Most common crack damage occurs at tensioner “stops” and mounting bolts. Solution: Replace the tensioner. 2. Pulley bearing wear. Appearance: With the engine off and the belt removed, manually rotate the pulley. If you notice noise, resistance or roughness, the problem is likely to be pulley bearing wear. The efficiency of a serpentine belt basically lies in its tension. To mention in common language - tighter the belt is, better will be the output of the devices connected to it.Be it power steering, air conditioner or anything. The tension in the serpentine belt keeps it tight and straight on the connecting pulleys and prevents it from flipping The smoother side of the belt is glossy or shiny; has rounded edges or chunks missing; has glazing, large cracks, peeling or fraying. A Gates belt wear gauge can measure serpentine belt ribs to determine if the belt should be replaced. Contact Gates and ask for part number 443-0382-R5. A serpentine belt must be constantly tensioned to prevent it from coming off. The belt can come off if the alignment is not aligned. It is possible that the tensioner is out of alignment and not applying enough tension to the belt. You should have a mechanic check the tensioner and replace it if necessary. If there is a loose idler pulley or an The part number is 90916-02500. The revised specs for tension say to install the new belt, start the engine and let it run for about 20 minutes to allow the belt to stretch a bit then shut it down. Measure the deflection of the belt in the center of the span between the alternator and the crank pulley. Twist the belt tensioner nut clockwise. Now with your free hand remove the drive belt from the pulley closest to you (the alternator pulley is probably the most accessible), extract your wrench, feed the belt off the other pulleys, and pull it out of the engine compartment. Figure 10. Remove the serpentine belt. JZ9y. Reply Quote. lgraf9546. 35 posts · Joined 2022. #11 · Dec 5, 2022. Update on tips to replace the serpentine belt on a 3rd Gen Murano. I replaced the serpentine belt on my 2015 SL, using the long flat replacement tool, but did not need any of the crow's feet or sockets that came with the bar. Typical service factors for serpentine drives are no less than 2.0, but because of shock loading and relatively tight drive geometry, we choose a slightly more conservative service factor of 2.2. jadnashuanh. A serpentine belt does not always show cracks before it dies, but usually does. The reinforcement inside tends to eventually crack and it can catastrophically disintegrate. The ridges usually wear down and when the pulley peaks are taller than those in the belt, it puts more stress on it. Step 1: Don your protective gear and locate the drive belt Put on your safety glasses and gloves. Locate the drive belt - the vehicle may have more than one. Make sure you are working on the belt that needs to be tightened. Step 2: Measure the belt deflection. Place the ruler along the longest stretch of belt on the vehicle, and push down on Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. 1 (855) 347-2779 · hi@yourmechanic.com. Read FAQ. GET A QUOTE. Drive belt problems usually manifest as noise. If you have a noisy drive belt, it’s important to know what’s causing it so that it can be fixed.

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