Changed Alternator now no lights?

I have a 87 nissan sentra the alternator was bad had it tested in car and then once I pulled it. Hooked new one back up and first thing I noticed was dash lights went out, then came back on when I reved it. Tightened the belt up cause it was slipping a bit, lights came on then went out and haven't came on since? Radio not working either that when out when the lights went. Anyone have any incline as to what it could be?
Changed Alternator now no lights?
You have an electrical issue somehwere. If the alternator were bad, the battery would have taken up the load but it isnt, I would be inclined to check the fuseable link.
Changed Alternator now no lights?
sounds like you may have a short under the dash. have you checked the fuses. just changing the alt wont knock out the light or radio.
The alternator wouldn't cause that to happen,however if you let the wire running to the alternator hit the motor or something on he metal frame of the veicle it would cause a fuse to blow, so be sure to check all of the fuses, you might have to fuse boxs ,one under the hood %26amp; another one under the dash or inside of the clove box.
Rebuilt alts are relatively often no good. Also have your battery tested.