24.04.2017
The cargo model 3303 from the Ulyanovsk Automobile Plant is one of a series of all-wheel drive cargo-passenger cars, which also includes a van, a minibus, a medical car and a wagon-type model (Farmer).
Popularly nicknamed "Loaf", the model has been traveling around the Russian expanses for more than half a century, and under its hood it has evolved GAZ-21 engines. Some modifications of power units are now being installed on the UAZ Hunter and Patriot.
Engine UMP 417 / 4175 / 4178 2.45 l
The next step in improving the GAZ-21 engine was the UMZ 417 engine with a compression ratio increased to 7, a modified camshaft, new 47 mm intake valves, with old exhaust valves. Also, UMZ 417 received a two-chamber carburetor and a new air filter. Later, these engines began to use a crankshaft without packing.
If we compare UMP 417 with ZMZ 402, then their differences will be cosmetic: there are no stiffeners on the 417s, the sleeves are more softly planted, and the flywheel is larger, while the principle of operation of the cooling system is reversed.
A different intake manifold and smaller exhaust valves are reflected in the engine power.
Engine malfunctions are completely similar to the minuses of ZMZ 402, that is, there are extraneous noises and knocks, the need to adjust valves every 10 thousand kilometers, overheating, and so on.
Vibrations and jerks occur due to the curve of the structure, as a result of which the fuel is supplied unevenly.
Experts consider the UMZ 417 engine obsolete, like other units from the GAZ-21 family, and they have no place under the hood of modern cars. 1
Engine UMZ 421 / 4213 / 4215 / 4216 / 4218 2.9 l
The UMZ 421 power unit has become the most modern modification of the GAZ-21 engine and a logical development of the UMZ-217 model, but with a large volume, exhaust valves increased to 39 mm. In the newest versions of UMP 421, an injection fuel supply system is already installed.
The UMZ 421 engine differs from the ZMZ 402 in thin dry liners, which increased the strength of the block, cylinders 100 mm in diameter, and fingers shifted 7 mm in the pistons. Instead of anachronistic packing, a rubber cuff and other small parts are used.
At the same time, on a global scale, the engine has not changed and, in fact, it is the same unit of the mid-50s, but in an improved form.
Due to the lack of hydraulic lifters, the gaps will have to be adjusted every 10 thousand kilometers.
The disadvantages of UMP 421 include a curved design, which affects the occurrence of twitches, vibrations and other things.
Knocking in the engine occurs due to unadjusted valves, connecting rod bearings or camshaft.
Overheating of the motor occurs due to a defect in the thermostat, pump or air lock in the cooling system.
The advantages of UMP 421 include high-torque, availability of spare parts and complete maintainability. If you take care of the engine and do not overload it, then the resource will be at least 200 thousand kilometers.
Engine ZMZ 409.10 / 4091.10 / 4092.10 / 4094.10 2.7
The basis for the ZMZ-409 large-volume engine was the ZMZ-405, which used a crankshaft with a stroke increased to 94 mm, the same connecting rods, modified pistons shifted by 4 mm. Otherwise, it's still the same 405 with the same height of the cylinder block, thinner inter-cylinder jumpers, and slots for cooling. Torque has increased due to increased productivity by 7 “horses”, and the latest engine modifications comply with Euro-3 eco-standards.
Jamming of the timing chain hydraulic tensioner is considered a malfunction, but the valves do not bend.
The thermostat or a clogged radiator is to blame for the engine overheating.
Traction failure is the “handiwork” of ignition coils, which must be replaced otherwise the engine will break.
Knocks occur due to the hydraulic compensator, which needs to be replaced.
Engine tripping is affected by spark plugs, connecting rod bearings and compression.
