Replacing alternator 2000 mercury couger how to remove belt on tensioner pulley

Everything is driven by the crankshaft pulley at the bottom and is by far the hardest to turn, but it is the driving pulley.

The alternator should turn easily.

The steering pump should turn easily.

The water pump should turn easily.

The AC Compressor is harder.

The Idler and Tensioner should spin freely.

All pulleys should have no discernable lateral movement that would cause wobble. All the pulley should be in alignment with each other. The tensioner should not be TOO tight.

https://www.fixya.com/cars/t10666005-diagram_2000_mercury_grand_marquis

https://www.google.com/search?q=2000+mercury+grand+marquis+serpentine+belt+diagram

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The trick is to wrap the belt around all the grooved pulleys first and leave the smooth idler pulleys for last. Then the belt can just slip on the smooth pulley

Hi, I have pasted the procedure for belt replacement below. To replace the tensioner as well, first take the belt off. Then remove the pulley from the tensioner. This will expose the single bolt that holds the tensioner on. Replace the tensioner and then the pulley (if replacing all). Then reinstall the belt.

Alternator/Power Steering Pump Belt
The alternator/power steering pump belt is provided with a dynamic tensioner to maintain proper belt tension.

1. Disconnect the negative battery cable.
2. Raise the front of the vehicle and safely support it with jackstands.
3. Remove the right front splash shield.
4. Release tension by rotating the tensioner clockwise (use a box-end wrench on the tensioner bolt shown in the picture.
5. Remove the belt and install a replacement.
6. Proper belt tension is maintain by the dynamic tension.
7. Install the right front splash shield. Lower the front of the vehicle.
8. Connect the negative battery cable.
   

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   Fig. Alternator/power steering pump belt tensioner bolt location
   

Hi, pick your engine from among the cases below. Use a wrench or 3/8 inch socket head to rotate the tensioner clockwise. While holding the tensioner, take the belt off the alternator pulley, then release the tension. Leave the belt on the rest of the pulleys. Remove the bolt holding the tensioner to the engine. Note the angle of the tensioner--there is usually some type of index pin to properly orient the tensioner angle on the engine. Replace with the new tensioner, ensuring the indexing pin is in it's hole and insert the bolt. Tighten the bolt well. Turn the tensioner clockwise again and put the belt back on the alternator pulley. Release the tensioner. Start the engine and observe the belt to insure it is properly driving the pulleys and is centered on each one. Please let me know if you have any questions, and thanks for using Fixya.

Fig. Fig. 11: Belt routing with and without A/C-2.0L engine

Fig. Fig. 12: Belt routing with A/C-2.5L engine

Fig. Fig. 13: Belt routing without A/C-2.5L engine

tensioner pulley is only for the a/c of honda accord. belt of alternator can be remove or adjust by the alternator on an axis bolt.

Check under the hood or around the radiator support for the serpentine belt routing.
If you can not locate on then make a DETAIL drawing on the belt routing.
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Move the belt tension and move the pulley to free the belt.
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Set the belt aside on a dry and clean service.
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Remove the negative terminal on the battery.
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Remove the red cable and connector.
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Loosen the alternator mounting bolts and replace with new unit.
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Route belt back onto all pulleys.
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Move the tensioner pulley out of the pathway and loop the belt back
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Reconnect all cables
===== clear all tools off the work area.
re-inspect the belt before starting the engine.

is your serpentine belt loose or worn? also check idler pulley tension..

you can use belt tool or 3/8 long arm ratched place your tool on tensioner (on pulley side has housing to place your tool in , tensioner between alternator and ps pump one bolt arm and plastic pulley on it stand front of the vehicle and push your tool to firewall to relase the belt tensioner and use other hand and remove belt from the alternator then easly let the tensioner go and remember place the new belt on all the pulleys and leave alternator pulley on last place) front of steering pump reservoir have label that shows the belt assembly make sure new belt in correct position on all the pulleys and push the tensioner and place to belt on correct position and make it tight. before start to vehicle fallow the all belt for make sure no missing pulley and belt is placed straight on all the pulleys no missing lines.

Follow service manual procedures given by the manufacturer for the generator you are working on for disassembling, inspecting, testing, and rebuilding AC generators. Remember, improper connections to an AC generator can destroy it.
AC generator removal varies according to the engine size, engine placement, and vehicle accessories (such as power steering and air conditioning). The following is the typical procedure for removal and replacement of the AC generator.

• Place fender covers over the fenders
• Disconnect the battery ground cable

CAUTION Never attempt to remove the alternator or disconnect any wires to the alternator without first disconnecting the battery negative cable.

• Disconnect and label the wiring harness connections to the alternator (Painters Masking tape works very well for labeling Automotive wiring).
• Loosen the alternator pivot bolt.
• Remove the bolt that attaches the alternator to the adjustment arm.
• Rotate the alternator to loosen the drive belt and disengage the belt from the pulley. Be careful that any spacers that are used in mounting are kept with their original bolts. This will make correct reinstallation much easier.
• While supporting the alternator remove the pivot bolt.
• Remove the alternator from the vehicle.

To reinstall the alternator, reverse the removal procedure.
To adjust the belt tension, leave the pivot and adjusting arms loose. Look up the belt tension specification for the vehicle you are working on. Using a belt tension gauge on the belt apply pressure to the alternator until the correct belt tension registers on the gauge and tighten the mounting and adjustment bolts to the specified torque specification.

Hey there MSM,

• Get a 14mm or 9/16" socket and a long handled ratchet or breaker bar.
• Get the belt around all the pulleys except the A/C compressor or Alternator. The routing diagram is on one of the radiator supports.
  
• The tensioner pulley is near the Alternator toward the center of the engine. It's on a spring loaded arm. Get your socket on the center nut of this pulley.
• Slowly pull the ratchet toward the center of the engine. The pulley will pivot on the arm allowing you to get the belt on the final pulley.
  
• Slowly release the tension.
  
• You're done

Mike