How tight should a belt tensioner be?
For most vehicles, the belt should not be able to be pressed down more than ½ inch. If it can be pressed lower, then the belt is too loose.
How do you know if your fan belt is loose?
The symptoms of a loose serpentine belt include a loud squealing noise when the engine is started or when the steering is turned all the way to one side. A serpentine belt that keeps slipping off the pulley is another symptom of a bad tensioner. The solution is to replace a serpentine belt and a belt tensioner.
Can you adjust a tensioner pulley?
There are two types of tensioner pulleys that provide the tension on an engine’s accessory belt or belts. One type is self- adjusting; the other requires manual adjustment. The other requires adjustment with a bolt that is located on the side, top or bottom of the pulley.
How much does it cost to tighten serpentine belt?
The required measure of tension in the serpentine belt is that it should not deflect more than ½ inch when twisted either way from the middle. If twisted more, the belt is loose, and if twisted less, the belt is too tight. Either of the positions does not work for the vehicle.
What does a bad belt tensioner sound like?
When the tensioner or tensioner pulley fails, the loss of tension can cause the belt and pulleys to make high-pitched rattling or chirping noises. If the pulley bearing completely fails, it can also cause a squealing or even a grinding noise. Symptom 2: Knocking or slapping. This can cause a slapping or knocking noise.
Is belt tensioner supposed to move?
Simply so, is a belt tensioner supposed to move? Appearance: Move the tensioner arm ( tensioner being mounted on the engine) through its entire range of motion with a wrench. There should be resistance to this movement. Other indicators are belt squeal from slippage, or loss of rotation of a belt -driven component.
Can you tighten 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.