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Engine |
Engine ZMZ 409 |
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Production |
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Engine brand |
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Release years |
1989-now |
1993-now |
2001-now |
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Block material |
aluminum |
aluminum |
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Supply system |
carburetor |
carburetor/injector |
injector |
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Number of cylinders |
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Valves per cylinder |
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Piston stroke, mm |
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Cylinder diameter, mm |
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Compression ratio |
8.2 |
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Engine volume, cc |
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Engine power, hp / rpm |
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Torque, Nm/rpm |
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Environmental regulations |
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Engine weight, kg |
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Fuel consumption, l/100 km |
14.5 |
- |
- |
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Oil consumption, g/1000 km |
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Engine oil |
5W-30 |
5W-30 |
5W-30 |
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How much oil is in the engine |
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When replacing pour, l |
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Oil change is carried out, km |
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Operating temperature of the engine, hail. |
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Engine resource, thousand km |
N.d. |
250 |
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The engine was installed |
UAZ 469 Bobik UAZ Loaf |
Report a bug Select it and press Ctrl + Enter Fully electric van ID. Buzz is predicted by 2022. In the meantime, we are talking about intermediate models of vans from Volkswagen.
First of all, we are talking about the T6 truck. It will be followed by the Volkswagen T7 van by 2021. It will be radically different from its predecessor. This applies not only to the appearance, but also to the technical characteristics.
The German concern says that driving performance, handling and, most importantly, load capacity will be improved. In addition, all European environmental standards will be observed. On the market, the Volkswagen T7 will be represented by traditional gasoline and diesel engines. There will also be a hybrid variant. It can be considered a transitional stage to electrical ID. buzz. It is also worth noting that the VW T7 will have autopilot elements. This is important for the quality of car handling. The T7 should be just as good for transporting people as it is for heavy cargo work. Even car enthusiasts with a low level of experience can notice the large amount of masking film on the front of the car.
The purpose of its imposition is to hide the features of the upgraded hood, improved laser headlights, the design of which includes graphics for daytime running lights on LEDs. The grille appears to be slightly larger than the previous version, and the front bumper has also undergone a modification process that includes new versions of the air intakes and an updated lower grille.
The same is true of the rear. The changes made are not too significant, but the presence of camouflage indicates some changes in the appearance of the rear lights. In fact, the camouflage cover extends to virtually the entire rear bumper, which could mean a complete redesign of the diffuser and overall layout. The appearance of the exhaust pipes has not changed in comparison with the current configuration of the M5.
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For cars of both cars and trucks, they have a long service life. 417 UAZ engine is also considered a durable unit. When it was created, the designers created the necessary conditions for one or even several major repairs. Due to its excellent power performance and other technical and operational characteristics, the 417 carburetor engine is widely popular among automakers and car owners.
Specifications engine UAZ 417
The modern UMZ-417 engine is produced to replace the UMZ-414. The differences between them are very few, they are as follows:
- UMP 417 has an increased compression ratio: 7 instead of the usual 6.7.
- Camshaft of a different design.
- Intake valves with a diameter of 47 mm are used instead of 44 and 36 mm.
- Exhaust valves are 39mm instead of 36mm.
- The carburetor consists of two chambers.
- An air filter of a different modification is used.
