There isn't a whole lot of extra room around the serpentine tensioner pulley so here is what I do...
I put a box end wrench on the tensioner pulley nut. Then I push on the opposite end of the wrench with a long piece of wood... something thin enough to fit in the space you do have. I think I use a board that is about a half inch wide/thick. It helps if you have someone else remove the belt when you push on the wrench end.
Gary from Princeton, MN
The zd30 has a hydraulic tensioner using an idler pulley to automatically tension the serpentine belt.
Remove belt and tensioner should just be bolted to engine
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.
Look in the engine compartment for the "serpentine belt" path & tensioner diagram. Release the belt tension at the tensioner, remove & reverse operation.
Assuming you have a serpentine belt on that 3.3L engine, the tension on the alternator would be controlled by the idler (tension) pulley. The alternator is stationary.
what engine size? 2.0 soc does not have serpentine belts,has 2 serpentine timng belts. need engine size to help more.
I let Jiffy lube do it. It only costs about $15 to learn that they had to use a little effort and it took two people with 4 hands. 2 to hold, 2 to change. There should be a bolt on the tension pulley. You would move it in the opposite direction of the tension. Watch were you use for leverage!
If it has a serpentine belt it should have an automatic belt tensioner If it doesn't have a serpentine belt then alternator should be the adjustment/pivot point
Usually, A serpentine belt system has a spring-loaded idler. Using the proper wrench, usually an 18mm, one can relieve the tension on the belt, making it relatively easy to change the belt. On most vehicles you will find a sticker either on the underside of the hood or somewhere in the engine compartment that shows how the belt goes on.
Tension is accomplished with a belt tensioner, it is probably defective and needs replaced.
The tensioner is the arm on the passenger side of the engine near the front that has a pulley on the end and controls the tension of the serpentine belt. www.trailvoy.com
It's function is to keep the tension on your serpentine belt at the correct tightness. On most vehicles you will need to take the tension off in order to change the serpentine belt. On many vehicles this is accomplished by placing a socket and ratchet (usually 1/2 inch will be required) on the bolt on the end of the pulley. By using the ratchet you take the tension off enabling you to remove the belt. To place the new belt on just repeat the process enabling you to slip the new belt in to place on the pulley. For proper belt arrangement most vehicles have a diagram under the hood in the engine compartment.