The camshafts are driven from the crankshaft by a toothed belt. In this case, the exhaust camshaft, along with the valves, drives blocks «pump nozzle», which are located between the four valves of each cylinder.
The intake camshaft, along with the valve actuator, drives a twin pump that supplies fuel to the blocks «pump nozzle», and also creates low pressure for the vacuum brake booster (see illustration 16.0).
Gas distribution mechanism drive. Vehicles with 2.0 liter diesel engine, 100/103 kW (136/140 hp.) AZV/BKD
1 - the upper part of the cover of the gas distribution mechanism drive
2 - toothed belt. Before removing the belt, mark the direction of rotation of the belt. Check the condition of the belt. The bending of 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 gas distribution mechanism drive
12 - tension roller
13 - nut. Tightening torque 20 Nm + turn 45° (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 the crankshaft
19 - bolt. Tightening torque 120 Nm + turn 90° (1/4 turn). The bolt must be replaced after each disassembly. Re-lubrication of the shoulder or bolt threads is not required. Turning the bolt can be done in several steps
20 - bolt Tightening torque 40 Nm + turn 90° (1/4 turn). The bolt must be replaced after each dismantling
21 - the lower part of the cover of the gas distribution mechanism drive
22 - belt pulley on the crankshaft. Installation of the pulley on the shaft is possible only in one position
23 - bolt. Tightening torque 10 Nm + turn 90° (1/4 turn). The bolt must be replaced after each dismantling
24 - cover
25 - the central part of the cover of the gas distribution mechanism drive
26 - engine mount bracket
27 - bolt. Tightening torque 45 Nm
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