Vaz 21213 DIY repair starter

In detail: vaz 21213 do-it-yourself repair starter from a real master for the site my.housecope.com.

In Niva 21213 and 21214 cars, a mixed-type excitation starter is installed, with an electromagnetic-type traction relay and two independent windings. Four poles are fixed in the housing, one of which is connected in parallel, and the rest - in series. The casing with the cover is pulled together with a pair of bolts. Inside there is an anchor with a collector (the latter is of end type). The anchor rotates on sintered metal bushings pressed into the covers.

Despite the apparent structural complexity, starter repair is available even for beginners. The main thing is to have the necessary tools at hand, diagnose the malfunction in a timely manner and follow the manufacturer's instructions. Below we will consider what starter malfunctions exist, and how to fix the problems.

During operation, the following problems are possible:
1. After transferring the key in the ignition lock, the Niva car will not start, the starter will not turn. Causes of the problem:

  • The power supply of the machine is discharged.
  • The outputs on the battery or the terminals of the connected wires are oxidized.
  • Terminals are loose.
  • Turn-to-turn short circuit or damage to the traction relay winding.
  • The turning on starter relay is out of order or there is a break in the supply wire of the device.
  • Lack of closure between the "thirtieth" and "fiftieth" contact.

In the cases described above, the defective element is replaced or repaired, the contacts are cleaned.

2. When the key is switched in the ignition lock, the relay works, but the starter does not turn (hot or cold). Causes:

  • The battery is discharged or out of order.
  • Loosened fasteners of the cable ends connecting the motor with the body part.
  • Oxidized "plus" and (or) "minus" on the power supply, poor broach.
  • The collector is burnt out, the brushes are worn out.
  • The "plus" terminal of the brush holder was on the ground.
  • An open circuit occurs in the armature and (or) stator windings.
Video (click to play).

Depending on the malfunction, the defective part is replaced or repaired, the contacts are cleaned or the short circuit is eliminated.

3. As soon as voltage is applied to the starter, the relay is activated multiple times with subsequent disconnection. The engine does not turn (the problem manifests itself on hot or cold).

  • Short circuit or open circuit of the relay coil.
  • Battery discharge.
  • Reducing the voltage on the relay contacts (occurs when the wires are oxidized).

4. After energizing, the starter armature rotates, but the engine flywheel does not. Causes:

5. A strange sound appears when scrolling the anchor:

  • The starter fasteners are loose or the device is attached at an angle.
  • The integrity of the flywheel gears or drive gear is impaired.
  • Bearing bushings worn out.
  • The starter fasteners are loose.

6. The gear hangs in fixing with the flywheel:

  • Lever, traction relay, or spline clutch seized.
  • The ignition switch is broken (at the junction of the contacts).
  • The traction relay springs are loose or out of order.


Regardless of whether the engine is turning or not, each of the above cases requires repair or replacement of damaged components... How to do this work, we will consider below.

Algorithm of actions:
Use a thirteen wrench to loosen the fastening of the conductor connected to the traction relay. Discard the tip.

To check the VAZ-2121 relay, apply a voltage of 12 Volts to the relay output, and apply "-" to the case. Connect the resistance meter to the terminals. If the relay is intact, then the armature extends the overrunning clutch, and the contacts are closed. If a part is found to be defective, replace it.

  • To remove the traction relay, use a slotted screwdriver to remove the three screws.
  • Pull the spring rod out of the device casing, and install the new traction relay according to the reverse algorithm.

If the problem persists, continue with the repair:

  • Take a Phillips screwdriver and twist off a couple of screws, then remove the cover.
  • To check the integrity of the brushes, twist the fixing screw of the contact conductor, and then use a screwdriver to squeeze the spring. Next, it remains to remove the brush.
  • In the same way, take out the other three brushes and inspect them. If at least one of the brushes has a height of up to 1.2 centimeters, then it must be replaced (further use of the part is not recommended).
  • Connect a multimeter to the starter windings (one at a time) and check for a short circuit. The task is to make sure that there is no short circuit between the turns and to the case.
  • Using a screwdriver, lift the locking ring, remove the washer from the shaft and use a ten wrench to twist a pair of tie bolts.
  • Separate the starter elements and remove the insulating tubes.
  • Inspect the appearance of the windings and the collector. Remove traces of the collector's burning with a sandpaper. If this part is badly worn out or charred, then the repair is useless - the device is changing. Remove seizures with a fine-grained emery cloth, and then polish the product.
  • Use a multimeter to check the armature for short circuit. Change the node if you find a problem.
  • Get the rubber seal out of the drive cover and remove the washer to adjust the armature.
  • Remove the link pin cotter pin and select the latter. Next, you need to remove the armature together with the drive.
  • Pry up the screwdriver drive arm and remove it.
  • Check the car's gear - it should scroll easily left and right. Also inspect for nicks and chips. If the gear is worn out or the clutch is out of order, then it is useless to make repairs - change the assembly.
  • Support the shaft against a piece of wood and knock out the stop ring.
  • Use a screwdriver to pry on the ring and remove it.
  • Remove the stop ring and freewheel with gear.
  • Collect the starter by the reverse algorithm.

Blow out the cover and the Niva brush holder with air.
Lubricate the eyeliner ring with a lubricant (Litol is suitable).
Treat the splines of the shaft and bushing with engine oil.
Correct repair of the starter is a guarantee of a clear start of the engine, both hot and cold. The main thing - timely diagnose malfunction and correct it correctly.

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