Audi 100

1982-1990 of release

Repair and operation of the car

3.1.2.9. Camshaft drive

GENERAL INFORMATION

Camshaft drive details

1 – pulley of the water pump;
2 – bolt of fastening of a pulley of the water pump;
3 – bolt of fastening of a pulley of a cranked shaft;
4 – pulley of a cranked shaft;
5 – belt;
6 – caps;
7 – camshaft drive cover the lower;
8 – camshaft drive cover the top;

9 – camshaft drive belt;
10 – back cover of the drive of a camshaft;
11 – cogwheel of an intermediate shaft;
12 – bolt of fastening of a cogwheel of an intermediate shaft;
13 – cogwheel of a cranked shaft;
14 – bolt of fastening of a cogwheel of a cranked shaft;
15 – natyazhitel of a belt of the drive of a camshaft;
16 – nut of fastening of a natyazhitel

Adjustment and check of a tension of a belt of the drive of a camshaft

1 – natyazhitel of a belt of the drive of a camshaft;

2, 3 – wrenches;

4 – camshaft cogwheel;

5 – camshaft drive belt;

6 – cogwheel of an intermediate shaft

Dismantling

PERFORMANCE ORDER

1. To remove the top cover of the drive of a camshaft (see rice. Camshaft drive details).

2. To turn off bolts of fastening and to remove a pulley of the water pump.

3. To install the piston of the 1st cylinder in v.m.t. a compression step (both valves are closed). The tag on a pulley of a cranked shaft has to be combined with an arrow on the lower cover of the drive of a camshaft.

4. To turn off four bolts and to remove a pulley of a cranked shaft.

5. To remove the lower cover of the drive of a camshaft.

6. To weaken a nut of fastening of the mechanism of a tension of a belt and to turn a key an eccentric axis of a natyazhitel of a belt counterclockwise to weaken a belt tension.

7. To take off a belt from cogwheels of a cranked shaft, rapredelitelny and intermediate shaft and from a natyazhitel of the mechanism of a tension.

8. To turn off a nut and to remove a natyazhitel.

9. To turn off a bolt and to remove a cogwheel of an intermediate shaft, to take out a spline.

10. To turn off a bolt and to remove a cogwheel of a cranked shaft, to take out a spline.

11. To turn off a bolt and to remove a cogwheel from a camshaft, to take out a spline.

12. To turn off bolts and to remove a back cover of the drive of a camshaft.

Assembly and adjustment

PERFORMANCE ORDER

1. To establish a back cover of the drive of a camshaft and to tighten bolts of its fastening.
2. To insert a spline into a groove on cranked to a shaft and to establish a cogwheel. To apply the 14th sealant on a bolt carving, to screw a bolt with a washer and to tighten the moment 200 N · m (20,0 kgfs · м).
	3. To insert a spline into a groove on distributive to a shaft, to establish a cogwheel, to screw a bolt with a washer and to tighten the moment 80 N · m (8,0 kgfs · м). The tag on a cogwheel has to coincide with the top plane of laying of a cover of a head of cylinders on the left side of the engine.
4. To insert a spline into a groove of an intermediate shaft, to establish a cogwheel, to screw a bolt 12 with a washer and to tighten the moment 80 N · m (8,0 kgfs · м).
5. To install the camshaft drive belt tension mechanism.
	6. Temporarily to establish a pulley 4 cranked shaft on a cogwheel 13. The piston of the 1st cylinder has to be in v.m.t. To turn a cogwheel 11 intermediate shaft so that the tag on it was combined with a tag on a pulley 4 cranked shaft, as shown in drawing.
7. To put on a belt 9.
8. To turn a key 3 (see rice. Adjustment and check of a tension of a belt of the drive of a camshaft) the mechanism of 1 tension of a belt 5 clockwise for a preliminary tension of a belt. To check, that tags v.m.t. did not move a little. To turn the mechanism of 1 tension further clockwise, having pulled a belt 5 so that it could be developed on 90 °, having undertaken it two fingers in the middle between distributive and intermediate in bulk. Holding a key the 3rd mechanism of a tension, to tighten a nut of its fastening by a key 2.
9. To remove a pulley 4 cranked shaft. To establish the lower cover of the 7th drive of a camshaft (see rice. Camshaft drive details).
10. To establish a pulley of a cranked shaft, to tighten bolts the 3rd moment of 20 N · m (2,0 kgfs · м).
11. To establish a pulley of the water pump.
12. To establish the top cover of the drive of a camshaft.