Question about 2004 Ford F250

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2004 F250 Turbo Diesel alternator pulley

I am trying to find the pulley that will release or loosen the alternator belt so I can install a new alternator. I have already removed the old alternator.

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The belt tensioner is on the lower left of the engine there is a 1/2 drive square hole on the right hand side pulley arm to release the tension its a pain to get at but you can, sometimes it is easier from the bottom

Posted on Nov 22, 2008

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How to replace the power steering belt on a 4g13



ADJUSTMENT

Excessive belt tension will cause damage to the alternator and water pump pulley bearings, while, on the other hand, loose belt tension will produce slip and premature wear on the belt. Therefore, be sure to adjust the belt tension to the proper level.
To adjust the tension on a drive belt, loosen the adjusting bolt or fixing bolt locknut on the alternator, alternator bracket or tension pulley. Then move the alternator or turn the adjusting bolt to adjust belt tension. Once the desired value is reached, secure the bolt or locknut and recheck tension.


REMOVAL & INSTALLATION

1.5L, 1.6L, 1.8L, 2.0L and 2.4L Engines


0900c15280037bf7.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Accessory V-belt routing-Mitsubishi 1.5L, 1.6L, 1.8L, 2.0L and 2.4L engines
Alternator Belt


0900c15280037bf8.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Loosen the adjuster lock bolt . . .


0900c15280037bf9.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. . . . then remove the alternator belt from the engine

  1. Loosen the alternator support nut.
  2. Loosen the adjuster lock bolt.
  3. Rotate the adjuster bolt counter clockwise to release the tension on the belt.
  4. Remove the belt.

To install:
  1. Install the belt on the pulleys.
  2. Rotate the adjuster bolt clockwise until the proper tension is reached.
  3. Tighten the adjuster lock bolt and the alternator support nut.

POWER STEERING BELT


0900c15280037bfa.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. After the adjusting and fixed bolts are loosened, rotate the pump . . .


0900c15280037bfb.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. . . . then remove the power steering belt from the engine

  1. Remove the alternator belt as described above.
  2. Loosen the power steering pump adjusting bolts.
  3. Remove the power steering pump fixed bolt on the rear of the bracket.
  4. Rotate the pump toward the engine and remove the belt.

To install:
  1. Install the belt on the pulleys.
  2. Rotate the pump until the proper tension is reached.
  3. Tighten the adjusting bolts on the pump.
  4. Tighten the fixed bolt on the rear of the bracket.
  5. Install the alternator belt.

A/C COMPRESSOR BELT
  1. Loosen the tension pulley and remove the belt.
  2. The installation is the reverse of the removal.

3.0L DOHC, 3.0L SOHC Galant, and 3.5L Engines


0900c15280037bfc.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Serpentine belt routing-Mitsubishi 3.0L engines (except 1998-00 Galant models)


0900c15280037bfd.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Accessory V-belt routing-Mitsubishi 3.5L and 1998-00 3.0L SOHC Galant engines
ALTERNATOR AND A/C COMPRESSOR

  1. Disconnect the negative battery cable.


CAUTION Wait at least 90 seconds after the negative battery cable is disconnected to prevent possible deployment of the air bag.
  1. Raise and safely support the vehicle and remove the front undercover.
  2. Loosen the tension pulley fixing nut and relieve the tension on the belt by turning the adjusting bolt.
  3. Remove the belt.

To install:
  1. Install the belt on the crankshaft and alternator pulleys.
  2. Using the adjusting bolt on the tensioner, tighten the belt to the desired tension.
  3. Tighten the fixing nut to hold the adjustment.
  4. Install the undercover and lower the vehicle to the floor.
  5. Connect the negative battery cable.

POWER STEERING BELT
  1. Disconnect the negative battery cable.


CAUTION Wait at least 90 seconds after the negative battery cable is disconnected to prevent possible deployment of the air bag.
  1. Raise and safely support the vehicle and remove the undercover.
  2. Remove the alternator and A/C compressor belt.
  3. Lower the vehicle and remove the cruise control pump link assembly.
  4. Place the power steering hose under the oil reservoir.
  5. Loosen the tension pulley fixing bolts and remove the power steering pump drive belt.

