Alternator Pulley sheared off!?!

[Quadcammer]

Originally Posted by Geof3

Um, no. That is not normal. But, from the looks of it, that thing was rusted badly. I can't believe it wasn't making some crazy howling noises. All the red stuff is rust. That pully was seized. The $100,000,000 question is why was it so rusty in the first place? That requires moisture, which there shouldn't be much of in that part of the engine compartment. If I were you, replace the alt and EVERY other rotating thing on the engine, to include the water pump, idler pullies, even possibly the power steering pump. It is possible every one of these items has rust, which is bad. At the very least, closely inspect all of these for ANY sign of rust and replace as necessary.

You seemingly have no clue what you're talking about

Originally Posted by JFP in PA

That pulley is completely normal. It is a declutching style pulley, the only thing missing is the snap on plastic from cover, which is decorative:


If the alternator is not making ratcheting sounds, put a new belt on it and you are done.

Scroll down to the next pic.