The YaMZ-236 engine is one of the few power units that has gained popularity not only in the vastness of the domestic automotive market, but also far abroad. Thus, some Chinese heavy-duty tractors are operated with this power unit. The engine is widely used and is installed not only on trucks, but also on all-terrain vehicles, as well as military equipment.
Historical aspect
The YaMZ 236 motor was developed in 1951 on the basis of the YaAZ 204 and YaAZ 206 power units. The production of these internal combustion engines was carried out by the Yaroslavl Motor Plant, which later became Avtodizel OJSC.
Assembly shop of the Yaroslavl Motor Plant.
During the installation and modernization process, YaMZ engines began to be permanently installed on MAZ, URAL, KRAZ trucks, K-700 tractors and some military equipment, especially tanks and all-terrain vehicles.
Technical characteristics and device
The technical characteristics of the YaMZ 236 engine have not changed much since the start of engine production. Only some technical and design elements have been added, such as turbocharging, power supply or exhaust gas systems.
Technical characteristics of the YaMZ 236 motor.
The main technical characteristics of the internal combustion engine 236 YaMZ.
Name | Characteristic |
Diesel, turbocharged diesel |
|
11 liters (11,150 cm3) |
|
Configuration, parameter | V-shaped |
Number of cylinders | |
Number of valves | |
Econorm | from Euro-0 to Euro-4 |
Cylinder diameter | |
Compression ratio | |
Cooling | Liquid |
Valve mechanism | |
Material of block and head | |
800,000 - 1,000,000 km |
|
Diesel fuel |
|
Cylinder operating order | |
Applicability | MAZ, KRAZ, URAL, T series tanks, K tractors, LAZ buses, CHETRA all-terrain vehicle and more |
Motor modifications
At different times, there were different modifications of engines manufactured by the Yaroslavl Motor Plant. So, what types can be found on cars:
Engine YaMZ 236.
- YaMZ-236G - 150 hp. (110 kW) at 1700 rpm.
- YaMZ-236DK - 175 hp. (129 kW) at 2100 rpm, 667 N m (68 kgf m) at 1400 rpm.
- YaMZ-236ND - 210 hp. (154 kW) at 1900 rpm, 882 N m (90 kgf m) at 1300 rpm.
- YaMZ-236N - 230 hp. (169 kW) at 2100 rpm, 882 N m (90 kgf m) at 1300 rpm.
- YaMZ-236BK - 250 hp. (184 kW) at 2000 rpm, 1030 N m (105 kgf m) at 1200 rpm.
- YaMZ-236B - 250 hp. (184 kW) at 2000 rpm, 1030 N m (105 kgf m) at 1300 rpm.
- YaMZ-236BE2 - 250 hp. (184 kW) at 2000 rpm, 1078 N m (110 kgf m) at 1200 rpm.
- YaMZ-7601 - 300 hp. (220 kW) at 1900 rpm, 1275 N m (130 kgf m) at 1200 rpm.
Applicability
YaMZ 236 engines have become quite widely used. Thus, about two dozen brands and more than 40 models of cars, buses, military vehicles and construction equipment are still equipped with legendary engines.
URAL with YaMZ 236 engine.
The URAL-4320 with the YaMZ 236 engine has become quite popular. In addition to this brand of engine, there is also an older brother - the YaMZ-238. This motor is much more powerful, and therefore is installed on heavy construction equipment, tractors, and even strategic military vehicles.
Why have YaMZ engines become widespread? Unlike their Western counterparts, domestically produced power units are quite easy to repair and do not have a large amount of electronics, which makes repairs possible in the field.
Also, the motors have the necessary power so that the vehicle can pull a load even in the most difficult conditions. For example, sand that gets into the fuel system is not a hindrance, and it is easily removed from the engine.
So, let's look at which vehicles the YaMZ-236 power unit can be found on:
- The first in line, of course, are MAZ cars. The engines can be found on such models as: 500, 503, 504, 509, 516, 5335, 5549, 5551 and others.
- The second most widely used vehicle is the KRAZ: 255, 250, 257, 260 and 6322.
