How do I adjust the serpentine belt after installing an alternator?

NO engine told of 7, and is an engine question wow hard. that.

the service manual covers that.
https://eautorepair.net/Marketing/Default.asp
did the belt fall off, not told , the story.

all have tensioner that must be retracked
2 kinds, fixed bolt kind
or, the spring loaded kind and to be frank we make sure is kind is not bad first. if there at 19 years old.
called the main front drive belt system. (not cams)
I am not answering for all 7 sorry.
all we do is look at it. see what tensioner is there,
if spring type we retract it with a beaker bar socket drive. per the manual told in services manuals
if not spring type out comes my tension tool and per spec, do that.

Hi there , there should be a adjuster on the alternator, unless it's a serpentine belt, if a serpentine belt then you will need a new tension bled idler, hope this helps.

1. Disconnect the negative battery cable.
   
2. Label and disengage the electrical connections from the alternator.
   
3. On the 2.5L engines, loosen the adjusting bolts and remove the alternator belt.
   
4. If equipped with a serpentine belt, loosen the tensioner and turn it counterclockwise to remove the belt.
   
5. Unfasten the alternator mounting bolts, then detach the alternator air inlet connector (3.1L engine only) and remove the alternator from the engine.
   

To install:

1. Fasten the alternator to the mounting bracket, using the retaining bolts, washers and nuts. Tighten the retainers to the specifications listed in the accompanying figures.
   

1. If equipped with the 3.1L engine, attach the alternator air inlet connector.
   
2. Install the serpentine or alternator belt, as applicable. For details, please refer to Section 1 of this manual.
   
3. Engage the alternator electrical connections. Tighten the "Bat" terminal nut to 65 inch lbs. (7 Nm).
   
4. Check the belt tension, then adjust if necessary.
   
5. Connect the negative battery cable, then check the alternator for proper operation.
   

IS THIS A SERPENTINE BELT OR AND INDIVIDUAL ALTERNATOR BELT?
I'M GOING TO GUESS (ONE MAIN BELT)...SERPENTINE, AND THE TENSIONER IDLER PULLEY IS BINDING...NOT ENOUGH TO SMOKE THE BELT, BUT TO MUCH PRELOAD ON THE ALTERNATOR BURNING UP BEARINGS

Locate the two belts on the left side (passenger side) of your Mitsubishi Lancer. The outer belt is a serpentine belt, operating four pulleys and the inner belt is your alternator belt.

2 Follow the serpentine (outer) belt to the three pulleys lined up vertically near the front of the engine compartment. Locate the middle pulley, which is the tension pulley for the belt.

3 Loosen the bolt on the middle pulley with a socket wrench by turning counter-clockwise. Do not remove the bolt, just turn it a couple of times. Loosen the tensioner bolt on the side of the of the pulley, facing the front of the vehicle.

4 Remove the serpentine belt and then loosen the bolt on the alternator. With the alternator loose, move it forward so that the alternator belt loosens up and then remove belt from the pulleys.

5 Install the new alternator belt by placing it over both inside pulleys. Tighten the tension on the alternator belt by moving the alternator back and keeping tension on it by holding it back with a long screwdriver. While the alternator belt is tight, use a socket wrench to tighten up the bolt on the alternator.

6 Place the serpentine belt back on the pulleys and then use a socket wrench on the bolt on the front of the tension pulley. Once the serpentine belt is tight, tighten up the bolt in the middle of the tension pulley.

7 Start the Mitsubishi Lancer's engine to test the alternator belt and make sure it is working properly. Once you have verified it is working, turn the engine off.

Hello! First see Serpentine Belt configuration diagram below... Alternator is part "C"...

If you have a voltmeter...read across the battery with engine off...Record...Start engine read again...Voltage must be 1.8 -2 volts higher; This means Alternator is working...

To Remove:disconnect (-) battery cable...Air Inlet Duct...Serpentine Belt (idler pulley maintains tension)...Heater hose brace...Wiring from Alternator...Mounting bolts...Remove alternator...

