The camshafts are driven by the crankshaft via a toothed belt. The exhaust camshaft, along with the valves, also drives the "pump-injector" units, which are located between the four valves of each cylinder.
The camshaft of the intake valves, along with the valve drive, drives a dual pump that supplies fuel to the pump-nozzle units, and also creates a low pressure for the vacuum booster of the brake drive (see illustration 16.0).
Timing drive. Cars with a 2.0-liter diesel engine and a power of 100/103 kW (136/140 hp) AZV/BKD
1 - upper part of the timing cover
2 - toothed belt. Before removing the belt, mark the direction of rotation of the belt. Check the condition of the belt. Bending the toothed belt is not allowed
3 - guide roller
4 - bolt Tightening torque 100 Nm
5 - bolt. Tightening torque 25 Nm
6 - exhaust camshaft gear
7 - gear hub
8 - intake camshaft gear
9 - gear hub
10 - bolt. Tightening torque 10 Nm
11 - rear cover of the timing drive
12 - tension roller
13 - nut. Tightening torque 20 Nm + 45° turn (1/8 turn)
14 - guide roller
15 - bolt. Tightening torque 20 Nm
16 - water pump
17 - bolt. Tightening torque 10 Nm
18 - toothed belt gear on crankshaft
19 - bolt. Tightening torque 120 Nm + 90° turn (1/4 turn). The bolt must be replaced after each dismantling. No additional lubrication of the bolt flange or thread is required. The bolt can be turned in several steps
20 - bolt Tightening torque 40 Nm + 90° turn (1/4 turn). The bolt must be replaced after each dismantling
21 - lower part of the timing cover
22 - belt pulley on the crankshaft. The pulley can be installed on the shaft in only one position
23 - bolt. Tightening torque 10 Nm + 90° turn (1/4 turn). The bolt must be replaced after each dismantling
24 - cover
25 - central part of the timing cover
26 - Engine mount bracket
27 - bolt. Tightening torque 45 Nm
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