The original engines on KamAZ dump trucks often fail and have a shorter service life than foreign counterparts. It will be much more efficient to replace the original engine with a MAN power unit.
Replacement is simple, but it is necessary to know certain subtleties, so we advise you to contact the appropriate service. We are also ready to replace these engines.
We offer high-quality MAN engines, we bring several units a week from Poland, we carry out all the necessary checks, including in the field - we dismantle and give all the necessary guarantees.
The price can be very different, it all depends on the mileage and condition. On average - 250,000 rubles for a complete set with attachments. Ready to advise on all issues
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Special equipment from the Russian manufacturer KamAZ is traditionally in demand in the domestic market. Inexpensive, easy-to-use and universal-to-use dump trucks and trucks from this manufacturer are successfully used in cargo transportation and construction, they are also indispensable in industry, in demand in housing and communal services and other sectors of the national economy.
Installation of the MAN engine on KamAZ
In recent years, the quality of the cars offered by this Russian manufacturer has improved significantly, but still today it does not reach the best European models. First of all, this applies to power units that do not provide heavy vehicles with the necessary fuel-efficient and dynamic performance. The reliability of basic KAMAZ engines, especially the 740 series, does not meet the requirements of the time, so many KAMAZ owners decide to install a MAN engine on their special equipment.
By 500 thousand kilometers, the base engine will require a major overhaul, the cost of which will be comparable to the purchase of a new power unit. Many prudent car owners decide not to repair the existing engine, but to replace the power unit with German Man engines. Such motors are offered by us at affordable prices, they are reliable, while their installation on KamAZ is carried out without any particular difficulty.
Power units from MAN with little or no modification and use of any additional equipment can be easily installed on KamAZ trucks of various models.
The advantages of such power units include the following:
- 1. versatility of use;
- 2. excellent fuel efficiency;
- 3. simplicity of design and reliability;
- 4. ease of service and repair.
Due to the excellent fuel efficiency, such German engines consume a minimum of fuel, which reduces the operating costs of equipment, respectively, the car owner will be able to offer his customers low prices for transportation and get maximum profit by quickly recouping the cost of modernizing special equipment.
Modern engines from MAN, which are installed on KamAZ special equipment, are reliable power units that are made using powerful turbines, and all engine operation is controlled by automation. Despite the widespread introduction of automatic systems, the maintenance and operation of such an engine is not particularly difficult. The motor easily consumes Russian diesel fuel, so there are guaranteed no problems with fuel.
How to install a MAN engine on KamAZ
Maintenance of equipment is not difficult and involves only a regular oil change. The first revision of the engine can be performed at 100,000 kilometers. Subsequently, this engine will not require any serious maintenance, and major repairs may be required only on a run of a million kilometers or more. Even under the conditions of significant loads and the Russian climate, KAMAZ vehicles with MAN engines installed on them have proven themselves from the best side, they are distinguished by reliability, ease of maintenance and repair.
You can easily pick up Man engines, which are made with in-line and V-shaped layout, which allows you to install such motors on both light trucks and heavy truck tractors. Power units are fully optimized for their installation on KAMAZ, which greatly simplifies engine replacement.
Installing a MAN engine on KamAZ is not difficult. You can perform such work both in the conditions of the service, and independently with the appropriate special lift. The motor can be easily connected to the standard fuel system and exhaust manifolds, and no major modification of the existing technical stuffing is required.
The advantage of our offer
In our company, you will be offered inexpensive MAN engines that can be installed on special equipment from the manufacturer KamAZ. The available choice of such power units will allow you to choose them for various modifications of trucks, we guarantee the excellent quality of engines, invariably offering them at affordable prices.
Our specialists, having the relevant experience, can recommend you one or another model of the MAN engine, which will best suit your existing KAMAZ freight transport. We deliver engines in the shortest possible time, thanks to our prices you can save a lot, and the presence of a quality guarantee allows you to be completely confident in the correct choice.
A little history and let's remember: how it all began and which KAMAZ engines are the most relevant today.
Over the entire period of its existence, the KAMAZ truck was equipped with three power units: the native eight of the 740 series, the American and German Daimler. Foreign engines are ordinary sixes lined up in a row, like the new R6 expected by everyone. Six-cylinder engines are most in demand in the production of trucks. And more recently, the 740th was considered one of the best! Let's remember.
