Do-it-yourself construction and repairs

Diesel engine in the UAZ Patriot. UAZ patriot diesel: reviews from owners. Intake and exhaust camshafts

The UAZ Patriot diesel SUV was first released in 2008, which was no longer equipped with the usual gasoline engine from the Zavolzhsky plant, but with a foreign diesel engine from the Iveco concern. The diesel engine was borrowed from the Italian Fiat Ducato. Important feature Such a motor is that its environmental class complies with the Euro-4 standard. A diesel engine differs from a gasoline engine not only in the difference in the consumption of petroleum products, but also in power parameters, efficiency and environmental friendliness. Later, the engineers decided to equip this Russian car with a domestic diesel engine, installing 4-cylinder diesel units of the ZMZ-51432 and ZMZ-5148 series.

The appearance of the diesel UAZ Patriot is no different from the gasoline one, which cannot be said about the power reserve of the engines. If benzy new engine The ZMZ-409 has a power of 128 horses, but on a diesel engine their number was reduced to 113. But this factor did not in any way affect the cross-country ability of the SUV, and on the contrary, thanks to the increased torque, the UAZ Patriot behaves much better both on the road surface and and off-road. IN this material Let's look at all the characteristics of the diesel UAZ Patriot and find out which is better, gasoline or diesel?

It is worth noting another important feature of the diesel engine - it is reduced fuel consumption, which is 9 liters per 100 km, while the Zavolzhsky gasoline engine consumes at least 13 liters per 100 km. A diesel SUV is characterized by the following features:

  1. The weight of a diesel engine, be it Iveco or ZMZ-514, is much greater than ZMZ-409.
  2. Due to the heavier weight of the diesel engine, the front springs had to be strengthened on the SUV.
  3. If the Iveco or ZMZ-514 engine operates at minimum idle speed, then this can lead to negative consequences, or more precisely, to oil getting into the system.

The UAZ Patriot with the Iveco F1A and ZMZ-514 engines contains not only power and efficiency, but also safety. This car is perfect for city traffic, as well as for overcoming obstacles in any off-road conditions. In addition to efficiency and safety, it is worth noting the comfort of the interior. The Patriot's cabin can accommodate 5 people, and thanks to the additional seats in luggage compartment— this number of passengers can be increased to 9 people. So, let's take a closer look at the features of the UAZ Patriot SUV with a diesel engine.

Characteristics of diesel UAZ Patriot

The ZMZ-514 engine has a displacement of 2.2 liters, and the consumption does not exceed 9 liters in mixed traffic. The engine is equipped with an exhaust gas recirculation system and turbocharging.

In addition, the following parameters are characteristic of such a domestic diesel engine ZMZ-514:

  1. The gearbox is mechanically controlled, and the injection of the fuel mixture is direct.
  2. The engine design has a special pump that pumps fuel.
  3. The cooling system is made of liquid type closed design, which has forced circulation.
  4. The presence of a turbocharger allows exhaust gases to be removed faster.
  5. The total weight of the engine is 225 kg.

It is also important to note that the fuel supply system is a distribution system with a mechanical pump regulator.

Important nuances

Everyone knows that this type of petroleum fuel, such as diesel fuel, is very sensitive to cold. In this case, there are a lot of nuances that are important for owners of UAZ Patriot diesel SUVs to know.

When the air temperature drops to 0 degrees and below, it is important to keep in mind that it is not recommended to start the engine right away. To do this, you should first turn the ignition key to the first position, wait 2-3 minutes, and then try to start it. What is it for? This is done in order to preheat the fuel filter, from which fuel enters the system.

If you become the owner of a Patriot straight from the showroom, then it is important to know that such a car requires a preliminary break-in test. Running in is driving a car in gentle modes. The break-in period is approximately 2500 km; during this time it is not recommended to drive in extreme conditions with maximum loads.

The service life of a diesel engine is much longer than that of a gasoline engine, but it all depends on the nature of driving and compliance with certain operating modes. If the engine constantly experiences maximum loads, which will lead to its overheating, then such a unit will have to be repaired, and in the worst case, repaired complete replacement. For the ZMZ-514 or Iveco UAZ Patriot diesel engine, you need to refuel with really high-quality fuel. It is recommended to refuel Euro series diesel.

Removal and installation in the car

Installation of an Iveco or ZMZ-514 engine may be required if it was previously dismantled for the purpose of a major overhaul. Let's take a brief look at what it means to remove and install a diesel engine on a UAZ Patriot SUV.

