Usually if you have trouble finding the ten. pulley on these types of motors. You can tug on the belt real hard and look for a pulley that is moving. That's your ten. And very true about launching the wrench!!!
generaly these cars have a tensioner pulley... to loosen the belt, find the tensioner pulley, and loosen the bolt that keeps it from moving up and down.(could be on the block, but look around...) use a box end wrench on the bolt or nut head in the middle of the pulley... you will need to find the best starting position for the wrench as you will need to move the pulley and pull the belt off at the same time. the pulley will have spring tension on it so be careful not to launch your wrench when you let go! good luck
Some of the problem may be that the '93 is made by GMC not Chevy (weird). But, the tensioner pully is typically located at the top of the belt assembly. It is a smooth pully that has the word "load" and an arrow showing which way to turn the bolt. It will hacve a bolt in the center and can be loosened with a 15mm socket. Once it is loose, rotate the tensioner pully until the belt can be taken off or put on. Push the pully back in to the vertical position with the belt in place, then retighten your bolt
My suburban has a automatic tensioner therefore I need to do is take the tension off with a long wrench and slide the belt from underneath it and replace it with the new one. The tensioner is right by the water pump. If not then you will need to loosen the alternator bolt and drop the alternator to loosen the tension. Trust me manuals can be your best friend!!
Disconnect negative battery terminal. Loosen the serpentine belt - loosen the tensioner. Disconnect the alternator connections at the terminals. Slip the serpentine belt off the alternator pulley and pull the alternator out. Install is reverse.
loosen the alternator and it will slide right off Check 2carpros.com for a belt routing diagram.
The power steering unit and the alternator are both driven by the serpentine belt. Loosen the tensioner pulley and the serpentine belt will become loose. Put the new serpentine belt on and tighten the tensioner pulley.
Loosen alternator remove old belt. Reroute new belt, tighten alternator.
The pulley bellow the alternator is the tensioner. Rotate it with a 15mm to loosen belt.
loosen bolts, loosen tensioner, take of serpentine belt, remove wiring
You'll have to loosen the alternator to get the belt off, unless you have a tensioner pulley in the sequence of the serpentine. yes it removes the tension to make it easier just did it last weekend.
Disconnect the battery. Loosen and remove the serpentine belt. Unscrew the bolts that hold the alternator in place and remove it. Disconnect the wires that still hold the alternator to the vehicle. Connect the new alternator to the wires and screw it back in place. Replace the serpentine belt.
the alternator belt is the one all the way in the back. You have to loosen the power steering pump, A/C idler pulley, and then loosen the alternator.
a pully underneath the alternator moves with an end wrench. turn the nut clockwise and the belt will loosen up
Disconnect the negative charge from the battery. Loosen the two bolts that secure the alternator. Rotate the alternator to loosen the slack. Remove the alternator and install a new one.