What to do if the starter clicks or does not turn in the VAZ-2107? Repair and replacement of the starter on the VAZ-2107

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42

VAZ-2107, or the classic "Lada", "seven" - the car is quite old, but reliable. More than one generation of drivers "grew up" behind the wheel of this car. Like any type of transport, VAZ tends to break down from time to time. Quite often, breakdowns concern the ignition system, in particular, such a part as a starter.

Starter: device and principle of its operation

In all cars, including the VAZ-2107, the starter performs one of the main functions - it 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 is needed - an electric motor in which alternating current is constantly located.

When the ignition switch closes, current flows through the coil. 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 at the moment the gear is engaged withflywheel. The current through closed contacts enters 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 state of rest.

Structurally, the starter consists of the following elements: an electric motor, a retractor relay and an overrunning clutch with a gear (bendix). Each component performs a specific function, and if something fails, the whole system does not work.

Starter VAZ-2107 does not turn: causes of malfunctions

When the starter is broken, the engine can no longer start, so the car will not move. Before “sinning” this device, you need to make sure that the battery is charged and in working order. Often a simple battery discharge is confused with various breakdowns. If the battery is charged, the cause of the starter malfunction should be sought elsewhere. Namely:

• Loose wiring connection on solenoid relay or vehicle ground.
• The starter has a bad mount.
• The contacts of the retractor relay have oxidized.
• Worn starter parts (bearings, anchor, bushings).
• The contact plates inside the relay burned out.
• The anchor winding has closed.
• The wire that connects the auxiliary relay to the starter retractor has broken.
• The winding of the solenoid relay has broken.

How to recognize a starter failure?

Not always reasonsbreakdowns can be where they are looking for. If the car does not start, do not immediately blame the starter. Perhaps the reason is different. To make sure that the mentioned device is still to blame, you should pay attention to such points in the operation of the VAZ-2107:

• Starter spins but car won't start (problems with retractor relay).
• When the key is turned in the ignition, the starter is "silent".
• The device starts up after several failed attempts.
• Engine started but starter continues to run.
• Strange sounds come from the car while driving (noise, knocking, grinding).

When at least one of these signs is observed, the starter should be removed and examined in more detail for damage. The device may need to be repaired or even replaced.

Repair starter VAZ-2107

Its service life is 5-6 years. If the part has been serving for a long time, there is no point in repairing it. It's easier and safer to buy a new one. On average, it will cost 2500-3000 rubles. However, it also happens that there is not always 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 fix the spare part.

In order to find out exactly where the breakdown occurred, the unit must be dismantled and visually inspected, in particular, inspect the traction relay, starter winding and armature.

The VAZ 2107 starter relay is checked with a battery. It is necessary to connect the output "50" with positivebattery terminal, and the starter housing itself - with a negative one. If the relay is working properly, you will hear a click and the gear will pop out through the front cover. If no change occurs, the relay is faulty and should be replaced. The cost of a new spare part is 600–700 rubles.

You can check the winding of the armature and starter with a multimeter. To do this, one probe of the device is connected to the body, and the second - to the winding output or to the armature contact plates. The resistance of the winding, on which there is no short circuit, must be 10 or more units. A low resistance indicates a short circuit. It is impossible to cope with such a breakdown on your own. All that remains is to buy a new starter.

To check the overrunning clutch, you need to turn the gear. In one direction, it should scroll freely, and in the other - together with the anchor. Any deviations indicate a malfunction of this part.

Before installing the starter in its place, you should also check for wear on its brushes. Working height should be 12mm.

Each component part of the device in question must be cleaned of dirt and oxidation with sandpaper before assembly.

Change the starter with your own hands

On VAZ-2107 cars, the starter is one of those parts that every driver can replace on their own. To remove the old spare part and install a new one, follow this procedure:

• Disconnect the battery (negative terminal).
• Using Key 10unscrew the bottom bolt that holds the starter.
• The next three bolts are unscrewed with a 13 key so that the unit can be moved.
• Remove the air filter housing.
• Remove the shield, disconnect the wire from the positive terminal of the starter. The same must be done with the traction relay.
• Remove the starter.
• Installation of the new device is done in reverse order.

As you can see, replacing the starter (VAZ-2107 or any other model - it doesn't matter) is a fairly simple task.

Conclusion

Each driver should be able to diagnose his vehicle and troubleshoot in time. In VAZ-2107 cars, the starter is the part that, although infrequently, still breaks down. It is not difficult to repair or replace the device even for a novice driver. Plus, it's a good money saver. Indeed, for a simple replacement at a car service, they can “rip off” at exorbitant prices!