DIY viburnum starter repair

In detail: DIY repair of a viburnum starter from a real master for the site my.housecope.com.

Depending on the malfunction that has occurred, the sequence and scope of repair work can be changed.

The most common starter malfunctions:

1. The winding burns out or the contact bolts and the contact plate in the traction relay burn out. To eliminate these faults, it is necessary to replace the traction relay. This can be done on the vehicle without removing the starter.

2. Defective overrunning drive clutch. To eliminate this malfunction, it is necessary to disassemble the starter and replace the drive.

3. Worn out; starter brushes. Remove the starter, replace the brush assembly and clean the manifold. When replacing the brush assembly, there is no need to remove the starter drive and the traction relay.

To complete the work you will need:

- two power wires (with clamps at the ends) for starting the engine from the storage battery of another car;

- puller for external retaining rings;

You can check the electrical part of the starter without disassembling it.

1. We remove the starter.

When checking, do not short-circuit the battery positive lead clamp to the starter housing. To do this, lengthen the clamp, for example by inserting a steel drift into it.

2. We connect the negative terminal of the battery to the starter housing with one wire. The second wire, connected to the positive terminal of the battery, is connected to the terminal bolt 2 of the traction relay, to which the starter wire is connected. If the starter armature starts to rotate, the starter motor is working properly.

3. We connect the second wire to the contact bolt 1 of the traction relay. Using a screwdriver or other suitable metal object, we short-circuit terminal 3 and the contact bolt of the traction relay. If there was a loud click and the starter armature began to rotate, it means that the traction relay is working properly.

Video (click to play).

To further check the starter, as well as to determine the cause of the malfunction, it is necessary to disassemble the starter.

1. Using a 10 mm socket wrench, unscrew the nut securing the wire tip to the terminal (contact bolt) of the traction relay.

2. Remove the wire tip from the traction relay contact bolt.

3. With an 8 mm socket wrench, unscrew the two bolts of the traction relay.

4. We remove the traction relay from the starter (in this case, it is necessary to disconnect the shackle of the relay core from the upper end of the drive lever).

Check the ease of movement of the traction relay core. Connect an ohmmeter to the traction relay terminals and, pushing the armature all the way down, make sure that the contact bolts are closed (electrical resistance is close to zero). A defective traction relay must be replaced.

5. Using a 10 mm socket wrench, unscrew the two nuts of the tie rods.

6. After carefully disconnecting the stator from the front cover, remove the stator from the awls.

7. Remove the central gear of the planetary reducer (sometimes the gear remains on the armature shaft).

8. Prying on with a slotted screwdriver, remove the three planetary gears of the reducer one by one.

Check the condition of the planetary gear. The pinion gear needle bearings must not be damaged. The gear teeth of the gearbox should not have chips, scuffs, traces of corrosion and other damage. It is necessary to replace the defective gearbox elements (either the drive or the starter assembly).

9. Resting on the top of the starter front cover with a screwdriver, pry the drive arm support.

10. We remove the drive from the cover together with the drive shaft, drive lever, lever support and external gear of the gearbox.

Check the condition of the drive. The drive must move freely, without jamming, along the splines of the shaft.The drive gear should turn freely in one direction only; chipping of teeth and strong nicks on the lead-in part of the teeth are unacceptable. Small defects can be removed with a diamond file or an abrasive bar. It is necessary to replace the faulty and badly worn drive (or starter assembly).

11... With a hammer, through a 13 mm open-end wrench, knock down the ring of the stop of the starter drive (in this case, a wooden block or a piece of dense rubber should be placed under the gear wheel of the red> ’ktor).

12. Using a slotted screwdriver, remove the drive travel stop ring from the shaft groove and remove the stop ring and travel stop ring from the shaft.

13. Remove the drive assembly from the shaft with a lever and a coupling.

14. Remove the retaining ring 1 of the drive lever clutch with a puller.

15. We remove the washer 2 from the drive 4, the clutch 5 assembled with the drive lever 3.

When replacing only the drive, further work on disassembling the starter can be omitted.

