Starter "Niva Chevrolet": possible malfunctions and their elimination

Probably, there is not a single car that does not have a starter installed. "Niva Chevrolet" is not an exception. Sometimes a starter goes out of order, but since it is simple, it can not be repaired with your own hands. You just need to know the typical problems of this unit and be able to eliminate them. It is arranged quite simply, and it is easy to understand.

Even if the cars "Chevrolet Niva" are new, from the failure of the starter no one is immune. Often there may be a production marriage. Therefore, you need to be able to diagnose these nodes. It is also important to know the devices of the node and the principle of its operation. We hope, after this article even beginners will be able to service the starter on their own.

How is the starter arranged?

"Niva Chevrolet" is equipped with an element with an electric motor of direct current. It is powered by electromagnets. The latter are additionally equipped with a planetary-type reducer and a traction relay.

The rated power is 1.55 kW. Consumed current in the modes of maximum power is not more than 375 A. At the moment of braking, the current can reach a level of 700 A. At idle, no more than 80 A.

The starter consists of 28 parts. In the structure of the motor there are magnets operating on direct current. All parts are in the body, and the anchor with the lid is tied with studs. The armature shaft is fixed to the support, and also to the cover. When the element rotates, the torque is transmitted to the drive shaft. Helps the starter in this planetary gearbox.

The latter also includes a "carrier" and gears with internal gearing. They rotate with needle bearings. What else is included in the starter? "Niva Chevrolet", except for the listed, is completed with a brush mechanism.

Operating principle

When the driver turns the key in the ignition switch, the contacts close, passing through the starter relay. "Niva Chevrolet" and its engine are while off. Power is supplied to the holding and traction winding. The magnetic field in them with a certain force pulls the anchor in the body, thereby compressing the return spring.

After that, the anchor pushes the rod and the contact plate. It closes the contacts on the retractor relay. The electric starter motor starts to spin. Along with this, the anchor fork puts forward the bendix of the starter ("Niva Chevrolet 1600 "is also equipped with them.) The bendix has a gear, which engages with the flywheel on the engine of the car.

When the flywheel rotates faster than the starter and the gear of the bendix, a freewheel clutch comes into play. It does not give the torque to indulge in the bandix and then levers back with the help of the lever. And due to the return spring, the part goes to its original position when the engine starts.

Starter and breakage

What has a starter breakage? "Niva Chevrolet", as, indeed, any other car, are operated quite intensively. This leads to the failure of the node. To begin repair, it is first necessary to identify the cause of the breakdown. Only in this way can you return this important node to its efficiency. If you carry out repairs yourself, then you can do with minimal costs. For example, if the starter does not turn the Niva Chevrolet car, the cause often disappears not in the failure of the node, but in the discharged battery.

To start the car engine again properly, it's enough to charge the battery. But AKB can be and serviceable. Then experts recommend checking the wires - their terminals and contacts could oxidize.

Problems with starting a starter

Some problems in the operation of the starter can be diagnosed by how the car engine is started. For example, if after several attempts the traction relay of the starter does not turn on, the "Niva Chevrolet" may not start. This is theoretically related to the termination of the relay turns. But in practice this happens very rarely. This problem is solved by replacing the wires, cleaning the contacts, replacing or recharging the battery.

The starter turns too slowly

You need to make sure that the battery is sufficiently charged. Next, check the condition of the wires and terminals. Too malfunction can result in too early ignition. It can cause so-called backflashes, which work against the side of rotation of the crankshaft. Power will be transmitted to the starter when it is in meshing with the flywheel. This significantly reduces the effectiveness.

Often, such symptoms indicate problems in the electrical part of the device. Diagnosis can be done only after dismantling and disassembly. But immediately we note that the problems will be associated with a burnt collector or with a closure in its plates. Most often, the brushes in the electric motor are simply worn out or pendulous.

The starter fails to crank the crankshaft

Such problems also happen. The starter is designed to operate at certain speeds. If the wires are damaged due to corrosion, if they are susceptible to contamination, this can cause slow rotation or even complete failure of the unit.

The second reason is the gear, which for some reason can not get into gear with the crankshaft flywheel. A clutch can also slip. Sometimes the reason for this behavior is in the locked engine.

The starter rotates, but the crankshaft does not rotate

If the starter turns, but the engine does not work, then experts recommend checking the condition of the teeth on the flywheel and the gear of the bendix. When the car is used intensively, critical wear of these teeth is possible. Check their condition through a special mounting hole. You can replace them by purchasing a recompilation kit for the starter "Niva Chevrolet". The price of it is about 500 rubles.

The idle drive unit also exhibits the same symptoms. If the gear of the starter fits well with the engine flywheel, but does not rotate, check the starter for wear and other mechanical damage. The node may not be installed correctly.

As for the repair kits of starters for Chevrolet Niva cars, they may fluctuate greatly in their equipment and prices. But most often manufacturers take into account all the details that are subject to wear and are subject to replacement.

Diagnostics

So, first of all the device is connected to the battery and to the multimeter. It is possible to connect through the contact bolt on the traction relay. It is recommended to use for this purpose wires, the cross section of which is not less than 1.6 square meters. See Also be sure that the brushes are well attached to the collector, and the temperature of the unit is normal.

A chain of starter, battery and multimeter will help you diagnose the device. Close the switch by applying 12 V to the terminal. This procedure is carried out thrice, constantly changing the conditions of inhibition. The chain is switched on for short time intervals.

If the node does not rotate and there is an outside noise in its operation, it is easy to conclude that the device is defective.

Just feel the starter in full braking. This method of diagnostics makes it possible to find out the causes of the failure and will help to successfully repair the unit. For this procedure, you must turn on the starter and at the same time check the ammeter readings. Perform voltage measurements with a multimeter, and also measure the braking torque. The current should be no higher than 700 A. Voltage - no more than 5 V, and the braking torque - less than 13.72 Nm.

If the indicators are different, the starter is defective. If the current is higher and the torque is lower, then the cause of the fault is due to the closure inside the armature winding. It is worth checking the coils. It is also possible to short-circuit the weight of the armature winding.

Dismantling by own hands

These diagnostic methods can only be carried out if the device is dismantled. And to do this, you need to know how to remove the starter. On "Chevrolet Niva" it is made as follows:

• Before dismantling, disconnect the wire from the negative battery. Judging by the advice of the owners, it is best to dismantle the starter through the bottom of the car. This requires a flyover or a pit. After the battery is disconnected, the motor protection is removed.
• The starter itself is fixed on three bolts. To unmount the device, you just need to unscrew it. The lower bolt is twisted from below - it's more convenient. The other two bolts should be turned away from above. The most problematic is the upper bolt.
• After loosening the nuts, the thermal protection is removed. On the side of the check point, the tin is folded, and the bolt that holds the tin can be unscrewed from below. Then the starter can be pulled out gently. And pull better along with the wires. There are only two of them here.

First of all, the unit is cleaned, the contacts and fixings are freed from dirt, the mechanism is lubricated. If necessary, replace the failed parts. You can install and a new starter "Niva Chevrolet". The price for new nodes, depending on the manufacturer, is from 4,000 rubles.

Conclusion

"Chevrolet Niva" - this is a domestic off-road vehicle. It is bought by those who categorically do not like the quality of domestic roads. These are inexpensive and relatively affordable cars. So, for those who decided to buy a Chevrolet Niva SUV, the sets and prices start from the base - L, where there are stamped wheels and a central lock, for 545 thousand rubles. The maximum version - LE, with air conditioning and electrical package, costs 629 thousand rubles.