Replacing a VAZ 2114 starter – where is it located, symptoms of a malfunction, how to choose a new one

A starter is a necessary element of a car, designed to start the engine from the ignition key. The rotation of the starter is transmitted to the crankshaft through the flywheel.

The starter is a direct current electric motor, which includes: a stator (a stationary part consisting of windings); armature (shaft in the grooves of which the collector and winding are located); overrunning clutch (gear with a mechanical device) and retractor relay.

What causes the starter to fail?

Understanding the reasons for the failure of a part, we can say that there are not so many of them:

• Manufacturing defects. Due to the design features of the body, the manufacturer had to reduce the size of the mechanism, so it has insufficient power and often fails;
• Operation of the device with unacceptable overloads. If you have to turn the engine for a long time, the element can overheat;
• Violation of operating rules. For example, a car enthusiast has run out of gas, and in order to move the car to the side of the road, he puts the car in gear and turns the starter, which allows him to move the car. The mechanism is not designed for such a load;
• Natural wear and tear of parts.

The mechanism is a defect of the manufacturer and is considered a “sore” of the VAZ 2114 car, as it often fails.

Catalog number and cost of analogues

Finding a branded VAZ 2114 starter is not always easy. At the same time, the quality of the original components is very poor, which is further complemented by a high level of defects among the products sold. Therefore, experienced car owners recommend purchasing analogues from third-party manufacturers. The best alternative options for the original VAZ 2114 starter are presented in the table below.

Table - Good analogues of the original VAZ 2114 starter

Symptoms of a VAZ 2114 starter malfunction

Understanding the symptoms of a malfunction, we can highlight several points:

• When turning the ignition key, the mechanism does not move;
• Having started the engine, the bendix does not disengage from the flywheel;
• When you turn the ignition key, only electrical clicks are heard;
• The starter smokes when trying to start the engine;
• The mechanism hums, but does not engage the flywheel.

Useful : Where is the fuse and starter relay on the VAZ 2114?

All the reasons are similar in one thing: the engine does not start rotating during a startup attempt. To determine exactly what the problem is, you will need to remove the mechanism and carry out diagnostics. There are several main reasons for failure:

• It doesn’t turn at all: when the winding is shorted, or the armature shaft on the solenoid relay is stuck;
• Insufficient speed: the armature or stator winding has broken or shorted, or the brushes have worn out;
• Does not transmit speed to the crankshaft: the bendix is ​​faulty;
• Does not turn off even after starting: the spring on the clutch is broken or the traction relay is stuck.

DESIGN FEATURES AND OPERATING PRINCIPLE

The starter on the VAZ 2114 (5712.3708) has an operation cycle, which can be divided into four main stages:

1. After turning the ignition key, the fourteenth battery in the contact chain begins to supply power to the starter and traction relay;
2. The Bendix gear drive (overrunning clutch) is connected to the flywheel;
3. At the moment the gear drive is connected, power begins to be supplied to the electric motor of the unit;
4. The electric motor begins to spin the drive, the revolutions of which are transmitted to the crankshaft of the car, as a result of which the engine starts. When the engine speed begins to exceed the starter speed, the drive and the crankshaft are disconnected.

Now let's look at the design features of the fourteenth starter. In the diagram below you can see the main elements of the device.

Starter device

• Housing - made in the form of a cast steel cylinder at the ends, closed with lids, inside which the cores and the exciting winding (stator) are located;
• Solenoid relay - consists of a movable jumper and power contacts. The purpose of the solenoid relay is to close the contacts when the ignition is turned on, as a result of which power begins to be supplied to the electric motor. Upon completion of the operating cycle, the solenoid relay disconnects the power and the device turns off;
• Bendix of the VAZ 2114 starter (aka overrunning clutch) - at the beginning of the operation of the device, the bendix is ​​connected to the crankshaft and transmits the electric drive speed to it through the engagement gear; at the end of the cycle it is disconnected. The serviceability of the entire device depends on the normal functioning of the bendix, since if disconnection does not occur at the moment when the engine speed exceeds the speed of the electric drive, the unit will be damaged;
• Anchor - is a cast axle made of alloy steel, onto which collector plates and a core are pressed;
• Brushes and brush holders are structural elements that are necessary to supply power to the armature. Properly functioning brushes increase the power of the device's electric drive;
• The starter bushing - there are three in total: the rear and front - are pressed into the body, the third is located at the junction of the armature and the bendix. The bushings are responsible for fixing the drive shaft.

