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how do you adjust the serpentine belt tensioner

by Miss Dessie Ruecker Published 3 years ago Updated 3 years ago

How do you adjust the serpentine belt tensioner?

  • Open the hood and locate the adjustment screw that controls tension on the serpentine belt.
  • Place the socket end of the socket wrench over the wing-nut and turn clockwise to apply tension.
  • Check the tension of the belt periodically.
  • Do a secondary check of the belt tension.

Locate the adjuster bolt on the belt tensioner used to secure the serpentine belt, and adjust the tension by loosening or tightening the adjuster bolt with a racthet and socket while you simultaneously move the belt back and forth gently to find the proper tension.

Full Answer

How do I adjust tension on my serpentine belt?

  • Squeaking or Grinding Noise.
  • Unusual Belt Wear.
  • Failure of the Belt-driven Accessories to Operate.
  • Bleeding Rust and Presence of Cracks.
  • Excessive Wear of Pulley Bearing.
  • Visible Signs of Pulley Wear.

When and how to change a serpentine belt?

Part 1 Part 1 of 3: Finding the Serpentine Belt Download Article

  1. Pull the hood release inside the cabin of the vehicle. To access the serpentine belt, you will need to open the hood of the vehicle.
  2. Disconnect the battery. You should always disconnect your battery before starting an automotive project.
  3. Locate the serpentine belt. ...
  4. Look for signs of damage or wear on the belt. ...
  5. Find the serpentine belt routing diagram. ...

How do you change a serpentine belt?

  • Open the hood and locate the adjustment screw that controls tension on the serpentine belt.
  • Place the socket end of the socket wrench over the wing-nut and turn clockwise to apply tension.
  • Check the tension of the belt periodically.
  • Do a secondary check of the belt tension.
  • Do a final check.

Should I Change my serpentine belt?

When should I change my serpentine belt Honda Civic?

  • Locate the belt tension bolt in your Honda Civic's engine bay.
  • Place the belt tensioner on the bolt inside the engine bay then turn it counterclockwise to loosen the belt.
  • Pull the old belt off of the engine pulleys manually then discard it.

Can automatic belt tensioner be adjusted?

Cars equipped with an automatic belt tensioner adjust themselves over time and do not require adjustment. This article shows you the process to adjust drive belts on a pivot-style belt adjuster.Jul 22, 2016

How do you reset a tensioner pulley?

1:313:51How To Collapse and Reset a Hydraulic Timing Belt TensionerYouTubeStart of suggested clipEnd of suggested clipPut it in that hole there that's going to lock the plunger into the housing. You want to make sureMorePut it in that hole there that's going to lock the plunger into the housing. You want to make sure it comes through the other side.

How do you align a tensioner pulley?

1:543:04Water Spray Test for Pulley Misalignment - YouTubeYouTubeStart of suggested clipEnd of suggested clipLook for the next shortest belt span and spray again where the belt enters the second pulley in theMoreLook for the next shortest belt span and spray again where the belt enters the second pulley in the span. If the noise goes away and then returns. You have identified the location of the misalignment.

Do you have to bleed a timing belt tensioner?

If the tensioner/actuator is affected by the "sponge state" then a bleed out procedure is required and failure to do so can lead to the timing belt jumping teeth causing expensive engine damage.Jan 16, 2018

Can a belt tensioner making noise?

If any tensioner pulley begins to wear out with time, it'll create more of a chirping noise. You'll also hear the chirping noise if the pulley grooves are damaged. This happens over the years due to friction, leading to cracks in the belt.Oct 16, 2021

Does a belt tensioner supposed to move?

The tensioner arm should move smoothly and freely. Solution: If you notice a binding, sticking or grinding tensioner arm, the tensioner should be replaced.

How tight should a tensioner pulley be?

When twisted either way from the middle, the tension in the belt must not be more than 12 inch. The belt is too tight if it is twisted more. The positions do not work for the vehicle.

What does a misaligned serpentine belt sound like?

Misalignment angles of as little as three degrees can cause an annoying chirp as well as increase the chances of the belt jumping its pulley. Insufficient belt tension adds to the likelihood of belt loss. Misalignment (and the resulting noise) is most pronounced on short spans between pulleys.

