How do you replace a serpentine belt pulley?
Using the breaker bar or serpentine belt tool, move the tensioner arm against the spring as far as it will move, to its stop. The tensioner arm should move smoothly throughout its range of travel, with firm spring pressure and without binding. Most tensioner pulleys can be replaced independently of the tensioner itself.
What causes a serpentine belt to be out of alignment?
Angular misalignment—the pulley is at an angle to the other pulleys—results from worn bearings in an accessory. Belt tension on the pulley pulls the shaft off center, which puts that pulley out of alignment with the other pulleys. Pulley alignment can be checked with a straightedge. Place the straightedge across two pulley faces.
Why is coolant leaking from my serpentine belt?
Coolant leaking from the weep hole means it is time for a new water pump, but it also may indicate that the water pump bearings are worn. If the water pump is leaking, check the serpentine belt for signs of fluid contamination.
How can I test my idler pulley for wobble?
There should be no wobble and no lateral play. Idler pulleys are checked the same way. Next, test the tensioner spring and arm operation. Using the breaker bar or serpentine belt tool, move the tensioner arm against the spring as far as it will move, to its stop.
Using the breaker bar or serpentine belt tool, move the tensioner arm against the spring as far as it will move, to its stop. The tensioner arm should move smoothly throughout its range of travel, with firm spring pressure and without binding. Most tensioner pulleys can be replaced independently of the tensioner itself.
Angular misalignment—the pulley is at an angle to the other pulleys—results from worn bearings in an accessory. Belt tension on the pulley pulls the shaft off center, which puts that pulley out of alignment with the other pulleys. Pulley alignment can be checked with a straightedge. Place the straightedge across two pulley faces.
What kind of pulley is in a Chevy?
Pulley Kit, Serpentine, Aluminum, Silver Powdercoated, Chevy, Small Block, Kit Pulley Kit, Serpentine Conversion, Aluminum, Polished, Chevy, Small Block, Kit Pulley Kit, Serpentine, Aluminum, Silver Powdercoated, Chevy, Small Block, Kit Pulley Kit, Serpentine, Aluminum, Clear Powdercoated, Chevy, Small Block, Kit
Coolant leaking from the weep hole means it is time for a new water pump, but it also may indicate that the water pump bearings are worn. If the water pump is leaking, check the serpentine belt for signs of fluid contamination.
Many have a ½” square cast into the tensioner arm, in which you insert a ½” breaker bar, or Belt Tensioner Tool to relieve the tension. Many others, you use a socket on the pulley itself to do this. Use a ratchet or breaker bar that fits into the bolt and release the tensioner.
Where do I find the serpentine belt on my car?
To access the serpentine belt, you will need to open the hood of the vehicle. The hood release can usually be found near the door on the driver’s side of the vehicle. With the hood released, you will also need to release the safety latch located at the front of the vehicle.
How often should you change your serpentine belt?
Serpentine belts can last for years and might only need to be changed once or twice over the life of the vehicle. The recommended industry standard is to inspect your belt at 60,000 miles for wear & tear and replace if necessary, and replace every 90,000 miles regardless of the appearance in order to reduce the chances of a breakdown.
How to replace serpentine belt 02-09 Chevy Trailblazer?
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Many have a ½” square cast into the tensioner arm, in which you insert a ½” breaker bar, or Belt Tensioner Tool to relieve the tension. Many others, you use a socket on the pulley itself to do this. Use a ratchet or breaker bar that fits into the bolt and release the tensioner.
How is the tension set on a serpentine belt?
Depending on the application, your serpentine belt will either have tension placed on it using a movable bracket or an auto tensioner pulley. This pulley uses an internal spring to apply consistent pressure to the belt at all times. If your vehicle does not have a tensioner pulley, the alternator bracket is likely how tension is set on the belt.
Serpentine belts can last for years and might only need to be changed once or twice over the life of the vehicle. The recommended industry standard is to inspect your belt at 60,000 miles for wear & tear and replace if necessary, and replace every 90,000 miles regardless of the appearance in order to reduce the chances of a breakdown.
Can a V belt be used as a serpentine belt?
While most cars today only have a serpentine belt to control various systems, some vehicles have other belts. For example, select older rides may have a series of V belts in place of the serpentine belt.
How much does it cost to replace a serpentine belt?
For just the parts, most serpentine belts retail for $15 to $45, but if you needed to hire a mechanic to replace it, then the costs could increase to anywhere from the shop minimum, often around $75 to as much as $200 if the part is difficult to access and/or install for both the parts and the professional install.
How long does it take to replace the serpentine belt?
For professional automotive technicians with the right tools and training the replacement of a serpentine belt usually takes about 30 min to an hour. This time varies by the make, model, and year of vehicle that you’re driving as some take longer than others.
How often should you replace the serpentine belt?