Exactly 50 years ago, ZIL began to create new ZIL-170 trucks with two rear drive axles (6x4). The first-born was assembled in 1969 and its mass assembly was entrusted to a new car plant on the Kama River in Tatarstan. At that time, the future auto giant was in the final stages of construction.
New KAMAZ R6 engine preparation for production
The first KAMAZ-5320 rolled off the conveyor belt back in 1967. By the way, this is the same 170th ZIL. The truck was equipped with a Yaroslavl YaMZ 740 engine with a volume of 11 and a half liters and a power of 180/210 horses. The first KAMAZ diesel engines began to be produced in 1975, which was the beginning of the birth of the 740th series. So what's good about this unit?
- this is the first diesel engine of the Soviet era, into which they began to pour antifreeze, and not plain water. To regulate the temperature, a thermostat was installed on the engine, and the radiator cooling blades began to rotate using a hydraulic drive. Technological innovations at that time were considered: a closed oil cleaning system with a centrifuge, and a crankshaft made of nitrided steel, and even valve guides made on the basis of cermet.
Of course, over the entire period of its existence, the motor has undergone modernization more than once. But it is impossible to remake everything and it is better to create something new. In addition, the constant forcing of the engine became an expensive undertaking, and therefore of little use. Moreover, the strict Euro-5 standards, which absolutely did not suit the 740th diesel engine with 8 cylinders. must meet all standards. In general, the time has come to create a completely new engine for the KAMAZ brotherhood.
But why? After all, there are a lot of high-quality sixes in the world. And coming up with something completely new is very expensive and time consuming. Therefore, the specialists of the KAMAZ plant decided to find a basis for a new diesel engine from other truck manufacturers, with which the auto giant has long-established partnerships.
Why the KAMAZ R6 engine and what does Liebherr have to do with it?
A little earlier, I already said that the newly-made KAMAZ engine must meet all the requirements of EURO-5, and taking into account long-term operation, also EURO-6. But it's not easy for an 8-cylinder V-engine to meet these regulations. Indeed, to fulfill all the conditions, it is necessary to install a turbocompound. An interesting name for a device unknown to many. So what is it?
In a conventional diesel engine, 30-40% of heat is wasted along with exhaust gases. But this is additional energy and it needs to be made to work somehow. But how? Scania is the first company to tackle this problem. In 1961, for the first time in the world, she mounted a turbocharger on one of her engines. Most drivers are familiar with this device and how it works: this is when exhaust gases help get more air into the combustion chamber. The efficiency of the engine increased by an order of magnitude, but this was not enough. And then the turbocompound was invented.
Here the principle of operation is somewhat different. The main goal: through a hydraulic coupling using a reduction gear, transfer directly to the energy of the exhaust gases. That is, the released gases, before flying out into the atmosphere, spin up the fluid coupling. And she, in turn, with the help of the speed increased by the gearbox, makes the flywheel screwed on spin. Everything seems to be simple, but only in words. But in fact: much more serious and more complicated. But more about that another time. In general, one thing pleases that this turbocompound is a rather effective and necessary thing. In addition to increasing efficiency, all the requirements of not only the current EURO-5, but also the future EURO-6 are met.
Auto giants such as SCANIA and VOLVO, which have been installing turbocompounds on the engines of their cars for a long time, proved to other truck manufacturers that it is necessary to install a new device. But there is one problem: the V8 exhaust system is a rather complicated thing and the installation of a turbocompound block is rather difficult and useless from a technical point of view. In addition, it is very expensive and bulky. But the in-line engine is the most suitable option, there are no problems with the installation of a miracle invention, and the cost is much easier (the P6 does not require the installation of balance shafts that reduce the efficiency of the motor). So all the arguments in the correctness of the in-line engine. And a few words about the German truck manufacturer Liebherr.
Liebherr is an old partner of KAMAZ. Back in Soviet times, back in 1973, German specialists helped set up a separate production line for the production and assembly of . The collaboration with Liebherr continues to this day. In addition, it is quite profitable and promising. Moreover, gas-diesel engines with a capacity of 900 liters are installed on the current KAMAZ. With.
