[SPCorBUST]

Originally Posted by Rulin

This method really helped me dial in my belt today. Thanks @vgi

My belt was way too loose before I think. I was getting belt powder on parts near the SC plate. I also thought the cogged pulleys were the reason why the whine went completely away, after switching from smooth pulleys. But seems like my belt was just too loose.

I also couldn't get consistent results on the gates app because the belt was so loose. I'd pluck the belt and wouldn't get any results, or it would jump from 15hz to 120hz or something like that.

After using @vgi method above, I was able to actually get the gates app to read a consistent result. It is reading 55hz after every pluck (as well as I could actually feel it resonate now).

I'm going to drive around for a week or so and check back if the hz stays consistent (or my belt breaks from being so tight now). If it's still 55hz I might try and dial it into 60

Edit: well now that I measured the bolt, it's 19-20.5 mm depending on how you measure it exactly. So that puts me a little more at ease about being the correct tension now. Plus hearing the whine again is awesome!

Stuff like this should go into the first post. A section for "Common Issues" and "Common Fixes" would kill a lot of the noise in this thread, especially when the exact same issues (especially belt noise/tightness/looseness related) keep popping up.

It could be something simple, like links to the post for "Reducing belt noise", just like the link for clamping hoses so they don't pop off. We should make it easier for (new) owners to absorb some of the accumulated tribal knowledge, not force them to go through 150+ pages of mostly drivel just for the few good, relevant posts to whatever issue they're having. Searching through all that is tantamount to hazing.