10 childhood diseases of the most famous Patriot and Hunter engine


The engine of the UAZ Hunter is similar to the power unit from the Patriot. The manufacturer has developed two versions of this engine. The first model was petrol, the second – diesel. It was called ZMZ 514. And it was produced from 2002 to 2006. Despite such a short production period of the modification of the ZMZ 514 engine, it managed to be remembered by all car owners as a reliable and powerful unit. As they say, there is no point in installing an engine with a cubic capacity like a small car on SUVs. Then the SUV turns into a tank with pedals.

Inaccurate selection of pistons to cylinders

When disassembling almost new engines, experts sometimes note gaps in the piston-cylinder pair of up to seven hundred square meters. In other words, the piston initially dangles in the cylinder.

This worsens the operating mode of the rings, which quickly wear out and cease to “hold” both compression and oil. The design of the piston is also not conducive to durability.


In pursuit of relief, they made a very small heat zone - the distance from the piston bottom to the first ring. In this case, all the rings are shifted towards each other. The rings are in a hotter zone, and the oil cokes in them faster.

In pursuit of relief, they made a very small heat zone - the distance from the piston bottom to the first ring. In this case, all the rings are shifted towards each other. The rings are in a hotter zone, and the oil cokes in them faster.

Domestic eight

Experienced mechanics say that they often saw domestic eights installed on Hunters with an aluminum cylinder block and an aluminum cylinder head. For example, ZMZ 523. This engine has a volume of 4.7 liters. It can be found on PAZ buses. With this engine, Hunter is literally transformed.

Firstly, the driver and passenger will enjoy driving it. Nothing rattles or hums. The engine runs like a cat purrs.

However, to install it you will have to dig a little under the car. For example, you need to drill new holes in the clutch housing. Additionally, it is necessary to check the valve clearances and bolts on the cylinder head.

Similar article Technical characteristics and review of the 601 Mercedes engine

If you don’t want to swap for a domestic eight, then experienced mechanics can recommend an engine from Mercedes Benz. This is OM 616. It will fit perfectly into the internal space for the engine under the hood.

OM 616 is not demanding on the quality of diesel fuel. The only problem is that it is difficult to find a similar power unit on the market today. Even for used motors, this is too old a device.

However, if the car owner can find an OM 616 in good condition, then installing it on the Hunter will make the driver happy beyond measure. The engine has good bottom-end thrust, the engine is reliable and does not require any special tools to repair it.

Lucky or unlucky?

Each ZMZ motor is a lottery. There are many weak points, and there is a high probability that a malfunction will occur even after short runs.


A properly assembled ZMZ-409 can have a power of up to 170 hp. and a resource of at least 250,000 km.

A properly assembled ZMZ-409 can have a power of up to 170 hp. and a resource of at least 250,000 km.

Interesting: fans of the Patriot SUV constantly share their impressions of improvements on the forums. For example, I changed the camshaft phases by a few degrees - now the car starts moving.

Can you imagine such a discussion on a forum for fans of Volkswagen or Kia models?

  • American auto chemicals Cyclo and SUPROTEC additives will help maintain the good condition of the car's components and assemblies. You can read about how to properly maintain a car in the books of the Za Rulem publishing house.
  • “Behind the Wheel” can now be read on Telegram.

10 childhood diseases of the most famous Patriot and Hunter engine

Specifications

Gasoline and diesel power units differ from each other in technical parameters. All of them are manufactured at domestic factories: Ulyanovsk and Zavolzhsky. And the base engine, which you can find on Hunter, has a modification of UMZ 421.10. This is a power unit, the fuel for which is gasoline, preferably grade AI 95.

Motors are unpretentious devices; they will endure a lack of oil and poor quality gasoline for a long time. Equipped with a carburetor mechanism and a gas exhaust system. According to experienced mechanics, the engine can be operated at temperatures from minus 50 to plus 60.

Timing drive – chain. The block is made of aluminum. The sleeves are cast iron. Two camshafts are equipped with hydraulic compensators. Therefore, the car owner no longer needs to go to a service station every 30 thousand kilometers to correct the valve clearances.

For a range of 100 km, the engine requires 13 liters of fuel. This is a good indicator in contrast to the Toyota Land Cruiser 200, which consumes 20 liters each. Although experienced mechanics advise using AI 95 for refueling, practice shows that the engine will work for a long time on AI 92.

Attention! The gas distribution drive of the Hunter engine has a complex design. Two chains are used, which are connected to each other through an intermediate shaft. Because of this design, car owners often complain about the noise of the Hunter engine.

Now let's look at the gasoline engine with a volume of 2.7 liters and a power of 128 horses.

Similar article Technical characteristics of the GAZ 52 engine

Engine UAZ Hunter 2.7 petrol 128 hp

The technical parameters of the Hunter off-road vehicle engine are given in the table.