The cost of a new device varies between 3.5-5 thousand rubles, depending on the manufacturer. Owners of fourteen speak positively about devices manufactured by Eldix, KATEK and PRAMO. If you buy Bendix separately, it will cost you 300-500 rubles.

Which starter should you choose?

When choosing a new spare part, most car owners give preference to the geared version. Its advantages are that it is smaller in size, turns the engine faster even with a dead battery, and works better in winter.

Of the gearbox options, everyone prefers the following companies:

• KZATE – 3600 rubles
• Eldix – 4500 rubles
• PRAMO – 4400 rubles

Try not to save money when buying a new part. As mentioned earlier, the item from the factory is considered the weak link of the car. If you buy a cheap Chinese analogue, you can return to removing the starter on a VAZ 2114 at the most inopportune moment. Read the reviews in stores in your region, this will help you identify quality brands and not fall for a fake, which will also save time and money.

Useful : VAZ 2114 starter connection diagram

Reasons for removing the starter

It is worth noting the main malfunctions of the starter, which will require its removal.

The main problems with the starter that will require its removal are:

1. When you try to turn on the starter, the traction relay does not work, and accordingly the armature does not rotate.
2. When you try to turn on the starter, the traction relay is activated, but the starter does not turn or turns only slowly.
3. When you try to turn on the starter, the traction relay is activated and switched off several times.
4. When the starter is turned on, the armature rotates, but the engine flywheel does not.
5. When the armature rotates, the starter makes extraneous noise.

It is also worth noting, and will save your energy and nerves, that before removing the starter, make sure that the problem does not lie in a dead battery, oxidized terminals, broken electrical circuit, oxidized contacts, etc. To do this, familiarize yourself with the problems that affect the operation of the starter:

Replacing the starter on a VAZ 2114

Before removing the starter, you need to clear the engine compartment by removing the air filter housing. This will give us more access to the element's location. How to remove the starter on a VAZ 2114 without a pit? Access to the bolts is also open through the engine compartment; the only thing you have to do is tinker a little with the bottom bolt. Afterwards you can start repairing:

1. Remove the positive terminal from the battery. This must be done so as not to short-circuit the wiring and remove the voltage from it.
2. Then disconnect the plug of the red wire that pulls in the relay.

3. We take the key for 13 and disconnect the second wire from the body.
4. Now you can start removing the part itself. We unscrew the three 13mm bolts that secure the part to the box.

The starter no longer holds anything and you can remove it from its seat and pull it out.

When installing a new part, try to tighten the bolts firmly, but do not overdo it so as not to bend the threads or studs.

How to properly remove the starter?

1. We put the car in the pit and remove the engine protection by unscrewing the four fasteners.
2. Open the hood and remove the negative terminal from the battery.
3. Disconnect the wire block from the starter.
4. Remove the crankcase protection as shown in the figure.
5. Unscrew the fastening nut and remove the wire from the contact bolt of the starter traction relay.
6. We climb under the car and unscrew the 2 starter fasteners from below as shown in the figure.
7. We go up to the top and unscrew the last, third fastening of the starter.
8. Then we climb back into the hole and remove the starter.

Replacing the solenoid relay

It is not always necessary to replace the starter; sometimes simply servicing it is enough.

You can replace the solenoid relay without removing it, but then you will have to work a little, as this is quite inconvenient.

You can learn how to replace the relay correctly from the video:

Following the instructions from the article, replacing the starter on a VAZ 2114 with an 8-valve engine will not be so difficult. The starter is one of the most complex mechanisms in a car because it consists of many parts that wear out and fail over time. Although the system is only concerned with starting the car, there are many processes going on inside the case that must work in time and pass enough current to start the engine. It is impossible to monitor the condition of the internal parts, the only thing is that if you notice that the starter turns weakly and sometimes does not work, it is better to immediately remove it and take it for repairs or fix it yourself. This will save money on the subsequent purchase of a completely new element.