To remove the engine, you must first drain the coolant, disconnect all pipes and remove the radiator. It is also necessary to remove the hood cover, since it will be an obstacle when removing the engine weighing 225 kg.

All wires and tubes, muffler, cardans, etc. should be disconnected. The bolts securing the gearbox to the engine, as well as the filter, generator and fuel pump are unscrewed. Only after the engine is completely de-energized will it be possible to begin dismantling it. For dismantling, it is best to use a winch, and if it is not available, the help of 4-5 people will be required to remove the motor. The difference between dismantling a diesel engine and a gasoline engine is the weight of both units. The weight of a diesel engine is approximately 50 kg more, so you need to be extremely careful with such a unit.

The engine is installed in the reverse order of removal. After installing the motor, you should be sure to double-check the tightness of all bolted connections, and only then start and check the engine.

Why do you need diesel maintenance?

A diesel engine, like a gasoline engine, does not require periodic and timely maintenance. This must be done to ensure that the unit works well and has a long service life. First of all, it is important to change the engine oil in a timely manner (every 8,000 km).

This should be done in order to prevent aging of the internal structure of the motor. And the factor leading to this aging is low-quality diesel fuel, which contains sulfur.
Changing the oil is the most important process any engine needs. For diesel Patriot It is important not just to update the oil, but also to constantly use lubricant from the same company.

No less important point is the timely replacement of the timing belt on a diesel unit. This must be done every 60,000 km. Although the service life of belts is about 100,000 km, it is better to replace them first, before they break. After all, after a break, it will be necessary to replace the camshafts, rocker arms, and heads. Replacing the timing belt is carried out in conjunction with a tension roller, which has a similar service life.

The fuel system requires maintenance, so the fuel filter should be cleaned every 8,000 km. If fuel of unknown origin is used, then such measures should be carried out much more often. The tank should be flushed every 2 years as sediment accumulates in it.

To summarize, it is worth emphasizing that the cost of a diesel Patriot is 100,000 thousand more than a gasoline one. But this suggests that with the help of such a vehicle you can not only overcome off-road conditions, but also save money when operating a car on asphalt. The gasoline engine also has its advantages and disadvantages, but we learn about this from the material about the ZMZ-409 gasoline engine.

You can check your BMR and if you need to reduce it!

Motor for 469 model

Engines for the UAZ 31514 are available in several versions. Based on the type of fuel, they are divided into gasoline and diesel. Many characteristics of the vehicle, including fuel consumption, depend on which engines are installed in the UAZ.

For example, a UAZ ICE 210.10 gasoline engine with a volume of 2.4 liters has the following characteristics: power - 91 hp. s., fuel consumption - almost 12 liters per 100 km. UMZ 4178.10 engines of the same volume already have 87 horses and fuel consumption increases by one and a half liters.

General characteristics of engines

The main suppliers of engines for UAZs were the Ulyanovsk Motor Plant and the Zavolzhsky Motor Plant. UMZ has become famous for being practically the only Russian manufacturer of engines for off-road vehicles. All modern engines produced from the plant’s assembly line meet Euro-4 standards.

ZMZ produces more than 80 various modifications engines with volume from 2.2 to 4.6 liters. The units of this plant are installed on both small SUVs and buses of domestic and foreign companies.

There are other types of engines that are installed on UAZ 31514 vehicles:

  • UMZ 4218.10 volume 2.8 l (petrol);
  • ZMZ 410.10 volume 2.9 l (petrol);
  • UMZ 420 with a volume of 2.4 liters (petrol);
  • ZMZ 514 with a volume of 2.2 l (diesel);
  • Andoria 4CT90 2.4 liter (diesel).

The Andoria engine, installed on UAZ 31514, Iveco and UAZ Patriot vehicles, is produced not in Russia, but in Poland. These engines are in demand not only at the Ulyanovsk Automobile Plant. They are also installed on other Russian-made vehicles.

Basic engine UMZ 421.10 for UAZ

The base UMZ 421.10 engine with a carburetor system, having a volume of 2.9 liters, runs on gasoline. Has a gas release system. Can operate at temperatures from -50 to +50 degrees Celsius. A modification of this motor was unit 4218.10.

The main difference between the UMZ 4218.10 is the gas exhaust system, which is not configured. This simplifies the installation of the engine on UAZ vehicles, even with a carriage-type body. Currently, motors of this series have several modifications.

