Pic. 146. Fan impeller and viscous coupling: 1 - fastening bolt; 2 - fan impeller; 3 - fastening bolt; 4 - viscous coupling
With the front of the engine disassembled, it is not difficult to remove and install the fan drive clutch. The viscous coupling is fixed with an M10 bolt. When assembling, tighten it with a torque of 45 Nm. The fan and coupling are shown in fig. 146.
Pic. 147. Coolant pump assembly with clutch: 1 - fan impeller; 2 - bolt (3 pcs.) M6x14; 3 - bolt, M10x40; 4 - ball bearing; 5 - viscous coupling; 6 - bolts; 7 - belt drive pulley; 8 - pump housing
The device of the pump of a cooling liquid and the coupling is shown in fig. 147.