Modifications: ZMZ 4061.10 / 4062.10 / 4063.10 Gasoline, 4-cylinder, in-line, injection engine ZMZ-406 and its modifications have been mass-produced in the industrial production of ZMZ OJSC since 1996. Including basic parts for it (cylinder block, cylinder head).

This is a modern, high-speed engine, widely used in domestic cars. Powerful, provides high overclocking and high-speed characteristics. It has a cast-iron cylinder block, a 4-valve gas distribution system per cylinder, a diaphragm clutch. The engine requires professional maintenance due to the complex fuel supply system and electronic control system. Designed for installation on passenger cars of the middle class.

Characteristics of the ZMZ-406 engine

Production	ZMZ
Engine brand	ZMZ-406
Release years	1997-2008
Block material	cast iron
Supply system	injector/carburetor
Type	in-line
Number of cylinders	4
Valves per cylinder	4
Piston stroke, mm	86
Cylinder diameter, mm	92
Compression ratio	9.3 8*
Engine volume, cc	2286
Engine power, hp / rpm	100/4500* 110/4500** 145/5200
Torque, Nm/rpm	177/3500* 186/3500** 201/4000
Fuel	92 76*
Environmental regulations	Euro 3
Engine weight, kg	185* 185** 187
Fuel consumption, l/100 km - city - track - mixed.	13.5 - -
Oil consumption, g/1000 km	up to 100
Engine oil	5W-30 5W-40 10W-30 10W-40 15W-40 20W-40
How much oil is in the engine	6
When replacing pour, l	5.4
Oil change is carried out, km	7000
Operating temperature of the engine, hail.	~90
Engine resource, thousand km - according to the plant - on practice	150 200+
tuning - potential - no loss of resource	600+ up to 200
The engine was installed	GAZ 3102 GAZ 31029 GAZ 3110 GAZ 31105 GAZ Gazelle GAZ Sobol

* - for ZMZ 4061.10 engine ** - for ZMZ 4063.10 engine

Faults and repairs

The ZMZ-406 engine is the successor to the classic ZMZ-402, a completely new engine (albeit made with an eye on the Saab B-234), in a new cast-iron block, with an overhead camshaft, the latter are now two and, accordingly, a 16 valve engine. Hydraulic compensators appeared on the 406 and fuss with constant valve adjustment does not threaten you. The timing drive uses a chain that needs to be replaced every 100,000 km, in fact, it runs more than 200 thousand, and sometimes it doesn’t reach 100, so once every 50 thousand km you need to monitor the condition of the chain, dampers and hydraulic tensioners, tensioners, usually very poor quality. Despite the fact that the engine is simple, without variable valve timing and other modern technologies, for GAZ, this is a big progress in relation to the 402 engine. 1. Timing chain tensioners. It tends to jam, as a result of which the absence of vibrations is not ensured, chain noise occurs, followed by the destruction of the shoe, the chain jumping, and perhaps even its destruction. In this case, ZMZ-406 has an advantage, it does not bend the valve. 2. Overheating ZMZ-406. A common problem, usually the thermostat and a clogged radiator are to blame, check the amount of coolant, if everything is in order, then look for air pockets in the cooling system. 3. High oil consumption. Usually it's the oil scraper rings and valve seals. The second reason is a labyrinth oil deflector with rubber tubes for oil drainage, if there is a gap between the valve cover and the labyrinth plate, then oil leaves here. The cover is removed, smeared with sealant and there are no problems. 4. Traction dips, uneven XX, these are all dying ignition coils. On ZMZ-406 this is not uncommon, change and the motor will fly. 5. Knock in the engine. Usually in the 406th hydraulic lifters knock and ask for a replacement, they go about 50,000 km. If they are not, then there are a lot of options, from piston pins to pistons, connecting rod bearings, etc., an autopsy will show. 6. Engine troit. Look at spark plugs, coils, measure compression. 7. ZMZ 406 stalls. The point, most often, is in the BB wires, the crankshaft sensor or the IAC, check. In addition, sensors are constantly buggy, low-quality electronics, there are problems with the gasoline pump, and in general, the poor build quality characteristic of Russian engines has not bypassed the 406 engine. Despite this, the ZMZ 406 is a giant step forward, compared to the ZMZ-402, the design of the mid-50s, the engine has become more modern, the resource has not gone away, and as before, with adequate maintenance, timely oil changes and a calm driving style, it can exceed 300 thousand km. In 2000, on the basis of the ZMZ-406, the ZMZ-405 engine was developed, and later a 2.7 liter ZMZ-409 appeared, a separate article about it.

