Removing and installing the windshield wiper gear motor - VAZ 2107
Removing the windshield wiper gear motor from a VAZ 2107 car
1. Prepare the VAZ 2107 car for operations (see “Preparation of the VAZ 2107 car for maintenance and repair”).
2. On a VAZ 2107 car, disconnect the wire from the negative terminal of the battery (see “Battery for a VAZ 2107 car - removal and installation”).
3. Using a 10 mm socket wrench, unscrew the union nuts securing the windshield wiper blade arms.
4. Using an open-end wrench or other suitable tool, remove the levers of the windshield wiper blades from the conical splines of the drives. If it is difficult to remove the windshield wiper blades, apply a penetrating lubricant to the splined surface of the drives.
5. Using a 21 mm socket wrench (or a spark plug wrench), unscrew the nuts securing the windshield wiper arm drives.
6. Remove the plastic bushings and rubber gaskets from the wiper arm drives.
7. Disconnect the windshield wiper wiring harness block.
8. Lifting the edge of the seal, remove the windshield wiper wiring harness from the slot in the engine compartment partition.
9. Using a 10 mm socket wrench, unscrew the two nuts securing the windshield wiper gear motor to the body of the VAZ 2107 car.
10. By removing the windshield wiper arm drives from the holes in the body, remove the windshield wiper from the VAZ 2107 car.
11. Using a slotted screwdriver, remove the spring retainer and washer from the wiper rod axis. Disconnect the windshield wiper rod.
12. Using a 10 mm socket wrench, unscrew the nut and remove the crank from the drive splines of the windshield wiper gear motor.
13. Using a 10 mm socket wrench, unscrew the three bolts securing the windshield wiper gear motor to the bracket.
14. Remove the bracket along with the rods.
15. Having unfastened the tensioning belt, remove the dirt cover for the windshield wiper gear motor.
Installing a windshield wiper gear motor on a VAZ 2107 car
1. Before installing the windshield wiper gear motor on a VAZ 2107 car, we wash the rods with levers from dirt. Lubricate the hinges of the windshield wiper arms with grease.
2. Connect the connector block of the new windshield wiper gear motor to the wiring harness block. We connect the wire to the negative terminal of the battery. Turning on the ignition, turn on the intermittent operation of the windshield wipers for a short time. In this case, the windshield wiper gear motor drive will be installed in a position corresponding to the extreme left position of the windshield wiper blades. Turn off the ignition and disconnect the wire from the negative terminal of the battery.
3. Disconnect the wiper gear motor connector.
4. We connect crank A with rod B. Install the windshield wiper lever on the splined drive of the gear motor, orienting it in a position so that the crank and the wiper rod are parallel.
5. Further installation of the windshield wiper gear motor on a VAZ 2107 car is carried out in the reverse order. Before installing the wiper blade drives into the body holes, lubricate the threaded and splined parts of the drives with grease.
Removing the trapezoid and replacing the wiper motor on a VAZ 2107
From the instructions we will learn how to independently replace the wiper motor, as well as dismantle the trapezoid.
Of course, most often we need to change wipers when the wiper drive fails. Why does it fail?
The most common reason is if windshield wipers suddenly freeze to the glass during the cold season.
Of course, the wipers will begin to feel a huge load, and this contributes to the fact that the drive begins to break down.
Below is a photo report in which you can learn more about the replacement procedure.
The tools we will need are:
Spanner 22.
Ratchet wrench and socket for ten.
These are all the tools we used while working.
First, unscrew the nuts that secure the wiper arms.
Now carefully bend the lever and remove it from its seat.
Let's take a twenty-two wrench and unscrew all the bolts that secure the trapezoid on both sides of the windshield wiper (right and left).
Remove the plastic inserts.
Next we need to get rid of the rubber seal that is on the hood.
Disconnect the power plug from the motor.
You can get it complete with a wire.
Next we dismantle the motor. We unscrew all the nuts that secure it. By the way, we can access them after we peel back the cover.
To make it more convenient for you, take a ratchet.
Now press on the protrusions of the slots, they are on the other side and the levers are put on them so that they lower inside. Afterwards, the trapezoid can be easily reached by rocking movements from side to side.
This is the result we will get at the end of the work.
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How to replace the wiper motor on a VAZ 2107
1. We prepare the car for operations (see “Preparing the car for maintenance and repair”).
2. Disconnect the wire from the negative terminal of the battery (see “Battery - removal and installation”).
10
mm
socket wrench , unscrew the union nuts securing the windshield wiper arms.