UAZ 39626 and Patriot engines

The UAZ 39629, otherwise known as a “sanitary” vehicle, is most often used for transporting patients and is available in most medical centers. Widely used in both cities and rural areas. These machines are equipped with three different engines.

  1. ZMZ-402.
  2. UMZ-4178, similar in characteristics to the first, only the manufacturing plants differ. These engines have a displacement of 2.4 liters and a power of 92 horsepower.
  3. UMZ 4218 with a volume of 2.8 liters and 98 liters. With. under the hood.

UAZ Patriot cars are equipped with a four-cylinder, four-stroke engine of the ZMZ 409.10 series. The valves are located at the top, and the cooling is liquid. The ignition system of this engine is microprocessor-based, fuel injection is distributed. The ZMZ-51432 diesel engine for the UAZ Patriot is simply a necessity.

Diesel fuel is more economical and practical

In Russia, diesel fuel is gradually becoming fashionable, but until recently the production of diesel engines was just a plan. Foreign diesel engines, as a rule, were not suitable for the UAZ Patriot, and attempts to aggregate them were abandoned.

Reviews of the UAZ Patriot diesel engine from the foreign company IVECO F1A end with negative reviews about its quality. Maybe because Ulyanovsk or Trans-Volga engines are more common for Russian cars. The volume of the foreign engine is 2.3 liters and the power is 116 horses. The Italian engine is noisier and less powerful. However, owners of a Patriot with a foreign engine will be pleased with good traction and fairly economical fuel consumption - just under 10 liters per 100 km.

Not long ago, the Zavolzhsky Motor Plant began producing a diesel engine for the UAZ Patriot and UAZ Pickup SUVs. The ZMZ-51432 engine is a small-displacement engine, its volume is 2.2 liters, and complies with the Euro-4 standard. The engine has a maximum power of 114 horsepower, 3500 rpm and low fuel consumption.

The engine has many original parts, which has improved its energy and economic performance. At the same time, emissions of harmful substances have been reduced: by half compared to engines that comply with Euro-3. The noise level has decreased in accordance with standard requirements.

Characteristics of the UAZ 469 engine

The UAZ 469 has a 4-cylinder engine of the UMZ 417 series with a volume of 2.5 liters. The power of such an engine reaches 75 horses, the valves are located at the top. The fuel supply system is forced. Closed system cooling, liquid with forced circulation. The nuance of this engine is quite decent fuel consumption, up to 16 liters per hundred.

Two different modifications of this engine are installed on the UAZ 469 for two different purposes. UMZ 4178 - for ordinary civilian models, UMZ 4179 - for military ones. The difference between “military” motors is that they are equipped with a distribution sensor and high-voltage shielded wiring. In addition, they have a special place for heating.

A distinctive feature of the UMZ 417 series engine is the special design of the combined cylinder block and the upper part of the crankcase into a single unit, made of high-strength aluminum alloy. The cylinders are wet removable liners and are cast from gray cast iron. The wear resistance of the liner is ensured by acid-resistant cast iron in the upper part.

Aluminum cylinder head assembly for UMZ 417 engine

The cylinder head is common to all cylinders and is made of aluminum alloy, just like the pistons. The five-bearing crankshaft is made of magnesium cast iron.

Features of the Hunter engine

The UAZ Hunter, which replaced the UAZ 469 in 2003, is equipped with both gasoline and diesel engines. The differences between the gasoline and diesel engines in Hunter are minor.

The base power unit for this car was the four-cylinder ZMZ 409.10 with a volume of 2.7 liters. The engine is equipped with a 16-valve mechanism and distributed fuel injection. The power of the unit reaches 128 horsepower. The engine's appetite is up to 13 liters per 100 km.

The diesel engine for Hunter brand ZMZ 5143.20 has four cylinders arranged in a row. The engine capacity is 2.2 liters and has a fuel injection system. In terms of economy, the diesel engine is significantly superior to its gasoline counterpart. It requires a maximum of 10 liters per 1000 kilometers. But the dynamics suffer slightly; diesel in this regard is slightly inferior to gasoline.

The engine reliability of the UAZ Hunter is the highest. The main thing, as the developers convince, proper care and timely repair of failed parts. The engines perform well in off-road conditions in terms of traction development and are not capricious in harsh Russian winters.

