Bendix is ​​an integral part of the starter and is responsible for the coupling between the engine direct current and engine internal combustion... The starter should not be in constant contact with the motor, its design is not designed for such loads.

After reaching a speed of 40-50 rpm, the engine of the "tens" is started, and the speed of rotation of its shaft increases sharply. The Bendix is ​​a kind of safety mechanism that establishes and breaks the connection between the shafts of two motors, and it itself wears out every time. Over time, the VAZ 2110 starter bendix has to be changed to a new one.

The bendisk (or freewheel) has several different variations, however, the VAZ 2110 starter uses a traditional, time-tested option. The clutch consists of two flat rings, between which steel cylinders are located. The working gear of the VAZ 2110 starter comes with nine teeth. One of the rings is attached to the starter transmission shaft, the second is connected directly to the working gear. One of the rings has slots for the cylinders. The teardrop shape of these slots is a key factor in the operation of the bendix.

When the traction relay pushes the bendix and the gear engages the flywheel, the rings are not rigidly coupled. If you just twist the bendix by hand in one direction, then it will scroll freely. However, in the other direction - no.

The moment the starter motor starts its work, the inner ring scrolls and the cylinders roll into the narrow part of the slots. The rings are locked together and work as a single piece.

When the car engine starts, it sharply increases its speed, significantly exceeding those of the starter engine. At this moment, the outer ring of the clutch is shifted relative to the inner ring, overtaking it, and the cylinders roll into the wide part of the slots, where they move freely. Then the outer and inner rings rotate independently. The starter works idle, without feeling an extra load on itself.

If the starter has a problem, or is used incorrectly, then soon it will be necessary to replace the VAZ 2110 starter bendix. Firstly, the starter "ten" is mounted on only two nuts, not three. If they are poorly clamped, then severe vibrations occur. Over time, this leads to a pitted condition of the gear. Secondly, the vibrations can also be caused by the broken liners of the starter transmission shaft when the shaft "runs". All this leads to rapid wear gears, and parallel wear of the flywheel ring.

The price for the VAZ 2110 starter bendix is ​​not high, and the purchase new part for replacement is quite justified... Compared to replacing the armature or starter winding, replacing the bendix is ​​very simple and cheap. Wear occurs even when the starter is generally operating normally. From constant friction and jerks, the cylinders and slots break, and at some point the rings simply stop jamming together. The starter motor starts, operates normally, but the car engine does not crank up.

If it was determined exactly what is required for the VAZ 2110 starter bendix replacement, you need to drive to the overpass either inspection pit... Before removing the starter, you must disconnect the negative terminal on the battery. The next step is to disconnect the control wire from the pin traction relay.

The starter itself is attached with two 15 mm nuts, which are best unscrewed while under engine compartment.

The starter is quite easy to disassemble. Two covers and the body are tightened with two bolts, by unscrewing which we get access to internal parts devices. Having reached the transmission shaft with the bendix, we take it out and remove the pushing lever. You will need an open-end wrench, the size of which is approximately equal to the diameter of the shaft. The coupling is held on the shaft by a stop ring at the front of the shaft.

Rested back shaft on a hard surface, put the key on this ring and with a light blow of a hammer move it towards the bendix. There is a spring-loaded retaining ring under the stop ring. It can be removed with a flat screwdriver. After that, the restraining ring and bendix easily come off the shaft.

It is very important to know the procedure for removing the bandix. In addition to the fact that the car owner himself will be able to replace the part in case of breakdown, he will also be able to save money when contacting a car service. If it is known for sure that the culprit bad job the starter motor is a damaged bendix, then this specific reason can be indicated in the workshop. Otherwise, the masters may well completely change the starter, without really arguing for their decision.

The cost of a new gear starter for the VAZ 2110 is about 2,000 rubles. For a VAZ 2110 starter bendix, the price is approximately 200 rubles. For the price of replacing the entire starter, you can change the bendix ten times. The same saved amount can be easily invested in other parts of the car.

