Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to replace the pulley of the tensioner roller of the Poly-V belt

Model: (Various brands) Various
Part: V-belt

In this video tutorial, we can see how to replace the pulley of the tensioner roller of the Poly-V belt, following some fundamental steps: the reasons for needing to replace the tensioner pulley can vary, such as jams or noises at engine start or during operation. To replace the tensioner pulley, the belt must be removed. The materials needed for this job include a new tensioner pulley kit, a set of specific tools, a torque wrench, anaerobic sealant, WD-40 lubricant spray, and a wire brush. Lift the bonnet and secure it with the appropriate prop. In some vehicles, it may be necessary to remove the wheel and some body parts; in others, access can be made from the right front wheel arch. You can take a photo or draw a diagram of the belt routing. Loosen the serpentine belt, release the tensioning mechanism, attach a suitable tool to the tensioner, and move it to one side; after loosening the belt, remove it from one of the pulleys, return the tensioning mechanism to its original position, and remove the belt from the other pulleys as well. Check if the various parts show any damage and replace them if necessary. Remove the pulley cover and unscrew the pulley fastening element, then remove it. Clean the tensioner seat and install the new pulley with a new fastening element.

Updated on 19 June 2026 by ScegliAuto

Video tutorial

Related tutorials

How to replace the Poly V belt on a vehicle
How to replace the Poly V belt on a vehicle
(Various brands) Various .. noises, it is necessary to replace the Poly V belt. To perform this operation, we need to remove the front right wheel because this type of belt.. …
Replacing a Car Alternator
Replacing a Car Alternator
(Various brands) Various In this video, you will see how to replace the alternator on a generic car. In fact, on most cars, the disassembly procedure is quite similar: essent…
How to Replace the Alternator Pulley
How to Replace the Alternator Pulley
(Various brands) Various To replace the alternator pulley, you need to use a specific kit following the steps outlined below. Once the alternator is removed, secure it in a v…

Other guides you may be interested in

How to Bleed the Clutch on a Renault Clio?

To bleed the clutch on a Renault Clio, open the bonnet to access the components located in the engine bay: here, you will need to undo the screws that secure the battery in its housing, the intake manifold, and the coolant reservoir. This will allow you to locate the pipe through which the brake fluid flows: by inserting the other end of the pipe into a container, you can press the clutch pedal to expel all the fluid until it fills the container.

Watch the video!


by ScegliAuto

More videos