Engine UMP 417 specifications:
| Engine brand name | UMZ-417 |
| cylinder head material | Aluminium alloy |
| Power system type | carburetonic |
| Cylinder arrangement | row |
| Number of cylinders | 4 |
| Number of valves per cylinder | 2 |
| Compression ratio | 7 – 8,2 |
| Cylinder diameter | 92 mm |
| Stroke length | 92 mm |
| Engine capacity | 2445 cm3 |
| Engine power | 92 horsepower |
| Type of fuel | Gasoline A-76 |
| Motor weight | 166 kg |
| Environmental Compliance | Euro 1 |
| Engine oil consumption | Up to 100 g / 1000 km |
| Gasoline consumption | In the city - 14.5 On the highway - 8.4 In mixed mode - 10.6 liters per 1000 kilometers |
| Engine oil by viscosity | 5W-30; 4010W-30; 4015W-30; 4020W-30; 40 |
| The volume of engine oil in the engine | 5.8 l |
| For replacement | 5 l |
| Engine oil change interval | 10,000 km |
| Motor operating temperature | +90°С |
| Operating life of the engine | 150,000 km |
| Scheme of inclusion in the work of cylinders | 1-3-4-2 |
List of major modifications of the 417 engine
| UMP 417.10 | base model | The compression ratio is 7, it runs on A-76 gasoline, the power output is 92 hp. s., Euro-1, installed on cars UAZ-3303, on new projects, UAZ Hunter and UAZ Patriot. |
| UMP 4175.10 | Analogue of the base model | S.s. - 8.2; gasoline A-92; power is 98 horses; designed for Gazelle cars. |
| UMP 4178.10 | « | A new manifold is installed here, suitable for a two-barrel carburetor. Designed for cars UAZ 3303, UAZ Hunter, UAZ Patriot and other cars of this brand. |
| UMP 4178.10-10 | Analog UMP 4178.10 | The cylinder head, borrowed from the UMZ-421, where the exhaust valves have a diameter of 39 mm. Instead of the usual stuffing, an oil seal is inserted here. The HPFP pump is located on the block body. The power unit is designed for UAZ cars. |
Advantages and disadvantages of the UMZ 417 engine
The production of this unit began in 1989 and to this day it continues to be manufactured at the Ulyanovsk Motor Plant. Due to the use of aluminum alloys for the manufacture of body parts, the UMZ 417 engine has a relatively low weight. It has the following advantages:
- increased efficiency;
- reliability;
- good endurance;
- enough power, etc.
All of these factors are quite suitable for unpretentious domestic SUVs.
However, along with multiple advantages, the 417th engine also has certain disadvantages:
- The occurrence of overheating of the motor during operation.
- Unfamiliar knocks.
- Vibrations.
- Increased wear of working units and parts.
Most often, elements such as:
- bearings;
- camshaft cams;
- springs;
- sealing parts, seals, gaskets;
- pucks, etc.
Tip: In order to avoid breakdowns leading to costly overhauls, it is recommended to periodically check the condition of the working components and systems of the internal combustion engine.
What is the difference between UAZ 417 and ZMZ 402 engines
It often happens that craftsmen replace a failed UAZ 417 engine with a ZMZ 402. This becomes possible due to the high unification of these engines.
It is known that the engines 417 and 402 are very similar to each other, but there are also some differences:
- When installing cylinder liners in the body of block 417, rubber rings are used, while ZMZ 402 has copper gaskets here, which provide better fixation.
- The ZMZ flywheel has a smaller diameter.
- The body of the ZMZ-402 block is equipped with stiffeners. The UMP 417 block has fins only on the details of the models of the latest releases. Here the number of ribs ranges from 3 to 4 pieces.
- The ZMZ engine uses oil filters made in the form of a glass. The UMP has a filter borrowed from the VAZ 2101. The second solution is more convenient for replacing the entire device.
- Engines have a different supply of coolant to remove heat from the working cylinders.
- The ZMZ motor uses valves with a large diameter of the plates. Compared to the UAZ 417 engine, there is a better supply of air-fuel mixtures to the combustion chamber.
- The exhaust system of the ZMZ 402 engines is equipped with two exhaust manifolds, separate from each other, serving the cylinders: 1-4, 2-3. Thanks to this solution, the power unit develops a power of 100 liters. With. when working on gasoline A-93, and 90 liters. With. - on AI-80, respectively.
What causes rapid wear of the UAZ 417 engine
Among the main factors in the first place is the use of engine oil of inadequate quality or non-compliance with the terms of service maintenance of the internal combustion engine. The next problem is the untimely appeal for qualified help in the event of minor flaws in the operation of the power unit. It is known that at the slightest knock and even after its termination, the defect does not disappear.
Repair of the UAZ 417 engine is divided into types:
- Urgent Care.
- Partial renovation.
- Capital repairs.
