Anyone change the deflector, AC and Idler pulley on a N62?

[Johnny_5]

I purchased the pulleys only and was trying to figure out if there was a torque specifications for them? I was going to swap out the entire AC and Idler tensioners as a whole but they still seem to be fine. Technically the pulleys dont look to bad either but since I was working in that area I was going to swap them out. Anyone done just the pulleys? And if so what was the torque specifications?

Thanks in advance.