- Also installed on URAL series vehicles: 4320, URAL 5323.
- Also, the YaMZ-236 engine was also used on KAMAZ. So, the model 5320 was equipped from 1976 and 2000.
Service
Maintenance of the YaMZ 236 engine is identical, as for all identical domestically produced diesel engines. Thus, service intervals are carried out every 15,000 km for the basic version, and for a turbodiesel - every 20,000 km.
The maintenance process is slightly different from regular gasoline engines. Each maintenance is a whole complex of operations aimed at maintaining the technical condition of the car. What is included in the maintenance of YaMZ 236 series engines:
T-150 with YaMZ 236 engine.
- Change of oil.
- Valve Mechanism Adjustment
- Replacing filters. So, depending on the engine modification, the following filter elements may or may not be present: a fine and coarse oil filter, a filter element for coarse and fine fuel purification, an air filter, an eco-filter for exhaust.
- Cleaning the injectors.
- Adjustments related to the high pressure fuel pump.
- Other operations aimed at maintaining the power unit.
Repair
Repair of the YaMZ 236 engine is carried out quite standardly for the entire series of engines produced by the Yaroslavl Motor Plant. Thus, in-line repair work is carried out directly on the car.
Depending on the make, model and design features of the vehicle on which the engine is installed, even major repairs can be performed without removing the power unit. Moreover, this is a condition that no boring is required.
The process of overhaul of YaMZ 236.
Often, if a restoration or major overhaul is underway, the engine is bored. As recent practice shows, most old cylinder blocks are not subject to boring and honing, and therefore they undergo a liner process. The block heads are quite durable, which makes it possible to go through them not often, but when overhauling, this is a mandatory procedure.
Another element with a modest lifespan is the oil pump. It is this that is often changed even before a major restoration of the power unit is carried out. Along with this part there is a water pump, which is unbearable and, as practice shows, quickly fails. But there is a way out - installing a repair kit, which is quite cheap.
Conclusion
The YaMZ 236 engine is a legend in the domestic production of diesel engines. So, there are many modifications of this power unit. The applicability of motors from the Yaroslavl Motor Plant is quite wide. It gained fame as a reliable and inexpensive power unit, not only in the CIS, but also in China.
The YaMZ-236NE, YaMZ-236NE2, 236BE, 236BE2, 7601.01 engines and their configurations are six-cylinder diesel engines with a V-shaped cylinder arrangement and gas turbine supercharging.
SPECIFICATIONS
| Model | YaMZ-236NE | YaMZ-236BE | YaMZ-236NE2 | YaMZ-236BE2 | YaMZ-7601.10 |
|---|---|---|---|---|---|
| Number of cylinders | 6 | 6 | 6 | 6 | 6 |
| Cylinder diameter, mm | 130 | 130 | 130 | 130 | 130 |
| Piston stroke, mm | 140 | 140 | 140 | 140 | 140 |
| Cylinder displacement, l | 11,15 | 11,15 | 11,15 | 11,15 | 11,15 |
| Compression ratio | 16,5 | 16,5 | 16,5 | 16,5 | 16,5 |
| Rated power, kW (hp) | 169 (230) | 184 (250) | 169 (230) | 184 (250) | 220,6 (300) |
| Crankshaft rotation speed at rated power, rpm, no more | 2100 | 2000 | 2100 | 2000 | 1900 |
| Maximum torque, Nm (kgfm) | 882 (90) | 1030 (105) | 882 (90) | 1078 (110) | 1274 (130) |
| Crankshaft rotation speed at maximum torque, no more than, rpm | 1200-1400 | 1200-1400 | 1100-1300 | 1100-1300 | 1100-1300 |
| Idle speed, no more than, rpm | |||||
| - minimum | 550-650 | 550-650 | 550-650 | 550-650 | 550-650 |
| - maximum | 2275 | 2175 | 2275 | 2175 | 2150 |
| Specific fuel consumption, g/kW h (g/hp h): | |||||
| - at rated power | 227 (167) | 227 (167) | 230 (169) | 223 (164) | 215 (158) |
| - minimum at a rotation speed of 1300±200 rpm | 206,7 (152) | 206,7 (152) | 197 (145) | 197 (145) | 197 (145) |
| Weight of unfuelled engine, kg: | |||||
| - without clutch and gearbox | 980 | 980 | 985 | 985 | 985 |
| - with clutch and gearbox | 1275 | 1380 | 1280 | 1385 | 1385 |
Mixing method: Direct injection.