In the first case, the defects that have appeared in the operation of the motor are eliminated. This is enough to temporarily extend its viability. Such assistance is provided to the motor if a breakdown occurs on the way, so that the car can be delivered to the nearest service center for subsequent diagnosis and troubleshooting.
With partial repairs, the motor is checked on special stands. After that, selective dismantling of worn-out components and parts is carried out in order to replace them with new spare parts.
Important: Overhaul is one of the most time-consuming procedures. For its implementation, highly qualified auto mechanics are involved, familiar with the features of the device and the characteristics of the UMZ 417 engine.
Stages of overhaul of the 417th engine
Operations for the overhaul of the power unit are carried out in a certain sequence:
- diagnostics of the machine in order to identify a defect;
- removal of the engine from the car;
- washing and cleaning of parts, assemblies;
- breakdown analysis;
- replacement of parts that have irreversible breakdowns with new spare parts;
- reinstalling the engine.
Diagnostics is one of the most responsible labor-intensive process. The more accurately the diagnosis is made, the faster and better the engine will be repaired. Upon completion of the repair of the 417 UAZ carburetor engine, mandatory adjustments are made to the following components:
- Ignition interrupter. At the same time, its position is regulated and a certain angle is set.
- The number of revolutions of the crankshaft in idle mode.
- Emission toxicity level.
Maintenance of UAZ 417 engines
The list of maintenance work for an internal combustion engine includes the following items:
- Checking the level and condition of engine oil.
- Lubricant replacement.
- filter elements.
- spark plugs.
- Timing belt timing gear.
- Timing guide rollers.
According to experienced specialists, the replacement of engine oil should be carried out in accordance with the requirements set forth in the service book of the vehicle. It says that the oil in the engine changes after the next car run of 10,000 kilometers, this will require 5.8 liters of working material. This document also indicates the brands of recommended lubricating fluids:
- M-8B SAE 15W-20;
- M-6z/12G SAE 20W-30;
- M-5z/10g1;
- M-4z/6B1 SAE 15W-30.
The UAZ 417 engine has a standard oil filter called NAMI VG-8-R-1. Along with changing the engine oil, it is recommended to change the filter elements. The oil filter is not to be cleaned, but replaced with a new similar or imported sample. Candles on the UAZ 417 engine are also subject to replacement.
Important: Before changing engine oil, check its level and general condition. This is necessary to determine how worn out the metal surfaces of the working parts of an internal combustion engine are. At the same time, the feasibility of overhauling the power unit is also determined.
Possibilities of tuning the UAZ 417 engine
Many car owners want to improve their own car in terms of design, as well as improve power performance. Most often, tuning is done in order to change the technical characteristics of the motor.
Among the most appropriate measures, the first place is occupied by the option of replacing the existing power unit with an imported analogue. For the modernization of UAZ vehicles, the 2L-T model engine from Toyota is best suited.
Important: Before changing engine oil, check its level and general condition. This is necessary to determine how worn out the metal surfaces of the working parts of an internal combustion engine are. At the same time, the feasibility of overhauling the power unit is also determined.
This article is based on information obtained from various sources. We hope it will help our readers take the first step towards replacing the engine in their domestic SUV with diesel from Nissan.
Replacement of the UAZ engine (Niva, Gazelle) with a foreign diesel engine (TD27, TD27T, QD32, QD32T)
Sooner or later, many uazovods come to the conclusion that you need replace UAZ engine(in this article we will also talk about fields and Gazelle commercial vehicles) to something more reliable, powerful and economical.
And all searches in this direction inevitably lead to the choice of an engine like TD27 or QD32 and their turbocharged versions.
In fact, the 32nd differs from the 27th only in cylinder capacity and power. Any other differences are not significant. Although, when installing work with QD32 a little more than with TD27. It is recommended to install these motors with Checkpoint Nissan Atlas. You can also combine it with your own gearbox (Dymos), but experts say that this gearbox will not be enough for a long time.
What benefits can you expect with? Why are they changing a domestic engine to a foreign internal combustion engine, and even a diesel one?
