The UMZ 417 engine was developed based on the 402 series internal combustion engine of another engine manufacturer - ZMZ. It was created for specific UAZ vehicles - buses, SUVs and trucks. Initially it was flawed, but this point was partially corrected in several modifications of the series - 4175.10, 4178.10, 4178.10-01, 4178.10-03, 4178.10-10, 4178.10-52, 4179.10-10, 4179.10-05 and 4179.10-25.
ICE UMZ 417
It has a very low cost, simple design, high reliability and performance characteristics acceptable for heavy trucks, SUVs and minibuses, therefore it is still produced to serve the gigantic fleet of UAZ 3151 and modifications of the UAZ 3741.
Technical characteristics of UMZ 417 2.45 l/92 l. With.
The designers used partially the developments of the ZMZ 402 in the 417 engine, supplementing them with new solutions. The in-line arrangement of 4 cylinders and the lower camshaft of the gas distribution mechanism, the aluminum block in resin impregnation and the extremely inconvenient crankshaft rear oil seal assembly remained the same.
ZMZ 402 served as a model for the UMZ 417 engine
Mechanical tuning of the next versions of the 417 engine family from the manufacturer UMZ made it possible to increase power to 98 hp. With. (4175.10 and 4178.10-52), adapt to diaphragm and lever clutches.
The lower table contains the technical characteristics of the UMZ 417 power drive:
| Manufacturer | UMP |
| Engine brand | 417 |
| Years of production | 1989 – … |
| Volume | 2445 cm3 (2.45 l) |
| Power | 67.67 kW (92 hp) |
| Torque moment | 172 Nm (at 2200 rpm) |
| Weight | 166 kg |
| Compression ratio | 7 |
| Nutrition | carburetor |
| Motor type | in-line petrol |
| Ignition | distributor |
| Number of cylinders | 4 |
| Location of the first cylinder | TVE |
| Number of valves on each cylinder | 2 |
| Cylinder head material | aluminum alloy |
| Intake manifold | duralumin |
| An exhaust manifold | cast iron |
| Camshaft | original cam profile |
| Cylinder block material | Aluminium alloy |
| Cylinder diameter | 92 mm |
| Pistons | original |
| Crankshaft | cast iron |
| Piston stroke | 92 mm |
| Fuel | A-76 |
| Environmental standards | Euro-0/1 |
| Fuel consumption | highway – 8.4 l/100 km combined cycle 10.6 l/100 km city – 14.5 l/100 km |
| Oil consumption | maximum 0.6 l/1000 km |
| What kind of oil to pour into the engine by viscosity | 5W30, 5W40, 0W30, 0W40 |
| Which engine oil is best by manufacturer | Liqui Moly, LukOil, Rosneft |
| Oil for UMZ 417 composition | synthetic in winter, semi-synthetic in summer, mineral |
| Engine oil volume | 6 l |
| Operating temperature | 90° |
| ICE resource | declared 150,000 km actual 250,000 km |
| Adjustment of valves | adjusting screws |
| Cooling system | forced, antifreeze |
| Coolant volume | 10.7 l |
| water pump | with plastic impeller |
| Spark plugs for UMZ 417 | BCPR6ES from NGK or domestic AU17DVRM |
| Spark plug gap | 0.8 mm |
| Timing drive | gear wheel |
| Cylinder operating order | 1-3-4-2 |
| Air filter | Nitto, Knecht, Fram, WIX, Hengst |
| Oil filter | with check valve |
| Flywheel | universal for ADS oil seal, lever and petal clutch |
| Flywheel mounting bolts | M12x1.25 mm, length 26 mm |
| Valve stem seals | manufacturer Goetze, inlet light, exhaust dark |
| Compression | from 13 bar, difference in adjacent cylinders maximum 1 bar |
| XX speed | 750 – 800 min-1 |
| Tightening force of threaded connections | spark plug – 31 – 39 Nm flywheel – 80 – 90 Nm clutch bolt – 19 – 30 Nm bearing cap – 70 Nm (main) and 60 Nm (connecting rod) cylinder head – three stages 40 Nm, 120 Nm + 90° |
In turn, the design of the 417 motor became the basic solution for the following versions of the UMZ 420 (did not go into production) and UMZ 421.
UAZ Patriot engines
During assembly, the following engines were installed:
- atmospheric gasoline unit ZMZ 409 with a cylinder displacement of 2.69 liters and a UAZ Patriot engine power of 128 horsepower;
- ZMZ 514 diesel engine with turbocharger;
- diesel Iveco F1A.