4. Using an open-end wrench or other suitable tool, remove the levers from the conical splines of the shafts. If removal is difficult, apply penetrating lubricant to the splined surface of the axles.
21
mm
socket wrench (or a spark plug wrench), unscrew the nuts securing the shafts of the brush levers.
6. Remove the plastic bushings and rubber gaskets from the shafts.
7. Disconnect the windshield wiper wiring harness block.
8. Lifting the edge of the seal, remove the windshield wiper wiring harness from the slot in the engine compartment partition.
10
mm
socket wrench , unscrew the two nuts securing the gear motor to the body.
10. By removing the lever shafts from the holes in the body, remove the windshield wiper.
11. Using a slotted screwdriver, remove the spring retainer and washer from the thrust axis. Disconnect the rod.
10 mm socket wrench
Unscrew the nut and remove the crank from the gearmotor shaft splines.
10 mm socket wrench
unscrew the three bolts securing the gear motor to the bracket.
14. Remove the bracket along with the rods.
15. Having unfastened the tightening belt, remove the dirt-proof cover of the gearmotor.
1. Before installation, wash the rods with levers from dirt. Lubricate the lever hinges with grease.
2. Connect the connector block of the new gear motor to the wiring harness block. We connect the wire to the negative terminal of the battery. Turning on the ignition, turn on the intermittent operation of the windshield wipers for a short time. In this case, the gear motor shaft will be installed in a position corresponding to the extreme left position of the windshield wiper blades. Turn off the ignition and disconnect the wire from the negative terminal of the battery.
3. Disconnect the gear motor connector.
4. Connect crank A to rod B. Install the lever on the splined shaft of the gear motor, orienting it in a position so that the crank and rod are parallel.
5. Further installation of the gearmotor is performed in the reverse order. Before attaching the brush shafts to the body holes, lubricate the threaded and splined parts of the shafts with grease.
Windshield wiper failure in inclement weather makes further driving difficult. If you continue, there is a high chance of getting into an accident. Most faults can be eliminated on the road, but for some it is better to have more acceptable conditions.
Windshield wiper device for VAZ 2107
The windshield wiper system includes:
- wiper motor VAZ 2107;
- electric glass washer pump;
- fuse box;
- relay;
- three-position switch (located on the three-lever switch);
- windshield wiper blades.
Standard wipers have two operating modes: constant and intermittent. Modes can be changed by changing the position of the switch. Intermittent mode is ensured by the operation of a special relay.
What is a windshield wiper motor?
All cars, trucks and other vehicles are already equipped from the factory with mechanisms for cleaning glass, including windshield wiper blades. In its standard form, it consists of two holders with rubber bands on the windshield and one holder on the rear window (for cars with a station wagon or hatchback body). All windshield wipers have three modes of operation, during which they move quickly, slowly or at an intermittent pace.
All windshield wipers are equipped with a special electric motor with geared torque transmission. Two mechanisms designed to operate the windshield wipers are attached to the motor shaft. One rotates the wipers to a certain position on the windshield, and the second is responsible for moving the wipers to their original position. The lever system supports the wipers throughout operation.
READ How to attach the rear bumper to a VAZ 2115
In fact, the electric motor rotates without stopping, and a special mechanism is responsible for moving the wipers, which allows them to rotate and quickly return to their original position. This mechanism is called a trapezoid wiper. It consists of a set of levers that move the wipers across the windshield.
In addition to the windshield wipers, the glass washer system is also responsible for a normal view of the front of the road. It is a tank with a special liquid, which, under the action of a pump installed in the tank, is pumped into the system and sprayed on the windshield. It is extremely important that these mechanisms are always in good working order. This is due to the fact that on the planned day of the trip the weather can easily turn bad and driving with a faulty windshield wiper system can become very dangerous.
If the wipers stop turning on
When the VAZ 2107 windshield wiper stops working in both positions of the mode switch, you should start looking for the fault with the wiper fuse. It is installed in the electrical network to protect it from overloads that occur during malfunctions, short circuits or increased load on the wiper motor. If the fuse is working, you should check its contacts. Often they are highly oxidized and prevent the passage of current. Cleaning the contacts is simple - you need to remove the fuse and clean the contacts with a knife, screwdriver or sandpaper. Usually these actions are enough, but sometimes the reason lies in a malfunction of the relay, switch or motor. But more on that below.
