How do you replace the alternator on a 1991 Hyundai Excel gls?

To remove the alternator, remove the top bolt that tensions the belt. Remove the wiring. One is a plug and the other is with a nut. The last thing is to undo the bottom nut from the side closest to the exhaust under the alternator. This bolt has to be totally removed by pulling it out from the belt side. The alternetor will then lift out. After you have done this once you should be able to change one in about half an hour maximum.