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Loosen the alternator tensioner bolt. You will be able to slide the alternator either way to adjust the tension on the belt.
how do I loosen fan belt to remaove alternator for replacement of alternator?
If it is a serpentine belt, the tension is automatically adjusted by the tension idler. If the belt is loose then the tensioner needs replacing. If it is a normal drive belt, then the alternator is mounted on a slotted bracket that allows you to adjust the position of the alternator. You can loosen the bolts and adjust the tension on the belt.
The alternator is rotated on it's pivot to adjust belt tension.
To adjust the alternator belt on a 1990 Plymouth Sundance with a 2.5 engine, first, locate the alternator and the tensioner bolt. Loosen the tensioner bolt to allow the alternator to pivot. Adjust the belt tension by moving the alternator until there is about 1/2 inch of deflection when pressing down on the belt midway between the pulleys. Once the desired tension is achieved, retighten the tensioner bolt securely.
there is a belt tensioner near the alternator.
To adjust the loose alternator belt on your 1986 Chrysler LeBaron convertible with a 2.2L engine, first locate the alternator, which is mounted on the engine. Loosen the mounting bolts on the alternator and the adjusting bolt to allow movement. Adjust the alternator to achieve the proper tension on the belt—generally, you should be able to press the belt down about half an inch at the midpoint. Once the desired tension is achieved, tighten the bolts securely to hold the alternator in place.
laguna has automatic tensioner, so don't adjust!
Adjust the belt or replace it with a new one.
You dont , its an auto tensioner .
If it is a drive belt and not a serpentine belt is has no tensioner. You manually adjust the tension by normally adjusting tension by moving the alternator. Loosen to bolts holding the alternator in place and then adjust the tension. Tighten the bolts when the tension is right. If it is serpentine belt if you follow the belt around the the engine you will see the tensioner.
If your 88 CRX SI alternator belt is making a strange intermittent noise shortly after changing the alternator what's wrong, the belt tension could be off. Adjust the belt slightly.