Before the alternator belt system became widely used, accessories around the front of the engine were in charge of multiple bands. Thus, if a tape is not the whole system was not closed. In a Buick Century 1985, are a belt for A / C, energy management and one for the alternator. If the alternator belt goes out, it’s fairly easy to replace and can be accomplished with minimal tools in a parking lot, if required.
1. Pop the hood and locate the alternator on the engine block. This will be in front of the engine and will have a lead from the back around to the positive terminal of the battery. Loosen the bolt down the bracket the alternator – but not eliminate it – using an open-end wrench.
2.The measures laid adjustment belt the best in the alternator of the use of the key then push open more around the alternator to relieve tension on the strap. Slide the old belt on top of the pulley on the alternator and discard it.
3. Slide replacement belt in central and alternator pulleys. Then push the alternator down to tighten the belt and tighten the screw down using the key.
4. Use thumb to push into the center of the strip directly in the center of the two pulleys. If the belt is less than 10 inches long, the tape only get depressed about 1 / 4 inches. If it is longer, then it should deflect 1 / 2 inches at most. If the band seems too tight or to divert more than suggested, adjust the belt with the adjusting screw.
5. Tighten the bottom around the alternator belt to secure it in place.