Failure of the starter to start the engine can occur due to a seized solenoid in the pull-in relay. In this case, the electromagnetic force is not able to overcome the resistance of the resulting load and move the bendix to engage it with the flywheel crown and turn the engine crankshaft. If this situation arises, for an emergency start of the engine, jumper the two thick terminals on the retractor relay with the ignition switch turned on, and you can independently get to the place of repair.
Necessary
- - screwdrivers - 2 pcs.,
- - a set of small wrenches,
- - pliers.
Instructions
Step 1
The most common causes of starter failure are the failure of the retractor relay, including sticking of the solenoid and the formation of carbon deposits on the contacts, as well as the bendix, in which the clutch and the drive gear are subject to intense wear due to heavy loads. Much less often, the armature and brush support bushings are replaced.
Step 2
In the event of any of the listed malfunctions, the starter must be removed from the engine to eliminate them. Of course, the on-board network of the car at this stage is de-energized in advance.
Step 3
To repair the solenoid relay, remove it from the starter. This can be done by unscrewing the two bolts of its fastening and disconnecting the stator winding bus from the lower terminal. Then disengage the solenoid tip from the bendix fork.
Step 4
Remove the electromagnetic core. Examine it for any burrs on its surface. If there are any, then their elimination is carried out by grinding with fine emery paper, in which the grain size of the abrasive material is closer to "zero". The inside of the surface of the solenoid coil is repaired in the same way as described above, but in this case the sandpaper is wrapped around a round stick of a suitable size.
Step 5
To restore the contact group of the solenoid relay, flare the back cover and unsolder the wiring connected to the electromagnet. Remove the retaining bracket from the large copper disc, remove it, flip it over, and reinstall it. On the back of the cover, made of dielectric material, use a 13 mm wrench to unscrew the two washers securing the copper bolts. Rotate them 180 degrees around their axis and tighten in this position.
Step 6
As a result of the repair, the starter will no longer give "surprises" to its owner and will serve for a long time.
