I've noticed an increasing amount of squeal coming from the belts in my 89 240. I'm thinking I want to tighten them up a bit to see if that helps, but I'm not really sure how to do it. I haven't worked with the belts in my car yet, and am sure they probably need to be changed, but I was hoping to fix it for a bit with just the turn of a wrench, if possible.

Thanks for all your help. Brickboard is tha bomb!

Mike

Like on Most cars , you have to look for the pivoting bolt and the upper bolt that will loosen the adjuster. then tighten down on the 10mm nut and it will tighten the belt.
My guess is if the car is an '89 the Bushings on the alternator (at least) are getting worn. Theis causes the pulley of the alternator to misailign with the Crank pulley. Tightening wont help under this circumstance. On my '89, the alternator bushings were the only ones that went South, the AC and power steering are still good.
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'75 Jeep CJ5 345Hp ChevyPwr, it wasn't Volvo's safety , it was Longevity that sold me