Firstly, It must be said about the significant reliability of diesel engines. All the engines proposed in this article are today leaders among their own kind, in terms of actual mileage without major repairs. For example, none of the experienced drivers will be surprised by the engine Nissan TD27 with a mileage of 500 thousand km. or more. You just need to monitor the operation of the engine and change the oil in time, and that's it!
Secondly, the whole complex of costs for the operation of a diesel car, and especially a commercial one, is cheaper. It is a fact that most foreign commercial vehicles today are diesel powered. Both Europeans and economical Asians, Americans know how to count their money, and why are we worse? That's why installation of diesel engines on domestic cars(UAZ, Gazelle, Sobol) is a very profitable investment. Diesel engines Nissan TD27, TD27T, QD32, recommended for installation on domestic cars, have a cast-iron cylinder head, it does not warp from temperature. They do not have cracks between the valve seats. High-pressure fuel pump drive, camshaft - gear, timing belt in these internal combustion engines are absent - there are no problems associated with breaks and costly repairs. Initially, these engines were developed as engines for boats (marine engines are more reliable than car engines).
Third, it is worth emphasizing the excellent traction of diesel engines at low revs. Every Gazelle driver knows that with any serious hill, a loaded car tries its best. WITH diesel engine on the Gazelle you don't even have to change gear. And in winter, the car will not slip, the diesel engine will smoothly pull your car out of any snowdrift. Today, probably, no one needs to explain at all what advantages diesel for UAZ, Niva, Gazelle and other domestic "working" cars. The first is a low gear, the front axle, the gas pedal is slightly pressed down, and the car leaves almost any inaccessible place.
Fourth, these engines are unbiased to fuel quality. The injection pump for these engines is mechanical. The amount of fuel is controlled by the driver, not electronics. This, of course, does not give a reason to fill it with whatever comes to hand, however, it gives confidence that on diesel fuel of any gas station, the engine will run without problems for its owner. Relatively low fuel consumption and the absence of breakdowns make them indispensable.
Fifth, reliable and simple diesel engine is completely independent of the car's electrical circuit. If there is a malfunction associated with the electrical circuit of the car, all that is needed is to start the engine from the tow. There are no coils, no distributor. The fuel in the engine ignites without a spark.
At sixth, spare parts for these motors are not very expensive. For example, a plunger pair for this motor can be taken for 4.5 thousand rubles.
Seventh, diesel is not afraid of water in the presence of a snorkel. For SUVs traveling on serious off-road, fords, this is very important.
Eighth, when installing this diesel engine, we immediately get a power steering pump, a compressor, a normal generator.
The imported diesel engine allows you to not only drive cars confidently and reliably, but also save money. Engine installation in practice pays off already after 60-70 thousand kilometers. Taking into account the fact that diesel fuel can be bought cheaper both at retail and wholesale, the payback time is reduced.
In total, all of the above steps of the algorithm for replacing the engine with a Japanese diesel engine can be within 5,000 rubles and from 10 to 30 days, depending on the promptness, the time it takes to go through the authorities and pay for services. It remains only to pass the technical inspection and go.
The engine for the UAZ-469 and other Ulyanovsk cars, starting from the end of the 60s, was a modernized version of the ZMZ-21, which was quite successful at that time. This engine was one of the first domestic post-war developments. It had such positive qualities as high manufacturability in production, convenience and ease of repair. A significant resource and high rates of power and torque, which is especially noticeable if we take into account the small weight of this motor.
All this significantly distinguished it from the lower-valve engines used earlier on the GAZ-69 and UAZ, structurally identical to the pre-war GAZ engines. The design of the new engine did not lose its development prospects in the 70s. By the beginning of which, the production of the motor, together with the equipment, was transferred from Zavolzhsky to the Ulyanovsk Motor Plant.
