How to connect the stove to a VAZ 2106, do-it-yourself replacement, step-by-step description

INDEPENDENT REPLACEMENT OF HEATER IN VAZ 2106

Parts of the interior heater of the VAZ 2106

Heater parts:

1 — air distributor cover.
2 — fan housing.
3 – additional resistor.
4 — fan impeller casing.
5 — heater radiator housing.
6 – housing cover gasket.
7 — air supply hatch cover.
8 – clamping bracket for fastening pipes.
9 – spring holder for fastening the fan casing.
10 – radiator gasket.
11 — heater radiator.
12- heating tap.
13 – fan impeller.
14 – electric fan motor.
15 — spring bracket for mounting the electric motor.
16 – rubber cushion of the electric motor.
17 — bracket for fastening the air distributor cover.

Installing a motor from a chisel stove into a stock stove with modifications

I would like to bring to your attention my version of a modification of a classic stove. First, I will say that a serviceable Zhiguli heater copes with its task quite successfully, the car is warm even in severe frost, but at the same time it has a number of significant shortcomings that every classic car owner dreams of getting rid of. This includes strong annoying noise, insufficient airflow of the windshield and side windows, and a low number of heater fan speeds. It all started with the fact that a fifth assembled stove and an old chisel stove motor with an impeller ended up in my hands “completely free of charge.” This allowed me to experiment slowly while continuing to drive my car with the stock heater.

Read more about Installing a motor from a chisel stove into a stock stove with modifications
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PROCEDURE FOR REPLACING THE VAZ 2106 HEATER

The vehicle interior is heated by engine coolant. The heater design details are shown in the diagram.

Many car enthusiasts only think about the heating system when it gets cold. But sometimes the heater can remind you of itself with an unpleasant smell in the cabin and the appearance of puddles of antifreeze under the feet of the driver or passenger in the front seat. This means that the heater core is leaking and needs to be replaced. This work can be done with your own hands.

To do this you will need:

open-end wrenches for 7 and 10;
flat and Phillips screwdriver;
Antifreeze supply is approximately 1.5 liters;

Replacing the heater radiator VAZ 2106

Open the heating valve and remove the vacuum hose and wiring harness

So:

Having moved the heater control lever to the right all the way, open the heating tap and drain the Antifreeze from the heater radiator;
in the engine compartment, release the fastening of the vacuum hose and wiring harness and move them to the side, thereby providing access to the heater hoses;

Release the clamps, remove the hoses and gasket

loosen the hose clamps and remove them from the pipes;
then unscrew the two bolts that secure the seal to the shield;
carefully remove the sealing gasket from the radiator pipes so as not to damage it;

PLEASE NOTE: THERE ARE TWO SPACE WASHERS INSERTED INTO THE GASKET, IT IS PREFERABLE NOT TO LOSE THEM.

remove the electric heating fan together with the casing (how to dismantle the electric fan is described below);

WARNING: BEFORE REMOVING THE ELECTRIC FAN, DISCONNECT THE BATTERY NEGATIVE TERMINAL.

Replacing the heater radiator on a VAZ 2106

We take out the radiator and remove the heating valve VAZ 2106

So:

we take out the heating radiator along with the tap, lower it down as far as possible and remove it along with the pipes;
unscrew the bolts securing the outlet tube and disconnect the tap;

RECOMMENDATION: REMOVE ALL SEALING GASKETS, INSPECTION THE FLANGE CONNECTIONS, CLEAN THEM IF NECESSARY, INSPECTION THE ATTACHMENTS OF THE PIPE TO THE RADIATOR, IF THERE ARE SUSPECTS OF LACK OF TIGHTNESS, IT MUST BE ELIMINED IMMEDIATELY, REPLACEMENT IS MANDATORY REPLACE ALL GASKETS WITH NEW ones.

install a heating tap on the new radiator, connect all the pipes;
install the new radiator in the reverse order;
set the heating tap control lever to the extreme right position and make sure that the tap is fully open, connect the tap control cable;
Replenish the engine cooling system, start the engine and carefully check all connections for leaks.

