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A/c and idler pulley belt broke


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This morning I started my car and it sounded a little off, but nothing too bad to make me check immediately. But I checked it in the middle of my work day and saw that my a/c and idler pulley belt was sheared and took a closer look to find that my main crank pulley or harmonic balancer (whatever it's actually called) was sitting really far back, so I looked even closer and apparently it worked itself apart and the middle was no longer attached to the crank

 

It also ground itself into my front timing cover a little bit.

http://i24.photobucket.com/albums/c6/Nismo253/Mobile%20Uploads/image_zpsswxsk3dl.jpeg

http://i24.photobucket.com/albums/c6/Nismo253/Mobile%20Uploads/image_zpsmpp0lzmy.jpeg[/

http://i24.photobucket.com/albums/c6/Nismo253/Mobile%20Uploads/image_zpsr5ezyvzr.jpeg

 

So I bought a new one and put it on along with a new a/c belt. Glad I caught it before it became a really bad issue

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Yep this is common with these cars. Crankshaft pulley is what it is called. Search Google for Legacy gt lightweight crankshaft pulley and you will see many aftermarket companies selling them. Or search on Google. site:Legacy gt.com crankshaft pulley

 

Hopefully you didn't suffer radiator or timing belt cover damage.

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Yeah, kind of worries me as my car gets closer to 200k.

 

There are a few threads out there on this topic, hopefully your ac compressor and wiring is ok. I've read as the crankshaft pulley shifts, it can move the AC belt backwards and damage the AC components. Here's one of the threads.

http://legacygt.com/forums/showthread.php/f-crank-pulley-229893.html

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Deteriorating OEM crank pulleys is a known issue, especially among the older or higher-mileage LGTs, but fortunately, the damage wasn't too bad for you. Avoiding this exact situation (or worse) is why I went with the Grimmspeed LWCP preemptively. Solid aluminum piece that weighs in at 2.05lbs, so it's 3.6lbs lighter than stock, but heavy enough not to trigger a CEL (unlike other LWCP alternatives). Aside from the peace of mind, I've also noticed that idle and lower-RPM engagement is smoother.

 

Here's a relevant walk-through: http://legacygt.com/forums/showthread.php/install-lightweight-crank-pulley-224447.html

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