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Starter repair usually takes place on old cars, since this unit is quite reliable and serves for many years without breakdowns, but no one is immune from low-quality parts and assembly. The most common malfunction is burning of the contacts on the retractor, there may also be a malfunction in the overrunning drive clutch or wear contact brushes... Disassembling the starter is not difficult and requires a small set of standard tools.
The first thing to do is.

After removing the retractor, check whether the bolts are closed by the contact plate. To do this, we push the anchor inward until it stops and measure the resistance with an ohmmeter on the contact bolts. If it is absent, then we change the relay or repair it.

If you had a breakdown of the traction relay, then the disassembly ends here, but if everything is more serious, then we proceed to the next stage. To replace the brushes, anchor, bendix, as well as parts of the starter gearbox, you will need to completely disassemble.

Repair of the starter gearbox VAZ 2110, 2112, 2111

The gears that are inside wear out over time, metal chips appear and the lubrication property deteriorates. The gearbox must be well lubricated to reduce wear on parts.

The brush holder is the easiest to replace as an assembly.

When installing the brush holder, bend the clamps and take out the springs.

In order to check the anchor on possible defects we take it out of the case.

We check the condition of the winding using a 220 V lamp. When we apply voltage to the collector plate and the armature core, the lamp should not burn. If it is on, then the anchor must be replaced.

When the starter torque slips and does not rotate the engine shaft, then one of the most probable malfunctions is wear or breakdown of such important node like bendix. A knot that disengages the starter and the car engine at the moment when the engine starts ...

In fact, the name of this part car starter- pure amateur performance of domestic drivers. After all, classical engineering - technical name a node that ensures the separation of the starter shaft from the engine shaft at the time of its start - an overrunning clutch. And this name fully reflects the essence of the action that produces this detail... And the popular name of this mechanism, which is based on the principle of an ordinary ratchet, was given in honor of the American inventor Vincent Hugo Bendick, head of the Bendix Corp. corporation. It was he who at one time invented and patented a unit that allows at the time of launch to disconnect a small electric motor, which spins the shaft of an internal combustion engine.

The freewheel is the real name. They also call her a clutch - a ratchet or a ratchet

Be that as it may, in order to understand the nature of the malfunction, damage in this mechanism, when the bendix slips (that is, the starter turns idle, slips and slips without engaging the engine), you need to understand the function and the principle by which this mechanism works. In fact, everything is very simple. It serves as a kind of clutch, working in one direction only, jamming if an attempt is made to turn it in the other direction. Moreover, with a clutch that should come out of engagement exactly at the moment when the engine starts. It is then that she returns to her seat. After all, the speed of rotation of the shaft car motor far exceeds maximum speed rotation of the electric motor, designed to play the role of a starter.

What if he doesn't come back

In fact, the bendix ensures long and trouble-free operation of the entire unit. And if not for him, then at that moment, when you turn off the starter (that is, the car starts up), it does not disengage with the engine, which is called "does not return", then the rotating shaft of the engine will simply break the starter itself. Which, by the way, sometimes happens when the bendix malfunctions reverse process- that is, the accelerating clutch does not slip, but, on the contrary, sticks and continues to rotate the shaft together with the electric motor. That is, the bendix does not disengage.

And now we are talking about a malfunction, when the bendix slips, slips, and it turns out that it works, but its clutch power with the engine is not enough to turn it over and start it.
The thing is that over time, the teeth of the ratchet-ratchet gear are erased from heavy loads, and the part fails.

It has already been said that this part - the accelerating clutch with the popular name Bendix - functions according to the principle ratchet... And the cause of the malfunction, when the gear teeth do not grab, and slip when rotating along their axis, without achieving engagement, is in the overwhelming majority of cases the banal wear of these same teeth. Indeed, in fact, at the time of work, these very teeth are under serious stress, since you have to overcome the effort to rotate a heavy crankshaft engine, compression of its cylinders and the like.

Over time, due to such loads, either:

• ratchet gear teeth;
• or (if it is not arranged with gears, but by means of two rings with balls, a locking mechanism that works exclusively in one direction and return springs) rings, balls wear out or the spring breaks.

