Table of Contents
How do you adjust a tensioner pulley?
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.
Which way do you turn a serpentine belt tensioner?
To relieve the tension, a tool is inserted onto the pulley or a square drive is provided to insert a tool or ratchet. Apply the correct tool the tensioner calls for, and turn the tool counterclockwise to loosen the tension.
Can you adjust the tension on a belt tensioner?
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.
Can you over tighten a belt tensioner?
A belt shouldn’t be over-tightened. Any bearing that the belt rotates on can be burned out by an over-tightened belt.
Is it normal for belt tensioner 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 calibrate a belt tension gauge?
Regularly check gauge calibration using a free weight. Suspend a known weight on a single-strand belt, and attach the gauge. The belt tension gauge dial should read the same as the weight; if not, return to OTC for calibration. Regularly check gauge calibration using a free weight.
What are some potential problems if belt tension is too loose?
When a belt is too loose: Cracking of the belt. Pieces breaking off. Hardened appearance. Squealing during startup. Over amperage of your motor. Pulleys wearing out prematurely. Worn our front motor bearing.
How tight should a 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 adjust a serpentine belt?
Most serpentine belts have an auto-tensioner that automatically keeps the proper tension on the belt. However, some belts have an adjustment screw that applies tension to the belt. To correct the problem, tighten your belt.
Where do you put chain tensioner?
Applying tensioners Always place a tensioner on the slack side of the drive. A tensioner on the outside should be 1/3 of the center distance from the small pulley or sprocket. On the inside, the tensioner should be 1/3 of the center distance from the large pulley or sprocket.
Can you adjust an automatic tensioner?
Cars equipped with an automatic belt tensioner adjust themselves over time and do not require adjustment. This article shows you the process to adjust drive belts on a pivot-style belt adjuster. Warning: Drive belts that are cracked or excessively worn should be replaced.
Can a loose serpentine belt cause rough idle?
So if you have searched for answers to the question, can a bad serpentine belt cause rough idle? The answer is yes.
Should my belt tensioner 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.
How much play should a belt tensioner 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. Either of the positions does not work for the vehicle.
Should belt tensioner spin freely?
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.
How do you measure tension on a belt drive?
Belt tension at steady state can be calculated as:(6.6)Tb=1.37×f×L×g×2×mi+2×mb+mm×cosδ+H×g×mmwhere Tb is the belt tension (N), f is the coefficient of friction, L is the conveyer length in meter divided by two, g is the acceleration due to gravity (9.81m/s2), mi is the load of idlers within 1m length of conveyer belt (.
How do I know if my tensioner is bad?
One of 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 happens if serpentine belt is to tight?
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. It looks like the power-steering fluid level is getting low.
How do I know if my serpentine belt is too loose?
Look for polished edges on the belt. If the edges of your serpentine belt are shiny, the belt is too loose and needs to be tightened. If the belt is showing sign of wear like polished edges, it likely will need to be replaced. A frayed belt edge, however, means the belt is misaligned.