Modifications

1. ZMZ 4061.10 - carburetor engine, SZh 8 for the 76th gasoline. Used on Gazelle. 2. ZMZ 4062.10 - injection engine. The main modification is used on the Volga and Gazelle. 3. ZMZ 4063.10 - carburetor engine, SZh 9.3 for 92nd gasoline. Used on Gazelle.

Tuning ZMZ-406

The first option for increasing engine power, according to tradition, is atmospheric, which means we will install shafts. Let's start with the intake, put in a cold air intake, a larger receiver, cut the cylinder head, modify the combustion chambers, increase the diameter of the channels, grind, put the appropriate, lightweight T-shaped, valves, springs 21083 (for evil options from BMW), shafts (for example, OKB Engine 38/38). It makes no sense to turn a regular, tractor piston, so we buy forged pistons, light connecting rods, a lightweight crankshaft, and balance it. Exhaust on a 63 mm pipe, straight-through and all this is set up online. The output power is approximately up to 200 hp, and the character of the motor will receive a pronounced sporty shade.

ZMZ-406 Turbo

If 200 hp. If you're looking for childish fun and want real fire, then supercharging is the way to go. In order for the motor to normally endure high pressure, we will put a reinforced forged piston group under low CV ~ 8, otherwise the configuration is similar to the atmospheric version. Turbine Garrett 28, manifold for it, piping, intercooler, injectors 630cc, exhaust 76mm, DBP + DTV, setting in January. At the output, we have about 300-350 hp. You can change the nozzles to more efficient ones (from 800cc), install Garrett 35 and blow until the engine falls apart, so you can blow out 400 or more hp. As for the compressor, everything is similar to turbocharging, but instead of a turbine, manifolds, pipes, intercooler, we put a compressor (for example, Eaton M90), tune in and go. The power of the compressor options is lower, but the motor is trouble-free and pulls from the bottom.

READ ALSO ON THE SITE Were you amazed by the Leman Mazda 787B with a four-section Wankel engine? Forget it. Before you is a unit with twelve sections. Inventor Tyson Garvin dreams of changing the world of racing. For starters - racing on the water. Its rotary motor with 12 sections, r... I am sure that many of our readers are aware of the existence of a company called. Koenigsegg. But we are also sure that you have heard almost nothing about its subsidiary called FreeValve. If this is really... In 2007, after a short break, the well-known Nissan GTR was revived and the new 3.8 liter VR38DETT was used as an engine in it, instead of the previous inline six RB26DETT. This motor was based on the successful VQ37VHR, but the c...

ZMZ 402 and its improved injection version model 405.

It is strange that this installation is marked with a greater value than its successor. An inexperienced car enthusiast will think that the ZMZ 406 was developed much later than the 405th and is more productive. Well, let's look at how this 406 motor differs.

a brief description of

This engine belongs to a range of 4-cylinder carburetor gasoline units. ZMZ 406 has an in-line arrangement of cylinders. Quantity in the cylinder head - 2. The order of operation of the cylinders: 1-2-4-2. The engine displacement is 2.3 liters, power - 130 horsepower.