But this eliminated the additional prefabricated part. Improving the tightness of the system and the time it takes to fill it with oil when starting the engine. The use of a new filter and steel-aluminum liners of the crankshaft made it possible to significantly increase the engine life before overhaul, which (equal to the mileage) was 150 thousand kilometers. The relatively large thickness of the walls of the block and its head made this engine very insensitive to overheating.
Even the new ZMZ-24 engine, which was structurally more advanced at that time, which was replaced by the ZMZ-21 in the Volga region, was much more fragile in this regard. Despite the use of a more rigid block with the lower crankcase connector lowered below the crankshaft axis. With further modernization of the UMP engines for the UAZ-469, the thickness of the block walls also decreased, which was compensated by stiffeners. But the resistance of motors to overheating still remained at a high level.
I deliberately focus on the overheating factor, although this is not a conclusion from design flaws, but is only a derivative of force majeure. Which is especially typical for an army with young and inexperienced drivers and command principles such as "let's go, then you'll start it!". This is partly inevitable and justified, since it develops in the driver the qualities of a fighter, and not a pop star. Teaches you to think one step ahead. But what is useful for education does not have to be harmful to the rest.
In addition, the topic of improving the stability of the temperature regime and the efficiency of the cooling system did not leave the UMP designers. Since the motor itself was boosted and the conditions for its operation as part of an SUV used both in the Arctic and in Africa require not to stand still in this matter. So, with the maximum increase in the working volume of the engine, allowed by the dimension of the block, the problem of the quality of the cooling system became especially acute.
In the upgraded UMP engines for the UAZ-469, the cooling system became a dual-circuit one, the coolant circulation scheme in the engine was changed, which improved the temperature regime of its parts. Improving the economic and dynamic performance of the engine is also impossible without maintaining a stable and high temperature in it.
If in the case of the old cooling system this was limited by the requirements of the simplicity of the system and the use of water as a coolant, which quite objectively made it necessary to make the thermostat opening temperature quite low. Then, under the new system, objectivity was trampled on by the inertia of habits, multiplied by the lack of knowledge. Many drivers deliberately changed the factory thermostat to a different one, with a lower (like the old one) opening temperature. Or even removed the thermostat from the system.
If in the first case the car overused fuel and “pleased” the passengers with barely warm air from the stove, then in the second, overheating was a constant problem. Meanwhile, the development of engine requirements for the UAZ-469 exacerbated the real problems. Thus, the further forcing of the engine was opposed by the low filling of the cylinders with the working mixture at high speeds.
This was a consequence of the fact that structurally the inlet and outlet pipelines were located on the same side. Accordingly, on the one hand, inlet and outlet channels were obtained in the cylinder head. And such a solution did not allow increasing the flow sections of the channels due to their close location. In addition, the gasket between the pipelines and the head turned out to be quite narrow in some places.
In the absence of control over the tightening of the pipeline fastening nuts, these bottlenecks of the gasket were destroyed, and the composition of the mixture was disturbed due to air leakage into the intake. The solution to the problem was to separate the intake and exhaust on different sides of the head, which meant, in fact, the creation of a new engine for the UAZ-469 with the corresponding costs and time for its refinement and testing. UMP found a way out to the requirement to increase power in the form of an increase in working volume up to 2.9 liters, which the existing unit dimension allowed.
Power, of course, has grown, but the problem with occupancy has worsened even more. In the mid-90s, a qualitative breakthrough was made in this matter, where the long-awaited head appeared on the new UMZ-249 engine for the UAZ-469 with the inlet and outlet spaced apart on different sides. This made it possible to significantly improve the fillability in the entire operating range of engine speeds, and expand the range itself. Accordingly, the power and torque indicators were significantly improved.
But the decision to put the UMZ-249 engines into series was baffled for reasons that have no technical explanation. Even more doubtful in view of the change of ownership that took place during this time at UAZ and UMP was the prospect of using this engine as part of the Ulyanovsk off-road vehicle. As a result, the latter lost a light engine, which was the most suitable for him.
According to the materials of the magazine UAZIMUT. No. 1, 2011.
Pavel Trishkin.
