and blow it with compressed air.

4. Use a Phillips screwdriver to unscrew the six screws connecting the upper and lower halves of the pump housing.

5. Then we separate these parts.

6. We check the exhaust valve in the same way as the intake valve. We wash the upper part of the body in gasoline and blow it with compressed air.

7. Rotate the diaphragm assembly 90° and remove it from the bottom of the housing. Remove the spring from the rod.

8. Use the “8” wrench to unscrew the nut.

9. Then we remove sequentially: the upper steel cup, two working diaphragms, the outer and inner spacers, the lower cup and the washer.

10. To avoid damaging the safety diaphragm, which over time sticks to the body and gasket, when removing and disassembling the pump, separate it with a thin knife or flat probe.

11. Having cleaned the filter and replaced the torn diaphragms, we assemble the pump in the reverse order of disassembly.

12. Install the strainer into the pump housing so that its hole is located above the valve. The flange of the filter hole should fit into the valve hole.

13. After assembling the pump, we check its functionality. We lower the pump inlet fitting into a container of gasoline and press the manual pumping lever several times. In this case, a pulsating stream of fuel should appear from the outlet fitting. This means that the pump diaphragms are intact.

14. Again, lower the pump with the inlet pipe into gasoline and, plugging the outlet fitting with your finger, use the manual pumping lever to create pressure in the internal cavity of the pump. After 10-15 seconds, releasing your finger, check the presence of residual pressure in the pump - gasoline should come out in a stream. If it is not observed, check the tightness of the connections of the body parts and valves. If tightening the screws fails to restore the tightness, it is better to replace the pump with a new one.

Do-it-yourself repair of the fuel pump on a VAZ 2106 has been successfully completed. Enjoy the trip.