What does a tensioner do in a car?
What does a tensioner do in a car?
A tensioner maintains the correct amount of tension on the belt at all times throughout its duty cycle. It also helps protect other components such as the alternator and water pump from undue stress and premature failure. In addition, a tensioner is a relatively inexpensive part to replace.
What kind of tensioner is on an engine?
The serpentine belt and the timing belt or chain on an automobile engine may be guided by an idler pulley and/or a belt tensioner, which may be spring-loaded, hydraulic, or fixed.
How does an automatic belt tensioner work on a belt?
The tensioner in the left picture is pushing down the accessory belt thanks to the strong spring of its arm. Use a spanner to rotate the tensioner in a manner to take it away of the belt. The belt can be seen loose in the middle picture. Use your finger to push the pin in which holds the arm away from the belt (right picture).
How does an auto tensioner work on a water pump?
The auto tensioner is replacement for the OEM unit. It mounts on the water pump and is designed to ensure proper belt tension at all times. Using a 14mm wrench (double wrenching can help with leverage) you can remove tension to install and remove the belt.
Where can I buy a serpentine belt tensioner?
Take a look at our selection of belt tensioners sourced from top aftermarket brands such as ACDelco, Dorman, Duralast, Continental and URO. Our inventory includes tensioners and belt component kits containing serpentine belts along with the idler pulleys or tensioners you need to make a full replacement and get back on the road.
What are the signs of a bad belt tensioner?
The most common symptom of a bad or failing drive belt tensioner is noise from the belts or tensioner. If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started.
What is an auto tensioner?
The auto belt tensioner is a spring loaded arm with a pulley on the end. Once the belt is fitted over the pulley the spring pressure on the arm puts the correct amount of tension on the belt for everything to run smoothly and quietly.
Do belt tensioners go bad?
A bad belt tensioner is a likely cause of belt damage. However, if your belt is old and has not been replaced in several years, it might just be normal wear and tear. Push down on the middle of the belt while the engine is off and the components are cool enough to touch.
How long does a drive belt tensioner last?
Drive belts typically last anywhere between 40,000 and 70,000 miles. There aren’t a lot of warning signs that a drive belt tensioner has hit the end of its lifespan, in fact there is really only one. Once you start to hear a grinding or squeaking sound coming from your engine, it’s time to have the drive belt tensioner looked at.