The UMZ 417 engine was developed on the basis of the 402 series ICE of another engine manufacturer - ZMZ. It was created for specific UAZ vehicles - buses, SUVs and trucks. It was initially unfinished, but this moment 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.
It has a very low cost, the simplest design, high reliability and operational characteristics acceptable for heavy trucks, SUVs and minibuses, therefore it is still produced to service the giant fleet of UAZ 3151 and UAZ 3741 modifications.
Specifications UMP 417 2.45 l / 92 l. With.
The designers used part of the development of 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 resin-impregnated aluminum block and the extremely inconvenient rear crankshaft oil seal assembly remained the same.
Mechanical tuning of the next versions of the 417 engine family by UMP made it possible to increase the power to 98 hp. With. (4175.10 and 4178.10-52), adapt to diaphragm and lever clutches.
The table below contains the technical characteristics of the power drive UMZ 417:
| Manufacturer | UMP |
| ICE brand | 417 |
| Years of production | 1989 – … |
| Volume | 2445 cm3 (2.45 l) |
| Power | 67.67 kW (92 HP) |
| Torque | 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 per cylinder | 2 |
| Cylinder head material | aluminum alloy |
| Intake manifold | duralumin |
| cast iron | |
| camshaft | original cam profile |
| 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 oil is best for the engine by manufacturer | Liqui Moly, LukOil, Rosneft |
| Oil for UMP 417 by composition | synthetics in winter, semi-synthetics in summer, mineral |
| Engine oil volume | 6 l |
| Operating temperature | 90° |
| ICE resource | claimed 150,000 km real 250,000 km |
| Adjustment of valves | adjusting screws |
| forced, antifreeze | |
| coolant volume | 10.7 l |
| water pump | with plastic impeller |
| Candles for UMP 417 | BCPR6ES from NGK or domestic AU17DVRM |
| spark plug gap | 0.8 mm |
| Timing drive | gear wheel |
| The order of operation of the cylinders | 1-3-4-2 |
| Air filter | Nitto, Knecht, Fram, WIX, Hengst |
| Oil filter | with check valve |
| Flywheel | universal for oil seal ADS, lever and petal clutch |
| Flywheel mounting bolts | M12x1.25 mm, length 26 mm |
| Valve stem seals | manufacturer Goetze, inlet light graduation dark |
| Compression | from 13 bar, difference in neighboring cylinders max. 1 bar |
| Turnover XX | 750 – 800 min-1 |
| Tightening torque for threaded connections | candle - 31 - 39 Nm flywheel - 80 - 90 Nm clutch bolt - 19 - 30 Nm bearing cap - 70 Nm (main) and 60 Nm (rod) cylinder head - three stages 40 Nm, 120 Nm + 90° |
In turn, the design of the 417 motor became the basic solution for the next versions of UMZ 420 (did not go into series) and UMZ 421.
Design features
In principle, the UMZ 417 engine was copied from the ZMZ 402 engine, but differences still exist:
- landing sleeves in the block with rubber rings instead of copper gaskets;
- the flywheel is larger in diameter;
- no fins at the beginning of the release, then 4 stiffeners appeared;
- removable oil filter instead of glass;
- the scheme of the cooling system is reversed - both the supply and intake of coolant from the cylinder head;
- weak fiber gland of the pump instead of the gland from the VAZ engine;
- reduced diameter of the valve discs.
And the main reason for the decrease in the power of UMZ 417 in comparison with ZMZ 402 is the combined, not bifurcated exhaust manifold.
Design features are:
- in-line engine layout and its longitudinal location relative to the trajectory of the vehicle;
- small combustion chamber, dome configuration;
- improved cleaning of the lubricant (full-flow scheme with a replaceable filter);
- high operational resource from 150,000 km of run;
- short piston stroke and overhead valve arrangement.
To carry out a major overhaul, it is not necessary to visit the service station, all operations can be done on your own in the garage. To do this, the user manual contains both a description of the parameters and step-by-step photos.
