To tighten the power steering belt:
1. Locate the idler pulley: This pulley is part of the power steering system and is usually located near the power steering pump. It's often a smaller pulley than the others and will have a bolt or bolts that allow for adjustment.
2. Locate the adjustment bolt(s): There will be one or more bolts on the idler pulley itself. These bolts allow you to change the position of the pulley, thus altering the belt tension.
3. Use the correct tool(s): You'll likely need a wrench or socket to loosen and tighten these adjustment bolts. The size will depend on your specific vehicle – consult your owner's manual or a repair manual for the correct size.
4. Loosen the adjustment bolt(s): Carefully loosen the bolt(s) on the idler pulley.
5. Adjust the belt tension: As you loosen the bolt, use a pry bar or similar tool to carefully move the idler pulley away from the power steering pump, thus tightening the belt. You want to achieve the correct tension. The belt should deflect approximately 1/2 inch when pressed midway between the pulleys with your thumb. Too tight and you'll put extra strain on bearings; too loose and the belt will slip.
6. Tighten the adjustment bolt(s): Once you have the correct tension, tighten the adjustment bolt(s) securely.
7. Check for proper tension again: After tightening, double-check the belt tension to ensure it's still within the correct range.
8. Start the engine: Start the engine and listen for any squealing or slipping noises. If you still hear noises, you may need to readjust the belt tension.
Important Considerations:
* Consult a repair manual: A repair manual specific to your 1987 Oldsmobile Delta 88 Brougham is highly recommended. It will provide diagrams and precise specifications for the correct belt tension and tool sizes.
* Safety: Always disconnect the negative battery terminal before working on any part of the vehicle's electrical system.
* Proper tools: Use the correct tools to avoid damaging the bolts or the pulley.
* Belt Condition: Inspect the belt for cracks, wear, or fraying. If the belt is damaged, replace it.
If you are not comfortable performing this repair yourself, it is best to take your vehicle to a qualified mechanic. Improper belt tension can damage the power steering pump or other components.