Device

Based on Figure No. 2, we see that the ZMZ 406 engine consists of:

1. Oil pan.
2. Oil pan.
3. Oil pump.
4. Pump drive roller.
5. crankshaft.
6. Connecting rod.
7. Oil pump driven gear.
8. covers of the same device.
9. Oil pump drive gear.
10. Pistons.
11. Gaskets
12. Exhaust valve.
13. Inlet pipeline with receiver.
14. Inlet camshaft.
15. Hydraulic pusher.
16. Exhaust camshaft.
17. Cylinder head covers.
18. Oil level indicator.
19. exhaust manifold.
20. Exhaust valve.
21. block of cylinders.
22. Drain plugs.

Note: the numbering of parts of the ZMZ 406 engine matches the designation of the devices in Figure No. 2.

As for the development, this unit was designed jointly with the German company Mercedes, due to which the engineers managed to increase the service interval to 15 thousand and significantly increase the service life of the main engine parts. As practice shows, ZMZ 406 can serve up to 300-400 thousand kilometers without any boring blocks and replacing cylinder-piston groups. However, this value largely depends on the state of the circuit. If it fails, the entire motor will fail. Hence the disagreement: for some, the engine can serve even 400 thousand without problems, while for others it breaks after a hundred. But unequivocally, the participation of German fellow motorists had a positive effect on the reliability of this unit, because compared to the 402nd motor, its service life was almost doubled.

ZMZ 406 is a very serious thing, because the process of boring parts is also complicated by 16 valves. Therefore, due to the complicated design, the price for the overhaul of this motor is from 1 to 2 thousand dollars. However, at the same time, one should not forget that 16 valves provide excellent dynamics to the car and last much longer than on the 402nd.

In conclusion, I would like to say one thing: the Zavolzhsky 406th engine has really passed the stage of evolution and has become an example for many Russian automakers to follow. Its surprisingly long service life and excellent power characteristics brought the Gorky and Zavolzhsky plants one step closer to the present. And even in comparison with the American Cummins, which is equipped on a par with ZMZ all GAZelles and Volga, it does not lose its popularity, and the demand for it is growing.

GAZ-24 is a Soviet middle-class car produced by the Gorky Automobile Plant from 1968 to 1986, this car was perhaps the most ...
Read completely …

Engine ZMZ-406

Engine ZMZ-406

In recent decades, the -406 engine manufactured by the Zavolzhsky Motor Plant has been installed as a power plant on the main products of the automobile giant GAZ. The design of this power unit has been worked out for several years. The foundation was laid at the end of the last century, it was then that the main concept of ZMZ 406 was formulated. Today it is a promising energy-saturated unit capable of developing power up to 150 hp. With. (110 kW).

During the first decade of the ZMZ 406 release, the carburetor engine was responsible for preparing the working mixture. Now an injection modification of this motor is being produced.
The use of an injector facilitated starting, improved throttle response and reduced fuel consumption. What is the reason here?
It is known from the theory of internal combustion engines that an increase in the performance of a carburetor depends on the speed of the crankshaft. The increase in the consumption of the combustible mixture occurs as this indicator increases. A sharp press on the accelerator pedal causes the relative content of gasoline vapors to increase in the ZMZ 406 carburetor. The excess air ratio is slightly reduced, which leads to an increase in torque and an increase in the crankshaft speed.

The ZMZ 406 engine injector works a little differently. The microprocessor helps here, which clearly responds to the position of the control pedal. If it is necessary to increase the speed and lightly press the pedal, more fuel is injected into the cylinder. The time interval between the load and its correction in any injection engine is reduced by several times. This increases the throttle response, improves the dynamics of the Gazelle or the Volga (depending on which car the ZMZ 406 injector is installed on).