No other engines were used when assembling cars at the plant. However, some car owners, after purchase, tried to change the originally installed engine themselves.
The engines are designed to use a 5-speed manual transmission of the original design or Hyundai Dymos, depending on the year of manufacture of the car. In 2022, the manufacturer announced the possibility of the company starting production of cars with automatic transmission.
Design Features
In principle, the UMZ 417 engine is copied from the ZMZ 402 engine, but differences still exist:
- seating of the sleeves in the block with rubber rings instead of copper gaskets;
- the flywheel is larger in diameter;
- no fins at the beginning of release, then 4 stiffening ribs appeared;
- removable oil filter instead of a glass one;
- the cooling system diagram is reversed - both supply and intake of coolant from the cylinder head;
- weak fiber pump seal instead of the seal from the VAZ engine;
- The diameter of the valve plates has been reduced.
Flywheel UMZ 417
Cooling system
And the most important reason for the decrease in power of the UMZ 417 in comparison with the ZMZ 402 is the combined, non-bifurcated exhaust manifold.
An exhaust manifold
Design features are:
- in-line engine layout and its longitudinal location relative to the vehicle’s trajectory;
- combustion chamber is small in size, dome configuration;
- improved cleaning of lubricant (full-flow circuit with replaceable filter);
- high service life from 150,000 km;
- short piston stroke and overhead valve arrangement.
Timing diagram UMZ 417
To carry out major repairs, you do not need to visit a service station; all operations can be carried out on your own in the garage. For this purpose, the user manual contains both a description of the parameters and step-by-step photos.
Even in the absence of hydraulic lifters, the manufacturer recommends pouring high-quality oil and antifreeze to cool the engine with a very modest finning of the cylinder block.
The manufacturer also provides the possibility of modernizing the intake/exhaust tract, cylinder head and ShPG.
Too much fuel consumption during a trip
In the case of synchronous breakdowns, which are associated with a decrease in engine power, an increase in fuel consumption and uneven engine operation, the most important thing to pay attention to is the correct operation of gas circulation. The distributor is extremely sensitive to clearances on the UMP engine . The owner must remember at what mileage he changed the warm valve clearances. If it's been long enough, he should think about replacing the parts as soon as possible. Replacing the gaps on the UMZ engine is carried out according to the manufacturer’s instructions and is repeated every 9 thousand kilometers. If the owner does not regularly change parts, the engine may begin to consume more fuel. In particularly severe situations, the engine fails.
List of internal combustion engine modifications
For various tasks, several modifications of UMP motors come out of the factory:
- 417.10 - considered the basic version, compression ratio 7, runs on A-76 gasoline, meets Euro-1 standards, characteristics 172 Nm and 92 hp. With.;
- 4175.10 - adapted for GAZ Gazelle clutch, compression ratio 8.2, therefore AI-92 fuel is used, complies with Euro-3, characteristics 182.5 Nm and 98 hp. With.;
- 4178.10-03 – installation of engines only on the old UAZ model range, compression ratio 7, Euro-1, characteristics 171 Nm and 92 hp. s., power steering;
- 4178.10-01 - only for the old UAZ model range, compression ratio 7, Euro-1, performance 171 Nm and 92 hp. pp., 254 mm lever clutch;
- 4178.10-52 - exclusively for early UAZ models, compression ratio 8.2, Euro-1, performance 180 Nm and 98 hp. pp., 240 mm diaphragm clutch;
- 4178.10-10 - after the release of the UMZ 421 version, the cylinder head from this engine is used, in which the valve diameter is increased to 39 mm, the pump is shifted to the block, and instead of a packing it has a normal oil seal;
- 4179.10 - recommended for special vehicles of the Ministry of Defense, Euro-1, compression ratio 7.0, characteristics 171.6 Nm and 92 hp. pp., starting heater, diaphragm or lever clutch.
UMZ 4175.10
UMZ 4179.10
The last two versions use additional and improved attachments, and the latest model for military UAZs uses an original factory-boosted cylinder head.
