Help me figure out my bearing squeal 1980 240D

[arcticathlon]

So over the last week I have started hearing a quick chirp of what sounded like a bearing when i was making sharp turns. So i was thinking that a front wheel bearing might be going out.

However, this morning i started to hear the chirp when i would accelerate from a stop at a red light. It was just a short second of chirping.

Then i was able to get the chirping to happen when in neutral (manual transmission) and just throttling the engine a little. This will induce the chirping.

Could this be a belt that is fooling me? The belts are all in good shape...

Can someone help me. I can do any suggested tests to further help the diagnosis.