Let's remember! What is under the cabin of the Dakar 4326? That's right: Liebherr. So, an excellent reputation and not high demands helped the management of the KAMAZ plant to solve the problem with the choice. The Liebherr D946 was taken as the basis for armament. A copy is not a copy, but the new P6 is a joint development of both automakers. So what will be the engine of the future from Naberezhnye Chelny?
Design of new KAMAZ engines
And now, the most interesting: structural innovations and key moments in the assembly of a new engine in the latest history of KAMAZ. But first, we note that the future P6 is two completely different motors.
The first thing to know is the diesel engine, in which the ignition of the combustible mixture occurs during compression. The new engine has a compression ratio of 18. Fuel injection is carried out directly into the piston, since the combustion chamber has become located in it. Taking into account this characteristic, the piston diameter increased to 130 mm, pistons with a diameter of 120 mm were installed on the 740th. The piston stroke on the new KAMAZ engine has also increased: from the classic 130 mm to the new 150 mm. Motors with such a piston distance are called "long-stroke". It should be noted here that the reduction in the number of cylinders did not affect the reduction in working volume, since the piston itself increased in diameter.
The cooling system remained at the same level: liquid, with a volume of 20 liters, with forced circulation. There are no innovations in the pressurization system either - it is still the same gas turbine, in which one-stage pressurization of the air medium and air / air cooling are carried out. The KAMAZ engine lubrication mechanism is complex with an air-oil cooler, a double filter and a gear oil supply pump.
It should be noted that such components as: injection pump, ECU and injectors are completely manufactured at Liebherr factories.
Therefore, the fuel system, today, remains 25% dependent on foreign suppliers, since the turbocharger assembled by the Germans must be added to the elements already mentioned. The remaining items are manufactured either in the production workshops of the KAMAZ automobile enterprise, or are purchased to order from domestic manufacturers.
In the factory workshop for the manufacture of engines, trial attempts have already been made to cast the cylinder block. Now both the "snail" for the coolant and the mounting flanges for the oil cooler with an air compressor will be cast on the block. There are attachment points for high pressure fuel pumps. Also, equipped with additional stiffeners. For what? Let's clarify.
Since the original Liebherr D946 is a heavy unit (mainly used in construction equipment and stationary generators), the P6 should have less weight. Consequently, lighter, but brittle, alloys are used in the casting. And the rigidity must meet all the requirements necessary for operation.
Power of in-line KAMAZ engine
The new KAMAZ engine will be 1.5 times more powerful than the classics. Yes, the 740 engine has the ability to boost, but then you have to use expensive technologies, and this, in turn, will affect the final cost.
The P6 will be equipped with a personal head of the KAMAZ engine block, which will greatly simplify the repair.
The KAMAZ crankshaft will also go through a small upgrade. The crankshaft journals, connecting rods with the main ones, will undergo mandatory high-frequency processing. The top piston and oil scraper rings will be chrome-plated with applied diamond grit, while the bottom piston ring will remain completely unplated.
The oil pump device will completely change. Now the oil will be supplied to the main components of the KAMAZ engine and its parts much faster.
Assembly speed of KAMAZ engines
For the future assembly of P6, KAMAZ is installing a new friction roller conveyor. The transport route of the block will pass through 34 stopping points, which provide for: manual assembly, semi-automatic and automatic assembly modes. What, where and how we will analyze separately.
Automation will take over the functions of controlling the efforts of turning the crankshaft, as well as the action of applying sealed materials to the joints of the body elements. She will perform the same quality control of combined parts.
Semi-automatic machines will control air leakage through the valves of the injection and exhaust systems. They will also check for tightness and all the systems involved in the operation of the engine, which are necessary for normal functioning.
The rest will be collected manually. At the same time, it is planned to use electric / pneumatic tools for threaded connections. These works will be carried out in several stages and in strict sequence, where the control of the angle of rotation and tightening torque will be carried out.
The final stage of production is the test of the KAMAZ engine at the stand. A new stand is being prepared for testing the motor, on which full piping will not be carried out. Filling with oil and final assembly will take place outside the stand, which will significantly save test time. Before testing and hitting the stand, and will be connected. At the stand, only ECU programming with further testing and running-in of the KAMAZ engine with diagnostics of all systems involved in operation will remain. And also, fuel consumption calculations, measurement of operating temperature and pressure in the lubrication system, determination of nominal and maximum values of crankshaft rotation.