Fuel supply equipment: Split type.
High pressure fuel lift pump: Six-plunger (in-line or V-shaped)
Speed controller: Mechanical, all-mode with boost corrector.
Injectors: Closed, with multi-hole spray.
Injection advance clutch: Automatic, centrifugal type.
Fuel filters: Two, coarse cleaning (2 pcs.) and fine cleaning with two replaceable paper filter elements.
Turbocharger 122.1118010-07: The turbine is radial, centripetal; centrifugal compressor.
Lubrication system: Mixed, under pressure and spray, with oil cooling in a liquid-oil heat exchanger. In addition, oil is supplied through a system of channels and pipelines for jet cooling of the pistons.
Oil filters: Two, full-flow (with a replaceable filter element) and a centrifugal filter.
Oil pump: Single-section gear type.
Cooling system: Liquid, closed type, with forced circulation of coolant.
Starting device: Starter 2501.3708-01 (use of ST-142D starter is allowed). To facilitate starting a cold engine, an electric torch device is installed.
Generator: Alternating current. Models: 1322.3771 for MAZ, Ural vehicles; 959.3701 for Ural vehicles; 1702.3771 for KrAZ vehicles; 6582.3701-03 for buses.
Clutch: Single-disk, dry, friction, with an extension-type diaphragm spring. Models: YaMZ-182 for YaMZ-236NE, YaMZ-236BE, YaMZ-236NE2, YaMZ-236BE engines; YaMZ-183 for the YaMZ-7601.10 engine.
Gearbox for YaMZ-236NE and YaMZ-236NE2 engines: Mechanical five-speed gearbox with synchronizers in 2-3 and 4-5 gears. Models: YaMZ-236P3 or YaMZ-236P4 for MAZ vehicles; YaMZ-236L1 for buses; YaMZ-236U3 for Ural cars.
Gearbox for engines YaMZ-236BE, YaMZ-236BE2 and YaMZ-7601.01: Mechanical eight-speed gearbox with synchronizers in all gears except reverse with planetary range shifters. Models: YaMZ-238VM5 or YaMZ-238VM7 for MAZ cars and buses; YaMZ-238VK7 for KrAZ vehicles.
YaMZ-236 is one of the most common Soviet-made diesel engines. It is a four-stroke six-cylinder 12-valve diesel engine with a wide range of applications. Along with the titles of one of the most versatile and popular, this engine has also earned a reputation as the most reliable and “problem-free” of domestic diesel engines. It can be found on such famous cars as MAZ, KRAZ, URAL, ZIL, as well as on K-700 tractors. The closest associates of this model are the YaMZ-238 with 8 cylinders and the YaMZ-240 with 12 cylinders. YaMZ-236 has many modifications with different amounts of horsepower.