How to adjust serpentine belt tensioner?

Locate the adjuster bolt on the belt tensioner used to secure the serpentine belt, and adjust the tension by loosening or tightening the adjuster bolt with a racthet and socket while you simultaneously move the belt back and forth gently to find the proper tension . You will know that you have the right amount of tension when you can twist the belt about half a turn with your thumb and finger. Less than half a turn is too much tension, and more than half a turn is not enough. If you wish to remove the serpentine belt, simply loosen one of the pulleys with a ratchet and socket, and slip the belt off with your hands.

How to remove a serpentine belt from a car?

Step 1. Disconnect the negative battery cable with a ratchet and socket, and locate the serpentine belt system near the front of the engine. Some automobiles will have the belt system on one side of the engine, and will therefore require removal of one of the front tires. If this is the case with your vehicle, you will need to lift the front ...

What happens if you don't adjust your belt tensioner?

As such, if your belt tensioner is not adjusted correctly, components like the alternator, power steering pump and water pump will not function properly. The good news is, adjusting it is a fairly simple procedure, so you can save a good deal of money by doing the job yourself.

Why do you need an automatic belt tensioner?

An automatic belt tensioner is spring loaded in order to naturally apply the proper amount of tension to the serpentine belt, which winds through the engine pulleys and is used to power multiple peripheral devices . As such, if your belt tensioner is not adjusted correctly, components like the alternator, power steering pump ...

How to tighten a serpentine belt?

Place the socket end of the socket wrench over the wing-nut and turn clockwise to apply tension. It is likely not possible to adjust this by hand, so check your socket set for a socket that will fit snugly over the wing-nut so that you can tighten the nut, thereby applying more tension to the serpentine belt.

Why is it important to keep the tension on a serpentine belt?

Because the serpentine belt is negotiated through multiple pulleys, it is important to keep the proper tension on the belt. Most serpentine belts have an auto-tensioner that automatically keeps the proper tension on the belt. However, some belts have an adjustment screw that applies tension to the belt. If the serpentine belt is too loose, your ...

What to do if your alternator is whining?

If you notice any whine or "pulsing" sound from the alternator, your belt tension is too tight and will damage the alternator. In this case, turn the adjustment screw counterclockwise to loosen the belt and recheck the tension. Do a final check. You can also check for continuous power from all your accessories.

What happens if the serpentine belt is too loose?

If the serpentine belt is too loose, your alternator will not properly charge your battery and your accessories may not work properly. To correct the problem, tighten your belt.

Why is my belt tension wrong?

For example, if your headlights pulse, then it is because the alternator is not delivering a constant charge to your battery. This is normally because your belt tension is too tight.

How much play should a belt have?

To do this, grab any area of the belt that is between two pulleys with your fingers. There should be approximately 1/4 inch play in the belt for most vehicles.

What happens when a serpentine belt is loose?

If the serpentine belt is loose, the belt grooves may begin to melt and glaze over. Glazing is easy to spot, as it will look shinier than the rest of the rubber the belt is made of. Glazing occurs as the belt passes over pulleys without placing enough tension on them to actually make them turn with the belt.

What is serpentine belt?

The serpentine belt is routed around pulleys that drive your vehicle’s accessories. If a pulley on one of the accessories seizes or fails to turn it will likely destroy the serpentine belt, but it’s important to consider that a belt that’s too tight will often lead to seizing pulleys.

What does it mean when a serpentine belt is shiny?

If the edges of your serpentine belt are shiny, the belt is too loose and needs to be tightened. If the belt is showing sign of wear like polished edges, it likely will need to be replaced. A frayed belt edge, however, means the belt is misaligned.

What happens if you loose your power steering belt?

Because the air conditioner and power steering in your vehicle are both powered by the serpentine belt, a loose belt may result in both or either failing to work or behaving oddly. A loose belt may even cause both to work intermittently.

How to stop a squealing belt?

1. Turn the vehicle off and remove the keys from the ignition. While you may want to inspect the belt with the motor running to identify the source of a squeal, you will need to turn it off in order to closely inspect the belt. Do not get close to the belt until the engine is safely off.

Where is the serpentine belt located?