Quality control will be carried out by the QDM management system. It can collect all available data on the newly-made KAMAZ engine. This is both the date of manufacture with a serial number, and the tightening torque of the threaded connections with the procedure. All information obtained in this way will be stored in an electronic database and archived in a special assembly card in electronic form, which will later be stored in the computer archive of the enterprise. So, the assembly history of the KAMAZ R6 engine can be read at any time.
The conveyor will operate at a speed of 4 m per minute, which will make it possible to produce 12,000 KAMAZ engines in the first working year. The assembly of one P6 will take a little over 14 minutes. In the future, it is planned to mass-produce 30,000 copies, despite the fact that the manufacturing time of one motor will be reduced to 5 minutes.
The start of the mass assembly of the R6 is scheduled for 2019, although work on the new KAMAZ engine is already nearing completion. At the same time, work is underway to update the cabin, since the P6 cannot be installed on classic forms. Most likely, the appearance of the updated KAMAZ will be very different from the previous one. In the meantime, we can only wait and continue to ride on time-tested old cars.
You can in our company.
KAMAZ engine.
Many often ask what engines are put on KAMAZ and whether they can be replaced with another model. This section presents the main models of engines that have been installed and are being installed on all production cars. Produced by JSC Kama Automobile Plant. If you cannot decide on a model, then contact our specialists. For a faster response, please provide the following information:
truck model
year of issue
chassis number
VIN number of the car
complete number of the power unit
This information will help the employee of our company. Promptly answer all questions. And choose for your car exactly the engine model that is installed. If you decide to buy an engine from DST-AVTO LLC, then this is the right choice. Our consultants will always be able to help you.
Previously, KAMAZ vehicles and partially URAL vehicles were equipped with engines manufactured by KAMAZ OJSC. The environmental class of KAMAZ engines is Euro 0, Euro 1, Euro 2. Starting from October 29, 2006, a ban was introduced on the production of cars with an environmental class lower than Euro 2. From January 1, 2008, after the introduction of Euro 3 standards, engines of the Euro environmental class began to be installed on these models 3. It is not difficult to get lost in this volume of KAMAZ engine modifications. And since January 01, 2013, new Euro 4 standards have been introduced. This does not mean that it is necessary to replace Euro 0, Euro 1 and Euro 2 class engines with Euro 3 and Euro 4. But, if the standard engine on your car fails, it is possible to purchase an assembled engine with modified parameters in terms of power and or in terms of environmental class. When installing this engine on a car, you can make changes in the vehicle passport (PTS) and, accordingly, replace the registration certificate. There will be changes such as model, serial number, and its environmental class. This will allow you to operate your truck for a longer time. Also, your car will be able to enter the restricted zones according to the environmental class, where previously you could not work because the environmental standard of your dump truck or flatbed or truck tractor did not correspond to the permitted one. Naturally, to enter these data into the PTS and STS of the vehicle, it is necessary to replace it at a service station. She will also be able to issue you a document (application-declaration) confirming the performance of the work performed and the compliance of the installed KAMAZ engine with the Ecological class.
Also, KAMAZ engines can be selected for the following characteristics. By engine power from 210 to 400 hp. By the presence (absence) of TKR (turbocharger). According to the model (high-pressure fuel pump brand) YAZDA (Yaroslavl) or BOCSH (Germany). By configuration with attachments (starter, generator, compressor) or without attachments. Many people purchase a KAMAZ engine complete with a complete gearbox (power unit). This becomes relevant if the car is old enough and in addition to replacing the engine, it is also necessary to repair the KAMAZ gearbox.
In some cases, replacing the power unit assembly is more cost-effective than replacing the engine and repairing the gearbox. This is due to the fact that when removing the power unit and troubleshooting it, many clutch parts are recommended to be replaced due to their wear. Also, when disassembling the gearbox (in the case of its long-term operation), many parts are likely to require replacement. Repair of a gearbox can at its cost approach the cost of a gearbox assembly. All KAMAZ engines have a factory warranty which is equal to 1 year or 45,000 km of run during routine maintenance for the installation and subsequent maintenance of the car at a certified station with indications of maintenance marks. If the client independently installed the power unit on the car, he must contact the nearest (convenient) service center for him to check the sealing of the speedometer drive, speedometer and check its performance. This is necessary to confirm the warranty case if a defect occurs during operation.
