Contents: Removal ⬇ Installation ⬇
The fan clutch should be replaced if the hub is rusty inside. The fan either stops or rotates very heavily when the engine is stopped. Replace the clutch also if there is axial or radial play. Rotate the fan back and forth to check for play; there should be no noticeable play. There should also be no oil coming out of the hub.
Removal
1. Remove the lower engine compartment shield.
2. Unscrew the fan using a 32mm wrench from the coolant pump hub.
Warning! The nut has a left-hand thread, so you need to turn it to the right (clockwise).
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3. When unscrewing the nut, press the V-belt of the pump, thus hooking the hub so that it does not turn. OPEL workshops use a special tool KM-821 (1), which presses the V-belt to the bolt head; the device can also be made independently from tin.
4. After loosening the nut, you can continue to unscrew it by rotating the fan impeller. Make sure that the fan impeller does not fall down.
5. Remove the fan downwards.
Warning! Do not place the fan with viscous coupling in a horizontal position, place it only vertically.
6. If necessary, disconnect the fan impeller and fan coupling, unscrew the 3 mounting bolts.
Installation
1. Install the viscous coupling into the fan and secure it with the mounting bolts with a force of 10 Nm.
Warning! To avoid damaging the coupling threads, do not overtighten the mounting bolts.
2. Screw the fan with the coupling installed to the pump hub with a force of 20 Nm, while holding the hub.
Warning! Do not tilt the nut. The nut has a left-hand thread, screw it in to the left.
3. Install the lower engine compartment shield.
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