And such a malfunction leads to the fact that when the electric motor rotates, a characteristic malfunction occurs: the lack of engagement of the starter with the engine.

Characteristic features of the malfunction

The starter is idling, the teeth slip, which should ensure unidirectional engagement of the shafts when rotating one s more speed, and also ensure their disconnection as soon as the rotation of the electric motor is stopped (this is when, as soon as the car's engine starts, the driver releases the key).

Only a radical solution to the problem. Only change. Fortunately, not all, but only Bendix.

Actually modern technologies, according to which both the starter and one of its main functional units, the bendix, are manufactured, do not imply the possibility (in case of malfunction) of the unit to be disassembled and repaired. We'll have to change. Moreover, fortunately, it is not necessary to change the entire unit entirely, but the bendix, the engagement of which has worn off so much that it already slips, does not go to required level power.

On the other hand, the strength loads of modern automotive parts are designed to have approximately the same resource. That is, even if it is possible, say, to replace the return or tension spring of the bendix and thereby eliminate the malfunction, then such a unit will still serve only a short time. Necessarily soon either balls will sprinkle, ensuring the rolling of the rings of the bendix, or the connection with the shaft will slip, having lost the gearing mechanism.

So with such characteristic malfunction, as the lack of engagement with the engine, when the torque slips without joining, there can be only one verdict - to change. Moreover, the procedure is simple, and the part itself is not particularly expensive. Cope with replacing at least domestic auto, you can independently, or by contacting the nearest car service.

If the bendix is ​​in all right, then, together with the appearance of a characteristic sound and smoke, your block will grind. Well, if the bendix stops rotating, then it is necessary to replace the bendix. It is important to note that this method is not certified and is not used at stations. Maintenance... It follows from this that you need to apply it at your own discretion.

There is another method in which you can determine technical condition bendix (also called overrunning clutch). So, try to start the engine by turning the ignition key to the "start" position. If at this moment the engine does not rotate, although the starter turns perfectly, the bendix does not work.

How to remove the bendix from the starter

1. Prepare ahead of time. This refers to wrenches, a screwdriver and a set of hexagons.
2. Disconnect power from the battery.
3. Having driven the car into the inspection pit, disconnect the wires from the starter.
4. Remove the lower starter mounting bolt.
5. Remove the top bolt.
6. Then you can remove the starter. But this is only half of the work done.
7. Unscrew the studs along the starter housing.
8. Remove the brush holder, washer and circlips.
9. Disconnect the ring from the rotor shaft with a hammer.
10. Then remove the bendix for further inspection and, if necessary, replacement.

Throughout the entire process, you need to be extremely careful. Do not damage the small parts of the starter, otherwise you will then puzzle over their search and purchase.

The starter motor is a powerful DC motor. It can burn out for many reasons, for example, due to long-term retention of the key in the "start".
If the starter does not spin or you hear clicks from it, you should not buy a new one right away, you can try to repair it. Often it is the replacement of the bendix on the starter of the VAZ 2110 that helps to solve everything.
On a vaz 2110, the starter bendix can be replaced with your own hands.

What is Bendix for?

Bendix is ​​an integral part of the starter (see), without which the engine will not start. If a metallic sound is heard at startup, then the mandatory it is required to change the bendix, and the starter must be dismantled in advance.

Note! An unstable operation of the starter is considered a sign of a malfunctioning starter.

When identifying problems, many car owners turn to the masters, although necessary measures you can do it yourself. To get started, it is recommended that you familiarize yourself with the manual of the automaker, as well as its tips for eliminating such problems.
In addition, before self-repair it is advisable to read the recommendations for safe work with a vehicle. Next, you can follow these tips to help you correctly identify and fix starter problems without assistance.
So:

• With the help of the starter, the crankshaft is unwound, while in the combustion chamber is created required pressure to ignite a combustible mixture (this is especially true diesel engines). If there is a lack of power, the engine will not start.
  For this reason, it is necessary to change the starter in time, assessing not only the correspondence of the mountings, but also sufficient power to spin up the engine.