Wipers for headlights
Some owners of “Sevens” install windshield wipers on the headlights for ease of use of the headlights. With the help of these elements, there is no need to constantly clean the optics from dirt manually, which is especially important in rainy weather. To implement the mechanism, the following list will be required:
- headlight cleaner motors 2 pcs. (left and right);
- two transition strips;
- brush leads;
- brushes;
- washer reservoir with two pumps;
- five-pin relay;
- wiring with blocks;
- solenoid valve from the G8;
- tee and washer tube about 2 m.
As for the brushes themselves, they can be installed from both VAZ 2107 and VAZ 2105.
If the wipers do not work intermittently
This problem is associated exclusively with a malfunction of the VAZ 2107 wiper relay. The cyclic operation of the wipers is ensured by closing/opening the relay contacts and, accordingly, the power supply circuit of the wiper motor.
The test should begin by monitoring the power supply to the relay block. This is done like this:
- remove the relay;
- turn the wiper switch to the intermittent position;
- Use a control indicator to check the presence of voltage at the terminal.
If there is no voltage, it is necessary to replace the switch or repair the open circuit. If voltage is supplied but the relay does not work, the latter must be replaced. The design of the relay does not provide for the possibility of repair.
Windshield washer does not work
To remove dirt from the windshield, the washer is used together with the windshield wiper. The device sprays water or a special liquid. The main elements of this mechanism are:
- fluid reservoir;
- motor;
- nozzles;
- connecting tubes.
The washer pump is located in the reservoir and supplies fluid through tubes to the nozzles
During the operation of a car with a washer, various problems may arise that lead to its inability to work:
- motor failure;
- fuse blown;
- kinking of tubes;
- breakdown of the steering column switch;
- poor contact on the power supply circuit.
Checking the motor
It is easy to check if the washer pump is not working properly. To do this, just open the hood and pull the lever of the steering column switch, which is responsible for the function of supplying fluid to the windshield. At this moment, the operation of the motor will be clearly audible. If this does not happen, then the malfunction may be caused either in the pump itself or in the fuse or other part of the electrical circuit. To make sure that the problem lies in the motor, we use a multimeter to measure the voltage when the washer is turned on. If there is voltage, but the pump does not work, then you need to take care of replacing it.
Video: checking the wiper motor on a “classic”
Injectors
If the motor is running, but liquid is not supplied through the nozzles, then the problem will not be difficult to identify, since there are only a few reasons for this phenomenon:
- clogged injector fittings;
- the supply tube has come off;
- kinking of the tube.
The malfunction can be determined by inspecting the tubes from the motor to the injectors. If there are no areas with kinks and the tube has not fallen off, then the reason lies in clogged nozzles, which can be cleaned with a sewing needle and blown out with a compressor.
If the motor and washer tubes are in good condition, then it is worth cleaning the nozzles using a needle and a compressor
Fuse and mounting block
The integrity of the fuse is checked in the same way as for windshield wipers. The same protective element as for the wipers is responsible for the operation of the washer. In addition to the fuse, sometimes the track in the mounting block through which power is supplied to the washer burns out. In this case, you need to disassemble the fuse box and restore the current-carrying element by soldering, having first cleared the varnish from the track.
Sometimes a track burns out in the mounting block, which can be restored by soldering
Understeering's shifter
You should start checking the steering column switch on a VAZ 2107 if the fuse, motor and the entire electrical circuit through which voltage is supplied to the pump are in good condition. In this case, the wiring should not have breaks, melted insulation or other visible damage. To check the steering column switch, only a multimeter will be enough. Having disconnected the connectors from the device in question, we connect the probes of the device in the dialing mode with a two-pin block. If the switch is working properly, then when the washer is turned on, the device will show zero resistance. Otherwise, the mechanism will have to be replaced.
Video: checking the wiper mode switch
If the wipers do not stop at the lowest point
Sometimes when you turn off the wipers, the brushes stop not at the lowest point of the trajectory, but in another arbitrary place.
The problem lies not in the VAZ 2107 wiper relay, but in the drive gearbox. It contains a limit switch actuated by a cam. The operation of the cam controls the position of the brushes after turning off the power on the switch lever. Gearbox failure most often occurs in winter, when the driver turns on the wipers that are frozen to the windshield.
To replace the gearbox, you must dismantle it along with the engine and install a new one.
Causes of malfunction
The weak point of this motor is that there are a fairly large number of contacts along the power circuit. This affects both the voltage and the possible causes of malfunctions: the contact on one link of the chain is lost or unstable, and stable operation of the windshield wiper is no longer possible. In this case, it is quite possible that the motor is not at fault. Therefore, before you decide that it needs to be replaced, check the contacts along the entire circuit.
