Belt Tensioner

[rogerNY]

So I just got a 87 GN this past week, and just before I got home from my inspection the car starts acting oddly. Upon arriving home I notice that my tensionor pulley is right against my A/C pulley.
Does this mean that I need a whole new belt tensionor, and if so where can one find one?(neither advanced auto or pepboys has them)
I tried searching for the answer and couldn't find a similar topic.

Thanks in advance for all your replies

 

[Nick Micale]

My guess would be you need a new belt?

 

[CanVan87GN]

I agree with Nick. Same thing happened to me and my belt was too small. I went one size smaller than stock as well as a new tensioner because mine was making noise and worn. Looks nice and clean now

 

[rogerNY]

I replaced the belt last night(with a stock size belt) and the tensionor still falls against the a/c pulley.

Would a smaller belt make the tensionor stay up? It seems as though the tensionor has too much tension!!!(is that possible?, is there a spring that would hold it the other way, a little or some other mechanism??)

What is a part number for a smaller belt?

 

[Nick Micale]

The belt holds it in the proper place, ASSUMING stock brackets are in their proper alignment.

Stock size belt is 1618mm. Use one from GM, others seem to vary.