ZMZ-406 engine specifications

Manufacturer	ZMZ
Release years	1997-2008
brand	406
Type	petrol
Supply system	injector / carburettor
Control block	MICAS
Configuration	4-cylinder in-line longitudinal internal combustion engine
Ignition	switching
Max Power	100 HP 73.55 kW (90 hp) at 4500 rpm
Working volume	2.286 cm 3 (2.3 l.)
Max Torque	177/201 Nm, at 4200 rpm
Cylinder diameter	92 mm.
piston stroke	86 mm
Compression ratio	9,3
cylinders	4
The order of operation of the cylinders	1-3-4-2
Location of the first cylinder	TVE
valves	16
Cylinder head material	Aluminium alloy
Intake manifold	duralumin
An exhaust manifold	cast iron
camshaft	2 pcs. DOCH
Crankshaft	lightweight
Oil consumption	max 0.3 l. per 1000 km.
Viscosity type of oil	5W30, 5W40, 10W30, 10W40
Recommended manufacturer	Liqui Moly, LukOil, Rosneft
recommended for the season	Synthetic in winter, semi-synthetic in summer
Engine oil volume	6.1 l.
Oil operating temperature	90o
Oil consumption per 1000 km.	up to 100 g
Environmental standards	Euro-3/Euro-0
Engine parts ZMZ-406
Adjustment of valves	gyro pushers
Cooling system	forced, antifreeze
water pump	with plastic impeller
Spark plug	A14DVR or A14DVR
spark plug gap	1.1 mm.
Valve train chain	70/90 with shoe or 72/92 with sprockets
Air filter	Nitto, Knecht, Fram, WIX, Hengst
Oil filter	with check valve
Flywheel	7 holes with 40mm offset. inner diameter
Flywheel mounting bolts	M12x1.25, length 26 mm.
Goetze valve stem seals	light-inlet, dark-outlet
idle speed	750-800 min -1
Tension forces of threaded connections
Candles	31-38 Nm
Flywheel	72-80 Nm
clutch bolt	19-30 Nm
bearing cap	98-108 Nm indigenous
bearing cap	67-74 Nm connecting rod
cylinder head	three stages 40 Nm, 127 - 142 Nm + 90 o
Coolant volume	10 l.
Cooling system	forced, antifreeze
ICE resource	150000-200000 km.
Unit weight	192 kg.

The ZMZ-406 engine and its modifications have been mass-produced in the industrial production of ZMZ OJSC since 1996, and are intended for installation on GAZ passenger cars, such as GAZ-31105, GAZ-3102 and "". The engine requires professional maintenance due to the complex fuel supply system and electronic control system.

Characteristics of the engine ZMZ-406 2.3 16V Volga, Gazelle, Sable

Parameter	Meaning
Configuration	L
Number of cylinders	4
Volume, l	2,280
Cylinder diameter, mm	92
Piston stroke, mm	86
Compression ratio	9,3
Number of valves per cylinder	4 (2-inlet; 2-outlet)
Gas distribution mechanism	DOHC
The order of operation of the cylinders	1-3-4-2
Rated engine power / at engine speed	106.6 kW - (145 hp) / 5200 rpm
Maximum torque / at revs	200.9 Nm / 4500 rpm
Supply system	distributed injection with microprocessor control
Recommended minimum octane number of gasoline	92
Environmental regulations	Euro 0
Weight, kg	192

Design

Four-stroke engine with electronic fuel injection and ignition control, in-line arrangement of cylinders and pistons rotating one common crankshaft, with two overhead camshafts. The engine has a closed-type liquid cooling system with forced circulation. Combined lubrication system: under pressure and spray.

Cylinder block

The ZMZ-406 cylinder block is cast from gray cast iron. On the upper plane of the cylinder block of the ZMZ-406 engine there are ten M14x1.5 threaded holes for mounting the cylinder head. In the lower part of the ZMZ-406 block there are five crankshaft main bearing supports.

When repairing cylinders, two repair sizes are provided: 1st and 2nd. Pistons and piston rings are produced with the same repair dimensions.

Crankshaft

The crankshaft is cast from high-strength cast iron VCh60 (more durable in relation to VCh50), has a full support structure and eight counterweights (two counterweights for each crank for better unloading from centrifugal forces and bending moments).