The serpentine belt may be located at the front, rear, or side of the engine as you see it in the vehicle’s engine bay, and is used to power vehicle accessories like air conditioning, power steering, and the alternator.

Do you need a tension gauge for serpentine belts?

In many applications, the serpentine belt needs only to be reasonably tight. Because of this, a belt tension gauge is not necessary for most vehicles. Instead, use a ruler to measure the distance between the two furthest pulleys and find the midway point.

How to adjust serpentine belt tension?

To adjust the tension in the belt, the generator needs to be moved towards or away from the engine, and the belt is adjusted by tightening or losing the pivot screws on the generator.

How to adjust belt tension on a pulley?

To adjust the tension of the belt in the pulley system, reach out to the tensioner pulley. Take the help of manufacturer manual to guide you through the parts of the engine system. Pull the one half of the pulley out.

How to loosen a generator belt?

To loosen the belt, move the generator towards the engine by the hammer handle. Loosen the screws on the pivot section and pull the belt out. Move the generator back in position and check the tension. If the tightness feels right, bolt the screws back to pivot.

Why does my serpentine belt make a squeaky noise?

If the tension in the serpentine belt is not right , it will start producing squeaky noise. That is when you have to take the hint and check the position of the belt.

Why is a serpentine belt important?

Needless to say, the serpentine belt plays a key role in the operation of your vehicle. In caseit does not function correctly, you run the chance of getting stranded any point of time if your steering loses control, or engine is overheated and stops generating power and several other reasons.

What is the main factor responsible for serpentine belt operation?

The tension in the serpentine belt is the main factor responsible for its operation. In case you miss to get the right tension on the belt, it is sure to produce noise while in function.

How often should serpentine belt tension be checked?

Therefore, the tension of the belt should be checked frequently – may be in a fortnight or monthly, along with its general condition. That said, the serpentine belt should not be too tight also in the engine system.

What is serpentine belt tensioner?

A serpentine belt tensioner is also a dampening mechanism. Every time a cylinder fires it produces a power pulse that pulls the belt tighter. Inbetween power pulses the belt tension relaxes.

How much can a belt tensioner pulley move?

A belt tensioner pulley arm should not move more than 1/32”. Once worn, that same pulley arm can move up to ¼”; it almost “dances” as the engine runs. That dancing movement creates a vibration, almost like plucking a guitar.

Why does my belt flutter?

Belt flutter causes tensioner idler movement. observe it while the engine is running. A good belt tensioner will dampen the power pulses so much that the tensioner pulley arm barely moves. As the dampener wears the pulses cause the belt to flutter and that can be seen on the pulley arm.

What does it mean when your belt tensioner is worn?

You may think a worn tensioner just means your belt loses tension; you’d be wrong. It’s just the opposite. A worn tensioner actually increases tension on the belt and that increased tension can damage the nose bearings on your AC compressor, power steering pump and alternator. Here’s why.

What is the movement of a belt called?

This belt movement is called belt flutter.

How to keep serpentine belt tension?

In order to keep the proper tension on your vehicle's serpentine belt, a drive belt tensioner is used. This is a pulley that is either mounted to an adjustable pivot point or a spring mechanism. If you open up the hood of your car, you'll see that the serpentine belt is on the front of your engine. It is the long one.

What happens when you turn on the drive belt tensioner?

As the drive belt tensioner continues to break down, a variety of aspects of your vehicle will start to suffer. It can affect your alternator, power steering, and your air conditioning since they are all powered through the drive belt.

Why does my drive belt tensioner wear down?

The drive belt tensioner can wear down over time, just due to normal wear and tear. It’s a good idea to have it inspected each time you have your belt system looked at. The goal is to replace it before it actually breaks down, and causes your vehicle to run less than perfectly.

Where is the pulley on a belt?

The pulley itself is found on the outside of the belt, which is how it adds tension or pressure. The problem with the drive belt tensioner is that once it goes, it usually means replacing the pulleys and sometimes the drive belt itself. It’s not usually a one-part replacement job. While there is no set lifespan for the drive belt tensioner, ...

How long do drive belts last?

Drive belts typically last anywhere between 40,000 and 70,000 miles. There aren't a lot of warning signs that a drive belt tensioner has hit the end of its lifespan, in fact there is really only one.

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