The AAZ came with two different serpentine setups depending on whether the car had AC or not. The AC setup has a tensioner, but the non-AC setup with the lower amperage alternator does not. On the non-AC setup you just loosen the alternator mounting bolts, use a pry bar to put tension on the belt then tighten everything up again.
Now, that said, are you chasing down a belt squealing type noise, particularly when cold? Very good chance your harmonic balancer is toast. The original ones had a rubber isolater between the hub and the outer ring, as they age the rubber decays and the outer part starts to slip. It usually starts with a chirping sound then eventually degrades in to a constant squeal.
If you scribe or paint a line on the balancer across the rubber ring. Fire the engine, see if the lines have moved, replace the balancer if they have.
The balancers were redesigned so they can't fail, any new one you buy should be the redesigned version.
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