Had new alternator fitted with new belts tensioner has been adjusted to max but belt screeming any clues ?

take a look;

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1.8L Engine

1. Using a belt tension gauge, measure the drive belt tension and compare with the following specifications:
   1. Alternator belt (new): 86-103 lbs. (383-461 N)
      
   2. Alternator belt (used): 68-86 lbs. (304-383 N)
      
   3. A/C compressor and power steering pump belt (new): 110-132 lbs (491-589 N)
      
   4. A/C compressor and power steering pump belt (used): 95-110 lbs. (422-491 N)
      
      
      Fig. Using a tension gauge to measure the alternator belt tension - 1.8L engines (click HERE for zoom)
      
      
   
   
2. Using the deflection method, apply moderate pressure (about 22 lbs) halfway between the pulleys, and compare with the following specifications.
   1. Alternator belt (new): 0.31-0.35 in. (8-9mm)
   Alternator belt (used): 0.35-0.39 in. (9-10mm)
   
   2. A/C compressor and power steering pump belt (new): 0.31-0.35 in. (8-9mm)
      
   3. A/C compressor and power steering pump belt (used): 0.35-0.39 in. (9-10mm)
3. If the specifications fall outside the ranges given, adjust the belt as follows:
   1. Loosen the alternator mounting bolt and adjusting bolt.
      
   2. Adjust the alternator to get the specified belt deflection.
      
   3. Tighten the bolts, then recheck the tension.
      
      
      Fig. Adjusting the alternator belt-1.8L engines
      

Hope helps.

1.8L Engine

1. Using a belt tension gauge, measure the drive belt tension and compare with the following specifications:
   1. Alternator belt (new): 86-103 lbs. (383-461 N)
      
   2. Alternator belt (used): 68-86 lbs. (304-383 N)
      
   3. A/C compressor and power steering pump belt (new): 110-132 lbs (491-589 N)
      
   4. A/C compressor and power steering pump belt (used): 95-110 lbs. (422-491 N)
      
      
      

      Fig. Using a tension gauge to measure the alternator belt tension - 1.8L engines (click image for zoom)
      

   
   
2. Using the deflection method, apply moderate pressure (about 22 lbs) halfway between the pulleys, and compare with the following specifications.
   1. Alternator belt (new): 0.31-0.35 in. (8-9mm)
   Alternator belt (used): 0.35-0.39 in. (9-10mm)
   
   2. A/C compressor and power steering pump belt (new): 0.31-0.35 in. (8-9mm)
      
   3. A/C compressor and power steering pump belt (used): 0.35-0.39 in. (9-10mm)
3. If the specifications fall outside the ranges given, adjust the belt as follows:
   1. Loosen the alternator mounting bolt and adjusting bolt.
      
   2. Adjust the alternator to get the specified belt deflection.
      
   3. Tighten the bolts, then recheck the tension.
      
      
      

      Fig. Adjusting the alternator belt-1.8L engines
      

Hope helps.

I would first try replacing the belt. These normally last about 5 to 7 years. It may be somewhat glazed, allowing it to slip under load. If that does not work, you might need to replace the tensioner pulley.

i have checked with a friend in Kenya and if you need to, you can make up an adjusting bracket for the alternator(for belt adjustment)
and remove the ac.NO PROBLEM.as when they go wrong they also take them off, when fitted. hey guys,this is a world market,its not just the good old U.S.A.that has electricity.......mind you,only 2/3rds does.....

ADJUSTMENT 1.8L Engines ALTERNATOR AND WATER PUMP BELT

1. Loosen the alternator adjusting bolt.
2. Raise and safely support the vehicle.
3. Loosen the alternator mounting bolt. NOTE: Do not pry against the stator frame. Position the prybar against a stronger point, such as the area around a case bolt. Fig. 1: A belt tension gauge should be placed on the longest span of the belt to check tension — 1.8L engine
   
   
4. Position a suitable belt tension gauge on the longest accessible span of belt and tighten the belt.
5. Adjust the tension to 86–103 lbs. (383–461 N) for a new belt or 68–86 lbs. (304–383 kg) for a used belt.
6. If a belt tension gauge is not available, adjust the tension to 0.31–0.35 in. (8–9mm) deflection for a new belt or 0.35–0.39 in. (9–10mm) deflection for a used belt.
7. Tighten the alternator adjusting bolt to 14–19 ft. lbs. (19–25 Nm).
8. Tighten the alternator mounting bolt to 27–38 ft. lbs. (37–52 Nm).
9. Lower the vehicle. Fig. 2: Alternator and water pump pulley belt routing — 1.8L engine
   

POWER STEERING PUMP BELT

1. Raise and safely support the vehicle.
2. Loosen the power steering pump mounting bolt and nuts.
3. Adjust the power steering pump and, if equipped, the air conditioning compressor belt tension by turning the pump adjusting bolt. Fig. 3: Power steering pump belt routing and locations of the mounting bolts, nuts and adjusting nut — models without A/C
   
   
4. Tighten the power steering pump mounting nut near the pump adjusting bolt.
5. Position a suitable belt tension gauge on the longest accessible span of belt and tighten the belt.
6. Adjust the tension to 110–132 lbs. (491–589 N) for a new belt or 95–110 lbs. (422–491 N) for a used belt.
7. Check for proper belt deflection. For a new belt (one with less than 10 minutes of run time), the deflection should be 0.31–0.35 in. (8–9mm). For a used belt (one with more than 10 minutes of run time), the deflection should be 0.35–0.39 in. (9–10mm).
8. Tighten the power steering pump mounting nut, located near the adjusting bolt, to 27–38 ft. lbs. (37–52 Nm).
9. Tighten the pump mounting bolt behind the pulley to 27–40 ft. lbs. (36–54 Nm), and the remaining pump mounting nut to 23–34 ft. lbs. (31–46 Nm).
10. Lower the vehicle. Fig. 4: Power steering pump belt routing and locations of the mounting bolts, nuts and adjusting nut — models with A/C
    