Serpentine belts can last for years and might only need to be changed once or twice over the life of the vehicle. The recommended industry standard is to inspect your belt at 60,000 miles for wear & tear and replace if necessary, and replace every 90,000 miles regardless of the appearance in order to reduce the chances of a breakdown.
How do I know if my serpentine belt needs replaced?
Look for signs of damage or wear on the belt. Once you have located the serpentine belt, inspect it visually for signs of damage. If the belt is frayed, coming apart, or has marks that indicate that it has been rubbing on something, it will need to be replaced.
What causes a serpentine belt to come off?
Belt coming off: Pulley misalignment, belt misalignment on pulley, defective tensioner, or bearing wear in tensioner, idler or driven accessories Belt noise can be hard to isolate, as the sound may seem to be coming from an accessory drive, such as the alternator or air conditioning compressor.
What causes glazing at the edges of a serpentine belt?
Glazing at the edges of a serpentine belt, or on its ridges or in the grooves, results from the belt slipping. It indicates that friction between the belt and the accessory drive pulley (s) created by slipping has overheated the belt. Fraying at the edge of a belt indicates pulley misalignment.
How do you change the serpentine belt on a Honda Accord?
The tensioner pulley is the one on the left with an arrow pointing toward it. We will release the tension on this pulley, then slide the old belt off. To release the tension on the tensioner pulley, put a 14mm wrench onto the nut-head on the tensioner pulley (A), and pull the wrench toward the front of the car as shown.
Belt coming off: Pulley misalignment, belt misalignment on pulley, defective tensioner, or bearing wear in tensioner, idler or driven accessories Belt noise can be hard to isolate, as the sound may seem to be coming from an accessory drive, such as the alternator or air conditioning compressor.
Glazing at the edges of a serpentine belt, or on its ridges or in the grooves, results from the belt slipping. It indicates that friction between the belt and the accessory drive pulley (s) created by slipping has overheated the belt. Fraying at the edge of a belt indicates pulley misalignment.
There should be no wobble and no lateral play. Idler pulleys are checked the same way. Next, test the tensioner spring and arm operation. Using the breaker bar or serpentine belt tool, move the tensioner arm against the spring as far as it will move, to its stop.
How do you change the serpentine belt on a Mercedes Benz?
Turn the nut counterclockwise to release tension from the belt. Then, insert a small punch or Allen key into the hole to keep the tensioner locked in position. Number 3 in Figure 4 represents the nut (hexagon) you will need to turn counterclockwise. Number 4 represents the pin locking the tensioner.
How do you replace the serpentine belt on a Mercedes C class?
There is one clip holding the hose to the radiator support. It must be turned 90 degrees. There are also two clips holding the hose to the elbow. Pry these clips up to unlock them, and then pull the hose towards the front of the engine. Figure 7. The arrows point to the clips holding the intake hose. You will now need to loosen two hose clamps.
Where is the tensioner on a serpentine belt?
Your diagram should indicate where the tensioner is located. Use your ratchet and socket to rotate the belt tensioner to relieve tension on the belt. Then slip the serpentine belt off one of the pulleys. If you need more leverage, use a breaker bar.
What does the pulley on a belt tensioner do?
The pulley is what allows the movement of the drive belt. The spring keeps the drive belt in its correct tension. The tensioner arm is a mechanism that allows for the adjustment or the removal of the drive belt. It delivers enough slack on the drive belt for easier adjustments. The base is what holds all the different parts together.
When to replace serpentine belt tensioner — Ricks free?
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. A belt tensioner pulley arm should not move more than 1/32”.
When to replace serpentine belts on a radiator?
Recommend new hoses (and clamps) if a customer is changing a water pump, radiator or heater core. Serpentine belts can be tricky to replace because of the way in which they are routed and because of limited access in a tight engine compartment.
What causes a belt tensioner pulley to squeak?
Tensioner pulley wear will cause your pulley to squeak. A worn out pulley bearing or a worn spring in the tension pulley can also cause squeaking or a chirp. I show you how to use water to identify what type of squeak problem you have and then how to find the problem.
What makes a serpentine belt make a squealing noise?
The tensioner is a self-adjusting pulley that maintains pressure on the belt to reduce slipping. At times, the bearings in the tensioner pulley become worn. This causes the squealing noise. Check these bearings when performing a belt change. Serpentine belts have that name for a reason.
How did the serpentine belt get its name?
The serpentine belt is aptly named for the way it snakes around the pulleys inside the engine bay. This long, winding rubber belt powers many of the important systems of your vehicle by transferring power from the engine’s crankshaft to the accessory pulleys.
Depending on the application, your serpentine belt will either have tension placed on it using a movable bracket or an auto tensioner pulley. This pulley uses an internal spring to apply consistent pressure to the belt at all times. If your vehicle does not have a tensioner pulley, the alternator bracket is likely how tension is set on the belt.