We can also organize the delivery of spare parts such as the cab and frame from the warehouse to your territory, or the territory of the service, where you carry out repairs to replace the above spare parts. Power unit.
Once again, we ask you to treat the requested information with understanding. Here are just a small part of KAMAZ engines with and without the possibility of interchangeability.
| Automobile model | Previously installed engines | Engines currently installed |
|---|---|---|
| 5320 | 740.10-210 7403.10-260 7406.10-220 |
|
| 53212 | 740.10-210 7403.10-260 7406.10-220 |
Vehicle discontinued |
| 53215 | 740.11-240 740.13-260 740.31-240 |
740.31-240 |
| 53228 | 740.31-240 | 740.31-240 |
| 53229 | 740.31-240 | Vehicle discontinued |
| 5410 | 740.10-210 7403.10-260 7406.10-220 |
Vehicle discontinued |
| 54112 | 7406.10-220 740.11-240 |
Vehicle discontinued |
| 54115 | 740.11-240 740.13-260 740.31-240 |
Vehicle discontinued |
| 5460 | 740.50-360 | 740.63-400 |
| 55111 5511 |
740.11-240 7406.10-220 740.10-210 740.10-20-220 7403.10-260 |
Vehicle discontinued |
| 6460 | 740.50-360 | 740.50-360 740.63-400 |
| 65111 | 740.30-260 | 740.30-260 740.62-280 740.55-300 |
| 65115 | 740.11-240 740.13-260 |
740.30-260 740.62-280 Cummins 6ISBe 285 Cummins 6ISBe 300 |
| 65116 | 740.30-260 | 740.62-280 Cummins 6ISBe 300 |
| 65117 | 740.30-260 | 740.62-280 Cummins 6ISBe 300 |
The enterprise for the production of KAMAZ vehicles (Kama Automobile Plant) was founded in 1976. This is a Russian company whose main business is the production of diesel trucks. In addition, they produce buses, tractors, combines, power plants and other components. The power plants used on the equipment were developed by the plant's designers, initially the best foreign analogues were taken as a basis.
KAMAZ engines for their unpretentious nature: reliability, durability, simplicity of design and worthy characteristics were highly appreciated by consumers. Today, this is one of the most popular brands of trucks operated both in our region and abroad.
The impetus in the development of the enterprise was given by another plant, ZIL (plant named after Likhachev), until 1956 it was called ZIS (plant named after Stalin). In 1976, by order of the management, all the technical documentation for the development of the ZIL-170 car, which was maintained by the plant, was transferred to KAMAZ. So, the production of the KAMAZ-5320 car began. Until 1980, ZIL developed 9 KAMAZ models, trained the plant staff and eliminated design flaws.
Throughout its history, a huge number of power units have been produced. The KAMAZ 740 series received the greatest popularity. There are several options for power plants of the 740 series, their main differences from each other were compliance with one or another Euro standard.
The motors turned out to be successful, for a long time other manufacturers bought them for installation on their cars. So, from 1979 to 1992, a ZIL car with a KAMAZ engine was produced. These were the following modifications: ZIL-133G2 and ZIL-133VYA (tractor, dump truck and crane) with KAMAZ-740 power plants; ZIL-E133VYAT (tractor) with a KAMAZ-7403 unit.
Key Features of the 740 Series Power Units
The ancestor of the series of engines was the KAMAZ 740 V8 model, the first models of this engine had a volume of 10852 cm 3, while the power was developed up to 210 horsepower. Later models came out with power ranging from 180-360 hp. All KAMAZ power plants run on diesel fuel, the choice in favor of it is not accidental: firstly, less fuel is consumed, secondly, the engine and its parts are better lubricated, and thirdly, the power plant has more power.
A feature of the operation of KAMAZ engines can also be considered such an indicator as an increased compression ratio, compared with gasoline internal combustion engines. So, gasoline power plants have a degree of 8-10 units, while the KAMAZ engine has 17 units. In addition, there are no spark plugs in the engines, this is due to the specifics of the diesel engine. Ignition and combustion in such power plants occurs due to high pressure.
