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Can a bad pulley cause a fan belt to break?

Can a bad pulley cause a fan belt to break?

If the fan belt adjuster pulley has any sort of issue it can cause unusual and accelerated wear on the belt. A bad pulley can cause fraying on the edges of the belt, and in severe cases can even cause it to break.

What are the symptoms of a bad fan belt adjuster?

Unusual belt wear. Another symptom of a potential problem with the fan belt adjuster is unusual belt wear. If the fan belt adjuster pulley has any sort of issue it can cause unusual and accelerated wear on the belt. A bad pulley can cause fraying on the edges of the belt, and in severe cases can even cause it to break.

What happens when a radiator fan belt breaks?

When a radiator fan belt breaks, the entire car engine can cease to work. A dead battery is a high possibility. In addition, the break may cause serious damage to the alternator, radiator, steering pump and other parts the belt controls.

What should the tension be on a fan belt?

Check the belt tension. Test the tension at the area where the belt is the longest length between accessories. The amount of tension may be specific to the engine, but generally, it should have no more than about ½ to 1 inch of give.

What causes vibration in a belt drive fan?

Belt-Drive Problems. Problems due to the shafts or pulleys (misalignment, eccentricity, etc.) cause vibration at 1x rpm of the component with the problem (i.e. eccentric pulley on the fan causes vibration at 1x rpm of the fan). Worn belts, on the other hand, will cause vibration at harmonics of belt running speed.

Can a worn belt cause a pulley to vibrate?

Worn belts, on the other hand, will cause vibration at harmonics of belt running speed. The good news, especially in the case of component (belt and pulley) wear, is that belts and pulleys are typically relatively easy to inspect and inexpensive to replace. The bad news is that outside of that, they’re often difficult to correct.

Check the belt tension. Test the tension at the area where the belt is the longest length between accessories. The amount of tension may be specific to the engine, but generally, it should have no more than about ½ to 1 inch of give.

When does a worn fan belt make a squealing noise?

Often, a worn belt makes a squealing noise for 1 or 2 minutes after the engine starts. Left untouched, the squeaking grows louder and lasts for longer periods of time. Drivers may notice the noise whenever the car accelerates.

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Ruth Doyle