16. Remove the drive shaft support retaining ring with a puller.

17. From the drive shaft 1, we successively remove the thrust washer 5, the shaft support 4, the sealing rubber ring 3 and the outer gear of the planetary gear 2

18. Use a Phillips screwdriver to unscrew the two screws securing the brush assembly to the back cover of the starter.

19. Remove the back cover.

20. Prying with a slotted screwdriver, remove the brush assembly from the armature collector.

21... Remove the front armature shaft support.

22... Remove the thrust washer from the armature shaft

.Image - DIY viburnum starter repair

23... Overcoming the force of the magnets, we remove the armature from the stator.

24. We inspect the collector and armature windings.

No traces of charring of the windings are allowed - such an anchor must be replaced.

25... We clean the contaminated collector with fine-grained emery paper, clamping the armature shaft through a strip of thick paper into the chuck of the electric drill. We rinse the anchor with water with a detergent to remove dirt, coal dust and abrasive residues and wipe it dry with a clean cloth, blow it off with compressed air from a tire pump.

26... We replace worn-out brushes (the height from the working edge to the output is equal to or less than 3.5 mm) and brushes that have mechanical damage.

27... We wash the parts of the gearbox and drive with white spirit or kerosene.

You can install the brush assembly on the starter armature manifold with a special mandrel or using a tool head of a suitable size and shape. If they are absent, the brushes can be installed without these devices. For this:

1) fasten the brush assembly to the back cover of the starter with two screws;

2) we lubricate the end of the armature shaft with two drops of engine oil;

3) insert four brushes into the corresponding brush holders. By inserting the springs of the brushes into the brush holders, we put on the brush assembly on the armature collector;

4) bend the outer stops of the springs of all four brushes with pliers with thin jaws;

5) insert the spring into the brush holder;

6) holding the spring with a screwdriver, bend the four spring stops with flat pipes. Install the other three springs in the same way;

7) insert the starter armature into the stator with the brush assembly and the back cover put on it (in this case, it is necessary to hold the armature so that its collector does not come out of engagement with the brush assembly).

Further assembly of the starter is performed in the reverse order of disassembly. At the same time, we apply SHRUS-4 grease to the gearbox parts. Before installing the drive, dip it in engine oil and let the oil drain. The bushings in which the armature and drive shafts rotate, as well as the screw splines of the drive, are lubricated with engine oil;

8) to make sure that the starter is assembled correctly, we check its performance before installation. as shown at the beginning of the section

It is more convenient to work on a viewing ditch or overpass. Disconnect the terminal of the wire from the negative terminal of the battery.
Remove the air filter (see "Removing the air filter").

Disconnect the traction relay control wire.

Using the "13" head, unscrew the nut that secures the tip of the wire connected to the "positive" terminal of the battery.

... and remove the wire end.

Using the "15" head, unscrew the two nuts of the starter fastening (the lower nut is not visible in the photo).

We remove the starter.
Install the starter in reverse order.
We disassemble the starter to replace the traction relay, brush holder with brushes and drive elements.
The traction relay can be replaced on the vehicle. For clarity, we show the replacement of the traction relay on the removed starter.

Using the "13" head, unscrew the nut of the lower contact bolt of the traction relay and remove the wire tip from it.

Use a Phillips screwdriver to unscrew the two screws securing the traction relay.

... and remove it.
We take out the spring and the traction relay armature from the front cover.

Using the "8" wrench, unscrew the two tie bolts.

Disconnect the case and the front cover.

We take out the anchor with a brush holder and a back cover from the body.

Use a Phillips screwdriver to unscrew the two screws.

... and remove the back cover.
A wavy spring washer is installed in the bearing seat of the rear cover.

We remove the insulated brushes from the brush holder.

Remove the cover of the planetary gear.

We take out three satellites of the planetary gear reducer of the drive.

Remove the rubber plug.
Pressing your finger on the end of the drive shaft.

... remove the drive assembly from the front cover.

Using two screwdrivers, unclench the support eyelet and remove the drive lever.
We support the end surface of the ring gear on a wooden block. By placing the jaws of the open-end wrench "on 13" on the stop ring of the drive gear ..

... and hitting the key with a hammer, press the planetary stop ring.

We pry the locking ring with a screwdriver and remove it.
Remove the drive gear travel stop ring.

Remove the overrunning clutch from the drive gear assembly.

