alternator pulleys

How Do I Know What Size Pulley I Need For My Alternator?

by

How Do I Know What Size Pulley I Need For My Alternator? Divide your alternator pulley size into your crank pulley size to get the ratio. Example: If you have a 6′′ crank pulley and a 2′′ alternator pulley. 6/2=3. You have a 3 to one ratio, you multiply your engine RPM by 3 so

Do People Just Repair The Alternator Decoupler Pulley?

by

Do People Just Repair The Alternator Decoupler Pulley? Look for signs of grease around the pulley indicating a bad seal. If you can get a view inside the alternator, the rotor should continue to spin down when you shut off the engine. If the charging system warning indicator is on, the OAD may be the