Alternator belt,,where does the belt go onto?as in off the fan or off the main drive?? thanks

The screaching is probably a drive belt not the fan, with engine running open hood and rev engine, if you hear the noise spray some WD 40 onto the alternator belt, it should quiten it, if it does then replace the belt

1995-98 Models

1. Disconnect the negative battery terminal.
2. Remove the splash guard on the right side of the vehicle.
3. Loosen the alternator belt idler pulley.
4. Slip the drive belt off the alternator pulley.
5. Remove the four air conditioning compressor mounting bolts.
6. Remove the radiator fan and fan shroud.
7. Move the air conditioning compressor forward.
8. Disconnect the alternator harness connector.
9. Remove the alternator mounting bolts, and lower the alternator from the vehicle.

To install:

1. Hold the alternator in place and install the mounting bolts.
2. Plug in the alternator harness connector.
3. Move the air conditioning compressor back into location.
4. Install the radiator cooling fan and shroud.
5. Install the air conditioning compressor mounting bolts.
6. Place the drive belt on the alternator pulley.
7. Tighten the drive belt to the proper tension with the idler pulley.
8. Install the splash guard.
9. Connect the negative battery terminal.

Proper belt tension is important. A belt that is too tight may cause alternator bearing failure; one that is too loose will cause a gradual battery discharge and/or belt slippage, resulting in belt breakage from overheating.

Instructions

1. • Disconnect the battery by turning the positive terminal bolt in a counterclockwise direction. The terminal can be set aside, as long as it does not touch the battery or vehicle frame.
   • 2Remove the radiator fan shroud, fan and radiator by turning their bolts counterclockwise and disconnecting the electrical connections. The coolant must be drained before removing the radiator by loosening the drain plug on the bottom left corner of the radiator frame. The hoses are held on with pinch-style hose clamps that can be gripped with a pair of pliers and slid back on the hose for removal. Once freed from the hoses, the radiator can be unbolted from the top mounts and slid out of the frame toward the top.
     
   • 3Uncouple the power steering pump hoses with a line wrench by turning the bolt in a counterclockwise direction. The hoses can be set aside. Some fluid may drain out into the drain pan.
     
   • 4Firmly press against the tension pulley to loosen the primary drive belt. This pulley is located on the right side of the engine as the Aurora uses a transverse-mounted motor.
     
   • 5Slide the primary drive belt off of the alternator pulley wheel and release the tension pulley. The belt will try to fall, as there is too much slack, but it can be propped up to retain its path through the other accessory pulleys.
     
   • 6Unbolt the alternator's two top bolts with a socket wrench. It may be necessary to use a universal joint socket because of the tight clearances.
     
   • 7Remove the alternator's third bolt from underneath the vehicle by turning it in a counterclockwise direction.
     
   • 8Disconnect the primary positive charging wire from the alternator's output terminal by loosening the nut in a counterclockwise direction.
     
   • 9Manipulate the alternator out of the engine compartment, taking care to not bump or harm any engine components in the process. The alternator can be worked out of the mount, then wiggled free toward the top of the motor.
     
   • 10Replace the alternator by positioning it into the mount, then securing the charging terminal by tightening the nut in a clockwise direction. Tighten the bottom mount bolt first, then the two top bolts to secure the alternator.
     
   • 11Replace the primary drive belt by pressing firmly on the tension pulley and sliding the belt onto the alternator's pulley wheel. It should seat into the grooves on the wheel and should become tight when the tension pulley is released.
     
   • 12Replace the power steering pump hoses and refill the power steering pump fluid to the proper level.
     
   • 13Replace the radiator, fan and fan shroud by securing the radiator into the frame and tightening its mount bolts. Connect the hoses and electrical fan connections. Refill the coolant system to the proper level.
     
   • 14Reconnect the battery's main positive terminal by turning the bolt in a clockwise direction.
     

All above is Bull Sxxxt. Isuzu bighorn Alternator belt only drives water pump (fan) and alternator. Size of belt is 17x1000 and its a tight fit onto pulleys so it makes you think its wrong belt, but trust me its not. As if you get 17x1025 or 17x1050 belt you wont get it tight correctly due to not enough adustment on alternator. To change/adjust the belt very simple. Loosen 3 bolts (14mm socket) on power steering pump (its 2 belts that diving power steering and air con), loosen tensioner on p/s pump. Remove those 2 belt - to get access to alternator belt adjustment bolts. There are 2 bolts you will need to loosen One at the bottom of alternator (14mm socket and 25mm extension bar to get it easier) another one is 12mm on tensioner rail. Than adjust tension by screwing 12mm long bolt that mounted across the tensioner rail until you get tension correct. Correct tension is about 68kg. But i do it just to get it nicely tight without too much of sag. REMEMBER DO NOT OVERTIGHTEN the belt as you will crush berings on water pump or alternator.