Using a screwdriver, slide the retaining ring out of the shaft groove and remove it.

Remove the ring gear of the planetary reducer from the drive shaft.

We insert two metal plates between the bearing and the armature collector and rest them on the jaws of the vice, striking with a hammer, through a soft metal drift into the end of the shaft, press the bearing.
By external inspection we check the condition of the collector and the armature windings. Carbonization of the windings is not allowed. If the collector is slightly burned, we clean its plates with a fine abrasive cloth. In case of severe burning and wear of the collector, the armature should be replaced. Seizure and enveloping of the plain bearing material on the journal of the armature shaft are eliminated with the finest sandpaper, followed by polishing. With an ohmmeter, we check the short circuit of the armature winding to its core. The ends of the windings should be well soldered to the lamellas. Blackening of windings and separation of varnish insulation from them is not allowed.
When the brushes are worn out, we change the brush holder assembly.
We assemble the starter in the reverse order. We mount the brush holder before installing the armature in the stator. Before installing the brush holder on the armature collector, remove the springs of all four brushes so that the brushes slide into the guides.

To do this, bend the four clips of the spring holder.

... take out the spring.
After installing the brush holder on the armature collector, install the springs and bend the spring holders. We install the back cover and attach the brush holder to it.
Apply lubricant SHRUS-4 to the gears of the planetary reducer.

We install the stop ring of the drive gear on the stop ring using sliding pliers.

When installing the case on the anchor, hold the anchor with the handle of the hammer to prevent it from being attracted by permanent magnets and lower the case onto the back cover.

Starter repair Lada Kalina is a voluminous topic, and you can't put it in the framework of one short review. Let's try to at least figure out why this knot suddenly “does not twist” or does such work very hard.

One of the reasons may lie in a malfunction of the traction relay. It is indicated by characteristic clicks when starting the motor.

A burned-out winding, characteristic carbon deposits on the contact plate - this is “treated” by replacing the mentioned part. If you have some experience, you will not need to remove and thoroughly sort out the starter itself for this. If, after such a replacement, the car started up without any problems, we can say that it was lucky.

But clicks can be symptoms of a more serious breakdown, requiring a starter overhaul (in some cases - and its replacement).

The simplest diagnosis of a just removed starter is done as follows.

- Connect the terminal of the battery “earth” with one wire to the starter housing. We attach the other one to the “plus” of the battery and with the free end we bring it to the contact bolt of the traction relay (to which the wire from the starter has already been brought out). If the anchor remains motionless, the motor is faulty.

Image - DIY viburnum starter repair

According to the maintenance regulations, every 45 thousand km it is necessary to remove the starter, change the lubricant and clean the collector. I have big doubts that the service station does not approach this issue in the right way. Perhaps, if the starter is removed, it is unlikely to be disassembled, at best, oil drips onto the bendix axle (I will clarify the term “bendix”: this is how motorists call the overrunning clutch that comes into contact with the flywheel crown, by the name of the company that produced these parts, similarly as copiers are called “copiers”).
I believe that this approach is unacceptable. Checked on one Kalina, when I had to “once in a cold winter season” at -20 degrees to remove and sort out the starter because of the bendix jammed on the axis. The mileage was by this time 50 thousand km. I decided not to step on this rake and do everything as it should be. I have 41 thousand mileage, but while the weather was warm on the weekend, I decided to do everything in advance.
Looking ahead, I will say that the design of the Bosch starter is very reliable and, with proper maintenance, will probably last the entire life of the car. When disassembling, I did not find any signs of wear, but the grease was practically “dead”. Everyone knows what running without lubrication leads to. Therefore, we do not ignore starter maintenance. It doesn't cost a dime.

Overhaul of the starter does not require special knowledge and skills, but requires accuracy and patience.

Tools and materials: open-end and spanner wrenches for 10, 12 and 13, a Phillips screwdriver, a spanner wrench for 8 or a head, a flat screwdriver, a TORX 20 screwdriver, heads for 7 and 15, a drill with a drill d 5-6, sandpaper-zero or the material replacing it, CIATIM-201 (or LITOL-24), WD-40, 3 countersunk screws М5х35.