To Install: Install Alternator loosely...Tighten Rear Bolt to 37 ft. lbs...Front bolt to 18ft. lbsTighten Brace to Intake to 18ft lbs....Connect wiring...Install belt...Adjust Idler Pulley so belt moves less than 3/4" when tight...Connect (-) battery cable....Re-test as noted above...Guru...........Saaile







I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

Hello there,
To replace the alternator in your car:
Open the Escape's hood, and examine the belt-routing diagram on the fan shroud. This will show you the location of the alternator and the serpentine belt tensioner.
Pull the serpentine belt tensioner away from the serpentine belt with the serpentine belt tool far enough to allow you to dislodge the belt from the alternator pulley with your other hand.
Unplug the wiring harness from the back of the alternator by hand. Remove the ground harness from the alternator with the socket set.
Unbolt the alternator from the alternator bracket with your socket set. Lift the old alternator out of the bracket by hand.
Compare the old alternator to the replacement alternator before installing the replacement. Make sure they're both physically identical before continuing. If not, take them both to the parts store to match up a proper replacement.
Set the replacement alternator in the alternator bracket by hand. Bolt it in with the socket set. Plug the wiring harness in by hand and bolt the ground harness to the back of the alternator with the socket set.
Install the serpentine belt on the replacement alternator in reverse of how you removed it from the old alternator.
All the best. Elect_Comp

Try This:

To install:

1. Install the belt, routing it properly through the drive pulleys.
2. Check the belt tension with a suitable belt tension gage.
3. Move the alternator until the gage indicates the proper tension.
4. Tighten the alternator adjusting bolt to 15 ft. lbs. (20 Nm

Hello, Alternators are a car part that can be very costly to fix because of labor costs. But with an hour or two of time and a little elbow grease, you can do it yourself. And to replace the alternator follow the following steps below:

Step 1. Pull your car into the garage or your work area. Turn the car off and let it sit for a while to cool.

Step 2. Begin by disconnecting the negative cable of the battery.

Step 3. Remove the serpentine belt from the pulley on the alternator. Do this by using a socket wrench to turn the serpentine automatic belt tensioner so that it allows slack in the belt. Then simply slip the belt off the alternator pulley.

Step 4. Locate and disconnect all the mounting bolts on the alternator, use a vehicle specific manual if you have any trouble.

Step 5. Disconnect all wires attached to the alternator then remove the alternator from the car.

INSTALLING NEW ALTERNATOR.

Step 1. Slide the new alternator into place. Do not worry about the serpentine belt yet.

Step 2. Replace the bolts that held the previous alternator to secure the new one in place.

Step 3. Attach the wires to the new alternator the same way they were attached to the old one.

Step 4. Adjust the serpentine belt tensioner the same direction you did in Section One to put slack in the belt. Wrap the belt around the pulley of the new alternator and then remove the socket wrench from the automatic belt tensioner.

Step 5. Inspect the belt to be sure it is not snug and follows the path required in the pulley and belt configuration diagram.

Step 6. Hook the negative battery wire back to the negative terminal on the battery.

Thanks

Removing the Old Alternator Step1 Pull your Mazda into the garage or your work area. Turn the car off and let it sit for a while to cool. Step2 Begin by disconnecting the negative cable of the battery. Step3 Remove the serpentine belt from the pulley on the alternator. Do this by using a socket wrench to turn the serpentine automatic belt tensioner so that it allows slack in the belt. Then simply slip the belt off the alternator pulley. Step4 Locate and disconnect all the mounting bolts on the alternator, use a vehicle specific manual if you have any trouble. Step5 Disconnect all wires attached to the alternator then remove the alternator from the Mazda. Installing the New Alternator Step1 Slide the new alternator into place. Do not worry about the serpentine belt yet. Step2 Replace the bolts that held the previous alternator to secure the new one in place. Step3 Attach the wires to the new alternator the same way they were attached to the old one. Step4 Adjust the serpentine belt tensioner the same direction you did in Section One to put slack in the belt. Wrap the belt around the pulley of the new alternator and then remove the socket wrench from the automatic belt tensioner. Step5 Inspect the belt to be sure it is not snug and follows the path required in the pulley and belt configuration diagram. Step6 Hook the negative battery wire back to the negative terminal on the battery.