Piston

Parameter	Meaning
Diameter, mm	92,0
Compression height, mm	38,0
The volume of the internal recess, ss	2,66
Weight, g	431

Pistons according to the outer diameter of the skirt and cylinders according to the inner diameter are sorted into two size groups (1st and 2nd). Piston pin of floating type, pin outer diameter 22 mm, length 64 mm. The whole finger is 121g.

The GAZ car brand is known all over the world. In recent decades, the 406 engine manufactured by the Zavolzhsky Motor Plant has been installed as a power plant on the main products of this automobile giant. The design of this power unit has been worked out for several years. The foundation was laid at the end of the last century, it was then that the main concept of the ZMZ 406 was formulated. Today it is a promising energy-saturated unit capable of developing power up to 150 hp. With. (110 kW).

Technical characteristics of the ZMZ-406 engine

PARAMETER	MEANING
Configuration type	in-line
Volume, cu. m	2.28
Cylinder diameter, mm	92
Number of cylinders	4
Valves per cylinder	4
Piston stroke, mm	86
Block material	cast iron
Degree of compression, atmospheres	9.3
Cylinder head material	aluminum
Fuel system	injector or carburetor
Control block	Mikas
Fuel type	Petrol
Lubrication system	combined, with automatic temperature control
Power, hp / rpm	145/5200
Torque, Nm/rpm	200,9 /4500
Fuel	92
Environmental regulations	Euro 3
Fuel consumption per 100 km, l
- city	13.5
- track	-
- mixed	-
Oil consumption per 1000 km, gr	up to 100
Weight, kg	192

A four-cylinder engine with an in-line arrangement of cylinders, made according to the classical scheme, characteristic of the power plants of the Zavolzhsky Motor Plant, this is how you can start characterizing the 406 engine. The working volume is 2.28 liters.

The combustion chamber is distinguished by the central location of the spark plug. Timing ZMZ 406 is made quite original, which made it possible to compactly arrange the main elements of the power system.

The crankshaft speed at maximum power is 5200 rpm, and the maximum torque is observed at much lower speeds, which are 4000 rpm. in min. The engine maintains the minimum speed in the region of 750-800 rpm 406 at idle.

Design features of the 406 engine manufactured by ZMZ

The motor from the Saab-900 sports car was taken as a prototype for the project. The first ZMZ-406 gasoline engines appeared in the early eighties of the last century.

ZMZ-406 has some features:

1. The block is cast iron. It is, of course, heavier than aluminum, but the use of this metal makes it possible to abandon replaceable liners (cylinders). In this regard, the rigidity of the structure has increased.
2. In the upper part, two timing belts ZMZ 406 are installed (gas distribution shafts of the intake-exhaust system). Each of the shafts is responsible either for the intake of a fresh charge of the working mixture, or for the exhaust gases.
3. There are four valves in the head for each cylinder. That is, sixteen valves are installed on the entire four-cylinder. Such an amount increases the efficiency of cylinder scavenging during exhaust gas release and increases the filling ratio of the cylinders with fresh working mixture.
4. A special innovation was used for the first time on this particular power unit - a hydraulic chain tensioner. He made it possible to maintain optimal tension in the timing drive ZMZ 406. This technical solution was then repeated in dozens of other designs. But the ZMZ 406 timing was the first in the domestic engine industry, where this was applied.
5. For this engine, options were thought out to reduce the piston stroke, which is only 86 mm, while the cylinder diameter is 92 mm. This approach made it possible to increase the compression ratio to 9.3. This is a very high value. But in theory it is argued that with an increase in the degree of compression, the efficiency of the power plant also increases. The short stroke movement of the piston contributes to better filling.
6. ZMZ 406 is solved according to the traditional scheme. The coolant is moved by the ZMZ 406 pump through the block, block head and radiator.
7. There is also a feature - a flat V-ribbed belt is used, which excludes the possibility of an unexpected break.
8. The ZMZ 406 thermostat allows you to organize circulation in a small circle during the engine warm-up period, and when the warm-up temperature is reached, the thermostat opens, letting the coolant flow in a large circle.
9. The ZMZ 406 crankshaft pulley transmits torque to the ZMZ 406 pump shaft, which supplies coolant to the car’s stove, maintaining an optimal microclimate in the cab during the cold season.
10. The coolant temperature sensor helps the driver to constantly monitor the temperature.
11. The 406 engine is not without a lubrication system. With a gear pump, engine oil moves from the oil pan, is supplied under pressure for cleaning, where impurities larger than 40 microns are removed in the ZMZ 406 oil filter. Purified oil is forcibly supplied to the channels of the ZMZ 406 crankshaft, moving inside the main and connecting rod journals, providing stable lubrication in these units, which are experiencing enormous alternating loads. Part of the oil under pressure moves further, lubricating the piston pin. Then the oil gets on the surface of the piston. The piston interacts with the mirror of the cylinder of the ZMZ 406 engine through an oil film formed in the contact zone.