Due to the movement of the piston to the position of the top dead center, the internal volume decreases sharply, there is a jump in the increase in pressure and temperature. This is exactly how a diesel engine works.
In marking its products, the manufacturer uses various designations that are responsible for the type of power plant:
- The V-cylinders of the motor are arranged in two rows, the angle between which is less than 90 °;
- L-cylinders are arranged in two rows, the angle between which approaches 90°;
- R-arrangement of cylinders is in-line.
Power plant KAMAZ 740
The KAMAZ engine of the 740th modification has a number of advantages and features over its competitors:
- The structure of the motor is such that with the same characteristics as those of similar manufacturers, it is much smaller. The motor is a kind of compromise between large, but low-power installations that consume a fairly large amount of fuel, and quite reliable and powerful, economical, but less reliable and hardy.
- The car has become widespread due to the ability to work in low temperatures. In particular, KAMAZ has no problems with launching in the cold season. The motor has a powerful battery and starter, as well as an engine heating system.
- The drive of the gas distribution system, compressors, hydraulic booster, pump: they work by transmitting torque from the motor through gears with straight teeth.
Euro class power plants
The Euro 0 model can be considered the founder of the KAMAZ 740 series engines. This is a very reliable unit with good technical characteristics, high reliability and service life. However, the KAMAZ engine did not comply with environmental safety classes and this was its main disadvantage.
Power plant KAMAZ (Euro 0)
The power plants of KAMAZ Euro 2 were more modern and refined compared to the previous class. At that time, they met all the requirements for the units in terms of environmental safety. There were 4 modifications of the motors, their characteristics are as follows:
Power plant KAMAZ (Euro 2)
| Power plant model | 740.31-240 | 740.30-260 | 740.51-320 | 740.50-360 |
| Power, hp | 240 | 260 | 320 | 360 |
| Crankshaft, rotational speed | 2200 | |||
| Torque, Nm | 980 | 1078 | 1020 | 1147 |
| Cylinders, pieces, location | 8,V | |||
| Cylinder, Ø/Piston, stroke, mm | 120/120 | 120/130 | ||
| Engine, volume, l. | 10,85 | 10,85 | 11,76 | 11,76 |
| Fuel mixture, compression ratio | 16 | 16,5 | 16,5 | 16,5 |
| Cylinders, work | 1,5,4,2,6,3,7,8 | |||
| crankshaft rotation | right | |||
| Engine, weight, gross, kg. | 760 | 885 | 885 | 885 |
| Lubrication system, l. | 26 | 28 | 28 | 28 |
| Cooling system, l. | 18 | |||
KAMAZ Euro 3 power plants were a transitional link between Euro 2 and Euro 4. More modern and popular engines are Euro 4 modification units. KAMAZ engines technical characteristics:
KAMAZ power plants (Euro 4)
In addition, foreign-made power plants were installed on KAMAZ vehicles. They were in no way inferior in performance to our engines, but had a significant drawback in price - they were more expensive. The units have established themselves as reliable, durable, powerful equipment worthy of the user's attention.
All motors of the 740 series have a similar principle of operation. Features include:
- The cylinder block is the main part of the engine, made according to the principle of a single block, all attachments are attached to it;
- The crankshaft is located in the center of the installation, it has a significant shift to the lower part of the motor. Under the crankshaft is a crankcase containing oil. The volume of oil in the engine is about 26 or 28 liters.
- As for the valves - there are 16 of them, two valves per cylinder.
Repair of the KAMAZ 740 engine must be carried out in specialized workshops. The fact is that the maintenance of diesel power plants is complicated by the features of the engines themselves and is not an easy task.
The only thing you can do with your own hands without causing significant harm in the absence of special types of tools is to change the oil and coolant.
Coolant, replacement
The cooling system is a closed liquid type system with forced circulation. The thermal regime is controlled by a thermostat and fluid couplings. The circulation itself occurs due to a centrifugal pump, the process is as follows: first, the left row of cylinders is washed, then the right one.
The coolant passes through the cylinder liners and through the hole into the cylinder head. The heated antifreeze enters the thermostat and, depending on where it determines it, into the water pump or into the radiator.
