DIY gazelle 406 starter repair

In detail: do-it-yourself gazelle 406 starter repair from a real master for the site my.housecope.com.

We will show you how to repair a starter in a Gazelle with your own hands. The starter was produced in Belarus. After watching the video, you will learn how to disassemble, repair and diagnose starter malfunctions. Most often, the problem is in the brush assembly, so we start disassembling from it. And the symptoms of a malfunction indicate this, since the retractors clink, but there is no response from the starter. We remove the back cover and look at the condition of the brushes, in our case they are in working order, but due to the ingress of dirt, water, one brush “did not come out”, it is necessary to clean and lubricate everything.

Video starter repair in Gazelle:

Disassemble the starter on your own only if you understand the operation of its mechanisms, you are sure that then you will be able to assemble everything correctly. It is not difficult to repair it, if you have the proper experience you can handle it, we recommend watching the video in full, including disassembly, maintenance and assembly. Lubricate where needed with clean engine oil and a disposable syringe.

Remove the starter (see Removing the starter from the engine).

Using the "13" key, unscrew the nut securing the power wire to the traction relay and disconnect the wire tip.

... or three screws (for the ZMZ-402 engine).

... and remove the core with the stem.

We unscrew the two screws securing the cover.

Prying off with a screwdriver, remove the retaining half-ring.

Using the "10" wrench, unscrew the two fastening nuts ...

We move the body off the studs.

Use the "10" wrench to unscrew the nut ...

… And use a screwdriver to turn off the lever axis.

We remove the insulating tubes from the studs.

We take out the anchor from the front cover.

Leaning the anchor axis on a wooden block, knock down the thrust sleeve through the "13" spanner key.

Video (click to play).

Prying off with a screwdriver, remove the snap ring.

We remove the thrust sleeve from the anchor, ...

... complete drive ("bendix") and intermediate support.

We use an ohmmeter to check that the stator windings are not shorted to the housing.

Image - DIY gazelle 406 starter repair


Defects in the armature windings are determined visually - the places of short circuits or breakdowns to ground turn black.
The collector must be free of burn marks and strong wear.
Before assembling with compressed air, we remove coal dust from the body and the brush holder.
We assemble the starter in reverse order, lubricating the bushings and drive parts with a thin layer of CIATIM-201 grease or engine oil.
We put the thrust sleeve on the shaft so that the tapered groove faces the groove for the snap ring. Next, we put the spring ring in place, press the sleeve onto it with a hammer blow through the key "14" or press it with sliding pliers.
Install the starter in the reverse order to removal.

A car starter is a sophisticated electrical device that can be used to start the engine by simply turning the ignition key. Any of them is designed for hundreds of thousands of successful launches, and with proper care, it can last a long time, starting a car engine without problems in any conditions. The lack of timely diagnostics and replacement of worn parts can lead to such a situation that far from home or a car service, it will simply fail, delivering a huge number of problems to the car owner.

It is worth noting that although an independent starter repair is possible, its implementation requires experience and a set of elementary tools, which are simply not at hand in a long trip. Accordingly, repairing the starter motor may not be possible, which is almost guaranteed to immobilize the vehicle.But it is far from always impossible to start the engine due to a malfunction of the starter, and before undertaking its "repair", you should pay attention to other components - for example, a flywheel or a storage battery. In addition, it is impossible to repair a starter with your own hands if you do not know how it works.

At the heart of any starter is a powerful short-lived electric motor.

Starter operation when trying to start the car is as follows:

  • after turning the ignition key, voltage begins to flow to the windings of the electric motor;
  • the bendix pushes out the gear, which is connected to the flywheel;
  • after a successful crankshaft spin, the bendix gear is thrown back to its original position, at the same time the electric circuit is opened and the starter stops working.

Despite the fact that there are several types of starters, their electrical part is the same, and the only differences are in the mechanisms for automatic decoupling from the flywheel. The friction damper may also differ. In addition to the classic design, the most widespread is a starter with a planetary gearbox - it is installed on diesel and powerful gasoline engines. Such designs have some advantages over classic options:

  • more compact dimensions;
  • increased efficiency;
  • easier start of the motor with a weak battery charge;
  • this starter requires less starting current, which increases the reliability of starting in cold weather.

Of course, a more complex design makes it much more difficult to repair the device yourself.

A qualitative check of this unit is impossible without dismantling it. It is best to carry out work in a pit, which will provide the ability to move freely under the car. A standard set of wrenches will be required from the tools, and the presence of socket wrenches with a flexible extension will greatly simplify the task. Dismantling is carried out in several stages.

  1. The terminals are removed from the storage battery.
  2. Electrical cables are removed from the pins of the solenoid relay and terminals.
  3. The motor protection is dismantled.
  4. After unscrewing the nuts that secure the starter to the engine block, it can be removed.

Carrying out periodic control of the brushes, you can timely notice a critical decrease in their height, which should not be less than 12 mm. To get to the brushes, unscrew the screw securing the contact wires and squeeze the spring - after that they can be freely removed. After measuring the length, a decision is made to install new ones or return the old ones to their place. As practice shows, if the starter is already dismantled, and new brushes are in stock, it is better to replace them. It should be understood that replacing the starter brushes is an operation that must be performed regularly, especially with frequent engine starts.

This is a more laborious process than removing the brushes. Initially, it is required to remove the washer from the axle and unscrew a pair of tie bolts. After disconnecting the casing of the device, you will have to remove the tubes of insulation of the screed bolts from it. Now you should evaluate the external condition of the collector and the windings. There should be no obvious black marks on them, as well as on the collector itself. If they are still there, then it is advisable to replace the collector, although it can be cleaned with fine-grained emery paper as a temporary measure.

To do this, you will have to get the anchor out of the case. To get to it, you must remove the washer from the axis of the anchor itself, strip the axis of the lever and knock it out - after that it will be possible to remove the anchor along with its drive. The clutch drive lever is removed and the free rotation of the gear is checked by hand: it should be completely free in one direction, and completely blocked in the opposite direction. Chips, and even more so chips should not be detected. If free rotation is difficult or impossible, and there are traces of wear on the teeth, the coupling together with the gear are replaced with new ones - it is unacceptable to operate such a device.

In the process of gradual disassembly of the starter, using an ohmmeter, the windings of the starter itself and the armature are tested for the presence of traces of short circuits. Checking the starter armature is mandatory, since then disassembling it for the sake of this is quite problematic. Reassembling the assembly should be done carefully and slowly. Before that, all surfaces are thoroughly cleaned of dust and dirt, and plastic parts are necessarily lubricated with one of the special lubricants, for example, lithol. All metal parts, which are in excess in the starter, are treated with engine oil. How you can perform high-quality and self-diagnosis is shown in the video: