The Powermaster Performance Starters and Alternator crew has been providing high-quality charging and starting components for years, ensuring that your race car, off-road vehicle, or daily driver starts the engine and powers accessories that are dependent on 12 to 16 volts.

Beyond providing customers with a reliable product, Powermaster also aims to educate automotive enthusiasts on proper alternator and starter maintenance. The technical bulletin below highlights symptoms of alternator V-belt slippage.

Regardless of whether your alternator is brand-new or 30 years old, there are various indications that will clue you into the effectiveness of the charging system. The power output of the alternator is greatly dependent on the condition of the belt that is driving the alternator pulley. The V-belt drive system is more susceptible to failure compared to a modern serpentine belt, and therefore must be inspected regularly to insure proper operation. Lack of voltage output, discharged battery, a blueing or hot drive pulley, excessive belt dust build-up, bearing noise, or a squealing belt are just a few signs of slipping.

Powermaster also outlines the proper way to ensure the V-belt is properly adjusted, aiding in the longevity of your alternator. After tightening the accessory belt, place the properly-sized socket onto the pulley nut, and turn the wrench clockwise. If the pulley slips, the belt needs to be retightened. If not, the belt will slip while the engine is running. Sticking to this testing procedure will ensure that your alternator continues to perform consistently throughout its entire lifespan.