The tension pulley has a 17mm bolt head that moves counterclockwise to relieve tension. This is where you will likely need another set of hands. While I was pulling the tension pulley back, my dad used some screw drivers to ease the belt over onto the top pulley, while slowly turning it clockwise. The belt slid off and right into place.
Your serpentine belt is like one giant, fast-spinning rubber band. And, like a rubber band, it must maintain a balance of flexibility and tension. Most tensioners feature an internal spring and pulley, which applies needed force against the serpentine belt to keep it tight. If there is not enough tension, a belt can slip, squeal or run hot.
Remove the belt from the grooved idler pulley and the power steering pump pulley. Pull the belt out of the engine bay. step 3 :Removing the Serpentine Belt Tensioner. 2:42. Remove the three 10mm bolts from the belt tensioner. Remove the tensioner from the engine bay. step 4 :Installing the Serpentine Belt Tensioner. The bottom line is, when changing the serpentine belt: - Get a good flash light and - Verify that the serpentine belt wraps around ALL pulleys properly (crank, AC, Alternator, PS, and the 2 pulleys on the tensioner assembly) before starting the engine. Failure to do so (such as belt ribs not aligned correctly on the pulley grooves) will One of the more routine maintenance jobs you will encounter while owning a E46 involves replacing the drive and serpentine belts. That dreaded "gravel-like" sound hitting the under tray of your 3-Series, followed by the loss of power steering and an increasing engine temperature gauge usually indicates your serpentine belt has snapped. Buy Now!New Accessory Drive Belt Tensioner from 1AAuto.com http://1aau.to/ib/1AEBT00167This video shows you how to install a new TRQ tensioner pulley in your Step 3 – Pry up the tensioner pulley. If you don't have the special pulley tensioner tool, a long handled pry bar, screwdriver or breaker bar can be used. Press the tensioner back to remove the tension on the belt. It will be fairly obvious which direction it has to move.step 1 :Removing the Wheel. 0:25. Loosen the 21mm lug nuts with the vehicle on the ground. Raise the vehicle with a floor jack. Secure the vehicle on jack stands. Remove the lug nuts. Remove the hub cap. Pull off the wheel. step 2 :Removing the Serpentine Belt.
The serpentine belt is a long rubber belt that transports power to the engine accessories—the alternator, power steering pump, air conditioning compressor and (sometimes) the water pump. You may have heard a serpentine belt referred to as a fan belt or accessory belt. This is because vehicles used to have multiple drive belts that connected 5 Slide the serpentine belt onto the tensioner pulley. 6 Release the tensioner pulley back into position. 7 Look at all the pulleys and make sure the serpentine belt is properly seated on each one. Otherwise, release the belt tension and adjust the belt. 8 Connect the ground (black) battery cable using the wrench. A ruler or a serpentine belt tension gauge can be a useful belt tension method if you want to examine it at home. Tightness enhancing is required if tension is lower than half of an inch. Since the parameter is quite small, you need to be careful as much as possible to get the correct measurement. Examine serpentine belt tensioner while the engine is running. Turn on the A/C and run the engine at idle speed. Then shine a flashlight on the roller/pulley at the end of the belt tensioner arm. The tensioner arm should only move about 1/32″. bRBA.