There are two types of tensioners, spring tension, and bolt adjusted tension.
spring tensioners, place the appropriate sized wrench on the nut in the middle of the pulley and turn clockwise, the wrench will give you ample leverage to pull back the arm with ease.
Bolt adjusted, you will need to locate and loosen the jam nuts on the tensioner and wrench the adjusting bolt so that the pulley moves away from the belt, once sufficient clearance is achieved the belt will slide off and the new one will go right on. refer to the owners manual for proper tension, too tight and it will break or damage the driven components, too loose and it will squeal.
Please make sure you have the belt routing diagram handy, you can usually find it on the inside of the hood, owners manual, or a repair manual either from Haynes or Chilton, available at your local auto parts store.
you have to put a socket wrench into the hole on the tensioner and pull up on it to release the tension from the belt.
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.
put a wrench on the tensioner pully and pull it to release tension on the belt
how to release serpentine belt tensioner on 1991 C1500 Chevy Silverado?
you have to push down on the tension pulley, then you would get slack in the belt
You should not have removed the tensioner to install the belt. It has a pivot point that and can be moved in order to release the tension on the belt. Once you install the new belt, leave it off the tensioner until last, pivit it and install the belt oner the tensioner.
there is a diagram under the hood and in your owners manual of the belt routing, you have to release the tension on the belt tensioner and the belt will come right off and to put a new belt on just follow the routing chart and release tension on the tensioner to get belt back in place and when belt is back on all pulleys just let go of the tensioner and your done.
Look in the engine compartment for the "serpentine belt" path & tensioner diagram. Release the belt tension at the tensioner, remove & reverse operation.
Note:The drivebelt routing decal on the radiator shroud to help during drivebelt install * To replace the belt rotate the tensioner pulley clockwise to release belt tension * Remove the belt from the auxiliary components and slowly release the tensioner * Route the new belt over the various pulleys again rotating the tensioner to allow the belt to be installed then release the belt tensioner
If your car has a tensioner pulley it can be moved to release the tension on the belt for removal. Make note of the routing of the belt before removing it. This will make installing the replacement belt much easier. If you do not have a tensioner pulley one of your accessory motor/pumps (most likely your alternator) can be moved in order to release the tension on the belt. Most tensioner pulleys have an hole the exact size of a ratchet drive on the tensioner arm. This allows you to put a standard ratchet (without any socket attached to it) into that hole and use the leverage of the ratchet to release the tension.
rotate the tensioner clockwise to release the tension and remove the belt then slowly release the tensioner. route new belt over the various pulleys according to the diagram under the hood again rotating the tensioner as to allow belt to fit in place and then slowly release the tensioner again.
rotate the tensioner clockwisse to release belt tension. remove belt from the auxilarary components and slowly release tensioner. route the new belt over the various pulleys, again rotating tensioner to allow belt to be installed then release tensioner. These models have a drivebelt routing decal on radiator shroud to help during installation.