Engine device ZMZ 406

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42

The ZMZ 406 engine is a kind of transitional link between the old ZMZ 402 carburetor engine and its improved injection version of the 405 model.

It's strange that this installation is marked with a higher 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 take a look at how this 406 motor is different.

Short description

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

Device

Based on Figure 2, we see that the ZMZ 406 engine consists of:

1. Sump.
2. Oil sump.
3. Oil pump.
4. Roll drivepump.
5. Crankshaft.
6. Crank.
7. Oil pump driven gear.
8. Covers of the same device.
9. Oil pump drive gear.
10. Pistons.
11. Cylinder block gaskets.
12. Exhaust valve.
13. Intake pipe with reservoir.
14. cylinder head.
15. Intake camshaft.
16. Hydraulic pusher.
17. Exhaust camshaft.
18. Cylinder head covers.
19. Oil gauge.
20. Exhaust manifold.
21. Exhaust valve.
22. Cylinder block.
23. 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 the participation of German fellow motorists definitely had a positive effect on the reliability of this unit, because compared to the 402nd motor, its service life was almost doubled.

RepairThe ZMZ 406 engine 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, do not forget that 16 valves provide excellent dynamics to the car and last much longer than on the 402.

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.