To install:
  1. Install the power steering pump drive belt.
  2. Insert an extension bar or equivalent into the opening at the end of the tension pulley bracket and pivot the pulley to apply tension to the belt.
  3. Tighten the fixing bolts.
  4. Raise the vehicle and install the alternator and A/C compressor belt.
  5. Install the undercover and lower the vehicle.
  6. Connect the negative battery cable.

3.0L SOHC Diamante
  1. Disconnect the negative battery cable.
  2. Loosen the lockbolt on the face of the A/C tensioner pulley.
  3. Turn the adjusting bolt of the A/C tensioner pulley to loosen the tension of the A/C belt.
  4. Remove the A/C compressor belt.
  5. Loosen the locknut on the face of the power steering/alternator tensioner pulley.
  6. Turn the adjusting bolt of the tensioner pulley to loosen the tension of the belt.
  7. Remove the power steering/alternator belt.

To install:
  1. Install the power steering/alternator belt first and then the A/C compressor drive belt.
  2. Adjust the belts to the proper tension by turning the adjusting bolts and tighten pulley fixing nut/bolt.
  3. Tighten the mounting nut of the power steering/alternator tensioner pulley to 36 ft. lbs. (50 Nm).

Mar 21, 2013 | 1996 Mitsubishi Mirage

1 Answer

How to change altenater belt on 87' cabi



INSPECTION

Inspect the belts for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will usually start at the inner edge of the belt and run outward. All worn or damaged drive belts should be replaced immediately. It is always best to replace all drive belts at one time, as a preventive maintenance measure, during this service operation.


CHECKING TENSION AND ADJUSTMENT

See Figure 1
The belt tension on most driven components is adjusted by moving the component (alternator, power steering pump etc.) within the range of a slotted bracket. Some brackets (toothed) use a rack and pinion mechanism which moves the alternator side-to-side to adjust the belt tension. With this configuration, no prying tools are required. On Quantum (except 5 cylinder) and Fox models, the air conditioner compressor drive belts are adjusted by varying the number of discs (shims) between the halves of the crankshaft pulley. Before adjusting the belt tension on any engine, look at the mounting and determine what kind of bracket is used.
To check belt tension, push in on the drive belt about midway between the crankshaft pulley and the driven component. If the belt is less than 39.4 in. (1m) long, it should deflect between 0.80-0.120 in. (2-5mm). For longer belts, it should deflect between 0.40-0.060 in. (10-15mm). Belt size is usually printed on the back side of the belt. If it can't be read, it's probably time to replace it.


0900c1528026638b.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 1: To check belt tension, push in on the drive belt about midway between the crankshaft pulley and the driven component
Slotted Brackets
See Figures 2, 3 and 4

  1. Loosen the adjustment nut/bolt in the slotted bracket. Slightly loosen the pivot bolt.
  2. Pull (don't pry) the component outward to increase tension. Push inward to reduce tension. Tighten the adjusting nut/bolt and the pivot bolt.



0900c1528026638c.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 2: Alternator mounting with slotted brackets

  1. Components, such as the power steering pump and some air conditioner compressors, may be mounted with a double slotted adjusting bracket using a threaded bolt and locknut to adjust and maintain tension. Loosen the locknut(s) and slightly loosen the bolt(s) in the slotted groove(s). Turn the threaded adjustment bolt(s) in or out to gain correct tension. Tighten locknut(s) and slotted bracket bolt(s).
  2. Recheck the drive belt tension, readjust if necessary.



0900c1528026638d.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 3: Some components use a double slotted adjusting bracket with a threaded bolt and locknut to adjust and maintain tension. Loosen the locknut (shown) before adjusting the tension bolt


0900c1528026638e.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 4: An extension is helpful when adjusting the tension bolt. Be sure to loosen the nut/bolt on the rear slotted bracket first
Toothed Brackets
See Figures 5 and 6

  1. Loosen the tension bolt and the alternator pivot bolt. These bolts should be loosened until the alternator swings freely under its own weight.



