|
4-1-obshhie-svedeniya.html
4.1. The general dataOn cars eight-cylinder V-shaped engines (V8) with liquid cooling are established. Engines have in a motor compartment is longitudinal.
Engine cylinders are cast from grey pig-iron for a single whole with the block of cylinders. Heads of the block of cylinders are made of an easy alloy and fasten to the block of cylinders bolts. In a head of the block of cylinders запрессованы steel directing plugs and saddles of valves. To the bottom part of the block of cylinders of the engine the oil pallet in which flows down the oil necessary for greasing and cooling of the engine fastens.
In engines the scheme of a cross-section stream at which топливовоздушная the mix arrives in engine cylinders on the one hand the engine is used, and the fulfilled gases leave on the other hand the engine. At such design filling of cylinders топливовоздушной a mix and removal of products of combustion considerably improves.
On each cylinder it is established on two inlet and two final valves. On each section of the block of cylinders the separate head of the block with two camshafts is established. One camshaft operates inlet valves, another – final. The drive of the camshafts operating final valves, is carried out by one gear belt. The camshaft operating inlet valves, is put in action from a camshaft operating final valves.
Backlashes in valves are regulated automatically with use of hydraulic pushers, therefore manual adjustment is not required.
For oil giving to rubbing surfaces of the engine the oil pump with a drive from a cranked shaft serves. Under pressure oil moves on channels to bearings of cranked and distributive shaft.
The water pump is located in a forward part of the engine and put in action by a gear belt. Keep in mind that the system of cooling of the engine should be filled all year long by a mix of antifreeze and water with the low maintenance to exhaust.
Preparation and ignition in engine cylinders топливовоздушной mixes is carried out by a control system of the engine which while in service does not demand adjustments. The corner of an advancing of ignition and frequency of rotation of idling are regulated by a control system of the engine. At maintenance service carrying out it is necessary to replace spark plugs and filtering element of the air filter.
The prevention
The radiator fan can join after a stop of the engine and ignition deenergizing, therefore at work on the hot engine be careful. That the radiator fan has not joined, disconnect from the engine of the fan of a radiator an electric socket.
Specifications
|
Head of the block of cylinders
|
|
|
Deviation from planeness привалочной surfaces of a head of the block of cylinders, mm
|
0,1
|
|
Length of the shock-absorber of a gear belt, mm:
|
|
|
On the cold engine
|
136–139
|
|
On the hot engine
|
126–129
|
|
Camshaft
|
|
|
The maximum axial backlash of a camshaft, mm
|
0,15
|
|
Is minimum admissible distance from an end face of the valve to the top surface of a head of the block of cylinders, mm:
|
|
Engine ABZ:
|
|
|
Inlet valves
|
36
|
|
Final valves
|
36,3
|
|
Engine AEW:
|
|
|
Inlet valves
|
36,4
|
|
Final valves
|
36,4
|
|
Engine AHC:
|
|
|
Inlet valves
|
25,7
|
|
Final valves
|
36,4
|
The moments затяжки* the basic carving connections, Нм
|
The hydrotransformer to a leading disk:
|
|
|
Engine ABZ code
|
35
|
|
Engine AEW code
|
85
|
|
Forward right arm to the engine
|
45
|
|
The generator to the engine:
|
|
|
M10
|
40
|
|
М8
|
25
|
|
Bolt of fastening of a pulley of a cranked shaft:
|
|
|
Without the special tool 2079
|
450
|
|
With the special tool 2079
|
350
|
|
Final collector to a head of the block of cylinders
|
25
|
|
The conditioner compressor to an arm
|
25
|
|
Conditioner arm
|
25
|
|
Reception exhaust pipe to a collector
|
40
|
|
Forward right arm to the engine
|
45
|
|
The bottom frame to a body
|
65 + to tighten on a corner 180
|
|
Fastening bolts гасителя fluctuations to a pulley of a cranked shaft
|
25
|
|
Roller of the mechanism of a tension of a gear belt
|
25
|
|
Bolt of fastening of a pulley of a camshaft
|
55
|
|
Bolt of fastening of a rotor of the gauge to a back part of a head of the block of cylinders
|
20
|
|
Bolts of fastening of a head of the block of cylinders:
|
|
|
Stage 1
|
To tighten the moment 40
|
|
Stage 2
|
To tighten the moment 60
|
|
Stage 3
|
To tighten on a corner 180
|
|
Cover of the bearing of a camshaft
|
15
|
|
Bolts of fastening of a casing of a gear belt
|
10
|
* For other carving connections the moments of an inhaling the following, Нм:
М6 – 10; М8 – 20; М10 – 45; М12 – 65.
|