[brackenwhite]

I’m a newbie and just replaced my alternator with a rebuilt unit from Pelican (not hard but lots of steps).

I fired up the motor – no issues. However, when I turned on the headlights, I heard a slight whine or hum from the fan pulley area. When lights are off, noise goes away.
I have all 6 shims and installed them in the same order as previously. I am using the existing belt.

Seeing white blotches on the fan housing, I used Corrosion Block on it and the fan. I wiped as much off as possible but that stuff sure is greasy.

Am I experiencing just a slick pulley surface?

What is the proper remedy? Will it just go away? Should I disassemble and rub down pulley with mineral spirits? How big of a deal is this?

I know lots of questions – thanks in advance for any thoughts.

Bracken