Technical characteristics of YaMZ 236
Engine type: diesel, dimensions D*S=130*140 mm, displacement 11.15 l, 6-cylinder, V-shaped cylinders, four-stroke with compression ignition, direct fuel injection, turbocharging, liquid cooling, intercooling charge air in an air-to-air heat exchanger installed on the vehicle.| Model | YaMZ-236BE2-1 | YaMZ-236BE2-2 | YaMZ-236BE2-6 | YaMZ-236BE2-8 | YaMZ-236BE2-9 |
|---|---|---|---|---|---|
| V6 | |||||
| Cylinder diameter, mm | 130 | ||||
| Piston stroke, mm | 140 | ||||
| Cylinder displacement, l | 11,15 | ||||
| Compression ratio | 17,5 | ||||
| Power, kW (hp) | 184 (250) | ||||
| Rotation speed, rpm | 2000 | ||||
| 1078 (110) | |||||
| 1100-1300 | |||||
| 197 (145) | |||||
| Clutch | YaMZ-182 | YaMZ-182 | |||
| checkpoint | YaMZ-238VM7 | YaMZ-238VM7 | YaMZ-238A5 | ||
| Dimensions, mm | 2180×1045×1070 | 1250×1045×1140 | 2110×1045×1070 | 2380×1045×1070 | |
| Weight, kg | 1385 | 985 | 1380 | 1420 | |
| injection pump | 133.5-10 | ||||
| Generator, model | 1322.3771 | 6582.3701-03 or 3112.3771 | 1322.3771 | ||
| Applicability | Onboard vehicles, chassis, truck tractors, dump trucks MAZ-533603, MAZ-630303, MAZ-543203, MAZ-543403, MAZ-551603 and their modifications | MAZ cars | Chassis MZKT-8022 | Cars, chassis MAZ-533603-224; dump truck MAZ-551603-242 | MAZ cars |
| Model | YaMZ-236BE2-11 | YaMZ-236BE2-19 | YaMZ-236BE2-21 | YaMZ-236BE2-22 |
|---|---|---|---|---|
| Number and arrangement of cylinders | V6 | |||
| Cylinder diameter, mm | 130 | |||
| Piston stroke, mm | 140 | |||
| Cylinder displacement, l | 11,15 | |||
| Compression ratio | 17,5 | |||
| Power, kW (hp) | 184 (250) | |||
| Rotation speed, rpm | 2000 | |||
| Maximum torque, Nm (kgfm) | 1078 (110) | |||
| Frequency at maximum torque, rpm | 1100-1300 | |||
| Minimum specific fuel consumption, g/kW h (g/hp h) | 197 (145) | |||
| Clutch | YaMZ-182 | YaMZ-182-15 | YaMZ-182-15 | YaMZ-182-15 |
| checkpoint | YaMZ-238VM1 | YaMZ-2381-26 | YaMZ-2381-07 | YaMZ-2381-06 |
| Dimensions, mm | 2180×1045×1070 | 2180×1045×1140 | 2180×1045×1070 | |
| Weight, kg | 1385 | |||
| injection pump | 133.5-10 | 133.5-30 | ||
| Generator, model | 1322.3771 | 6582.3701-03 or 3112.3771 | — | — |
| Applicability | Cars, chassis MAZ-533603-240, MAZ-630303-245 | Chassis MZKT-8022-020 | Chassis MAZ-533603-240, -630303-245 | MAZ vehicles: flatbed, chassis, sed. tractors, dump trucks MAZ-533603, -630303, -543203, -543403, -551603 and their modifications |
| Indicator name | YaMZ-236M2 | YaMZ-236G | YaMZ-236D | YaMZ-236DK |
| Number and arrangement of cylinders | V6 | |||
| Cylinder diameter, mm | 130 | |||
| Piston stroke, mm | 140 | |||
| Cylinder displacement, l | 11,15 | |||
| Rated power, kW (hp) | 132 (180) | 110 (150) | 129 (175) | 136 (185) |
| Rated rotation speed, min-1 | 2100 | 1700 | 2100 | 2000 |
| Maximum torque, N.m (kgf.m) | 667 (68) | - | 667 (68) | 716 (73) |
| Rotation speed at maximum torque, min-1 | 1250-1450 | - | 1300-1500 | 1300-1500 |
| Minimum specific fuel consumption, g/kWh (g/l.h.) | 214 (157) | - | - | - |
| Specific fuel consumption at rated power, g/kWh (g/hp.h) | 227 (167) | 220 (162) | 220 (162) | 220 (162) |
| Oil consumption for waste, % of fuel consumption, no more | 0,5 | 0,5 | 0,5 | 0,5 |
| Lifetime before major repairs, hour | 10000 | 8000 | 8000 | 8000 |
| Weight of unfuelled engine, kg | 890 | 890 | 990 | 1090 |
Cylinder block/crankcase
The main body part of the engine is its crankcase, which is a special spatial casting made of low-alloy gray pearlitic cast iron. This casting is processed using the “artificial aging” method in order to eliminate thermal stress and maintain precise geometric shapes during operation. The cylinder liners, machined into the block, are thick-walled and centered along two concentric bores in the block plates at the top and bottom. The row of cylinders on the right is shifted relative to the opposite one by thirty-five millimeters to accommodate two connecting rods on a common crankpin.
