I rebuilt the old alternator when I restored the car/motor. When I installed the alternator it wouldn't work as the local shop who rebuilt it installed a voltage regulator with incorrect trigger amperage so it wouldn't work or charge... but that's another story.
I ended up having to use an alternator from a spare 3.2 as I knew it worked. This is an 87' 911.
Now that it's back in running I am seeing some wobble in the fan. I didn't notice it before, the new motor has about 180 miles on it and everything is working great. I noticed there was some dust where metal was being eaten behind the main nut. The nit didn't come loose but the 3 outside spacer shims (the extra's of the 6 in total, 3 being inside for belt tension) were being eaten up due to some sort of wobble or off balance issue.
Fan is brand new and so is shroud.
I took it all apart and you can see from the pictures below something doesn't like the way it's sitting. Once everything was off before I pulled the fan off I spun it and it isn't true. I'm unsure if there was a riveting issue when the fan was built/made or what but does anyone have an idea why this would be happening? I also spun the shaft by itself on the alternator (without the fan) and it appears to be straight. Guessing the fan could be the issue but not sure. As mentioned it was brand new.
PS. You can see in one of the photos where the outer belt pulley was being rounded out from it's initial rectangle shape to lock into that outer hub on fan...
Thank you for any help/guidance.