- Fuse. Pay attention to the fuse, it may also be faulty;
- Performance. Next, you should check the switch itself for serviceability;
- Operating parameters. Using an ohmmeter, check the resistance in the circuit breaker between the terminals. If it shows “zero”, you need to change the breaker;
- Correct connection. Without turning on the wiper, measure the resistance between the fourth terminal and ground. It must also be zero. Otherwise, you need to properly restore the grounding;
- Voltage. Turn the windshield wiper to low speed and check the voltage at terminal five. It is equal to the battery voltage, but the gearmotor does not work? It needs to be changed.
Removing the gearbox and wiper motor of VAZ 2107
To perform the work, you will need open-end or socket wrenches for 10 and 22. The procedure is as follows:
- Use a 10mm wrench to unscrew the nuts securing the wipers;
- remove the VAZ 2107 wipers from their seats (you must first bend them);
- Using a 22mm wrench, unscrew the trapezoid fastening of the windshield wipers and remove the plastic inserts;
- remove the rubber seal in the engine compartment;
- disconnect the power terminals of the windshield wiper;
- pull out the power cord from the hole in the car body;
- unfold the plastic protective cover installed on the wiper motor;
- Using a 10mm wrench, unscrew the nuts securing the wiper gearbox to the body;
- remove the wiper gearbox and the bracket with rods from the installation site (first you need to press the protrusions of the levers inward so that they fall through);
- unscrew the nuts securing the trapezoid to the gearbox and securing the gearbox to the crank;
- disconnect the wiper motor.
After this, you can repair or replace the faulty parts and install the wiper structure in place by performing the operations in reverse order.
VAZ 2110 windshield wiper motor - advice from car owners on repair and replacement
How to disassemble and repair the windshield wiper motor of a VAZ 2110
Repair of VAZ 2110 wipers mainly consists of straightening damaged or deformed levers or rods, and if this is not possible, then replacing them with new parts. If the VAZ 2110 windshield wiper motor is in faulty condition, it will have to be replaced with a new one. Regarding repair work, we can say that the VAZ 2110 windshield wiper motor only allows for the replacement of gears, as well as cleaning the contacts of the ring switch and cleaning the commutator.
So, in order to repair the windshield wiper on a VAZ 2110, you must first remove the windshield wiper from the car. To do this, first of all, the nut securing the wire is unscrewed, the wiring is removed from the gearmotor shaft, the three bolts securing the gearbox are unscrewed, then the wiper motor of the VAZ 2110 car is removed from the bracket, and the protective film is removed from it. The next step is to unscrew the two fastening screws and remove the plastic cover. Then the two fastening screws are unscrewed again, after which the panel is removed along with the switch contacts and the gasket is removed. Next you need to pull out the gear, plastic washer and gear motor shaft, then pull out the intermediate gears. To avoid any difficulties in further assembly, the gears should be marked relative to their axes, because they have opposite inclination of the teeth.
Modification of the windshield wiper relay for VAZ 2107
The wipers of the “Seven” do their job perfectly in heavy rain. Problems arise during drizzling rain, when selecting a suitable operating mode becomes a problem. As a result, the wipers rub against dry glass, the rubber bands wear out intensively, and the glass can be scratched. To avoid this, the driver has to constantly turn the wipers on/off manually, which distracts from driving.
You can modify the VAZ 2107 windshield wiper relay by expanding the range of adjustment of the frequency of operation of the wipers.
First you need to remove the relay, which is located in the cabin near the hood opening lever. To remove it, you need to unscrew two screws and disconnect the block.
Next, it is necessary to replace and modify the resistor responsible for the pause between switching on the wiper motor.
A 62 kOhm resistor installed on the relay board provides a 4 second turn-on interval. It should be replaced with a resistor of half the resistance, which will provide a minimum pause between switching on of 2 seconds. But it should be soldered onto the relay board with only one leg.
In the resulting circuit break, it is necessary to solder wires with a variable resistor of 100-500 kOhm (one of the wires going to the variable resistor must be soldered in place of the second leg of the “native” resistor, and the second one must be soldered to the unsoldered leg of the constant resistor.
After connecting the variable resistor, close the relay cover by gluing it in place. This will protect the contacts and printed circuit board from oxidation and damage.
The wires going to the variable resistor must be of sufficient length so that they make it possible to install the variable resistor in a place convenient for the driver, for example, on the dashboard of the “seven”.
After installing a tuned wiper relay, it becomes possible to adjust the interval between turning on the wiper motor from 2 to 8-10 seconds. Thanks to this, you can select the optimal mode corresponding to the intensity of rain.