Each of the cylinder nests is equipped with two coaxial cylindrical holes made in the upper and lower plates of the block. The top plate also has ring grooves for sleeve collars. On the inner walls of the cylinder block there is a system of oil channels that serves to continuously drain lubricant to the camshaft and crankshaft bearings, the oil filter and the liquid-oil heat exchanger.
Cylinder head of the YaMZ-236 engine
The cylinder head of the basic Yaroslavl diesel engine is a solid cast iron, attached to the cylinder block with heat-treated chrome-nickel steel studs. To ensure the removal of excess heat, the cylinder head is equipped with a separate water jacket, shared with the water jacket of the entire block. Inside the cylinder head there are pressed valves equipped with springs and fastening parts; as well as rocker arms with axles and injectors. The valve seats are plug-in, made of special cast iron and heat-resistant alloy. The saddles are pressed into the sockets with tension. The joints of the cylinder head, block and liners are sealed with one sandwich gasket, common for three cylinders.Crankshaft of the YaMZ-236 engine
The crankshaft of the YaMZ-236 engine is made of 50G steel using the hot stamping method. The crankshaft journals are hardened by heating with high-frequency currents. There are four main supports of the crankshaft, three connecting rod journals. The connecting rod journals have additional internal cavities in which the oil is subjected to centrifugal cleaning. Counterweights are installed on the cheeks of the crankshaft, together with which it is installed and adjusted (balanced). Axial fixation of the crankshaft in the engine is ensured by four bronze half-rings mounted in the recesses of the rear main support. The toe and shank of the crankshaft are sealed with special self-tightening seals made of reinforced rubber.Flywheel on YaMZ-236
The flywheel of the basic Yaroslavl engine is cast from gray cast iron. It is attached to the rear end of the crankshaft with bolts made of special alloy steel. These bolts are protected from spontaneous rotation by locking plates. The flywheel is equipped with a steel ring gear to start the engine with a starter. The crown is secured to the front end of the flywheel with twelve bolts, secured with special flap washers.
12 radially located holes on the flywheel are designed to rotate the crankshaft when making engine adjustments. The shape and location of the cavities at the front end of the flywheel provide the directional imbalance necessary for the balancing system. The flywheel balancing process is carried out separately from the crankshaft, so all flywheels are interchangeable.
YaMZ-236 engine connecting rod
The connecting rod is made of forged steel “40X”, has an I-section; the connector of its lower head is oblique, at an angle of 55 degrees. Replaceable liners are installed in the lower head of the connecting rod, and a steel/bronze OCS bushing with an outer diameter of 56 mm is pressed into the upper head. In the upper connecting rod heads of the YaMZ-236 engines of the previous production heads, two steel/bronze bushings were pressed into place, and the annular space between them was used to supply oil to the piston pin.Pistons, piston pins and rings for YaMZ-236
The pistons installed on YaMZ-236 engines are made of high-silicon eutectic aluminum alloy. To improve the running-in of the piston to the liner, its surface is covered with the thinnest (0.003-0.006 mm) layer of tin. The piston skirt has a special recess for the cooling nozzle; as well as two side recesses so that the crankshaft counterweights do not touch the piston during operation. The outer surface of the piston is equipped with five grooves for piston rings. The three upper grooves are reserved for the installation of compression rings. One groove is above the piston pin and another one is in the lower part of the piston skirt - to accommodate the removable rings. The piston pin, which serves to connect the piston to the connecting rod, is hollow, floating type. It is made from steel 12-ХН/ЗА. The outer surfaces of the fingers are cemented to a depth of 1.0-1.4 mm; are subjected to hardening and tempering to a hardness of NKS 56-65. The outer diameter of the pin is 50 mm.The piston rings on the YaMZ-236 are cast from special cast iron and installed in the piston grooves in a certain order (see above). They are chrome plated and split. Compression and low-removal rings differ from each other by different types of cross-section.
