Overrunning Alternator Decoupler – Clutch Type Alternator
January 1, 2011 Consumer, DIY, How To Auto Repair 2 Comments
OAD stands for Overrunning Alternator Decoupler – Image Courtesy of the Gates Corp.
© DenLorsTools.com Summary: DenLors auto repair blog written by an ASE master tech. Helping to make sense of the clutch type alternator pulleys used on many cars today. Knowing how decoupler pulleys are designed and how they’re suppose to work is the first step in properly diagnosing problems. Many alternators are replaced needlessly due incorrectly diagnosed problems related to this type of pulley.