Even in the absence of hydraulic pushers, the manufacturer recommends filling in high-quality oil and antifreeze to cool the engine with a very modest finning of the cylinder block.
The manufacturer also provides for the possibility of upgrading the intake / exhaust tract, cylinder head and ShPG.
List of engine modifications
For various tasks, several modifications of UMP motors come out of the factory:
- 417.10 - considered the basic option, compression ratio 7, operated 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, corresponds to 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, characteristics 171 Nm and 92 hp. p., 254 mm lever clutch;
- 4178.10-52 - exclusively for early UAZ models, compression ratio 8.2, Euro-1, characteristics 180 Nm and 98 hp. p., 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, instead of 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. with., starting heater, diaphragm or lever clutch.
The last two versions use additional and improved attachments, and the latest model for military UAZ vehicles uses the original factory forcing cylinder head.
Advantages and disadvantages
The disadvantages include attachments - a complex design of a two-chamber carburetor and a low resource of a pump impeller made of polymer material. Due to the use of an asbestos cylinder head gasket, antifreeze often seeps into the cylinders. From strong vibrations, the cylinder head nuts and covers are spontaneously unscrewed, oil leaks occur.
That is why the manual includes maintenance operations for periodic broach of nuts, do-it-yourself valve clearance adjustment.
On the other hand, the advantages of the ICE 417 design and all its modifications are:
- reliable, albeit obsolete, gas distribution system;
- high reliability and service life;
- reducing owner costs when using gasoline with a low octane rating;
- independent overhaul and mechanical forcing.
Unfortunately, tuning is able to add power within 30 liters. With. without turbine installation.
List of car models in which it was installed
The UMZ 417 motor was designed specifically for the Ulyanovsk Automobile Plant, therefore it was used in UAZ cars:
- 3151 - SUV;
- 3303 - four-wheel drive truck;
- 3741 - all-metal van 4x4;
- 2206 - 8 - 11 seater minibus;
- 3962 - ambulance and resuscitation vehicle;
- 3909 - Wagon-type farmer;
- 39094 - Farmer truck;
- DISA-1912 Zaslon - an armored car for collectors.
The motor was created a little later than the renaming of the UAZ 469 to 3151, and the UAZ 452 to 3741, so it is only in the modernized "Bobiki" and "Pills" - "Loaves". The characteristics of the engine made it possible to use it as a power drive for all UAZ models produced at that time.
UMP 417 maintenance schedule
Due to design flaws and obsolescence, the UMZ 417 engine has to be serviced between 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;
- candles and batteries - 60 thousand km;
- crankcase ventilation - 3 years;
- coolant - 40 thousand mileage.
Since the camshaft is located below, the timing is driven by a gear wheel. Such an internal combustion engine device is more reliable in comparison with a belt and chain drive, but obsolete, already at the time of development.
Overview of faults and how to fix them
The obsolete UMZ 417 motor does not bend the valve, but causes several other troubles:
The crankshaft rear oil seal is generally a weak point, so after the 421 motor exits, a rubber oil seal is used in this assembly, and not impregnated rope cord. This upgrade increases the resource, since replacement is much less common.
Motor tuning options
Since the UMZ 417 carburetor engine has a heavy piston system, tuning is carried out according to the scheme:
- boring of saddles at the outlet up to 39 mm and the use of valves from 412 internal combustion engines;
- installation of a 51 mm exhaust pipe;
- replacement of a regular camshaft with a city one to increase torque at low revs.
An important feature of this power drive is limited to 100 hp. With. potential, so even when replacing the carburetor with an injector, tuning will not bring the expected increase in power. Experts recommend for UMP 417 swap, that is, the replacement of the entire internal combustion engine.
Thus, the UMZ 417 motor was copied from the power drive 402 of the Zavolzhsky Motor Plant with minor changes. Even with the existing shortcomings, the internal combustion engine regularly serves in all-wheel drive buses, trucks and UAZ SUVs, that is, very difficult operating conditions.
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