The gas distribution mechanism on the YaMZ-236 is overhead valve, with a lower camshaft. The valves are driven by pushers, rods and rocker arms. The main elements of the mechanism are as follows: camshaft, with drive gear and bearings; pushers and pusher axles; rods and rocker arms with adjusting screws and axles; valves with springs and guide bushings. The camshaft is forged and made from 45 carbon steel; The tappets are also steel, stamped, oscillating type with a roller for contact with the camshaft cams. Inlet and exhaust valves are made of special heat-resistant steel.
1 - camshaft; 2 - pusher; 3 - push rod; 4 - valve; 5 - guide sleeve; 6 - valve spring washer; 7 - outer spring; 8 - internal spring; 9 - valve spring plate; 10 - valve spring plate bushing; 11 - cracker; 12 - rocker arm; 13 - rocker axis; 14 - adjusting screw; 15 - intake valve seal; 16 - pusher axis Each cylinder has one exhaust and one intake valve, which are made of heat-resistant steel and move in guide bushings 5. A sealing rubber cuff is installed on the intake valve guide bushing. Each valve is equipped with two cylindrical springs: one with right-handed and the other with left-handed coils. A special lock is used to secure the springs, which facilitates the rotation of the valves when the engine is running, which increases the performance of the valve.
YaMZ-236 engine lubrication system
The lubrication system on YaMZ-236 engines is used of a mixed (combined) type, with a “wet” sump. The oil supply is provided by a fully unified gear-type oil pump. The oil pump consists of two sections (pressure and radiator). The pressure section pumps oil into the engine lubrication system, and the radiator section pumps it through the radiator.YaMZ-236 power supply system
Split type power supply system. It consists of a high-pressure fuel injection pump, with a fuel priming pump and regulator, an injection advance clutch, injectors, fuel filters, and fuel lines. In accordance with the operating order of the cylinders, the injection pump pumps diesel fuel through high-pressure pipelines to the injectors, which inject the next “portion” of atomized fuel into the cavities of the cylinders. Through the bypass valve and the fine filter nozzle, excess fuel is discharged back into the fuel tank.Modifications of the YaMZ-236 engine
There are 35 modifications of the “aspirated” YaMZ-236: without turbocharging, with power from 150 to 195 hp. Detailed specifications for each of them are available on the Yaroslavl Motor Plant website. The scope of application of these engines is as follows: marine engines; compressor stations; electrical units; marine diesel electrical installations; railway handcars; excavators, road graders and rollers, self-propelled cranes, front loaders, bulldozers, all-terrain vehicles, armored personnel carriers, ZIL, Ural, MAZ vehicles (mostly Soviet ones from previous years of production). There are 54 turbocharged modifications of the YaMZ-236, their power varies from 230 to 300 horsepower. They are equipped with modern buses; combines; tractors and special equipment from various manufacturers; some variants of MAZ and Ural cars.YaMZ-236 on the modern market: cost and reviews
The price for a new naturally aspirated engine YaMZ-236 ranges from 370 to 450 thousand rubles; for YaMZ-236 with turbocharging - from 480 to 650 thousand rubles. From time to time the opportunity arises to purchase YaMZ-236 a little cheaper: from the storage of the State Reserve, new, in pallets. At half the price of a new one, you can find used YaMZ-236 or individually assembled motors (after overhaul) on ad sites. For the modern development of technology, YaMZ-236 diesel engines have rather mediocre specific performance and efficiency indicators. The design, outdated over the past half century, does not allow these engines to comply with Euro-3 standards and higher. The turbocharged versions were modified to Euro-2 standards.
