alternator shimm placements

[thejinx]

Ok. Tinkering today and went to rev the engine and saw sparks from area of alternator. On removing fan belt and pulley. I see that the rear of the pulley has been cutting into the alternator.

Reading some stuff on net. There should be a spacer behind the inner pulley? Is this right and where do I get them?

 

[Peter Good]

If the spacer behind the pulley was missing, you would not be able to turn the shaft; it would be pretty much locked solid. There is much debate on this matter, but my view is most of issues like you report is due to insufficient shims in total.
Peter Good