The generator is the main component of the electrical system, since it is this node that feeds all the equipment and consumers. Problems in the functioning of the generator can deliver serious inconvenience to the motorist. About this further in the article.

Generator 2107, device and principle

The generator includes:

• Rotor.
• Stator.
• Two bearings.
• Built-in rectifier.
• Three-level voltage regulator.
• Two aluminum alloy covers.

The unit is on the right of the power unit, and is attached to the engine bracket with two bolts. The generator converts mechanical energy that appears during the rotation of the crankshaft, electrical. The resulting electrical energy is needed to recharging the battery and power of the on-board network. AC transformation into a permanent force of 80 amps is due to the rectifier block, which consists of six diodes.

Voltage supports three-level regulator. When the driver includes ignition, the voltage passes through the control light bulb and reaches a three-level regulator, after which it comes to the excitation winding. This process is shown in the following scheme.

The main elements of the onboard network are marked with the following figures: Battery (1), generator (2), mounting unit (3), ignition lock (4), voltmeter, measuring voltage (5), Light bulb controlling battery (6).

Signs of Malfunction Generator VAZ 2107

The main signs of the malfunction of the generator:

• Continuous flickering or a bull view of the battery discharge of the battery with the engine running.
• Battery reload or full discharge.
• Weakly audible beep or dim lightweight glow with an engine running.
• Outsided sounds (howl or squeak) emanating from the generator.
• Significant change in the brightness of the lanterns with increasing the number of revolutions. This option is considered to be permissible if there is an increase in revolutions (that is, Peregazovka) from the XX mode, but it should not rise more after bright headlights, remaining at the same level.

The main causes of the VAZ generator

• The stress generator brushes (tablets) were worn. This problem is one of the most common and most common in domestic seven. These devices are consumables, so one way or another will wear out.
• Overheat the winding inside the device. In this case, the repair is to replace components that have failed, but it is not always possible to rewind the windings.
• The unit of the unit was damaged, in particular, we are talking about mechanical damage. As a result, moisture will fall into the device, which destroys the elements installed inside.
• Bearing elements were worn. If the bearings were worn out, the operation of the device will be accompanied by an increased creak or noise. Sometimes the problem can be solved by adding lubricant to bearing devices, but this helps not always.
• Broken diode bridge.
• He was damaged or pulled out. It will not be possible to restore the performance of pulley by dismantling and repairing, the device is replaced.
• Open drive belt. Under the influence of time, the strap is wears, because of which its intensive use can lead to a cliff.

Tools, fixtures, consumables

1. The key to "10".
2. The key to "17".
3. The key to "8".
4. Mandrels for knocking out and pressing bearings.
5. Bearing puller.
6. End key.
7. Screwdriver.
8. Head on "10" with a ratchet. "

Choosing a workplace

The generator replacement is more convenient to perform the bottom of the vehicle. To do this, you will need to unscrew the boot that protects the car. You will need an observation pit or lift.

Dismantling of the generator (step by step)

1. To begin with, disconnect the minus terminal from the battery.
2. Next, disconnect the connector from the generator (the thermostat and battery are pre-dismantled in the photo).

   

3. Remove the insulation case from the terminal. Using the key to "10", unscrew the terminal and disconnect the wire.

   

4. Loosen the generator fastenings and remove the belt.
5. Using the key to "17", push the adjustment bar.
6. Unscrew the bottom mount nut and remove the bolt with the sleeve.
7. Remove the unit.
   

Disassembling the generator and repair of the generator (in detail)

1. Using the end key, unscrew the nut, which secures the impeller and pulley, holding the rotor with a screwdriver.

   

2. Steps from the shaft pulley, and then the impeller of the fan. Remove the key and pull out remote washers.
   
3. Dispatch the voltage controller relay, after unscrewing the fastening screws. Disconnect the wire block.

   

4. Pull the voltage regulator from the housing with the brushes node.

   

5. Using the head to "10" with a ratchet, unscrew the nuts that fasten the generator cover, remove the bolts.
   
6. Then we sweep the lid about the wooden bar and, by hitting the rubber hammer on the shaft, run the front cover.

   

7. Remove the lid and remove the remote sleeve.
8. Check the front ball bearing, for which you hold firmly cover, turn your fingers and shake the bearing itself (that is, the inner ring of the ball bearing).
9. When the excess backlash is detected or if the bearing is broken, replace it with a new one.
10. To replace the defective ball bearings, unscrew its fastening nuts using the key to "8".
    
11. Remove the fastening washers and bolts that fasten the bearing.
    
12. Select a suitable mandrel (i.e., get out) and select the bearing (see photo).
    
13. Take two wooden lumps, pour the edges of the back cover in them and with the help of a soft metal, bulk the rotor. If damage the surface of the covers, it is necessary to process them with an abrasive circle.
    
14. Check the wellness of the rear ball bearing method described in 8 points.
15. If you need a replacement, make it up from the rotor using the puller.

    

16. Using the head on "8" with a ratchet and extension, unscrew the fastening nuts of the diodes block, as well as the conclusions from the stator winding.

    

17. Remove the bolts and pull the stator out of the cover.
18. Check the integrity of the stator winding. If the winding is damaged, replace it or rewind.
    
19. Remove the generator output nut with a washer made of insulating substance.
20. Remove the diode bridge itself.
    
21. Cross screwdriver unscrew the screw that creates the capacitor, and remove it. Remove the third bolt from the cover, which crept the rectifier block.
    
22. Check the stator with the rotor using the control lamp.

How to assemble the generator and install in place (step by step)

1. Before starting the assembly, clean all the elements from dirt and dust, and then blow them with air with the compressor. Metal parts are desirable to rinse with gasoline.
2. We press the rotor to press the new bearing using a mandrel, the diameter of which corresponds to the diameter of the inner ring of the bearing.
   
3. Inspect the bearing seats. They should not be damage.
4. Cracked covers replace new. The assembly is performed in the reverse order.