Difference between injection and carburetor fuel system

During the first decade of the ZMZ 406 release, the carburetor engine was responsible for preparing the working mixture. Now an injection modification of this motor is being produced.

The use of an injector facilitated starting, improved throttle response and reduced fuel consumption. What is the reason here?

It is known from the theory of internal combustion engines that an increase in the performance of a carburetor depends on the speed of the crankshaft. The increase in the consumption of the combustible mixture occurs as this indicator increases. A sharp press on the accelerator pedal causes the relative content of gasoline vapors to increase in the ZMZ 406 carburetor. The excess air ratio is slightly reduced, which leads to an increase in torque and an increase in the crankshaft speed.

The ZMZ 406 engine injector works a little differently. The microprocessor helps here, which clearly responds to the position of the control pedal. If it is necessary to increase the speed and lightly press the pedal, more fuel is injected into the cylinder. The time interval between the load and its correction in any injection engine is reduced by several times. This increases the throttle response, improves the dynamics of the Gazelle or the Volga (depending on which car the ZMZ 406 injector is installed on).

The main reason for the high efficiency of the injection system compared to the carburetor is the absence of jets that regularly clog.

This led to the need for periodic purging, and often mechanical cleaning of small diameter holes. Of course, if the injection system fails on the road, then not every driver will be able to fix it on their own.

Engine tuning

Tuning ZMZ 406 is a way to change the output. Many drivers are looking for ways to improve the performance of their cars.

Someone is not satisfied with the available power, others are embarrassed by the voracity of the motor, others simply want to excel by choosing one or another option that they want to optimize.

The first thing that powerplant specialists do is increase power:

1. You can simply bore the cylinder and use larger diameter pistons. But this path is fraught with a decrease in the strength of the block.
2. More often they go the other way - they force by increasing the air supply due to mechanically driven turbines or using a turbocharger.

The first way is simpler, but it should be noted that it is required to create a mechanism with a high gear ratio - the turbine speed is at the level of 10-15 thousand revolutions per minute. Such a drive, boosting the motor, creating tuning ZMZ 406, is difficult to perform. More often they go the way of using a turbocharger.

The turbocharger uses the energy of the exhaust gas to operate. ZMZ 406 turbo on the exhaust part, a gas inlet to the turbocharging system is installed. There is also a compressor on the same shaft with the turbine, which pumps a clean charge of air into the cylinders of the ZMZ 406 engine. The filling is growing. The cyclic fuel supply increases proportionally, which leads to an increase in the amount of the working mixture in the cylinder, and, accordingly, the gas pressure also increases, which leads to an increase in torque. Further, the power increases.

In the theory of internal combustion engines, it is stated that an increase in power during turbocharging is accompanied by a decrease in specific fuel consumption. ZMZ 406 tuning in this way allows you to improve not only the dynamics of the car, but also improve its efficiency.

