Ford XL2Z-8620-DA Belt

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The accessory drivebelt is located at the front of the engine. The single serpentine belt drives the water pump, alternator, power steering pump and air conditioning compressor. The condition and tension of the drivebelt is critical to the operation of the engine and accessories. Excessive tension causes bearing wear, while insufficient tension produces slippage, noise, component vibration and belt failure. Because of their composition and the high stress to which they are subjected, drive belts stretch and continue to deteriorate as they get older. As a result, they must be periodically checked. The serpentine belt has an automatic tensioner and requires no adjustment for the life of the belt. These vehicles use a single V-ribbed belt to drive all of the accessories. This is also known as a "serpentine" belt because of the winding path it follows between various drive, accessory and idler pulleys. The belt's pathway is illustrated on a decal on the radiator support. With the engine off, open the hood and locate the drivebelt at the front of the engine. With a flashlight, check the belt for separation of the rubber plies from each side of the core, a severed core, separation of the ribs from the rubber and torn or worn ribs. Also check for fraying and glazing, which gives the belt a shiny appearance. Cracks in the rib side of V-ribbed belts are acceptable, as are small chunks missing from the ribs. If a V-ribbed belt has lost chunks bigger than 1/2-inch (13mm) from two adjacent ribs, or if the missing chunks cause belt noise, the belt should be replaced. Both sides of the belt should be inspected, which means you'll have to twist it to check the underside. Use your fingers to feel the belt where you can't see it. If any of the above conditions are evident, replace the belt. Tension is set by an automatic tensioner, Manual adjustment is not required. To replace a serpentine belt, rotate the tensioner counter clock-wise (2.3L, 2.5L and 4.0L engines) or clockwise (3.0L engine) to lift it off the belt. To loosen the belt, place a 3/8-inch drive ratchet in the square-shaped hole and rotate it against the spring force in the direction shown to move the tensioner off the belt. Slip the belt off the pulleys. Hold the tensioner in the released position. Install a new belt and make sure it is routed correctly. Be sure the ribs of the new belt engage the pulley ribs correctly. Release the tensioner. To replace a tensioner that can't properly tension the belt, or one that exhibits binding or worn-out bearing/pulley, remove the drivebelt, then unscrew the mounting bolt. On 2011 4.0L V6 models, the air filter intake duct must be removed first. Installation of the tensioner is the reverse of removal. Tighten the bolt to the torque value listed in the Specifications. Install the drivebelt. On 2011 models, install the air filter housing duct.

The front belt is one accessory belt responsible for turning the water pump, the alternator, the power steering pump and the air conditioning compressor. For the proper engine operation, its condition and tension are crucial; high tension results in bearing abrasion, low tension in slippage and belt noise vibration, and possible failure. Drive belts are made up of multiple layers of material woven together and therefore always under high tension but this tension as well as the heat takes its toll on the belts and they have to be regularly inspect. Belt also incorporates a serpentine tensioner that does not need being adjusting throughout the use of the belt. These vehicles employ a single v-ribbed serpentine belt and this belt goes round in a complicated way round different pulleys. To examine the belt, switch off the engine and take off the hood: flash light should be used in this case to look for signs of possible rubber plies separation, severed cores, rib separation, fraying and glazing of the belt. Admissible imperfections are slight diagonal crack runs and small portions missing from the ribs and, if more than ½ inch chunks are missing from two neighboring ribs, or if noise is produced, substitution is required. Though quite simple in design, the belt sides must be checked, and in order to inspect the bottom side of it, one will have to twist it. To remove the serpentine belt, turn the tensioner anti-clockwise in order to loosen the tension so as to remove the belt from the pulleys. To replace a belt, more often than not, the tensioner has to be in the released position; further, a new belt should be correctly placed and ensure that the ribs hook on the pulley ribs before releasing the tensioner.

No, tension is set by an automatic tensioner, so manual adjustment is not required.