< Camshaft and its drive. VAZ 2101, 2102 (Zhigulis)
 
VAZ 2101, 2102
1. Specifications
2. Operation and service
3. The engine
3.1. Features of the device
3.2. Possible malfunctions of the engine, their reason and elimination methods
3.3. Removal and engine installation
3.4. Engine dismantling
3.5. Engine assemblage
3.6. Bench tests of the engine
3.7. Engine check on the car
3.8. The block of cylinders
3.9. Pistons and rods
3.10. A cranked shaft and a flywheel
3.11. A head of cylinders and клапанный the mechanism
3.12. A camshaft and its drive
3.12.1. Features of the device
3.12.2. Backlash adjustment between levers and camshaft cams
3.12.3. Adjustment of a tension of a chain
3.12.4. Camshaft check
3.12.5. Check of the case of bearings of a camshaft
3.12.6. Натяжитель
3.12.7. A chain of a drive of a camshaft
3.13. Cooling system
3.14. Greasing system
4. Fuel system
5. Ignition system
6. Start and gymnastics system
7. Transmission
8. A running gear
9. A steering
10. Brake system
11. An electric equipment
12. A body
13. Features of repair
14. Appendices







3-12-raspredelitelnyjj-val-i-ego-privod.html

3.12. A camshaft and its drive

The basic sizes of a camshaft and расточек in the case of bearings of a camshaft

Cut of a head of cylinders on the final valve

1 – a head of cylinders;
2 – the final valve;
3 – маслоотражательный a cap;
4 – the valve lever;
5 – the case of bearings of a camshaft;
6 – a camshaft;
7 – an adjusting bolt;
8 – a bolt counternut;
And – a backlash between the lever and a camshaft cam

The scheme of the mechanism of a drive of a camshaft and subsidiary organs

1 – a camshaft asterisk;

2 – a chain;

3 – успокоитель chains;

4 – an asterisk of the platen of a drive of the oil pump;

5 – an asterisk of a cranked shaft;

6 – a restrictive finger;

7 – a boot натяжителя;

8 – натяжитель chains

Cut натяжителя chains

1 – колпачковая a nut;
2 – the case натяжителя;
3 – a core;
4 – a spring ring;
5 – a spring плунжера;
6 – a washer;
7 – плунжер;
8 – a spring;
9 – a cracker;
10 – a spring ring

Camshaft

The camshaft – pig-iron, cast, rotates on five support in the aluminium cast case of bearings established on a head of cylinders. From axial movings it is kept by the persistent flange placed in проточке of a forward basic neck of a shaft. The basic sizes of a camshaft and the case of bearings of a camshaft are given on fig. the Basic sizes of a camshaft and расточек in the case of bearings of a camshaft.

On cars VAZ of release till April, 1982 camshafts with cams and the basic necks tempered by currents of high frequency were established. Since April, 1982 were established азотированые camshafts. Since 1984 on shaft year of release is marked. Since 1985 camshafts with отбелом cams are established; these shaft have distinctive шестигранный a corbel between 3rd and 4th cams.

Valves are put in action by a camshaft through short steel levers 4 (fig. the Cut of a head of cylinders on the final valve see). Levers shake on a spherical head of a bolt 7 by which the backlash And between cams of a camshaft and levers is regulated.

Camshaft drive

The camshaft drive is carried out from a leading asterisk 5 (fig. the Scheme of the mechanism of a drive of a camshaft and subsidiary organs see) cranked shaft двухрядной by a roller chain. The same chain results also an asterisk 4 shaft of a drive of the oil pump. The chain drive has semi-automatic натяжитель 8 with a boot 7 and успокоитель 3 chains with rubber overlays. In the bottom part of the block of cylinders the restrictive finger 6 preventing falling off of a chain in картер at removal on the car of an asterisk of a camshaft is established.

Натяжитель consists of the case 2 (fig. the Cut натяжителя chains), a core 3 with two springs, плунжера 7 see and колпачковой nuts 1 with a tightening cracker 9 which is fixed in a nut by a lock ring. Плунжер it is kept from loss from the case by a lock ring 4.


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3.12.1. Features of the device





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