Example of engine tuning

Tuning engines installed on UAZ vehicles is not so easy to do. Any interference with the motor may result in a decrease in traction force. And the models of many engines are outdated, so too many innovations and changes can play a cruel joke on them.

It is possible, of course, to modernize some mechanisms and systems. Changes to the piston group must be carried out with caution, following the instructions. The piston rings are replaced with forged ones, which are of higher quality and stronger. The well-known company "Götze" produces just such rings. If desired, you can install other parts, but the work will require a professional approach and the appropriate tools.

You can balance the crankshaft of a UAZ 31514 car at home only with a flywheel. By installing the crankshaft on one of the ribs of the T-shaped plates, the heaviest point is determined. The crankshaft will roll along the plates until it stops with the heaviest point down. From this point you will need to remove a small layer of metal, periodically checking the result.

The timing belt has a number of features, so it is better for non-specialists not to change its design. Moreover, the camshaft is tuned only for sporting purposes. If something goes wrong, engine performance will only worsen.

The intake and exhaust manifolds on the UAZ 31514 are tuned by many car owners. The primary task is to eliminate the step between the windows and the collectors. The holes often don't line up.

Serrations inside the commutator bore can be removed by rough machining or more thorough polishing. This modification will improve engine performance in terms of uniform filling of the cylinders and improve its performance.

Very often, car owners are faced with the question: is it worth changing the engine of a car from gasoline to diesel? Answering “yes” to it, many other questions immediately arise: from which diesel engine is better to where to get spare parts. Let's try to understand these points.

Diesel: advantages

Perhaps the main advantage of this type of engine is, of course, savings. In conditions modern world When prices are rising, including for gasoline, changing the engine means winning on fuel. Firstly, diesel always consumes less fuel than an engine running on gasoline. On average, this figure is about thirty percent. And the fuel itself is almost ten percent cheaper than gasoline - again, this is the national average.

The efficiency of a diesel engine is about forty percent - this is if the engine is not new. And more powerful units, which have intercooling and turbocharging, generally provide an efficiency of more than fifty percent.

The resource of a diesel engine is almost one and a half times longer than that of its gasoline counterparts.

These are the main positive aspects of engines of this type. Now to the cons.

Diesel: disadvantages

Naturally, the diesel engine is not ideal. With all its positive qualities, you can find just as many (if not more) disadvantages:

  1. Firstly, the weight of an engine of this type is much greater than that of a gasoline engine. In case of repair, you will have to tinker with installation, carrying and other unpleasant things.
  2. Secondly, a car with a diesel engine already installed will be more expensive than exactly the same one, but running on gasoline. Even if you decide to buy the engine separately in order to install it on an existing car, it will cost you a pretty penny.
  3. Point three, by the way, is very relevant in the conditions of our country, especially for car owners in the Siberian expanses: diesel fuel is very sensitive to low temperatures. There is even special winter fuel to minimize the risk of fuel freezing.

Actually, these are perhaps the main disadvantages of this fuel. Now, let’s specifically discuss the diesel engine on UAZ of various types.

For what?

When installing a diesel engine in a UAZ, of course, the car owner pursues not only the goal of saving fuel costs. Diesel is power, solidity, so to speak. After all, the first thing that comes to mind when the UAZ brand is called is cross-country ability. Indeed, what kind of car do we most often imagine when the conversation turns to moving across rough terrain, among swamps, forests, and rivers? What engine pushes the car, allowing it to overcome any obstacles? Which units are popular and which are already outdated? Before a car owner wonders how to install a diesel engine in a UAZ, he will first think about what kind of engine is needed.

Diesel for the "loaf"

Let's figure out what kind of diesel engine is usually installed on the UAZ-452 ("loaf" - among the people). Another name for such a car is “tablet”. Below will be presented those engines that, according to experts and car enthusiasts, are most suitable for such a car.

The Peugeot Indenor engine is very much appreciated by drivers - it was installed on the Ford Sierra already in the distant eighties. But despite its age, this particular engine is considered the most suitable and reliable for a “loaf”. Engine volume is 2.3 liters. If this is not enough, then you can install the same one, but from Ford Scorpio and Ford Transit cars of the same years - their volume is 0.2 liters larger, and if you try, you can even find turbocharged engines. They weigh slightly more than their gasoline-powered “colleagues”, and installing them knowledgeable person It’s also not difficult at all.