Replacing the heater cable of a VAZ 2106

Begin:

remove the instrument panel cover; in this case, you need to push the heating system control panel inside;

Remove the air damper drive cable

Having removed the latches, disconnect three cables from the heater panel: 2 air damper control cables and one heater valve control cable;

Loosen the heater tap rod

Remove the heater tap drive cable

Using a screwdriver, disconnect the cable from the heater tap drive;
remove the cable from the holder;
We also remove the heater damper control cable;
we take out the old cables and insert new ones;

Installing a new cable

connect and fix the cable for driving the air dampers on the heater;
using a cable, install the damper for blowing the windshield in the fully open position;
set the knob on the heater panel to the “windshield blowing” position;
in this position, connect the heater air damper control cable and fix it;
we secure the air damper drive cables in the heater holder;

Warning. When you install the instrument panel, you will not see the windshield defroster. To check its correct operation, you need to attach the cables to the control panel and turn on the fan. After this, turn the air damper control lever to blow the windshield. In this position, air should flow to the windshield, but there is no air blowing to the foot nozzles. If this is not the case, then disconnect the air damper cable from the panel and turn the air control knob 360˚, then attach the cable and check the air flow distribution again.

Connect the cable to the heating tap

connect and secure the radiator damper control cable to the heater;
turn the radiator choke control cable clockwise until it stops;
after this, you need to set the heater knob to the “on” position;
in this position, connect and fix the heater tap cable;

Replacing the heating motor of a VAZ 2106 Before starting work on replacing the heating fan motor, you must disconnect the negative terminal from the battery.

Types of systems

To upgrade your VAZ-2106 car and its heater with your own hands, you can choose one of three current methods.
They are used quite actively and make it possible to increase the level of comfort inside the interior of domestic classics. Additional electric heater. This is a device for heating the interior, which is quite simple and elementary in terms of use and installation. Electric heaters operate by connecting to the cigarette lighter on the front panel. To complete the installation, no special skills are required, since the heater starts working immediately after connection. However, this is an electric unit that will take energy. When operating at maximum speed, the battery will quickly drain. So, when the engine is not running, you should not use such a device. In fact, this is an ordinary hair dryer with a heating element and a fan, which creates the effect of additional heating inside the VAZ-2106. Autonomous heaters. For the VAZ-2106, such devices are practically irrelevant. More often used for additional equipment of trucks, large minivans or vans. The heater receives power from fuel. It has an autonomous combustion chamber and exhaust system. The operation of the system does not depend on the car engine. The unit has complex installation and negatively affects fuel consumption. And buying an autonomous system will cost significantly more. Externally, it is a metal structure with a combustion chamber and the necessary electronics. Auxiliary radiators

To heat the interior, car owners, including the VAZ-2106, where the standard stove does not cope with its tasks, often pay attention to additional radiators. The connection is made through the standard cooling system and stove.

Disconnect the motor mount

turn the fan over and open the cover;
press out the spring brackets that secure the electric motor and remove it;
unscrew the nut and remove the impeller, as well as the rubber pads;
We install the new electric motor in the reverse order.

After completing all the work, you need to add Antifreeze a little above the maximum level, start the engine, check all connections for leaks, the Antifreeze level should drop slightly due to the displacement of air from the heating system. Warm up the engine and turn on the interior heating. Check the flow of warm air through all air ducts. Approximate prices for repairing the heating and ventilation system in a car service center:

replacement of the heater tap - 500 rubles;
heater radiator replacement - from 800 rubles;
replacement of a heating fan electric motor - from 500 rubles;
Replacing a heating tap cable - 300 RUR.

To replace the heater on a VAZ 2106 at a car service center, you will have to pay approximately 2,500 rubles plus the cost of the replaced parts or components.

Device elements

The stove on the VAZ-2106 includes the following main components:

deflectors;
stove tap rods;
air intake covers;
windshield air ducts;
radiator;
radiator casing;
outlet pipes;
underwater;
stove tap;
air distributor cover;
electric fan motor;
fan impeller;
additional resistors;
air ducts of the internal ventilation system;
distributor cap lever;
brackets;
lid control handle;
crane control handle;
draft of the air supply cover.

These elements represent a heater device on a VAZ-2106 car.

Design and operating principle

The cabin heater on the VAZ-2106 car is a compact unit, the main components of which include:

stove motor;
fan with impeller;
radiator;
damper for air flow distribution;
stove faucet with control levers.