• Attention. During the installation of the starter, it is imperative to check its serviceability, as well as the integrity of the bendix gears and the starter drive itself.
  In addition, when installing the starter in its place, you need to check the accuracy of centering.
• Caution. The starter motor must never be dropped, as it is a complex electrical appliance that is subject to damage to its internal components.
  This appliance must be handled with care and care.

Bendix replacement and starter repair

To repair a starter, the following tools are required:

• spanner keys;
• heads in a set;
• several screwdrivers;
• insulating tape;
• new bendix.

When is it time to change the bendix

During the operation of VAZ 2110 cars, sometimes drivers may notice the low efficiency of the starter, which affects the functionality of the engine, as a result, the car simply does not start the first time.

Note! Some people confuse this problem with discharged rechargeable battery... To exclude such a situation, you need to check the battery for charge, and, if necessary, charge it.
If the measures taken do not bring the desired result, the starter will have to be repaired, in many cases this concerns the overrunning clutch.

For example, if the driver hears a slight crackling sound and feels a jamming of the starter when starting the “dozen” engine, one cannot do without replacing the bendix, in other words, the overrunning clutch.

Step-by-step instructions for replacing the bendix

So:

• Wrenches, hex keys and screwdrivers are prepared. Next, you need to open the hood and detach the negative wire from the battery.
  For the convenience of work vehicle it is better to drive to a pit for inspection or to a lift. When installing the engine protection, it is imperative to remove it immediately before repair work.
• Using a wrench, unscrew the fastening of the "positive" battery wire to the solenoid relay. After these steps, you need to remove two terminals, while you need to monitor the condition of the wire insulation.
  These works must be carried out using a hexagon with which the bracket is unscrewed.

• Using a spanner wrench, it is required to unscrew the lower bolt securing the starter. Such actions tend to be a lot of hassle.
  So, with a spanner wrench, the fixing bolt is unscrewed from the bottom, after which the upper fixing bolt is unscrewed. To perform this process, you will need a ratchet with a cardan shaft and two spacers at the end.
  Now the bracket that attaches the starter to the block is freely detached. The equipment is carefully removed.
• The studs are unscrewed along the starter, which fix the cover, after which the starter is divided into two parts. The cover is taken in hand and two screws are unscrewed, the casing, retaining ring and washer are removed.
  The brushes (see) with the rotor are taken with special care. All parts are thoroughly cleaned with a brush.
• The circlip must be knocked down and attempted to be removed from the rotor shaft. Next, you need to remove the bendix and change it.
  In the process of performing work, do not forget to check the condition of the plug and bushing. To disassemble the fork, you need to carefully remove the rubber plug and remove the part to be replaced.
  She is freed from the clip and carefully examined.

• The next step involves pressing out the sleeve using a set of heads. If the bushings are too worn out, they will need to be replaced.
  They are pressed back under the influence of a hammer. As a rule, the blows should not be applied with maximum force, and it is recommended to use a wooden backing.
  All components are assembled in reverse order. Now you can safely test the functionality of the repaired starter.

At the end of the starter assembly, it is required to screw all the previously unscrewed fastening nuts from the cover and tighten the clamp well. Then the starter is installed in its original place, only the supply wires are first connected.
When all the nuts are tightened and the mechanism is in place, connect the battery terminals. Now you can check the result of the repair work performed.

It is worth noting that when buying a new bendix, you need to have an old copy with you. Very often, different couplings differ from each other in small details that are not visually remembered.
V worst case you can purchase the wrong mechanism.

Note!
A cracked or worn plastic washer mounted on the starter cover can be replaced. If there is damage to the insulation on the mechanism pin, it can be repaired with electrical tape.

Today, any car repair can be performed at a service station, but in some cases, you can do without this service. As a rule, this concerns minor repairs or replacement of components in mechanisms.
Thus, with the help of video and photos, you can replace the bendix on the starter with your own hands. With repeated disassembly, the instruction is not needed, since everything can be done from memory.
Self-repair is considered profitable business, since the price of car service is far from democratic.