VAZ-2107, or the classic Lada, the Seven,The car is rather old, but reliable. More than one generation of drivers "grew up" behind the wheel of this car. Like any type of transport, VAZ has the property from time to time to break down. Quite often the breakdowns concern the ignition system, in particular, such a detail as a starter.
Starter: the device and the principle of its operation
In all cars, including the VAZ-2107,the starter performs one of the main functions - starts the engine. To start the engine, you need to turn the crankshaft and, thus, create a flash of the fuel mixture in one of the cylinders. For this, a starter motor is necessary, in which an alternating current is constantly located.
When the ignition switch contacts are closed, theThe current flows through the winding. The core of the electromagnet is retracted, and the lever connected to it moves the bendix gear. At the same time, the core creates pressure on the plate, which closes the contacts when the gear is engaged with the flywheel. The current flows through the closed contacts to the motor winding and creates a magnetic field that rotates the crankshaft. When the engine is already running, the starter must be turned off. The key in the ignition switch is turned back, the magnetic field disappears, and the device goes into a standstill.
Structurally, the starter consists of the following elements:electric motor, retractor relay and overrunning clutch with gear (bendix). Each component performs a certain function, and if something goes wrong, the whole system does not work.
Starter VAZ-2107 does not twist: causes of malfunctions
When the starter is broken, the engine can no longerstart, respectively, the machine does not move. Before you "sin" on this device, you need to make sure that the battery is charged and is in working order. Often a simple discharge of a battery is confused with different breakages. If the battery is charged, the cause of the failure of the starter should be looked for in another. Namely:
- The wiring is loose at the retractor relay or on the vehicle weight.
- The starter has a poor fit.
- The contacts of the retractor were oxidized.
- Starter parts worn out (bearings, anchor, bushings).
- The contact plates burned inside the relay.
- The winding was closed at anchor.
- The wire which connects the additional relay with the retracting relay of a starter was cut off.
- The winding of the retracting relay was cut off.
How to recognize a starter fault?
Not always the reasons for breakdowns can be where they areare looking. If the car does not start, do not immediately blame the starter. Perhaps the reason is different. To make sure that the device is still to blame, you should pay attention to such moments in the work of VAZ-2107:
- The starter turns, and the car does not start (problems with the retracting relay).
- When the key is turned in the ignition lock, the starter "is silent."
- The device starts after several unsuccessful attempts.
- The engine is started, and the starter continues to work.
- The car emits strange sounds while driving (noise, knocking, screeching).
When there is at least one of these signs, remove the starter and examine it in more detail for damage. Perhaps the device will have to be repaired, or maybe even replaced.
Repair of starter VAZ-2107
The term of his service is 5-6 years.If the part has been around for a long time, there's no point in repairing it. It is simpler and more reliable to purchase a new one. On average this will cost 2500-3000 rubles. However, it also happens that there is not always enough money to buy a new device, or the starter is not old enough and can still serve its owner. Then, of course, you can try to repair the spare part.
In order to find out exactly where the failure occurred, the unit must be dismantled and a visual inspection performed, in particular, to inspect the traction relay, the winding of the starter and the armature.
The starter relay VAZ 2107 is checked with the help ofbattery. It is necessary to connect the output "50" to the positive terminal of the battery, and the case of the starter - with the negative. If the relay is working properly, you will hear a click, and the gear moves out through the front cover. If no changes occur, the relay is defective, and it should be replaced. The cost of the new spare parts is 600-700 rubles.
Check the armature and starter windingby means of a multimeter. To do this, one probe of the device is connected to the housing, and the second - to the winding terminal or to the contact plates of the armature. The resistance of the winding, on which there is no closure, must be 10 or more units. Low resistance indicates a short circuit. It is impossible to cope with such a breakdown. All that remains is to buy a new starter.
To check the overrunning clutch, you need to twist the gear. In one direction, it must be freely scrolled, and in the other - with the anchor. Any deviation indicates a malfunction of this part.
Before installing the starter in its place, you should also check for wear on its brush. The working height must be 12 mm.
Each component of the device in question must be cleaned from contamination and oxidation with sandpaper before assembly.
Change the starter yourself
On cars VAZ-2107 the starter is one of thoseparts, which every driver can replace himself. To remove an old spare part and install a new one, you should follow this procedure:
- Disconnect the battery (negative terminal).
- Using the key number 10, unscrew the lower bolt, which holds the starter.
- The following three bolts twist off the key by 13, so that the unit can be moved.
- Remove the air filter housing.
- Remove the guard, disconnect the wire from the positive terminal of the starter. The same must be done with the traction relay.
- Take off the starter.
- Install the new device in the reverse order.
As you can see, replacing the starter (VAZ-2107 or any other model - is not important) - the task is quite simple.
Conclusion
Every driver should be able to produceDiagnosis of your vehicle and timely troubleshooting. In cars VAZ-2107 the starter is that detail, which, though infrequently, but still breaks. Repair or replace the device will not be difficult even for the novice driver. In addition, this is a good money saving. After all, for a simple replacement at the car service can "tear off" at a price!
