How To Install A Drive Belt

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Are you lot hearing a squealing under your hood? If and then the culprit is likely to exist your automotive accompaniment belt, commonly referred to equally a serpentine belt. Though these belts concluding much longer than their predecessor, the 5-belt, they do sometimes demand replaced.

1. i

   Park your machine in a well lit place. This will go far easier to work under the hood. Y'all can also utilize a drop calorie-free or other supplemental lighting if you deem it necessary.

2. 2

   Locate the chugalug in question. Most belts will be constitute on the side of the engine block. Serpentine belts are hands identified considering they weave through several pulleys.^[i] V-belts are looped around two pulleys and there are two or more belts overlapping at a betoken, forming a V-shape. Yous should replace the belt:

   • if it is frayed or tearing.
   • if information technology has cracks or missing chunks.
   • if the chugalug has coolant or oil on it.
   • These conditions make the belt incapable of properly running its components, which tin can lead to major problems for your engine. If for whatsoever reason you cannot locate an accessory belt or gain easy access to it then you should take your vehicle to professional.^[2]

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1. one

   Locate a routing diagram. This tin usually be institute posted underneath the hood of your automobile or in your service manual for serpentine belts (S-belts).^[3] If you lot bulldoze a much older car, yous may accept a multi-belt design (V-belt). Either way, if y'all cannot find a routing diagram you should take a motion picture or depict one before removing the chugalug(s).

   • Be sure to make note of whether the grooved side or flat side of the chugalug makes contact with each pulley. It is important not to put the new chugalug on backwards.

2. 2

   Release the tension on the belt. There are a few things to call back when releasing tension on a belt.

   • For serpentine belts this is done past compressing the spring loaded tensioner.
   • The tensioner is just some other pulley that the belt runs over, but simply serves to keep tension on the belt and does not ability whatsoever accessories.
   • Some tensioners can be compressed past turning them with simple paw tools such as a wrench, and others may require a special tool. Usually twisting the pulley clockwise will compress the spring.
   • V-belts practise non have an automatic tensioner. They can exist removed past adjusting the position of one of their pulleys to release tension.
   • To loosen a caster, turn it with a wrench or specialized tool. By convention, counter-clockwise will loosen the pulley.

3. 3

   Remove the belt. Once tension is released, the belt should slide off of the other pulleys easily.^[4]

4. 4

   Check the pulleys. One reason for a damaged belt is a malfunctioning pulley. Y'all should cheque the tensioner and all pulleys that the belt contacts.

   • Older tensioners might cause a skid in the belt.^[5] If i wobbles or does not spin freely then y'all may need to replace it.^{[half dozen]}

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1. 1

   Compare the new belt to the original. Since these belts need to fit exactly right, the new belt should exist the same length and width as the original.^[7] The but difference should be general habiliment on the old chugalug. The best fashion to insure a perfect lucifer is to compare part numbers.

2. 2

   Run the new belt. Y'all should employ your routing diagram from above to make sure that the belt is run properly. Pulleys with grooves are intended to meet the grooved side of the chugalug, but some apartment pulleys are meant to be driven by the flat backside of the chugalug.^[8] When you lot are done, the belt should weave through the pulleys contacting each pulley only once.

3. 3

   Tighten the belt. You want to make sure that your belt has the proper amount of tension on it.

   • Older tensioners might cause a slip in the belt.^[nine]
   • For serpentine belts use the same tool you used above to compress the tensioner and plow it in the opposite direction (counter-clockwise) until the bound releases.
   • If yous are working with a V-chugalug blueprint and then yous volition demand to tension the belt manually. #*Find the centre of the belt'south longest stretch.
   • Movement that point from side to side and the belt should accept ^one⁄_ii inch (i.3 cm) of movement in either direction. Whatsoever less and the belt is besides tight, whatever more than and information technology is too loose.^[10]
   • Check your vehicle manual for more data. If in uncertainty, consult a mechanic.

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1. 1

   Step dorsum and look at the belt. Does information technology match the routing diagram exactly and await like the belt yous took off? If the belt does not fit properly or is not installed correctly it could damage several important components of your auto such equally the water pump, alternator, etc.

2. 2

   First your car. If possible information technology is best to have a friend showtime your car while you sentinel the belt. Yous desire to be certain that it is running smoothly with no squealing or slipping.^[11] Be careful to go along your pilus and clothing away from whatever moving parts under the hood of your vehicle.

3. three

   Troubleshoot whatsoever problems. If you notice anything wrong such as slack in the chugalug or squealing, consult your routing diagram again. You may demand to re-run the belt or make certain that it is properly tensioned. Y'all should as well check over again to be sure all accessory pulleys are turning freely, including the tensioner. If yous cannot diagnose the problem yous should take your vehicle to a professional person.