In the eighties of the last century, another direction of boost was worked out - this is dynamic boost, the essence of which was to select the parameters of the intake system so that the frequency of the air flow pulsations at the intake corresponded to the resonant frequency of the system itself.

Mathematical models were proposed to calculate the optimal diameters and lengths of the intake system. A number of specialists also installed mechanical resonators, which, through special membranes, transmitted impulses from the exhaust system to the intake system. This way allows not to change the engine 406 radically, but at the same time to achieve an increase in power and a decrease in specific fuel consumption.

The ZMZ 406 engine can be modified even easier. It is enough to grind the inlet and outlet channels in the power system. This optimization, when combined with the GAZelle 406 engine, makes it possible to achieve improved dynamics. The combination of ZMZ 406 on UAZ with polished channels will pleasantly surprise the user, the car will pleasantly resemble an energy-saturated passenger car.

Popular mistakes of motorists

The pursuit of increased power for some motorists comes down only to altering the ZMZ 406 engine. But not all alterations are good. And some are harmful, this is the opposite of tuning or anti-tuning:

1. There are rumors on the Internet that you can increase engine power by reducing the mass of the flywheel. At the same time, the authors rest on the fact that the flywheel takes power and increases the weight of the engine. In fact, the flywheel stores the energy that this engine receives in the “power stroke” cycle to complete the remaining cycles in a four-stroke engine. With an increase in the number of cylinders, the relative mass of the flywheel decreases, but this is due to a change in the number of strokes per revolution of the crankshaft, since more pistons are involved in the work. Ideally, if you bring the number of working cylinders to infinity, then the flywheel will not be needed at all.
2. There are experts who recommend installing air swirlers in the intake system. But such specialists do not understand that when the air flow moves, a turbulent flow regime is observed. Turbulence, by definition, is movement with a vortex flow, which Bernoulli proved more than 150 years ago. Excessive interference will only reduce the amount of air charge and reduce power, which will also affect the efficiency of the engine.
3. Recently, ideas have also appeared to heat the air at the inlet - they say, the 406 engine will add injector power. But this is not true. The charge density of air decreases with heating and constant pressure. Consequently, its total amount also decreases. And this leads to the fact that the pressure drops during the combustion of the mixture, the power drops instead of increasing.
4. There are also authors who have been saying for more than forty years that the injector should be supplied with droplets of water into the inlet tract of the ZMZ 406. But remember that designers are looking for ways to separate fuel and water so that the combustion process goes more intensively. Water, getting inside the cylinder at high temperature, will begin to cause intense corrosion. When fuel is burned, the exhaust gas contains carbon monoxide and water vapor. Those who have been operating motors for a long time know that the ZMZ 406 engine does not need to use ways that impair its reliability.
5. A group of "specialists" also appeared who recommend optimizing the engine by replacing the chain tensioner. They advocate the installation of an electric tensioner, while the scheme of a vicious device should be redeemed from them for a lot of money. It's already absurd - to pay to ruin the power plant.

Therefore, listening to the advice of various experts, it should be remembered that designers do not understand their business much better than ordinary people. It is not in vain that they refuse many ideas that will ruin the engine.

What cars use the ZMZ-406 engine

The modern engine of the Zavolzhsky Motor Plant of the 406th model is installed on GAZ-3110 Volga passenger cars and trucks 3302.

The motor and automobile plants of the Nizhny Novgorod region constantly monitor their products, collect information on the operation of the manufactured equipment.

Of course, sometimes there are certain conflict situations.

They are related to the fact that drivers apply for:

• troit Gazelle engine;
• timing marks are not visible;
• nozzles fail;
• the pump fails;
• ZMZ piston;
• oil filter leaking
• the thermostat is unstable;
• the main technical characteristics and others are not maintained.

Manufacturers always try to provide assistance through their service centers, which are scattered throughout Russia and the CIS.