This is fairly easy. If you look at the top pully you will see a long screw, this is how you tighten the belt. First you must losten the bolt on the side of the bracket that holds the long screw, after doing so then you may tighten the belt. remember to re tighten the tension bolt or it will become loose again. It is the same for the other belt also.
Below is postscript to answer listed above by other donor:
Actually, you are half right. First you loosen the pivot bolt that goes through the base of the alternator. This bolt is accessible from under the passenger side wheel well. Then you loosen the bolt aiming horizontally through the alternator bracket, this bolt is up top. You then tighten the long bolt that is aiming diagonally to the ground. At this point, the bolt pushes away from the engine, tightening the belt. Next, tighten the horizontal bolt, then the pivot bolt from under the wheel well. I just love when people try to help, then give wrong answers like dude above did. Lesson, if you do not know, don't answer.
There is a tensioner bolt that is connected to the alternator. You have to screw in the bolt, which will pull the alternator out and tighten the belt.
Serpentine belt? You may have to remove to tighten alternator
Is the timing belt on a j30 infinity run the alternator
You will need to loosen the tensioner pulley. Put the alternator belt on. Push the tensioner pulley to the left until the alternator belt is tight. Tighten down the tensioner pulley.
how do u tighten up an alternator belt on a 1987 BMW 325i?Answerhow do u tighten up an alternator belt on a 1987 BMW 325i?
To tighten the alternator best on a 240sx, loosen the bolt on the alternator on the drivers side. Pull on the alternator away from the engine to adjust the belt. When it has no more than a quarter inch of give, tighten the bolt to finish.
depending on the style of belt, on the alternator belt there is an adjustment just below the slider holding the alternator, you just simply tighten it until belt becomes tight.
You need to remove the old belt from the power steering pump. Then loosen, not remove the bolts on the alternator. Slide the belt over around and through the fan and onto the belt grove for the alternator. Then with a large bar push the alternator away so it tightens the belt. Later if not tight the belt will squeal. While putting pressure on the alternator tighten the bolts. Reinstall the power steering belt in the same way but you can tighten the belt on this one using hand pressure rather than the bar.
Loosen the tensioner pulley. The alternator belt will come loose. Remove the alternator belt. Put the new alternator belt on and tighten the tensioner pulley.
if the car doesn't have an automatic tensioner than if the belt is around the alternator pully you loosen the bolt holding the alternator on and move the alternator to tighten the belt.
You'll probably want a manual for this, but you may be able to locate a bracket on or near the alternator that moves the alternator itself or a pulley that the belt runs on. This is a tensioner and turning the bolt one way or the other will tighten or loosen the belt. DO NOT OVER-TIGHTEN THE BELT! This will damage the components the belt runs on.
Loosen alternator remove old belt. Reroute new belt, tighten alternator.
What kind of car? On an older car you just loosen the alternator and pull it until the belt is tight and then tighten the bolts back. On newer cars, there is a tensioner that pulls the slack out of the belt.
Loosen the tensioner bolt on your alternator. Slide the alternator to the left. Remove the alternator belt. Put the new alternator belt on and tighten the tensioner bolt.
Loosen both bolts on the alternator will free up the belt. When putting on the new one make sure u get the belt real tight around the alternator, by pulling the it hard when tighten the alternator back up or will not charge the battery or the belt might to come off.
Usually there is a adjusting bolt an the alternator or steering pump or ac pump, u have to loosen the bolts holding the alternator,2, and then tighten the ajusting bolt, if if got no bolt to adjust then use a prybar to push on alternator as u do the belt will tighten, hold it there and tighten the bolts.
You will need to loosen the alternator belt with the tensioner pulley. When the tensioner pulley is loose the alternator belt will become loose. Put the new alternator belt on and tighten the tensioner pulley.
You have to install a new belt tensioner.
usually the squealing is from the alternator or the alternator belt in most cases it is the belt try to tighten it or replacing
unloosen the 3 bolts on the alternator and push down on it and the belt will come loose, take the belt off and put new belt over the pulleys and to tighten pull up on the alternator and tighten the bottom bolt first and then check the belt for tightness, when you press on the belt there should be about 1/2 inch play, when you get it set then tighten all the bolts on the alternator and your done.
1. Suspect the belt is loose. Tighten it or use belt dressing. 2. Bearings are worn out on the alternator. Replace the alternator. 3. Poor workmanship on a rebuilt alternator. Replace the alternator.
If it's the alternator belt, loosen the bolts holding the alternator in place, then use something like a hammer handle to pry the alternator away from the engine which will tighten the belt. Hold the pressure on the alternator while tightening the bolts. This is a general procedure, not specific to 1996 dodge.
If it has a serpentine belt - should be automatic through the belt tensioner
All you do is look for the tension pulley and tighten it, see below