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Add New Question

• Question

  What does it mean when your serpentine belt squeals?

  

  Duston Maynes is an Automotive Repair Specialist at RepairSmith. Duston specializes in leading a team that handles a variety of automotive repairs including replacing spark plugs, front and rear restriction pads, fuel pumps, auto batteries, alternators, timing belts, and starter motors. Duston holds an Associate'southward degree in Automotive/Diesel Technology from The Universal Technical Institute of Arizona and is a Certified Diagnostic Technician and Auto Mechanics Technician through BMW Stride. RepairSmith received The 2022 Large Innovation Accolade by Business Intelligence Group and The Startup of the Year by the American Business Awards. RepairSmith was also included in Built in LA's 50 Startups to Watch and The Business Intelligence Group's 52 Names Leading the Way in Customer Service. RepairSmith offers in-home services to provide car owners user-friendly and consummate auto repair everywhere.

  

  Automotive Repair Specialist

  Expert Respond

  A squealing belt could be caused past dissimilar factors, like issues with the chugalug tension, pulleys, or tensioner. Oil on the chugalug could also be the cause of the problem.

• Question

  How exercise you put tension on a belt?

  

  Ed Beery is an Automotive Specialist and the Owner of InTechgrity Automotive Excellence based in Denver, Colorado. With more than eight years of experience, he specializes in providing maintenance and repair services for both individuals and companies. Ed and the InTechgrity Automotive Excellence Squad are approved past the American Automobile Association (AAA) for repairs and are Automotive Service Excellence (ASE) certified.

  

  Automotive Specialist

  Expert Answer

  Slowly release the ratchet when the belt is properly seated in the various pulleys. This allows the tensioner to once again place tension on the belt.

• Question

  How practise yous put tension on a belt without a tensioner?

  

  Ed Beery is an Automotive Specialist and the Owner of InTechgrity Automotive Excellence based in Denver, Colorado. With more viii years of feel, he specializes in providing maintenance and repair services for both individuals and companies. Ed and the InTechgrity Automotive Excellence Team are approved by the American Machine Association (AAA) for repairs and are Automotive Service Excellence (ASE) certified.

  

  Automotive Specialist

  Adept Respond

  Use a pry bar positioned between the alternator and the block, being conscientious not to pinch anything. Apply pressure to the pry bar to add together tension to the belt and tighten the alternator bolts while maintaining tension with the pry bar.

• Question

  How do I change the tension belt on a 2003 Ford Focus ZTW?

  

  Yous probably tin can't. The job requires a special tool and you'll also demand to replace the Belt Tensioner and the pulley the belt rides on. Information technology is a very difficult job and should but be done by a professional.

• Question

  Why does my timing belt have a encompass but the five-chugalug does not? The pulleys and belt are fully exposed.

  

  Yes. Technically, you could drive without a timing encompass too, but since your timing chugalug is lower downwardly to the ground, the cover is there to go along rocks and other road crap from finding its way upwardly there to screw up your belt, water pump, cooling organisation, engine, day, week and possibly life.

• Question

  Can a fan belt exist fit the incorrect fashion?

  

  Logic Johnson Lafontaine

  Pinnacle Answerer

  Yes. If you thread the chugalug dorsum around the wrong side of a pulley, the caster will turn the wrong style, and you will probably destroy whatever information technology'due south driving.

• Question

  What should I do if my alternator belt snaps 24 hours after I put it on multiple times?

  

  Bank check to see if any of the pulleys are wobbling. If then, yous may accept to replace the pulley. Also, check to ensure that the chugalug tension is not overly tight.

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• Clean up whatsoever oil in the vicinity of your belt. Oil dethrone the belt quickly, leading to more than bug.

• If you notice oil or debris on pulleys, y'all should clean them thoroughly with a wire brush and brake cleaner before installing the new belt.

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• Do not put your manus, or whatsoever office of your trunk, into contact with anything spinning or moving on a running vehicle.

• There is But ONE configuration for a serpentine belt. Even if it appears to fit differently than is shown in your routing diagram this tin can lead to pulleys existence turned backwards and cause serious damage to your vehicle.

• Leap loaded tensioners can release quickly and forcefully. If you do not have the proper tools or are uncomfortable releasing/tightening the tensioner then you should take your vehicle to a professional.

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Things You'll Need

• Gloves
• Manus Tools
• Wire Brush
• Restriction Cleaner
• Replacement Belt

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Source: https://www.wikihow.com/Change-an-Automotive-Belt

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