ParameterMeaning
ViewRow
Valves16
Cylinders4
Power128 horses
Torque209 Nm
EcoclassEuro 4
Maximum speed130 km/h
Compression9
Cylinder diameter95,5
Piston stroke94
cubic capacity2.7 l
Life resource250 thousand km

The gasoline engine in the UAZ Hunter will easily pull the car out of muddy ruts and swampy areas. However, many domestic car owners say that, unlike a diesel engine, the gasoline engine of a Hunter SUV still has high gas mileage. Although in reality everything happens exactly the opposite.

But in most cases they buy a Hunter with a diesel engine.

Engine UAZ Hunter 2.3 diesel 114 hp

Now let's look at the technical parameters of the diesel engine on the Hunter. These characteristics are also given in the table below.

ParameterMeaning
TypeRow
Cylinders4
Valves16
Maximum speed120 km/h
EcoclassEuro 4
Fuel consumption in mixed mode10.6 l
Cylinder diameter87 mm
Piston stroke94 mm
Power113 horses
Compression19
Torque270 Nm

As can be seen from the table, a diesel power unit still consumes about a liter more fuel.

Replacing the UAZ Hunter engine

When is it necessary to repair or replace the power plant on a UAZ Hunter? First of all, when the first signs of its malfunction appear. The first such signal may be noise during its operation - this most often happens with gasoline engines; diesel looks much better in this regard.

The replacement procedure itself is very complex and requires a lot of skills, and therefore it is best to carry it out in a specialized service center, where specialists work.

You can also find out more about the replacement in the following video:

Interior

The interior of the Hunter matches its appearance - spartan and no hint of comfort. But the designers have at least slightly redesigned the seats, increasing their comfort, and also equipping the rear row with headrests. By the way, it is separate.

Unlike previous models, the front panel of the Hunter is trimmed with plastic. The main place on it, and the central one, is reserved for the instrument panel. All information sensors on it are round, analog, located in a row, which determines such dimensions of the tidy. Below the sensors there is a block of functional keys.

There is no center console as such. Instead, there is an opening with visible electrical wiring and air ducts of the heating system.

Although the Hunter appeared in 2003, they never got around to installing power windows in the doors. Instead, there is split glass, and if the driver wants to ventilate the interior, he needs to move one of the glass halves to the side.

The transmission of this car is controlled using two levers coming from the central tunnel. One of them controls the gearbox, and the second controls the transfer case. That's all the interior equipment.

Read more: Sign with arrows in different directions

Options and modifications

Sales in Russia

YearVolume
20143 740
20153 564
20163 591
20171 678
20181 445
20191 059
2020
  • Hunter Classic is a version equipped with metal bumpers and a tailgate, and is also distinguished by the absence of plastic linings on the body.
  • In 2010, UAZ produced a limited edition of the UAZ-469 car for Victory Day.
  • In 2015, a limited “Victory Series” was released, dedicated to the 70th anniversary of Victory in the Great Patriotic War. On board these cars there is airbrushing similar to the design on the fuselage of Titarenko’s plane - the main character of the cult Soviet feature film “Only “Old Men” Go to Battle”, in the color of the war years - “Protective” (non-metallic green), chrome plated “Victory Series” nameplates, .
  • UAZ Hunter Devolro is a tuning American version, most of the units used are from third-party manufacturers.
  • In 2022, 469 units of the “Anniversary” special version were produced in honor of 45 years since the start of serial production of the UAZ-469. The version was distinguished by a three-color color: green bottom, black top and white roof, and the rear door was made in a classic style with two flaps.
  • In 2022, a special series “Expedition” was released in bright orange, with additional certified equipment: an arch, power bumpers and sills, a roof rack, an electric winch and a tow bar. A special feature of the series is a folding tailgate instead of a hinged door and enlarged rear wheel arches.
  • In 2022, the Czech company MW Motors developed an electric car version and a right-hand drive version, which will appear on the market in Europe and the UK under the name MWM Spartan in the second half of 2022.

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.

The crankshaft is being balanced

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.

1KZ-TE

You can install a Japanese 1KZ-TE or 2L-T engine on the UAZ hunter; in the case of the latter, you will have to grind a plate about 2 cm thick under the front driveshaft, and also move the main cooling radiator a little forward. The 1KZ-TE is one of the best Japanese diesel engines, and soon after its release, it replaced the older 2LT engine. The three-liter 1KZ-TE has a cast iron block, maximum torque is available from 2000 rpm, and power is about 130-140 horsepower. It has 2 valves per cylinder, and the average consumption is around 7 liters!

The disadvantages include: the use of an electronic injection pump, which is undoubtedly a disadvantage in terms of reliability. When replaced, such a high-pressure fuel pump will cost you a very significant amount, so it is recommended to take an older variation of the 1KZ-T engine with a mechanical high-pressure fuel pump. A complex timing system along with flat pistons (without grooves for the valves) also do not add to its reliability, because if the belt breaks, the pistons with a 99% probability will meet the valves, resulting in expensive repairs.

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