Another popular engine for the “loaf” is called “diesels” from Mercedes, whose volume is: 2.2, 2.4 and 3 liters. It is advised to pay attention to engines that were produced in the late seventies. It’s just more difficult to install them - more due to the fact that the oil filter is designed very poorly and is located in front and at the very bottom. If the car moves over rough terrain, all the bumps and stumps will “stick” into the filter. Therefore, it is necessary to install additional protection in order to keep the engine safe and sound.

A diesel engine for UAZ from the Isuzu company, model 4-JJ-2, is highly recommended. Its volume is 3.1 liters, and it is also turbocharged. The main problem with such an engine is that it is almost impossible to get it, especially in Russia.

And the last one on this list will be Toyota Hiat, 2 liter. According to many, it is the most reliable, high-quality, and absolutely hassle-free. It is quite easy to buy, you can install it without any problems and maintain it without straining, because there are also enough spare parts for it. They only advise buying those engines that were produced before the end of the eighties, because all the parts are made of cast iron, and on later engines some of the parts are made of aluminum.

UAZ "Patriot" with a diesel engine

We talked about the “tablet”, now about “Patriot”. Initially, the cars were equipped with an engine of Italian origin from Iveco. Its indicators are as follows: 2.3 liters - volume, 19-13 liters per hundred kilometers - consumption on the highway. But they didn’t stage it for long: apparently they decided that if it’s “Patriot,” then all the components should be domestic. We switched to ZMZ diesel.

The ZMZ diesel engine in the UAZ Patriot was clearly installed in the wrong place, as many car owners believe. The engine for such a large car is clearly weak, in some places it frankly “didn’t handle” off-road, as UAZ drivers say. Of course, a diesel engine, for example, ZMZ 51432, is much better than its “gasoline brother,” but still not the same.

They found a solution that was difficult to implement, but reliable: install the same engine from Iveco that was once factory for this car. Again, the most praised is the F1A, whose volume is 2.3 liters and power is 116 hp. With. If you also pair it with the Korean Daimos gearbox, then it turns out just great. The same engines are easily installed on the UAZ Hunter. The only thing is that you have to tinker and it also costs a lot of money.

What diesel engines are installed on the UAZ Kozlik?

For the big-nosed UAZ, they recommend the opposite - a diesel engine from the ZMZ series. For example, ZMZ-406, ZMZ-405 or ZMZ-409. Of course, you will have to dig into almost everything: fastenings, exhaust and fuel systems, you will need to remake the clutch housing and change the wiring diagram. But this is the most budgetary and most practical option.

If the engine is installed from the Mercedes company, then the ones most suitable for such a rearrangement are OM616 and OM617. They are called very reliable, time-tested and quite economical.

If you install a Toyota engine, then the 1KZ-TE unit is best suited for this role. When you install it in a car, you will certainly have to tinker. But you don't need to touch the body. But diesel 2 LT from the same company is called the easiest to install. You just need to grind out a spacer for the front driveshaft of about two centimeters and push the radiator forward just a little bit.

Peculiarities

When installing a diesel engine on a UAZ, you may encounter some nuances. Firstly, when attaching a diesel engine, it is almost always necessary to redo the mounting points, the pallet, you need to re-weld the brackets or, in general, add new ones. Secondly, there is no way to ignore the fuel supply and cooling systems of the car engine. All this will also have to be improved. Other changes will affect electrical equipment, which will have to be adjusted to the new engine. The scope of the tasks will depend on what type of diesel engine you decide to put in your car.

Another problem faced when cars are rebuilt is noise. Diesel is quite loud in operation, so you should take care of sound insulation, otherwise you will be forced to drive with not very pleasant music. The car also needs vibration isolation - compared to gasoline engines, diesel engines produce a lot of vibration. This applies even to new, no doubt, modified models.

More specifically about ZMZ

Engines of this type have already been discussed above. Many car owners say the main disadvantage of such an engine is low power. Indeed, for UAZ cars, with a fairly large weight and high requirements for cross-country ability, the engine is considered a burden. And its resource is on average 100,000-150,000 kilometers, which is not much. Despite the fact that spare parts for it can be found in abundance at any spare parts store, all of them are not of very good quality. Which also does not make good advertising for the engine.

But there are also advantages: they note that it is very easy to install and repair in case of breakdown, literally in the field. Not picky about the weather. A simple hard worker, without foppery, who fits any UAZ car.

