How tight should bolt tensioner pulley be?

When twisted either way from the middle, the tension in the belt must not be more than 12 inch. The belt is too tight if it is twisted more. The positions do not work for the vehicle.

Can you over tighten a tensioner pulley?

A belt shouldn't be over-tightened. Any bearing that the belt rotates on can be burned out by an over-tightened belt. A pulley bearing can be ruined by an over-tightened timing belt.

How tight do I tighten idler pulley?

Tighten with hand tools (until it snugs), then maybe 1/4 turn.

How do you tighten a idler pulley bolt?

Turn the adjustment bolt on the side, top or bottom of the pulley counterclockwise with the ratchet and socket until the accessory belt is loose enough to remove. Tighten the tensioner pulley by turning the adjustment bolt clockwise with the ratchet and socket until the belt is tight.

What happens if belt tensioner is too tight?

A. If the belts are too tight, they can put a strain on the shaft (and its bearing) of the alternator, power-steering pump and even the water pump. Most belts are installed on the tight side because they take an initial stretch.

HOW TO TIGHTEN A DRIVE BELT PERFECTLY EVERYTIME

How tight should engine belts 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.

What is a tensioner pulley?

Tensioner pulleys provide precise guidance and constant belt tension in the belt drive. They can either be mounted rigidly or combined with the tensioning elements to belt tensioners. Tensioner pulleys increase the wrap angle on belt drives and thereby transmit higher performance.

Is belt tensioner supposed to move?

The tensioner arm should move smoothly and freely. Solution: If you notice a binding, sticking or grinding tensioner arm, the tensioner should be replaced.

How do you use a manual belt tensioner?

To remove the belt, a pulley or pulley would be loosened so the pulley would wobble enough to remove the belt once the bolt was loosened enough. To adjust the tension, turn the bolt clockwise to apply tension to the belt until the proper tension is achieved.

How do you tighten a belt?

Why must pulleys be aligned accurately?

When pulleys are not aligned properly, additional loads are induced. The aim of belt alignment is to align the grooves of the drive and driven pulleys so that the belts run with minimal wear. Proper alignment extends the service life of belts and bearings, reduces vibration and noise levels, and saves energy.

How much tension should a serpentine belt have?

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.

How much play should a serpentine belt have?

Pinch that point between your index finger and thumb and move it back and forth. The belt should have about a half an inch of play when at the appropriate tightness. If there is less than a half an inch, the belt will need to be loosened, if there is more, it will need to be tightened.

Do belt squeal when too loose or tight?

A belt that is either too loose or too tight will often slip against the pulleys, causing the squeal. While the motor is running, pour water over the squealing belt. It the noise stops, it tells you the belt needs tightening.

What is the general rule for tightening a belt on a pulley driven system?

“Press the belt with your thumb until it deflects about 1/2 in.” “Tension the drive until you get a slight bow in the slack side when it is running.” These old rules of thumb for drive tensioning have outlived their usefulness: It is time to abandon them.

Is the tensioner pulley supposed to bounce?

It is important to note that any abnormal chattering or bouncing of the tensioner arm under normal operation indicates the tensioner has already failed and should be replaced.

Is the tensioner pulley supposed to spin?

Checking the Tensioner

Spin the pulley to see if it spins freely. If you hear grinding or the pulley doesn't spin freely, replace the tensioner. When you replace the belt, it should take a lot of muscle power to move the tensioner. If you can move it easily, the spring tension is most likely not tight enough.