Ok, the driver side axle needs to be removed to get the alternator out, so I included the instructions for this. Sometimes you can wiggle it out through the top, but its easier to just remove the axle.
Isn't there a nut on the driver side?
It should have one. The other end of the bolt is just a square head. There should be a 14mm nut on the same side as the alternator pulley. Honda had the same design on the lower alternator bolt from 84-2000.
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