Hi and Welcome to Fixya

Here's how to replace the belt.

1
Disconnect the battery ground cable and lay it aside, ensuring that it does not touch metal. Unplug the wiring harness connector on the back of the alternator if so equipped. If you can't pry the plug tangs open with your fingers, use a screwdriver.
2
Remove the nuts on the back of the alternator with a wrench then pull the wires off the studs. Loosen the accessory drive belt tensioner with a socket, by pushing the tensioner towards the engine. Lift the belt off the pulleys.
3
Unbolt the alternator mounting bolts with the appropriate socket then remove the alternator.
4
Fit the new alternator onto its bracket then insert the mounting bolts. Tighten the right bolt to 18 foot-pounds of torque then tighten the left bolt to 37 foot-pounds of torque. Route the accessory drive belt around the pulleys, except for the tensioner pulley. The drive belt routing diagram is located on the fan shroud or the inside of the hood. Push the tensioner towards the engine. Slide the belt on the tensioner then release the tensioner.
5
Plug in the wiring harness connector if so equipped. Slide the wires onto the proper terminals on the back of the alternator. Tighten the battery feed wire nut to 71 inch-pounds of torque. Reinstall the negative battery cable.

Have a good one!

Hello, first of all disconet your battery. Then locate your alternator and remove the wiring. You will then see two bolts, one is for your fan belt adjustment, take this bolt out and dont loose it. The second bolt is much longer, this is the bolt that allows you to move your alternator back and forth so that you can tighten your fan belt. Remove this and as you pull it out hold onto yoour alternator as it will now come out. You then position new alternator sliding long bolt back in place. Do it up but not tightly at this point. Replace the smaller bolt and make sure that you put your fan belt back on. Pull the alternator tighly onto the fan belt before tightening the smaller bolt. Once the fan belt is tight you can then tighten the long bolt. Reconct your wiring, reconect you battery and you should be right to go. If theres a squealing sound when you start the car you may have to retighten your fan belt, you dont need to take any wiring off to do this. I hope this is helpfull.

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3.3L Engine

1. Disconnect the battery negative - cable.

Fig. Wiring and nut locations

1. Disconnect the alternator field circuit plug.
2. Remove the B+ terminal nut and wire.
3. Loosen the adjusting T-bolt, but do not remove it.
4. Loosen the pivot bolt, but do not remove it either.
5. Remove the alternator drive belt.
6. Remove the adjusting T-bolt, pivot bolt, and mounting bolt, be careful not to loose the spacer.
7. Remove the alternator.

To install:

1. Attach the alternator to the support bracket. Tighten all bracket and alternator (except for the wiring nuts) bolts to 40 ft. lbs. (54 Nm).
2. Install the B+ terminal nut and wire and tighten to 75 inch lbs. (9 Nm).
3. Install the drive belt onto the alternator pulley. Make certain that the belt is seated correctly on the pulley.
4. Connect the negative - battery cable.

3.5L Engine

1. Disconnect the negative battery cable.
2. Loosen the lower mounting bolt but do not remove it.
3. Loosen the pivot bolt, but do not remove it.

1. Loosen the belt adjusting bolt.
2. Remove the alternator drive belt.
3. Remove the bracket.
4. Remove the lower mounting bolt and pivot bolt.
5. Remove the alternator.
6. Disconnect the alternator field circuit plug.
7. Remove the B+ terminal nut and wire.

To install:

1. Attach the alternator and bracket to the engine, then tighten the mounting bolts to 40 ft. lbs. (54 Nm).
2. Install the drive belt onto the alternator pulley. Make certain that the belt is seated correctly on the pulley.
3. Install and tighten the B+ terminal nut and wire to 75 inch lbs. (9 Nm) onto the new alternator.
4. Connect the alternator field circuit plug.
5. Connect the negative battery cable.

Hope helped with this (remember rated this help) Good luck.

the tensioner , have to retractit. Vitally

I have a 1995 xj6....same problem. I replaced the belts, water pump, and the alternator. Still does it. As I play with the tension on the belt (belt that drives water pump, alternator) it goes away and comes back. If I remove the belt, the metal to metal screech stops. I then, with just the belt, turned the main pulley on the front of the engine, and there was the sound! The main pulley has 2 belts that run on it. Also, 2 pulley tracks. They SHOULD move simultaneously and be super meshed. But the rear one moves on its own under tension until it warms up and I guess, the bushing maybe expands. Now.....how do I fix it??????