According to the requirements of the technical regulations, the coolant in the power plant must be changed, depending on the operation, every three or five years. The main indicator of the unsuitability of a liquid for further use is its color. If it has a dirty shade and differs from the original color, further use is unacceptable.
It is necessary to constantly monitor what level of coolant the power plant currently has in order to avoid overheating of the motor. If necessary, add the required amount of liquid, such as Tosol-A40. At each start of the motor, it is desirable to carry out the following actions:
- On a special expansion tank, open the tap and see if the liquid has flowed. If yes, the level is correct. Bring the crane to its original state and start the engine. If not, add coolant until it flows from the faucet. If fluid does not flow, check the faucet and the cooling system as a whole for damage.
- If there is a shortage of coolant, or its absence at all, it is strictly forbidden to start the power plant. By doing this, you can render the impeller unusable, which will entail costly repairs.
- If necessary, replace the liquid due to its unsatisfactory condition: it is necessary to drain the liquid from the lower valve of the radiator, boiler, heater, from the cabin stove pipe. After that, it is necessary to close all the taps and refill the system to the desired level.
Oil change
The power plant is equipped with a combined type lubrication system, oil is supplied to the rubbing parts in various ways, such as: spraying, gravity, under pressure. The unit consists of devices: storage, supply, filtration, oil cooling.
The movement of oil starts from the sump using a pump. It comes through the filter to the oil receiver, then to the pump and to the discharge section. From the section, through the channel, it enters a special oil filter, and then into the highway. The cylinder head and the cylinders themselves are lubricated first, then the crankshaft, gas distribution mechanism, compressor, fuel pump.
Excess grease is removed using oil scraper rings in the cylinders, then removed through the piston channels, lubricating the piston pin bearing. Getting to the power thermal sensor from the main line, with the valve open, including the hydraulic clutch, the oil lubricates and e. If the valve is closed, the oil enters the centrifugal filter and then into the sump.
How much oil is in a KAMAZ engine, what is the frequency of replacement and how to carry out the whole process correctly, everyone who works with brand cars should know the answers to all these questions.
Oil, like all working fluids, have their own replacement intervals. The documentation for each power plant indicates at what mileage it is necessary to carry out a replacement.
To check the oil level in the engine, a special dipstick with a mark is used. At a normal level, the oil will be at the “B” value. If the amount is insufficient, it is required to add lubricating fluid to the required value, otherwise, while working, the engine and its parts will undergo significant wear and early failure cannot be avoided. It is better not to allow an excess of oil, as it can lead to damage to mechanisms with rubber seals.
If necessary, change the oil:
- Start the engine and warm up to 80°C;
- Turn off the engine and unscrew the crankcase drain plug;
- Drain the oil completely;
- Be sure to change filters;
- The centrifugal oil filter must be disassembled and the rotor washed;
- Fill with oil up to the “B” mark on the dipstick;
- Start the power plant and let it idle for 10 minutes;
- Stop the engine, let the oil settle (about 10 minutes) and add the required amount to the “B” mark.
Disadvantages and typical breakdowns of power plants
Repair of KAMAZ engines does not bring much trouble to the owner, if strictly observed, the maintenance schedule and carried out in accordance with passport recommendations. So, it is necessary to carry out regular maintenance of the main components, change working fluids, adjust thermal clearances, and change filters on a regular basis, with a set frequency.
If serious breakdowns could not be avoided, as a recommendation, it is better to repair the KAMAZ engine by qualified specialists, since special equipment and stands are required to perform all the necessary work.
The main malfunctions of power plants include:
- The power plant does not start. There may be air in the fuel supply system. It is necessary to identify the cause of the appearance of air, bring the system into a sealed state and pump fuel.
- The motor won't start. It is possible that the fuel injection advance angle is violated. The lead angle needs to be adjusted.
- The engine does not start at sub-zero temperatures. Water entering the fuel pipes or on the fuel intake grid and its subsequent freezing. It is necessary to warm up the fuel filters, tanks and pipes with hot water in order to melt the frozen liquid.
- Uneven operation of the power unit, the motor vibrates strongly, does not hold idle speed, power failures with increasing speed. A possible cause is clogged injectors. To eliminate the malfunction, it is necessary to flush the nozzles on a special stand.