Engine UMZ 4218
UMZ 4218 is a 4-cylinder carburetor gasoline engine that has an increased service life of connecting rod and main bearings due to hardening of the crankshaft journals. This hardening method uses high frequency currents. There are several modifications of the unit. These engines are intended for all-terrain UAZ with a gross weight of 3.5 tons, and light-duty trucks with a load capacity of up to 1.5 tons. The gas exhaust system of this engine is untuned, which simplifies installation on a UAZ even with a wagon-type body. The UMZ 4218 engine was modernized, which made it more powerful than the UMZ 4178. Improvements affected the cylinder, which received a diameter of 100 mm instead of 92 mm, and the displacement increased from 2.445 liters to 2.89 liters. Design changes were made for a number of other points. The service life of the cylinder block has doubled since it was made from aluminum alloy, filled with cast iron liners and equipped with a 14 mm top plate. Elastic rubber-cork gaskets also increased the tightness of the engine. The power units UMZ-4218.10 and UMZ-421.10 are similar to each other, differing only in the shape of the exhaust manifold. Modernizing a car with UMZ-4218.10 comes down to installing another manifold and replacing the exhaust pipes of the muffler.
Advantages and disadvantages
The disadvantages include the attachments - the complex design of a two-chamber carburetor and the low resource of the pump impeller made of polymer material. Due to the use of an asbestos cylinder head gasket, antifreeze often penetrates into the cylinders. Due to strong vibrations, the cylinder head nuts and covers spontaneously unscrew and oil leaks occur.
That is why the manual contains maintenance operations for periodically tightening the nuts and adjusting the valve clearance with your own hands.
cylinder head UMZ 417
On the other hand, the advantages of the design of the ICE 417 and all its modifications are:
- reliable, albeit obsolete, gas distribution system;
- high reliability and service life;
- reduction of owner costs when using low octane gasoline;
- independent overhaul and mechanical boost.
Unfortunately, tuning can add power within 30 hp. With. without installing a turbine.
Engines for UAZ Patriot 2016 release
By 2016, the installation of the ZMZ 40905 internal combustion engine on cars stopped and only ZMZ 40906 engines were installed, the operation of which was carried out on types of gasoline with an octane rating higher than 92. Fuel consumption for such engines was 11.5-14.6 liters per 100 km and depended depending on operating conditions.
ZMZ 409051 Pro 150 hp
From mid-2022, cars began to be equipped with the ZMZ 409051 Pro power plant with a capacity of 150 hp, which replaced its predecessor.
Diesel engines were no longer installed on cars by 2016.
List of car models in which it was installed
The UMZ 417 engine was designed specifically for the Ulyanovsk Automobile Plant, therefore it was used in UAZ cars:
- 3151 – SUV;
- 3303 – all-wheel drive truck;
- 3741 – all-metal 4x4 van;
- 2206 – 8 – 11 seat minibus;
- 3962 – ambulance and resuscitation vehicle;
- 3909 – Carriage type farmer;
- 39094 – Farmer truck;
- DISA-1912 Zaslon - an armored vehicle for collectors.
UAZ 39094 Farmer
The motor was created a little later than the renaming of UAZ 469 to 3151, and UAZ 452 to 3741, so it is only available in the modernized “Bobiki” and “Tabletki” - “Loaves”. The characteristics of the engine made it possible to use it as a power drive for all UAZ models produced at that time.
Ulyanovsk Motor Plant
The Ulyanovsk Motor Plant (UMZ) is part of the Light Commercial and Passenger Vehicles division of the largest Russian automobile manufacturing holding GAZ Group.
The most popular commercial vehicles and SUVs in Russia - GAZelles and UAZs - are equipped with engines from the Ulyanovsk Motor Plant - the famous UMZ.
The history of the Ulyanovsk Motor Plant began back in 1944, but the first UMZ brand engine was produced by the company only in 1969 (before that the plant produced a variety of small engines and engine parts) - it was UMZ-451. Since then, UMZ brand engines have faithfully served in the famous UAZ off-road vehicles and light trucks.
The production of automobile engines in Ulyanovsk began with the production of GAZ-21A and ZMZ-451 engines with a displacement of 2.5 liters from the Zavolzhsky Motor Plant. By the beginning of the 90s, these engines had undergone several stages of modernization and had practically exhausted their capabilities to improve energy, fuel and economic characteristics.
At the same time, the increase in consumer qualities of serial UAZ vehicles as a result of their modernization, development and development of new models based on the UAZ-3160, UAZ-3165 led to the need to create engines with increased torque and increased maximum power.
In this regard, Volzhskie Motors JSC developed and began serial production in 1996 the engine model 421.10 with a displacement of 2.9 liters, which made it possible to increase the torque and power of the newly developed engines to 22.5 kgf*m and 110- 112 l. With.