0900c1528026638f.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 5: Loosen the tension bolt (shown) and the alternator pivot bolt until the alternator swings freely under its own weight

  1. Adjust the V-belt by turning the nut on the tension bolt while checking the belt deflection with your thumb.
  2. Once the proper tension is achieved, tighten the tension bolt to 26 ft. lbs. (35 Nm). Tighten the pivot bolt to 15 ft. lbs. (20 Nm).
  3. Recheck the drive belt tension, readjust if necessary.



0900c15280266390.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 6: Adjust the V-belt by turning the nut on the tension bolt
Split Pulley
See Figure 7
On Quantum (except 5 cylinder) and Fox models, the air conditioner compressor drive belts are adjusted by varying the number of discs (shims) between the halves of the crankshaft pulley.

  1. Remove the nuts/bolts securing the tensioner plate and crankshaft pulley halves.
  2. Add or remove the amount of spacer discs between the pulley halves until the belt tension is correct.



0900c15280266391.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 7: Belt adjusting shims on Quantum (except 5 cylinder) and Fox models. Extra shims are stored behind the tensioner plate on Fox and turbo diesel Quantums (shown)
If there are any shims left over, do not throw them away. On Fox and turbo diesel Quantum models, store the extra shims in front of the split pulley (behind the tensioner plate). On Quantums with 4 cylinder gas engines, store the extra shims behind the split pulley (in front of the crankshaft hub).

  1. Secure the pulley halves. Torque the pulley nuts or bolts to 15 ft. lbs. (20 Nm).


REMOVAL & INSTALLATION

If a belt must be replaced, the driven unit must be loosened and moved to its extreme loosest position (usually by moving it toward the center of the motor). After removing the old belt, check the pulleys for dirt or built-up material which could affect belt contact. Carefully install the new belt, it may appear to be just a little too small to fit over the pulley flanges. Fit the belt over the largest pulley (usually the crankshaft pulley at the bottom center of the motor) first, then work on the smaller one(s). Gentle pressure in the direction of rotation is helpful. Some belts run around a third or idler pulley, which acts as an additional pivot in the belt's path. It may be possible to loosen the idler pulley as well as the main component, making your job much easier. Depending on which belt(s) you are changing, it may be necessary to loosen or remove other interfering belts to get at the one(s) you want. Some models have a front engine mount installed through the air conditioner compressor belt circle. Support the engine and remove the mount prior to belt removal and installation.
When buying replacement belts, remember that the fit is critical according to the length of the belt, the width of the belt, the depth of the belt and the angle or profile of the V shape (always match up old belt with new belt if possible). The belt shape should exactly match the shape of the pulley; belts that are not an exact match can cause noise, slippage and premature failure.
After the new belt is installed, adjust it for proper tension. This is sometimes a three or four-handed job; you may find an assistant helpful. Make sure that all the bolts you loosened are retightened and that any other loosened belts also have the correct tension. A new belt can be expected to stretch a bit after installation so be prepared to re-adjust your new belt.
After installing a new belt, run the engine for about 5 minutes and then recheck the belt tension.

May 19, 2012 | 1987 Volkswagen Cabriolet

4 Answers

How to remove alternator on a 2005 range rover


Hi
Click here

the link above should tell you all you need to know if you get stuck or have any problems give me a shout back ok

Oct 26, 2010 | Land Rover Range Rover Cars & Trucks

1 Answer

How to tighten belt on 2004 nissan quest


Best to remove the front passenger side wheel. Then snap out the clips that are holding the plastic cover towards the front. Now it will expose the belt area. Loosen the locking nut of the tensioner(idler) pulley located to the right of the Crankshaft Pulley. Crankshaft pulley is the one that handles both belts (alternator and the power sterring pump). Right to that next to it, upwards is the idler pulley. You will find the alternator pulley to the right of that further up. Open the hood of the van and locate the adjusting nut behind the alternator on the idler pulley from top and loosen that as well. Once both these are loosened, belt will loosen and will be easy to remove. Now replace it with the new belt the same way it was wrapped. Go over the crankshaft pulley; under the A/C compressor pulley; over the alternator pulley; under the idler pulley. tighten the adjusting nut from the top through the hood until the play on the belt (when pressed in) is less than 1 inch. Now lock the tensioner pulley by tightening the locking nut. Start and run the car for 15 mins to see if everything is ok.