Conclusion: the pros and cons of a diesel UAZ

Having acquired diesel engines, UAZ cars began to roam the expanses of Russia with even greater energy. But seriously, a high-quality converted UAZ simply has no competition all over the world as an SUV. By the words “qualitatively remade”, of course, we do not mean factory assembly, and an already pumped up car - with a new engine, securely tightened bolts, and tested electronics. Fortunately, car owners are usually skilled people. Therefore, let's summarize: this good idea- install diesel in the UAZ. Reviews, at least on any motorist forum, are mostly positive. Of course, disputes arise about which engine is better to install in a car, but this is a matter of practice. Whether it’s a UAZ “Hunter” or a “Kozlik” - if the car is in capable hands, then it obviously won’t get any worse from modifications.

There are also disadvantages - again, according to reviews from the owners. The weight of the car has increased - albeit just a little, but still the heavy engine makes itself felt. And also the price. Still, changing an engine, especially given our economic situation, is not easy.

Models UAZ-236021 and UAZ-236022, instead of the ZMZ-40905 engines already familiar to the UAZ Patriot, UAZ Pickup, UAZ Cargo and UAZ Hunter, a new ZMZ-409051.10 Pro Euro-5 engine is installed, made on the basis of the ZMZ-40905.10 Euro-4 engine.

On the ZMZ-409051.10 Pro Euro-5 engine, changes affected the cylinder head, exhaust valves, pistons with pins and piston rings, crankshaft sprockets, camshaft and intermediate shaft. Other camshafts and camshaft drive chains are installed. Instead of a chain tensioner shoe, a tensioner lever with an asterisk is installed.

Cylinder head.

The ZMZ-409051.10 Pro Euro-5 engine is equipped with a cylinder head 406240.1003007-21. It differs from the cylinder head 40624.1003007-20 of the ZMZ-40905.10 Euro-4 engine by reinforced exhaust valves.

Exhaust valves.

Instead of valves 406.1007012, exhaust valves 406000.1007012-05 manufactured by JSC ChAMZ are now used. Their reliability is increased due to the use of more heat-resistant steel 55Х20Г9AN4 GOST 5632-72 with increased hardness.

Piston with pin and piston rings.

Instead of 40904.1004013 used on the ZMZ-40905 Euro-4, the ZMZ-409051.10 Pro Euro-5 engine is equipped with pistons 409051.1004013-00 manufactured by Dong Yang Piston with a modified bottom shape to ensure a compression ratio of 9.8. They provide the best technical and economic performance of the engine and the absence of scuffing when starting the engine at temperatures down to minus 30 degrees. They reduce crankcase gases and engine oil waste and have an increased resource.

Sprockets of the crankshaft, drive, camshaft and intermediate shaft.

Crankshaft sprocket 40904.1005033 was replaced with 406.1005033-10.
The drive intermediate shaft sprocket 40904.1006018 was replaced with 406.1006018-10.
The driven intermediate shaft sprocket 40904.1006035 was replaced by 406.1006035-10.
Camshaft sprocket 40904.1006030 was replaced with 406.1006030-40.

Intake and exhaust camshafts.

Intake valve shaft 406.1006011-10 with profile 252 and cam lift of 9 mm, replaced by camshaft 409051.1006011-00 with profile 252 and cam lift of 9.5 mm.

Exhaust valve camshaft 406.1006012-30 with profile 252 and cam lift height of 9 mm, replaced by camshaft 409051.1006012-00 with profile 264 and cam lift height of 9.45 mm.

Camshaft drive.

The lower camshaft chain 40904.1006040-01 (84 links) was replaced with 514.1006040-20 (72 links).
The upper camshaft drive chain 40904.1006040-11 (108 links) was replaced with 406.1006040-30 (92 links).

The ZMZ-409051.10 Pro Euro-5 engine uses double-row bushing chains with a bushing diameter of 6.35 mm and a corresponding change in the profile of the teeth of the mechanism drive sprockets with an increase in the width of the chain groove in the chain guides.

The lower chain tensioner shoe 40904.1006075, the upper chain tensioner shoe 40904.1006090 were replaced with a tensioner lever with a sprocket 514.1006050-10.
The upper chain stabilizer 40904.1006150 was replaced with a stabilizer 406.1006150-20.
The lower chain stabilizer 40904.1006170 was replaced with a stabilizer 406.1006170-20.
The middle chain stabilizer 40904.1006160 was replaced with a stabilizer 406.1006160-20.