Required Tools

In order to carry out repairs yourself and replace a faulty starter, you need the tools that are listed in the table below. Table - Tools required to replace the front strut

Main malfunctions and their symptoms

The most common breakdowns that occur in the starter are as follows:

• The electric motor of the device does not rotate. A short circuit has occurred on the stator windings, the rotor has become soured in the support bushings, or the contacts have oxidized;
• The electric motor spins, but at insufficient speed and low power. Either the graphite brushes are worn out or a short circuit has occurred on one of the windings;
• The starter works as it should, but rotation is not transmitted to the crankshaft. Bendix wear or breakdown;
• The starter starts the engine, but does not turn itself off. The retractor relay mechanism has oxidized or the return spring has burst.

Disassembled starter
If you notice one of the above signs on the starter, you should dismantle it and carry out detailed diagnostics in the removed state.

Checking work

Sometimes, despite more than obvious signs of breakage or wear of the retractor, in reality everything turns out to be wrong. The car may behave similarly with some other malfunctions.

Therefore, in order to figure out whether the relay works or not, and also who is the real culprit for the violation of the functionality of the system, we will conduct several checks.

1. Check the starter. Turn the ignition key. The starter should begin to turn, and the relay should make a characteristic click. If the starter is not doing its job, replace it. Relyukha has nothing to do with it in this case.
2. Check the solenoid relay. To do this, there are two copper bolts on the back cover. Two contacts are attached to them. If the starter starts turning, then your relay has definitely failed and needs to be replaced. In this case, you should not remove the starter, which will allow you to get more accurate test results.
3. If you have removed the starter, the check is performed slightly differently : Connect the contact wire of the retractor relay to the positive terminal of the battery;
4. The second contact connects the starter ground and the battery charger;
5. When the contacts are placed on the relay terminals, the relay should turn on with a characteristic click;
6. If the operation is too slow, uncharacteristic, check the condition of the contacts. They often burn out or oxidize.

Malfunctions

During the operation of the vehicle, the following malfunctions of the starter are possible, which may lead to its replacement:

• overrunning clutch is faulty;
• short circuit of the stator or armature windings;
• significant wear of the brushes.

These malfunctions are characterized by the following symptoms:

• the starter armature rotates slowly;
• Uncharacteristic noises are heard when starting the engine.

If you ignore the slow rotation of the armature, of course, you won’t run into expensive repairs in the future, but you can run into trouble like this. But in case of noise, there is no need to postpone repairs.

It is quite possible, for example, that a malfunction may occur such as breaking out the teeth of the gear of the overrunning clutch mechanism, and here you can already run into an expensive replacement of the flywheel. However, before buying a new starter, you need to make sure that it is not possible to repair it!

Price

Prices for starters for VAZ 2114 in online stores are in the range of 2784...4520 rubles, and the cost of replacing it averages 500 rubles.

Differences between starter and relay failure

In order not to confuse what exactly has failed - the starter or the solenoid relay, there is an excellent method for recognizing the “culprit”.

• Remove the starter, connect the negative terminal of the battery to ground;
• The design of the device has copper bolts and a tongue-shaped element;
• The positive wire from the battery is connected to this “tongue”;
• If there is contact, the solenoid relay clicks and starts working;
• If not, then you will have to go to the store for a new relay.

But there is one more very important point. Even if all the facts indicate that the starter or retractor relay is not working, another unit - the ignition switch - may still be the cause of ignition problems. Take the time to check its serviceability before buying new parts.

Useful video

You can get additional useful information on this issue from the video below:

Published August 03, 2019

On VAZ 2114/2115 cars, starters 29.3708 or 5712.3708 can be installed. Both starters are an electromechanical DC motor with mixed excitation and an electromagnetic two-winding traction relay. The main purpose, which is to create primary torque and transmit it through the flywheel to the crankshaft with the required speed.

The installation dimensions of the starters are the same - the differences are in the design of the commutator unit and the drive. The starter 29.3708 has a face-type commutator, the starter 5712.3708 has a cylindrical one, and the starter 5712.3708 also has a planetary gearbox in the drive.

When the starter stops working or works intermittently, starting the engine is very problematic and sometimes impossible.