Here's the general approach. Always consult your vehicle's repair manual for specific diagrams and torque specifications. Improper procedures can lead to damage or injury.
1. Identify the Belt Tensioner: Locate the alternator's drive belt tensioner. This is usually a pulley with a mechanism to adjust tension. It often has a bolt or a lever that you'll need to manipulate.
2. Locate the Tensioner Adjustment: This is crucial. On many AU Series III Falcons, it's a bolt that you will need a suitable wrench or socket to loosen/tighten. Some may have a lever that needs to be pulled or pushed.
3. Loosen the Tensioner: Using the appropriate tool, carefully loosen the tensioner bolt (or operate the lever). This will release the pressure on the drive belt. You may need to use a breaker bar for stubborn bolts. Be prepared – the belt will likely spring away quickly once the tension is released.
4. Remove the Belt: Once the tension is released, carefully guide the belt off the alternator pulley and any other pulleys it runs over.
Important Considerations:
* Safety First: Always disconnect the negative terminal of the battery before working on the vehicle's electrical system.
* Engine Cool: Allow the engine to cool completely before attempting any repairs to avoid burns.
* Proper Tools: Use the correct tools to avoid damaging the tensioner or other components. A socket set, wrench, and possibly a breaker bar may be necessary.
* Visual Inspection: Before starting, inspect the belt for cracks or wear. It might be a good idea to replace it while you're at it.
* Consult a Manual: A repair manual specific to your AU Series III Falcon (including the engine type) is invaluable. It will show you exactly where the tensioner is located, how to access it, and the correct procedure for adjusting it.
If you're not comfortable performing this repair yourself, it's best to take your vehicle to a qualified mechanic. Working with belts and pulleys can be dangerous if not done correctly.
