The engine is YaMZ-238 DE2. assembled

Warranty 12 months;

Note: without oil.

Main parameters and characteristics

YaMZ-238DE

engine's type

Four-stroke with compression and turbocharging

Number of cylinders

8

Cylinder arrangement

V-shaped, camber corner 90º

Operation of the cylinders

1-5-4-2-6-3-7-8

Direction of rotation of the crankshaft

Right

Diameter of the cylinder, mm

130

Piston stroke, mm

140

Working volume, l

14.86

Compression ratio

16.5

Rated power, kW (hp)

243 (330)

Crankshaft speed at rated power, min-1

2100 + 50-20

The maximum twisting moment, Nm (kgf ּ m)

1225 (125)

Rotational speed at the maximum torque, min-1

1200-1400

Idle speed, min:

   maximum, not more than

   minimal

2275

600 ± 50

Specific fuel consumption by the speed characteristic, g / kW ּ h (g / hp ּ h):

   minimum

206.7 (152)

   at rated power

227 (167)

Specific consumption of oil for carbon monoxide in% to fuel consumption, no more than

0.5

Method of mixture formation

Direct Injection

The combustion chamber

Unshared type in piston

Camshaft

One for both rows of cylinders with gear drive

Gas distribution phases:

Inlet Valves

    Opening, hail, up to ВМТ

20

    Closure, hail, after HMT

40

Exhaust Valves

   opening, hail, to HMT

66

   closing, hail, after TDC

20

Number of valves per cylinder

One intake and one outlet

Thermal clearances of valves on the cold engine, mm

0.25-0.30

Lubrication system

Mixed, with cooling oil in a liquid-oil heat exchanger:

under pressure, the bearings of the crankshaft, camshaft, pushers, rocker arms, spherical surfaces of the rod pushers, high pressure fuel pump, turbocharger are lubricated. The remaining friction surfaces are lubricated by spraying.

Gear type, single-section

Oil pressure on the warmed-up engine in the block's main line, kPa (kgf / cm2):

   At rated speed

400 - 70 80 (4-7)

   At minimum speed, not less than

80 (0.8)

Oil filters

Two: a full-flow cleaning filter with a filter element and a centrifugal filter

Oil cooling system

With a liquid-oil heat exchanger, which is mounted on the engine block of the engine on the left

Pressure of oil of opening of valves of system of greasing, кПа (кгс / см2):

   oil pump pressure relief valve

700-800 (7.0-8.0)

   differential valve

490-520 (4.9-5.2)

   oil filter bypass valve

200-250 (2.0-2.5)

Fuel supply system

Shared type

High-pressure fuel pump (HP pump) with regulator and fuel feed pump

Eight-section, plunger, plunger spool type:

- plunger diameter 10 mm, plunger stroke 11 mm - YaMZ-238BE, YAMZ-238DE;

- plunger diameter 12 mm, plunger stroke 14 mm - YAMZ238BE2, YAMZ-238 DE2

Model of injection pump

806.1111005-50

(238 DEU-2)

806.1111006-50

(238 DE-1, -5, -10, -11)

Operation of fuel pump sections

1-3-6-2-4-5-7-8

Speed ​​regulator

Centrifugal, all-mode

Fuel feed pump

Reciprocating with manual fuel pump

Injectors

Closed type with multi-sprinkler:

- 261.1112010-11 on the engines YAMZ-238BE, YAMZ-23 8DE;

- 267.1112010-02 or 204.1112010-50.01 on engines YAMZ-238BE2, YAMZ-238DE2

with common cylinder heads;

- 51.1112010-01 on engines YAMZ-238DE2 with individual heads

The pressure of the injection of the injector, MPa (kgf / cm2)

20.6 + 0.8 (210 + 8) -261.1112010-11

26.5 + 0.8 (270 + 8) - 267.1112010-02 and 26.5 + 1.2 (270 + 12) - 204.1112010-50.01

26.5 + 1.2 (270 + 12) -51.1112010-01

Steering angle of fuel injection advance

It is established on marks on a flywheel and the case ТНВД and makes:

13 ° ± 1 - on the engines YAMZ-238BE, YAMZ-238DE;

6 ° ± 1 - on engines YAMZ-238BE2, YAMZ-238DE2 with common heads;

8 ° ± 1 - on engines YAMZ-23 8DE2 with individual heads

Fuel filters:

   coarse cleaning

With a replaceable element (YMZ-23 8E, DE), a settling tank (YMZ-23 8EB2, DE2).

   fine cleaning

With replaceable filter element.

Puffing system

Gas turbine, with one turbocharger, with radial centripetal

turbine and centrifugal compressor

Turbocharger (TCR)

Model 122 or TKR 100 *

Boost pressure (excess) at the rated operating mode, kPa (kgf / cm2)

110 (1.10)

Cooling system

Liquid, closed type, with forced circulation of coolant. Equipped with a thermostatic device for automatically maintaining the thermal mode of the engine.

Water pump

Centrifugal type, with belt drive

Fan

6-blade, with gear drive and fan clutch

Liquid-oil heat exchanger

Plate or tubular type. Equipped with a tap or plug for draining the coolant

* -turbocompressor by design is similar to TKR model 122

Thermostats

With a solid filling, the opening temperature is 80 ° C.

Electrical equipment