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6.1. General information

Install eight-cylinder diesel V-shaped engines with liquid cooling on cars. Engines are located in a motor compartment is longitudinal.
Cylinders of the engine are cast from gray cast iron for a single whole with the block of cylinders. Heads of the block of cylinders are made of light alloy and fasten to the block of cylinders bolts. In a head of the block of cylinders steel guides of the plug of valves are pressed. To the lower part of the block of cylinders of the engine the two-section oil pallet in which the oil necessary for lubricant and cooling of the engine flows down fastens.
In engines the scheme of a cross stream at which air comes to engine cylinders on the one hand is used, and the fulfilled gases are removed on the other side of the engine. Nozzles give fuel directly to engine cylinders.


Specifications
Block of cylinders
Internal diameter of the cylinder, mm:
The 1st nominal
78,306–78,310
The 2nd nominal
78,310–78,314
The 1st increased
78,346–78,350
The 2nd increased
78,350–78,354
Pistons
Diameter of the piston, mm:
The 1st nominal
78,253–78,261
The 2nd nominal
78,259–78,267
The 1st increased
78,293–78,301
The 2nd increased
78,299–78,307
Bent shaft
Axial gap, mm:
nominal
0,090–0,251
maximum permissible
0,28
Radial gap, mm:
nominal
0,018–0,045
maximum permissible
0,1
Diameter of a radical neck, mm:
The 1st
64,968–64,948
The 2-, 3-, 4-, 5
64,978–64,958
Piston rings
Gap in the lock of a piston ring, mm:
the top compression
0,20–0,35
the lower compression
0,70–0,90
oil scraper
0,25–0,50
Gap in a flute of the piston, mm:
compression ring
0,045–0,085
oil scraper ring
0,025–0,065
Rods
Radial gap in the conrod bearing, mm:
nominal
0,030–0,079
maximum permissible
0,12
Head of the block of cylinders
Deviation from planeness privalochny

surfaces of a head of the block of cylinders, mm
0,1
Camshafts
Axial gap, mm:
nominal 
0,06–0,15
maximum permissible
0,3
Radial gap, mm:
nominal 
0,035–0,085
maximum permissible
0,1
Valves
Inlet / final, mm:
diameter of a plate
27,00–27,20/24,00–24,20
diameter of a core
5,968– 5,982/5,958–5,972
valve length
98,95–99,28/98,95–99,25
corner of a working facet
45 ° -45 °20? / 45 ° -45 °20?

Inhaling moments * main threaded connections, N · m
Turbocompressor arm
22
Arm of the mechanical valve of system of recirculation of the fulfilled gases
22
Reception exhaust pipe to a turbocompressor
25
Support of the compensator twisting the moment to a long beam
40
Engine support
40
Driveshaft thermofilter
23
The conditioner compressor to an arm
22
The delivery pipeline to the pump of the amplifier of steering
50
Collars of fastening of hoses of the cooling system
2
Pulley of a gear belt to the camshaft
75
Roller with the clown to the block of cylinders
45
Quencher of fluctuations to a pulley of a bent shaft
22
Carving stopper in the top part of the oil pallet
35
Stopper of an oil-filling mouth to a head of the block of cylinders
10
Connecting pipe of the valve of system of recirculation of the fulfilled gases
22
Final collector
10
Air pipe to a turbocompressor
10
Bolts of fastening of covers of radical bearings:
stage 1
30
stage 2
50
stage 3
tighten bolts on a corner 90 °
Cover of a head of the block of cylinders to a head of the block of cylinders
10
Nozzles to a head of the block of cylinders
10
The control unit of injection of fuel (Rail-element) to an inlet collector
30
Fuel-supply lines of high pressure
30
Average pipe of the cooling system to a head of the block of cylinders
10
Pipe of system of ventilation of a case
10
Fuel pump of high pressure
22
Back casing of a gear belt:

M6
10
M8
22
The directing roller to the block of cylinders
70
Turbocompressor
20 N · m + to tighten bolts on a corner 90 °
* For other threaded connections the inhaling moments following, N · м: M6 – 10; M8 – 20; M10 – 45; M12 – 65.