The new engine is completely interchangeable with engines with a displacement of 2.5 liters and can be installed on previous production vehicles without any modifications.
Since 1998, Volzhskie Motors JSC has been supplying model 4215.10 engines with a displacement of 2.9 liters to power a number of modifications of light-duty trucks of the GAZelle family.
To meet the increased requirements for reducing the toxicity of engines, Volzhskie Motors JSC in 1999-2000. started producing engines model 4213.10 with a displacement of 2.9 liters, gasoline injection and microprocessor control of fuel supply and ignition, which are installed on vehicles of the UAZ-3160 family.
Maintenance regulations for UMP 417
Due to design flaws and obsolescence, the UMZ 417 engine has to be serviced between major overhauls and consumables must be replaced within the following periods:
- oil and oil filter - 7.5 - 10 thousand mileage;
- valve clearance adjustment - 15 thousand km;
- air filter - after about 2 years;
- exhaust manifold - 2 years;
- fuel filter - 30 thousand mileage;
- spark plugs and battery - 60 thousand km;
- crankcase ventilation – 3 years;
- coolant - 40 thousand mileage.
Repair of UMZ 417
Since the camshaft is located at the bottom, the timing drive is carried out by a gear wheel. Such an internal combustion engine device is more reliable in comparison with belt and chain drives, but is already obsolete at the time of development.
Fuel compartment
Signs of fuel system failure:
- The engine will not start;
- engine start delay;
- the engine knocks and slows down;
- the engine does not develop speed;
- the engine consumes a huge amount of fuel;
- continuous knocking, vibrations;
- stopping work when speed increases.
One of the constant breakdowns of the fuel system is poor operation of the fuel pump or a complete disruption of its functionality. You can ask specialists to analyze the parts at the service center.
A rapid drop in voltage to zero after the gas station is turned off can be caused by various reasons:
- failure of the fuel pressure regulator inserted under the front part of the fuel pump module;
- failure of the check valve on the engine fuel pump;
- there is a rupture in the fuel line cylinder.
Gas station breakdowns often occur due to a lack of supply voltage supplied by the gearbox. The gearbox is located in the engine compartment, in the rear of the engine compartment (under the windshield).
Review of faults and methods for repairing them
The morally outdated UMZ 417 engine does not bend the valve, but causes several other troubles:
| Water in cylinders | cylinder head gasket torn | gasket replacement |
| Oil leak | cylinder head tightening loose | tightening the nuts periodically |
| Oil loss, increased pressure in the crankcase | loss of tightness of the rear crankshaft seal | replacing the packing of a cord impregnated with graphite lubricant |
The rear crankshaft oil seal is generally a weak point, so after the 421 engine comes out, a rubber oil seal is used in this unit, rather than an impregnated rope cord. This modernization increases the service life, since replacement is carried out much less frequently.
Rear crankshaft oil seal
Engine tuning options
Since the UMZ 417 carburetor engine has a heavy piston system, tuning is carried out according to the following scheme:
- boring of exhaust seats up to 39 mm and use of valves from 412 internal combustion engines;
- installation of a 51 mm exhaust pipe;
- Replacing the stock camshaft with a city camshaft to increase torque at low speeds.
Camshaft with narrow phases for tuning UMZ 417
An important feature of this power drive is that it is limited to 100 hp. With. potential, so even if you replace the carburetor with an injector, tuning will not bring the expected increase in power. Experts recommend a swap for the UMZ 417, that is, replacing the entire internal combustion engine.
Thus, the UMZ 417 motor was copied from the 402 power drive of the Zavolzhsky Motor Plant with minor changes. Even with existing shortcomings, the internal combustion engine serves regularly in UAZ all-wheel drive buses, trucks and SUVs, that is, in very difficult operating conditions.
If you have any questions, leave them in the comments below the article. We or our visitors will be happy to answer them
Acceleration of the car is accompanied by jerking or knocking
Sudden or instantaneous shocks that occur during acceleration are often caused by broken parts. If the driver does nothing, the breakdown could develop into something more serious. This problem can be solved by replacing old, worn parts with new ones.
Jerking on a car with a UAZ 417 engine can also occur when the synchronization sensors fail, and the dashboard malfunction warning lamp may not light up. In this situation, it is easier to replace the timing sensors.
Jerking often occurs due to a broken coil. You can also replace the part yourself. If that doesn't work, invite an expert.
