VAZ 2104 is an old-fashioned car. It can be repaired, including with your own hands. Some things are done even in a private garage, without serious experience. This is not like today's foreign cars, the repair of which consists of replacing units: the transmission is broken - we change the transmission, the starter is broken - we change the starter, the car is broken - we change... Not to that extent, of course, but close to it.
Repairing a VAZ 2104 is a “club” event. Members of the informal club “VAZ 2104 Repair” can do anything. In private garages, they disassemble the engine, grind the valves, upgrade the carburetor and increase the engine power to 200 horsepower. Not everyone can do this, but even inexperienced car enthusiasts can do simple repairs on a VAZ 2104 with their own hands.
VAZ 2104, 2105. Repair, operation and maintenance manual
Auto repair manual for VAZ 2104 - 2105 in electronic form. The manual will always be at hand during car maintenance and repair; to do this, just download it for free to your tablet or phone in djvu format.
Before using the car manual, check the year of manufacture and engine of the car.
Russian language
Format: djvu
Size: 12.9 Mb
DIY chassis repair
Regarding the repair of the chassis, there is one operation that is mandatory for every car enthusiast. This is a replacement for a flat tire. It is not for nothing that the set of tools supplied with the cars includes a jack and a wheel wrench. Many people get punctured wheels. Be prepared for repairs.
Modern tubeless tires can travel several tens of kilometers with small punctures. If you have an electric pump in your car, you can drive to the nearest tire repair shop. But you shouldn’t count on this and drive a VAZ 2104 without a spare wheel. Punctures can be large and the tire will need to be replaced immediately. A spare tire, a tire, a jack and the corresponding repair skills are mandatory accessories for driving a VAZ 2104.
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Every car trip begins with an external inspection. You just see a flat tire and put on a spare. When driving, a sure sign of a broken tire is that the car is driving, the car is being pulled away from the direction of travel. If such a slip occurs, you must immediately pull over to the side of the road and stop the car in a safe place. Install a warning triangle.
To change a wheel, the car must be securely locked in place. Put the switched off engine into gear, pull the parking brake lever all the way, and place a brake shoe or an improvised object, such as a stone or brick, under the fixed wheel. Install the jack in the socket closest to the wheel to be repaired.
The order of further actions is as follows.
- Remove the decorative cap.
- Raise the car slightly, but not until the damaged wheel lifts off the road surface.
- Using a wheel wrench, unscrew the four nuts securing the wheel to the hub.
- Raise the car with a jack until the wheel lifts off the road surface.
- Remove the damaged wheel and install a spare one in its place.
- Place the nuts in their original places and tighten by hand until they contact the surface of the wheel rim. Lower the car until the wheel touches the road surface.
- Use a wheel wrench to tighten the nuts completely.
- Lower the car. Install the decorative cap. Remove the jack and the damaged wheel.
- Upon completion of the repair of the VAZ 2104, remove the warning triangle.
Go to a tire repair shop as soon as possible after replacing it. Repair the flat tire and continue driving with a working spare tire.
VAZ 2104, 2105. Repair, operation and maintenance manual
Repair book for VAZ 2104 - 2105
Operation of any VAZ 2104 - 2105 car is impossible without knowledge of its structure, maintenance and repair features. It doesn’t matter who will carry out the necessary work - every driver is simply obliged to know the basic maintenance and troubleshooting procedures.
The VAZ 2104 - 2105 repair book contains all the necessary information that will help the owner understand the structure of the car, teach how to properly care for the car, timely maintenance and proper repairs.
Main components
But everything is in order. The electrical circuit of the VAZ-2104 (carburetor) is single-wire, that is, all electrical devices are connected to each other by only one wire - “positive”. The role of the negative one is played by the car body and metal components (power plant, transmission).
All devices included in electrical equipment can be divided into several components:
Operating equipment includes the battery, starter, generator, elements of the ignition system, as well as devices that control these parts.
At the same time, the battery can be attributed to almost all components, since it provides power to all the car’s devices until the engine is started.
But its main task is to provide power to the starter - the power electric motor with which the engine is started, as well as the ignition system. After the engine is started, the functions of the battery are taken over by the generator, that is, it generates energy that powers all devices. Its task is also to restore the charge expended by the battery when starting the engine. Moreover, in the case of heavy load (many electrical appliances are turned on), when the generator can no longer fully power the equipment involved, the battery begins to feed the network so that the excessive load does not damage the generator.
The ignition system creates a spark charge in the engine cylinders, as a result of which the air-fuel mixture ignites. It includes an ignition coil, a distributor (distributor), spark plugs, and high-voltage wires.
The main control element of the working equipment is the ignition switch, through which electricity is directed to the necessary working devices (ignition system, starter).
Light and sound alarms provide illumination of the roadway in the dark (high and low beam headlights), inform other road users about maneuvers performed by the driver (turning, overtaking, braking, reversing), as well as information about the dimensions of the car (side lights). This also includes the horn and interior lamps. All lighting devices are powered from the battery (while the engine is not running) and the generator (while the engine is running).
DIY generator repair
A common type of repair of VAZ 2104 units is the elimination of breakdowns associated with the car’s generator. Malfunctions are divided into three groups.
- Incorrect belt tension adjustment.
- Belt failure.
- Damage to the generator itself.
The belt in the VAZ 2104 engine passes through 3 pulleys: the generator itself, the crankshaft and the coolant supply pump shaft. The correct degree of belt tension can be checked by measuring the free deflection of the belt between the crankshaft and water pump pulleys. The deflection is measured with the engine not running, in the middle of the belt span between the pulleys. The standard value is 10–12 mm. If the deflection is higher than normal, repairs are necessary: the belt is tightened.
