REAL annoying... any ideas? Sounds like a squealing fan belt in a car

 

Check the alignment of the belt.

 

inner primary bearing

 

If you mean it's that loud, it's probably not your belt. Your drive belt will "chirp" if the tension or alignment isn't right but it's nothing like a squealing belt in a car.

But the first question when diagnosing a HD problem--have you changed anything lately? If so, start looking there.

 

+1 I agree

 

Inner primary bearing

 

ok, after reevaluation, it seems to be coming more from the rear pulley. I've checked belt alignment and tracking, and it's good. Here's my thought:

When I bought the pulley to go with the new wheels, I didn't notice it was 65 tooth. I am wondering if the belt tooth pattern is different for the 65 than it is for the 70. I sprayed a little WD40 on the teeth of the belt and the squeal went away, for about a half mile or so.

With that said... new thoughts? Anyone know for sure if the belts are spacing is different? I won't be able to switch pulleys back until I get back from Louisiana next weekend. But if that's not the problem...

 

this is more like a whining sound and as soon as you go into 5th gear it quits?? any suggestions?

 

Could be the belt working on the chrome teeth on the pulley. Change back to the original 70 tooth pulley then contact the vendor and ask them if the chrome might be a contributing factor.

 

If it's the same diameter then it would have to be spaced differantly. The ratio of the radii would have to be 70/65 to have the same spacing.