IMPORTANT! If leaks were found in the radiator circuit of the VAZ-2106 stove, then, if possible, replace the radiator with a new one. Its repair is complex, plus it does not always bring positive results.

This is more of a temporary measure.

The design of the stove on the VAZ-2106 car is quite simple, but for beginners, coping with the tasks of repairing it may be an impossible task. This is wrong. Especially if you are familiar with the device and design features of the heater.

The standard, that is, factory heater for the VAZ-2106, has a relatively compact size, but effectively cools the liquid and warms up the interior. This is noted by many owners of domestic classics. Switching on and control is intuitive.
The VAZ-2106 uses the most common heating system design among the Russian automobile industry, and in some places even the Soviet one. The basis is the liquid cooling system of the main engine.
The main elements of the heating system are the stove, connections to control elements (faucets, levers), lines and a radiator.
The heater dampers and valve are connected to the control device using an elastic and flexible rod.
When the upper element is moved to the upper limit position, the valve opens completely, which ensures the maximum amount of coolant entering the heating system through the radiator.
If the lower control device is moved to a similar position, then the air intake damper will be open to the limit. This way, maximum air flow will be directed through the stove into the heating system.
Deflectors made of plastic can change the airflow angle in the VAZ-2106 cabin. Thus, the driver and front passenger regulate the direction of the air flows created during heating or normal ventilation.
The air distribution cover is not connected to the heater control system switch. This damper allows you to adjust the degree of closing or opening using a lever device. This design provides additional comfort to the driver of the VAZ-2106 when regulating the operation of the heating system.
The device includes a three-position toggle switch designed to regulate the volume of air flow passing through the stove. The regulator allows you to choose between two ranges of rotation of the heater fan - from minimum to maximum.

IMPORTANT! Never turn on the electric heater fan if the air intake damper is in the retracted position and the valve is open

Features of connecting the stove

The VAZ-2106 uses the Me 255 electric motor. This is a direct current electric motor that is excited by a permanent magnet. Several nuances of the VAZ-2106 heater connection diagram:

When an additional resistor is connected to the electric motor supply circuit, the armature shaft begins to rotate, but at a lower frequency.
The resistor is secured with a pair of spring washers inside the heater fan casing.
At a temperature of 20 degrees, the resistor resistance is 1.5 ohms.
If the electric motor fails, it should be replaced;
Repair consists only of cleaning the commutator or applying lubricant to the bearings.
Normally, the nominal voltage parameters in the circuit are 1 V.
Rated power indicators - 2 W.
The rotational speed of the electric motor shaft is 3000 rpm (under 12 V voltage conditions).

The heating equipment is relatively simple in its design and design, which is why most VAZ-2106 car owners prefer to carry out repairs themselves.

Modification of the carburetor and ignition system

In addition, it is impossible to imagine tuning a VAZ 2106 without modifying the carburetor. An increased engine volume with a reduced compression chamber will simply force you to increase the flow areas of the nozzles and the performance of the accelerator pump. The ignition system should not be ignored either.

If you decide to leave the stock one, check the stiffness of the springs in the ignition timing mechanism using a strobe light and, if necessary, adjust it to the factory values. Of course, it is best to install an electronic system. It will allow you to more accurately set the ignition timing and provide a powerful spark that will allow the engine to operate even in severe frost.

If you do at least half of the activities described above, you will see that modifying the VAZ 2106 engine with your own hands allows you to significantly increase its power.

The stove has lost efficiency - reasons

If the failure of one of the elements of the heating system is not difficult to diagnose, then it is often not easy to deal with cases of loss of efficiency on your own.

So, when the stove produces too little heat at maximum, then it is possible to suspect the following problems:

blockage of the main or furnace radiator;
wear of the air intake damper seal;
cooling system malfunction.

We recommend starting your search for the problem with the heater radiator. For this:

start the engine;
warm it up to operating parameters;
set the oven regulator to maximum;
feel the radiator, as well as the pipes connected to the tap.

If the latter are both hot, then the heat exchanger is most likely clogged and will have to be cleaned or replaced. When the hoses are cold, there is a problem with the cooling system. Heating of only the pipe leading to the tap indicates that the latter is jammed or the traction cable is broken.

An abnormally high radiator temperature coupled with low heater efficiency indicates airflow problems. This is where the damper gasket most often fails.