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How to Loosen an Alternator Pulley Nut

An alternator provides power to your vehicle while charging your vehicles battery. The alternator turns via a belt that runs over the top of a drive pulley. When changing a bad alternator or installing under-drive pulleys, you will need to remove the pulley from the front of the alternator. A large nut located on the front of the pulley secures it to the alternator shaft. Loosening the alternator nut allows you to separate the drive pulley from the alternator.

Instructions

1

Spray penetrating oil on the alternator nut. Allow the penetrating oil to soak on the nut for two to three hours before continuing.

2

Put a heavy leather glove on your non-dominant hand.

3

Match an impact socket from a socket set to the nut located at the front of the alternator pulley. Attach the socket to an electric impact wrench.

4

Hold the alternator shaft directly behind the pulley with your gloved hand. Slide the socket attached to the impact wrench onto the alternator nut. Set the direction of the impact wrench to counterclockwise.

5

Pull the trigger of the impact wrench as you apply pressure to the alternator shaft with your hand. Continue until the nut breaks loose of the pulley.

Posted by Unknown at 8:45 AM

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