1.9L Engines The accessory drive belt for 1.9L engines has no provision for manual belt adjustment, since these engines use an automatic belt tensioner. Drive belt slack is taken up by the automatic tensioner. NOTE: Movement of the automatic tensioner assembly during engine operation is not a sign of a malfunctioning tensioner. This movement is the tensioner self-adjusting and is required to maintain constant belt tension. Fig. 5: Drive belt routing — 1.9L engines
2.0L Engines The accessory drive belt for 2.0L engines has no provision for manual belt adjustment, since these engines use an automatic belt tensioner. Drive belt slack is taken up by the automatic tensioner. NOTE: Movement of the automatic tensioner assembly during engine operation is not a sign of a malfunctioning tensioner. This movement is the tensioner self-adjusting and is required to maintain constant belt tension. The belt tensioner has a belt length indicator. If the indicator marks are not between the MIN and MAX marks, the belt must be replaced. Fig. 6: Drive belt routing — 2.0L SOHC engine with A/C
Fig. 7: Drive belt routing — 2.0L SOHC engine without A/C
Fig. 8: Drive belt routing — 2.0L DOHC engine

Kia Sorento 2003-05
Water Pump - Removal & Installation

1. Before servicing the vehicle, refer to the precautions at the beginning of this section.
2. Drain the cooling system.
3. Disconnect the negative battery cable.
4. Remove the drive belt and the water pump pulley.
5. Remove the timing belt cover, timing belt, auto tensioner and idler pulley.
6. Remove the water outlet fitting, the thermostat case and the water pump fitting.
7. Remove the water pump mounting bolts.
8. Remove the water pump.
   



Fig. Water pump and timing belt assembly-exploded view

To install:



Fig. Water pump bolt locations

1. Clean the gasket surfaces of the water pump body and the cylinder block.
2. Install the new water pump gasket and pump assembly. Tighten the bolts to 12-16 ft. lbs. (17-22 Nm).
3. Install the water pump fitting, the thermostat case and the water outlet fitting.
4. Install the auto tensioner and timing belt. Adjust the timing belt tension, then install the timing belt cover.
5. Install the drive belt, water pump pulley and then adjust the auto tensioner.
6. Refill the coolant.
7. Run the engine and check for leaks.

1. Before servicing the vehicle, refer to the Precautions Section.
2. Drain the cooling system.
3. Disconnect the negative battery cable.
4. Remove the drive belt and the water pump pulley.
5. Remove the timing belt cover, timing belt, auto tensioner and idler pulley.
6. Remove the water outlet fitting, the thermostat case and the water pump fitting.
7. Remove the water pump mounting bolts.
8. Remove the water pump.

To install:




Fig. Water pump bolt locations



Fig. Water pump O-ring installation

1. Clean the gasket surfaces of the water pump body and the cylinder block.
2. Install the new water pump gasket and pump assembly. Tighten the bolts to 12-16 ft. lbs. (17-22 Nm).
3. Install the water pump fitting, the thermostat case and the water outlet fitting.
4. Install the auto tensioner and timing belt. Adjust the timing belt tension, then install the timing belt cover.
5. Install the drive belt, water pump pulley and then adjust the auto tensioner.
6. To adjust the drive belt tension, hang the belt on the pulley of the tensioner and install the tensioner.
   NOTE If the tensioner is already installed, loosen its mounting bolts to allow belt installation
   
7. Install the drive belt.
8. Adjust the belt tension to specification by turning the adjusting bolt clockwise or counterclockwise.
9. Air conditioning belt tension should be 0.28-0.039 inch. Alternator belt tension should be 0.39-0.051 inch. Power steering belt tension should be 0.31-0.051 inch.
10. Torque the tensioner assembly bolt to 33-36 ft. lbs. (45-50 Nm).
11. Refill the coolant.
12. Run the engine and check for leaks.

TY for using Fixya; remember comment and rated this.

The 97 Corolla has three accessory belts. The alternator belt is the one you see when you look down on the passenger side standing near the front of the engine compartment. If fits over the alternator and the engine pulley. The belt beneath it is the a/c belt (if the car has a/c). It fits over the engine pulley and the a/c compressor. The power steering belt is toward the rear of the engine compartment, on the same side. It fits around the engine pulley and the power steering pump.

Replacing the alternator belt is not too difficult. Standing in front of the car and facing towards the rear, loosen the locking bolt under the right side of the alternator. Then loosen the alternator hinge bolt on top of the alternator. Now you are ready to loosen the alternator belt tensioner adjustment bolt, accessed under the alternator from the front. Turn the tensioner until the old belt is loose enough to remove, then turn it further so that the new belt will go on easily. Replace the belt and re-tension until you have about 1/4 in. to 1/8 in. of play in the belt, tighten the lock bolt and the hinge bolt, and run the engine. If the belt squeals it means you need more tension, but do not overtension. Recheck it after a few days.

hi mate,your problem is fairly easy to fix-----remove the plastic under tray on the drivers side,from underneath, undo the main alternator bolt,just enough to move the alternator, now from the top undo the belt tension adjustment locking bolt,then back off the tension adjuster itself until the alternator belt is loose and can slip off the pulleys-----fitting your new belt is the reverse to this. all the best.

You may have a self tensioner which applies belt tension with a spring.

Look for a spot to put a 1/'2"drive breaker bar on it and release the belt tension, then slide the belt off and install new belt. You may need a helper to remove the belt while you hold the tension off,
Its been awhile since I have seen an Escort, i may be wrong!