UAZ Patriot engine, which was installed on last year’s model, remains on the restyled UAZ Patriot 2015. There have been no major changes; buyers are offered a choice of petrol and diesel engine options. Both engines are ZMZ brand. The ZMZ-51432.10 CRS diesel engine with a Common Rail fuel supply system and turbine complies with Euro 4. The new gasoline ZMZ-409 also complies with Euro-4 and is ready to digest AI-92 fuel. Today we will talk in detail about the characteristics of both engines.

So, gasoline engine UAZ Patriot ZMZ-409, this is a 4-cylinder, 16-valve, in-line, with an integrated microprocessor fuel injection control system. Fuel injection is carried out into the intake pipe. An ignition system with coils that supply current to spark plugs screwed vertically into the center of the combustion chambers. There are even special wells in the cylinder head cover for this purpose. A microprocessor system with an electronic engine control unit automatically controls the ignition timing.

The cylinder block of the power unit is cast from a cast iron alloy, the cylinder head is aluminum, with two camshafts and hydraulic valve compensators. Timing chain drive. At the same time, the chain device of the gas distribution mechanism of the UAZ Patriot engine is very complex, since it consists of two chains connected through an intermediate shaft. Plus there are two hydraulic chain tensioners with sprockets. This whole structure is weak point of the entire engine, since insufficient tension and failure of the hydraulic tensioner lead to increased operating noise of the UAZ Patriot engine. In addition, hydraulic compensators often fail, which leads to knocking in the valve mechanism.

Engine UAZ Patriot 2.7 petrol (128 hp) characteristics, fuel consumption, dynamics

  • Working volume – 2693 cm3
  • Number of cylinders – 4
  • Number of valves – 16
  • Cylinder diameter – 95.5 mm
  • Piston stroke – 94 mm
  • Power hp/kW – 128/94.1 at 4600 rpm
  • Torque – 209.7 Nm at 2500 rpm
  • Compression ratio – 9
  • Fuel brand – gasoline AI 92
  • Ecological class – Euro-4
  • Maximum speed – 150 km/h
  • Acceleration to 100 km/h – n/a
  • Fuel consumption on the highway – 11.5 liters

Naturally, the manufacturer does not provide objective data on the fuel consumption of the gasoline Patriot in urban conditions. The reason is clear; rather high fuel consumption can scare off buyers. If you want to save on fuel, then buy a UAZ Patriot with a diesel engine, which we will talk about later.

Diesel UAZ Patriot assembled at the same Zavolzhsky Motor Plant. In-line 4-cylinder, 16-valve power unit with two camshafts. Timing chain drive, with hydraulic tensioners. The valve mechanism has hydraulic compensators. The cylinder block is cast iron, the cylinder head is aluminum, there is a turbocharger. The ZMZ-51432.10 CRS diesel engine with a Common Rail fuel supply system has an electronically controlled “BOSCH” fuel supply system with a maximum injection pressure of 1450 bar. For the injection pump drive (fuel pump high pressure), the water pump and the generator use a poly V-belt with an automatic tensioning mechanism.

UAZ Patriot diesel engine, with direct fuel injection, turbocharging and charge air cooling, complies with the Euro-4 environmental class. This engine has good torque, which is indispensable for off-road use, plus quite moderate fuel consumption. Below detailed characteristics Patriot diesel engine.

Engine UAZ Patriot 2.3 diesel (114 hp) characteristics, fuel consumption, dynamics

  • Working volume – 2235 cm3
  • Number of cylinders – 4
  • Number of valves – 16
  • Cylinder diameter – 87 mm
  • Piston stroke – 94 mm
  • Power hp/kW – 113.5/83.5 at 3500 rpm
  • Torque – 270 Nm at 1300-2800 rpm
  • Compression ratio – 19
  • Type timing/timing drive – DOHC/chain
  • Fuel brand – diesel
  • Ecological class – Euro-4
  • Maximum speed – 135 km/h
  • Acceleration to 100 km/h – n/a
  • Fuel consumption in the city - n/a
  • Combined fuel consumption - n/a
  • Fuel consumption on the highway – 9.5 liters

The Patriot diesel unit has a problem with the 5-speed manual transmission, which does not allow it to take full advantage of the engine. When driving on the highway, the diesel engine simply lacks 6th gear. Although it is ideal for off-road use. By the way, the gearbox for a gasoline engine has a gear ratio of the main pair of 4.11, for a diesel engine it is 4.625. When purchasing, it is recommended to install a pre-heater, otherwise in winter there will be problems with starting this engine.