However, their unsurpassed reliability and unpretentiousness; the low price (compared to imported analogues) for the motors themselves and spare parts for them helps maintain stable demand for these products. Reviews about the YaMZ-236 boil down to one thing: fuel consumption, by today's standards, is high, but the reliability is simply excellent. Even in large ATPs, where bus drivers periodically change and there is no need to talk about careful handling of equipment, YaMZ-236 engines honestly work out the resource declared by the manufacturer of 800 thousand kilometers. And they continue to work, without serious breakdowns, without requiring major repairs for a long time.
The YaMZ-236M engine has been produced by the Yaroslavl Motor Plant since 1985. Designed for installation on onboard, army, fire trucks, truck cranes, dump trucks, fuel trucks, forklifts, fuel tankers based on the MAZ-5337, , Ural-4320-10, -557 and their modifications, as well as for city buses AMAZ, MARZ and railway track vehicles.
Previously, since 1958, the YaMZ-236 engine was produced.
Number of cylinders: 6
Cylinder diameter, mm: 130
Piston stroke, mm: 140
Cylinder displacement, l: 11.15
Rated power, kW (hp): 132 (180)
Crankshaft rotation speed at rated power, min -1: 2100
Maximum torque, N m (kgf m): 667 (68)
Crankshaft rotation speed at maximum torque, no more than, min -1: 1600
Engine rotation speed at idle speed, min -1:
minimum: 550-650
maximum, no more: 2275
Overall dimensions, mm:
length: 1020
length with clutch and gearbox: 1841
width: 1041
height: 1220
Weight of unfuelled engine, kg:
without clutch and gearbox: 890
with clutch and gearbox: 1205
Mixing method: Direct injection.
Fuel supply equipment: Divided.
High pressure fuel pump: Six-plunger.
Speed controller: Centrifugal, all-mode.
Injectors: Closed, with multi-hole spray.
Turbocharger: No.
Lubrication system: Mixed under pressure and splashing.
Oil filters: Two: coarse cleaning with a metal mesh filter element; Fine cleaning - centrifugal with jet drive.
Cooling system: Liquid, closed type, with forced circulation of coolant, equipped with a thermostatic device.
Starting device: Starter 25.3708-01, direct current, sequential excitation with electromagnetic drive. Rated power 8.1 kW (11 hp).
Generator: G-273V, three-phase, synchronous, alternating current with built-in rectifier unit and voltage regulator. Rated voltage 28 V, rectified current 28 A.
Clutch: YaMZ-236K. Double-disc dry, friction type, with peripheral arrangement of cylindrical pressure springs.
Transmission: YaMZ-236K. Mechanical three-way, five-speed.
Gear shift: Remote mechanical control.
The YaMZ-236NE2 engine is a turbo diesel engine and is the basis for a line of multi-purpose engines. Installed on cars, they have proven themselves to be excellent when driving in the mountains and overcoming passes.
Versatility, excellent technical characteristics, a high degree of unification and good maintainability - all this contributes to the widespread use of power units on powerful domestically produced machines.
Main characteristics
Engine type YaMZ-236NE2 with V-rev. arrangement of six cylinders, four-stroke, ignited by compression with direct fuel injection.
Turbocharging from a turbocharger 122-07 or TKR-90, liquid cooling and intermediate cooling of the air from an air-to-air heat exchanger, which is installed on the vehicle.
YaMZ-236NE2, including its modifications, comply with environmental parameters for emissions of harmful substances Euro-2 and UNECE Rules No. 96-01.
Design features:
- individual cylinder heads with gaskets;
- injectors, water pipes, fuel lines are designed for high and low pressure.
Specifications
Application
The engine is designed for installation on off-road vehicles. You can buy YaMZ-236NE2 and install it on MAZ special equipment or Neman-5201, 52012 buses. These units have wide application prospects.
Can be used in mountainous areas at an altitude of 4,500 km above sea level. In this case, a slight reduction in power parameters is possible.
Without reducing performance, the YaMZ-236NE2 engine operates in any climatic conditions at temperatures -60...+50°C, with humidity up to 98%. Uninterrupted operation in conditions of high dust concentration is possible.