Jul 28, 2010 | 2004 Nissan Quest

1 Answer

Need to replace the idle pulley on a ford f250


if it is a 7.3 or 6.0 turbo diesel it will have a duallie tensioner-pulley setup. use a half inch breaker bar or ratchet to grab a hold of the tensioner then turn it very firmly counter clockwise until you can remove the belt. after that use the corresponding size socket and ratchet to loosen the bolt that retains the idler pulley.

Nov 18, 2009 | 2002 Ford F250 Super Duty SuperCab

4 Answers

2000 Dodge Durango Alternator



REMOVAL & INSTALLATION

  1. Disconnect the negative battery cable (both on diesels).
  2. Release tension and remove the drive belt.
  3. Disconnect the wiring harness at the plastic connector.
  4. Remove the output terminal nut(s) and disconnect the output cable.
  5. On diesel engines: loosen, but do NOT remove, the alternator bracket-to-engine bolt.
  6. Remove alternator mounting bolts. Note any shims or spacers in the assembly.
  7. Carefully remove the alternator from the engine.

To install:
  1. Position the alternator on the engine. Be sure to install any shims or spacers.
  2. Install the alternator mounting bolts and tighten to 40 ft. lbs. (54 Nm) for 2.5L and diesel engines, 30 ft. lbs. (41 Nm) for others.
  3. Connect the electrical harness. Connect the output cable and tighten the nut.
  4. Install and the accessory drive belt and check tension.
  5. Connect the negative battery cable.
  6. Check the alternator for proper operation.
Tensioner must be moved to loosen belt
Use a socket and breaker bar to rotate the tensioner and remove the serpentine belt. (see pic)
94233cf.jpg
Depending on your installed accessories and engine size CLICK HERE for a belt routing diagram - it also will show the belt tensioner location.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

Apr 23, 2009 | 2000 Dodge Durango

2 Answers

HOW DO TAKE OFF THE FAN BELT ON A 94 DIESEL TRUCK?


0900c152801e4ff6.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Fig. 8 Accessory serpentine belt routing-7.3L turbo diesel engine

Apr 09, 2009 | 1994 Ford F250 Supercab

1 Answer

1983 GMC G2500 Alternator Belt Diagram


REMOVAL & INSTALLATION Fig. 1: A gauge is recommended, but you can check belt tension with thumb pressure 89771g18.gif
Fig. 2: Loosen the component's mounting and adjusting bolts slightly to remove or adjust the belt(s) 89771g19.gif
Fig. 3: Push the component toward the engine and slip off the belt 89771g21.gif
Fig. 4: Slip the new belt over the pulley 89771g22.gif
Fig. 5: Pull outward on the component and tighten the mounting bolts 89771g23.gif
Fig. 6: Accessory mountings found on 6.2L diesel engines 89771g24.gif
  1. Loosen the driven accessory's pivot and mounting bolts.
  2. Move the accessory toward or away from the engine until the tension is correct. You can use a wooden hammer handle, or broomstick, as a lever, but do not use anything metallic, such as a prybar.
  3. Tighten the bolts and recheck the tension. If new belts have been installed, run the engine for a few minutes, then recheck and readjust as necessary. It is better to have belts too loose than too tight, because overtight belts will lead to bearing failure, particularly in the water pump and alternator. However, loose belts place an extremely high impact load on the driven component due to the whipping action of the belt.

Mar 20, 2009 | 1986 GMC G2500

1 Answer

Alternator belt/pulley diagram for 1992 diesel volkswagen golf.


Is there a diagram on under the hood or on top of the plate over the radiator ?

Feb 03, 2009 | 2003 Volkswagen Jetta TDI

1 Answer

2000 f250 diesel, how do you release the tension on the belt?


There is a tensioner idler somewhere on the engine. Use a wrench and rotate the bolt in the center so that the pulley moves away from the belt, then use the other hand to slide the serpentine belt out from under the idler.
Slowly release the tensioner.

Jan 22, 2009 | 2000 Ford F250 Super Duty Crew Cabs

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