You can do this kind of work yourself. To do this, loosen the nut securing the generator to the adjusting bar. Move it away from the engine crankcase until the belt tension is restored to normal.
To repair the generator yourself you will need:
- portable multimeter;
- three-jaw puller;
- a soft metal drift for pressing out the front and rear bearings;
- mandrel for pressing bearings;
- set of keys and screwdrivers.
During the repair, you will probably have to grind off the pierced ends of the bolts securing the front bearing cover with a grinder. You will need a fully equipped locksmith workshop. There are craftsmen who can rewind a burnt-out stator winding, but this is an activity for fans of VAZ 2104 repair. You will spend more money on the wire than on purchasing a used generator from disassembly. And you don’t need a new one: your car is “old,” well-worn. It's unlikely to survive the new generator.
Replacing a broken unit yourself is the maximum you can claim without professional experience and special equipment for repairs.
VAZ 2104,2105 with engines 1.5, 1.5i, 1.6i design, maintenance, diagnostics, repair (PDF, 57Mb) This book on repairing VAZ of the classic family with full-color illustrations. The disassembly and repair process is provided with detailed photographs and comments. The book is intended for car enthusiasts who service Lada cars on their own.
Repair manual for VAZ-2104,2105 and modifications (PDF, 31Mb) Maintenance and repair manual for Zhiguli cars of the fourth and fifth models. Repairs based on ready-made spare parts are considered, possible malfunctions and methods for eliminating them are given. The manual describes the following car models: - VAZ-2105 sedan with a 1.3-liter engine - VAZ-21051 sedan with a 1.1-liter engine - VAZ-21053 sedan with a 1.5-liter engine - utility station wagon based on the VAZ-2104 based on the 2105 - station wagon VAZ-21043 with a 1.5 liter engine
Cars "Zhiguli" VAZ-2104, -2105, -2107 Design and repair (DJVU, 7Mb) Description of "Zhiguli" fourth, fifth and seventh models, in an amount sufficient for their proper repair. Possible malfunctions, wear limits and tolerances are given. 3rd edition, first edition was released in 1989. Authors V.A. Vershigora, A.P. Ignatov, K.V. Novokshonov, K.B. Pyatkov, ed. Transport, 1996.
Repair and maintenance manual for cars of the VAZ-2104, 2105 family (DJVU, 48Mb) Another VAZ repair book. Designed for service station specialists and individual owners.
Repair manual and parts catalog for VAZ 2104, 2105. Official publication of Avtovaz JSC, Moscow 2001 (DJVU, 14Mb) The most complete manual for repairing VAZ 2104, VAZ-2105 cars and their modifications based on materials from the Avtovaz manufacturer on design issues, maintenance and repair. It can serve as a guide in training service station specialists. This book is VAZ.
Differences in the repair of carburetor and injection versions
From a repair point of view, the carburetor and injection versions of the VAZ 2104 engine differ in that:
- a carburetor engine is easier to repair in the field, but it breaks down more often;
- The VAZ 2104 injection engine fails less often, but it is more difficult to repair without the appropriate infrastructure.
The carburetor engine of the VAZ 2104 has a device that has been familiar to consumers of domestic automotive products since pre-war times. The air-fuel mixture is prepared in the carburetor, enters the engine cylinder, ignites from the spark plug and pushes the piston. If the VAZ 2104 engine stalls while driving, if the idle speed fluctuates, if the engine reacts sluggishly to pressing the accelerator pedal, there is only one recipe. I pulled the suction towards myself and off to repairs. Gasoline consumption will increase, but you will get to the nearest auto repair shop in a VAZ 2104 with a carburetor engine.
When an engine with multiport injection needs to be repaired, things are not so simple. The operating modes of the injection engine are controlled by the electronic control unit (ECU). To understand what exactly the fault is that requires repair, you need computer diagnostics, reading error codes from the computer. This is not the case on the road. Get the cable, ask for a trailer or call a tow truck.
Both versions of the VAZ 2104 engine have pros and cons. The trend in the global automobile industry is the transition from carburetor to injection engines. Our time is the time of the injector. So, compared to a carburetor engine, an injection engine has more advantages than disadvantages. And it's not just a matter of repairs.
Injection engines are more economical, reliable and environmentally friendly.
Will the repair and operating manual help when disassembling a car?
The VAZ 2104 repair and operation manual is an indispensable source of information about your car. Where else can you find out how much oil is poured into the VAZ 2104 engine and with what frequency and what oil is suitable for your “four”. The manual says how much luggage is loaded into the trunk of a VAZ 2104, what fuel consumption is used when driving in the city and on the highway, how much anti-freeze is poured into the windshield washer reservoir, and to what pressure the tires are inflated. This information is given in the section on operating the VAZ 2104. And the more accurately you follow the recommendations from this section, the less often you will have to refer to the repair section.
The VAZ 2104 wiring diagram contains a lot of information. The manual contains an electrical diagram indicating the color of the wires that lead to electricity consumers and the current ratings for which the fuses are designed. This information is indispensable when troubleshooting problems related to electrical repairs of a VAZ 2104 car.
It is important that the repair and operation manual that you purchased along with the car contains information specifically about your modification and configuration option of the VAZ 2104. Information obtained on the Internet often refers to a version of the VAZ 2104 that is different from yours and may not be suitable for you personally. If you rely on information obtained from the Internet, you are responsible for the result. If you find a typo in the official repair manual, you can submit a claim to the manufacturer of the VAZ 2104, and he will respond.
The official manual is important when disassembling and even more important when assembling the VAZ 2104.
