Crankshaft pulley: everything you need to know
Content
Crankshaft pulley, also known as damper pulleyis essential for the proper operation of your engine. In particular, it ensures that the engine runs so that it rotates, allowing the vehicle to move forward. Let's find out in this article about the role of the crankshaft pulley and how it works!
🚗 What is a crankshaft pulley?
Crankshaft pulley drive pulley located at the end of the crankshaft, on your chain or timing belt. It is attached to it with a hole, a key and a fixing screw or nut. Consisting of a hub, it has a peripheral part, inside which there is an accessory belt.
Its role is twofold: dampening transmission jerks to extend the life of your vehicle's engine and ensuring that the rotational motion of the engine is transmitted through the auxiliary belt.
En CE Kwai problems pulley maintenance crankshaft, there are no specific recommendations. Accept smooth driving which limits jerking and sudden changes in speed will help the pulley last a long time, but it will also preserve many of the parts that make up your car.
Naturally, it is necessary to check the degree of wear, making sure that the elastic part of the belt does not show any signs of wear. cracks or cracks... It is often replaced when replacing the timing belt.
️ How to disassemble or loosen the crankshaft pulley?
The crankshaft pulley can be disassembled or loose through the screw that secures it. This screw must be removed by turning counterclock-wise.
This screw is often fixed glue (thread lock), so it is easier to remove with wrench pneumatic.
🇧🇷 How to change the crankshaft pulley?
It is advisable to change the crankshaft pulley when replacing the accessory drive belt. In fact, we must be careful that gear distribution saved when the pulley is removed, otherwise you will run into shift distribution.
Required material:
Protective gloves
Toolbox
Pneumatic wrench
New crankshaft pulley
New accessory belt (optional)
New auxiliary belt tensioner pulley (optional) (optional)
Jack
Step 1: Disassemble the crankshaft pulley.
You must disconnect the battery and then jack the vehicle up. Then remove the front right wheel, mudguard, then accessory drive belt and crankshaft pulley retaining screw so that it can be removed.
Step 2. Check the condition of the belt components.
Carefully check the condition of the accessory belt, which should be replaced if necessary. Then also check the condition of the belt tensioner pulley and replace if necessary.
Step 3: Assemble the crankshaft pulley.
Install a new pulley and tighten the fixing screw of the latter. You must then reassemble the accessory drive belt, front right wheel, and mudguard. Now you can reconnect the battery and test the operation of your new pulley by starting the car and driving it for a few meters.
🗓️ When should you replace the crankshaft pulley?
Several signs can alert you to crankshaft pulley wear:
- Charging indicator alternator ;
- Detection of high-pitched noises;
- Constant fluctuations;
- Screeching when starting the car;
- Decreased productivity direction ;
- One less efficient air conditioning;
- One overheating of your engine.
If you encounter any of these situations, be sure to replace the crankshaft pulley to avoid other problems such as a broken timing belt or engine failure due to rubber residues.
?? How much does a crankshaft pulley cost?
The price of a crankshaft pulley can vary greatly depending on the supplier who sells it to you. For example, if you pass network of your car brands, it costs on average 100€.
While if you get it from other suppliers, its price ranges from From 35 € to 70 €. Risk is incompatibility of a new pulley with the one that is already present on your car.
The crankshaft pulley is a part that needs to be taken care of in order to keep all the elements of your distribution and your engine. To play it safe, replace it with one of our trusted mechanics with our comparator!