Removing the starter:
1. Remove the positive terminal from the battery (key 10)
2. Remove the air cleaner
3. Remove the terminal from the starter relay (blue arrow), move the protective rubber cap and unscrew the nut with a spanner wrench or head, remove the terminal from the battery (red arrow)

Image - DIY viburnum starter repair

4. Spray WD-40 onto the starter mounting studs (top - green arrow, bottom on the other side of the starter, not visible). You don't need to splash, but it will be much easier to unscrew and tighten the nuts by hand (checked). Unscrew both nuts with a 15-inch head. It is desirable that the head extension be slightly longer than the distance from the nut to the rear of the starter, as otherwise it is very inconvenient to unscrew the lower nut. We take out the starter.

Disassembly and assembly of the starter.

We install a starter and an air cleaner on the car.

In conclusion, a few words about lubrication. The slots on which the Bendix walks are recommended to be lubricated with CIATIM-201 grease. This grease actually differs from LITOL-24 only in less thickness. If there is no CIATIM, you can drop a drop of engine oil into LITOL, or you can use LITOL as it is. You just need to apply a moderate amount of grease, and the main enemy in this unit is not thick grease, but dirt. Periodic starter maintenance solves this problem.

A starter type 5702.3708 is installed on the Lada Kalina. Starter BOSH 0001108203 can be installed on some cars.

The armature shaft transfers rotation to the drive shaft through a planetary gearbox.

The planetary gears of the reducer rotate on needle bearings.

The starter drive consists of a pinion gear and an overrunning clutch.

Starter connection diagram in fig. one.

The traction relay is installed on the motor housing. The large current consumed by the starter when starting the engine is transmitted through the copper contacts of the relay.

The relay has two retraction and retention coils.

When the ignition key is turned to position II, a voltage is supplied to the control output of the traction relay "50" of type 902-3747-11, and from it, voltage is supplied to the two windings of the solenoid relay from the battery.

Under the influence of a magnetic field, the metal core of the traction relay, overcoming the force of the spring, is drawn into the coil. In doing so, he drives the starter drive lever.

The lever in turn extends the starter drive, bringing the pinion gear into engagement with the engine flywheel ring gear.

At the same time, a copper contact plate closes the contact bolts.

A current begins to flow through the windings of the starter armature, the armature rotates, starting the engine.

The negative terminal of the retractor winding of the relay is connected to ground through the starter armature windings.

After the contact bolts are closed, current stops flowing through the winding, and the core of the traction relay is held by only one winding, this makes it possible to reduce the heating of the relay windings and reduce the energy at the moment of starting.

We connect the negative terminal of the battery to the starter housing with one wire.

The second wire, connected to the positive terminal of the battery, is connected to the terminal bolt 2 of the traction relay, to which the starter wire is connected.

If the starter armature starts to rotate, the starter motor is working properly.

We connect the second wire to the contact bolt 1 of the traction relay. Using a screwdriver or other suitable metal object, we short-circuit terminal 3 and the contact bolt of the traction relay.

If there was a loud click and the starter armature began to rotate, it means that the traction relay is working properly.

To further check the starter, as well as to determine the cause of the malfunction, it is necessary to disassemble the starter.

1. Disconnect the "-" terminal from the battery.

Disconnect the traction relay control wire.

2. With a 13 head, unscrew the nut that secures the tip of the wire connected to the positive terminal of the battery

3. Remove the wire end

4. Turn off the two starter mounting nuts with the head.

6. Marking on the starter housing

With a 13 head, turn off the nut that secures the wire tip to the output of the traction relay. Remove the spring washer from the output

8. Remove the wire end

9. Unscrew the three screws securing the traction relay

10. Remove the traction relay from the starter

11. We take out the spring from the relay

12. Remove the anchor of the traction relay from the drive lever

13. Using a Phillips screwdriver, unscrew the two screws securing the bearing cover

Image - DIY viburnum starter repair

How to repair the starter 2110-3708010 "KZATE" with your own hands, it was installed on the cars VAZ-2110, Lada Kalina, Priora. In our auto services, they usually do not undertake the repair of a starter, but offer to buy it as an assembly.

A fairly detailed review, the author, in addition to the starter repair itself, also conducts a complete educational program on the structure of the part, common problems.

Video repair of a starter from VAZ 2110 3708010 "KZATE":