I arrived home after a four hour drive and heard some crazy rattling while the engine was idling. You can see the front of the pulley hanging there, source of the noise. The missing ribbed section of the pulley is presumably in pieces, none of which are laying around on the undertray. Seems like the remaining back half of the pulley was driving the belt okay, for an unknown length of time. The belt seems to be in normal condition.
Does this look like the OEM pulley? I bought the car from an offroad dealer and don't know if it is overdriven and/or tuned. It does have the NeedsWings *single* CAI.​​​

 

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Wow, you got lucky! There have been a number of these SC pulleys disintegrate, who's make/model pully I am not sure of but I'm sure members will chime in. There are a bunch of posts in the forum (various places/posts) about this so do a some key word searches. Good luck!


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that is an aftermarket failure prone pulley. put the factory pulley back on, if you don't have it reach out, i have a new one and a used one in stock.

 

I was hoping you'd chime in, Rob.
Thanks for the info, I'm sending you a PM.

EDIT: Can't send the message, your inbox is full

 

sorry, space cleared, emailed ya

 

I know now that Rob has contacted you your problem will be resolved with quality parts

 

The pulley that came apart was either a aluminum 62mm or a 65mm i have stock steel turned down to a 67mm stock yes for sale
just have not put it on market place yet.jim

 

When these after market pulleys came onto the scene I predicted they would fail, they came from quick buck artists without any engineering thought given to them, they made them smaller and smaller using the same bearing. Finally someone used a smaller bearing, then came aluminum ones they failed faster. The dog bones were not made of spring steel so the gap was hard to set, with all the flexing the dog bones fractured. Riveting was another weak point especially in the aluminum ones. People ignored or pooh poohed me and kept buying when they grenaded some caused more costly to repair than the pulley itself cost.
Look for the original makers, can you see them?
There is the one from Germany that seems OK.
The OEM pulleys will fail at some point, some have already but it is normal that some will fail early. Most will fail at some point possibly not in our lifetime, mine anyway.