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Broken Crank Pulley & Gear

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Old 07-01-2012, 02:03 AM
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Default Broken Crank Pulley & Gear

Hey all, I noticed an oil leak coming from my crankshaft pulley. Further inspection showed the the pulley bolt was loose to the touch (no clue how it got that way). Although I could have just torqued it down, I figured I'd play it safe and buy a replacement gasket as well. Removal was harder than normal, but I popped the pulley off eventually, revealing this:

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I'm pretty sure I did this trying to pry it off. While it's easy (but not cheap) to replace the pulley, I also busted the alignment **** on the crank side. The **** is basically a half-moon chunk of metal that fits in place between the shaft and the plate. What happened was the plate got twisted and warped and allowed the half-moon **** to pop out. I managed to get it back in, and it feels solid, but looks pretty sketch:

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Anyways, two questions: how bad is it that I sort of broke the alignment **** and would it be safe to buy a lightweight pulley? It looks like I might be able to buy a replacement (#21), but I'm not sure how easy an install would be. Normally I would go ahead with NST pulley because the 2AZ-FE is internally balanced anyways, but I also removed my balance shafts, so...

Anyways, thanks for any help/feedback.
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Old 07-01-2012, 08:17 PM
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Removing ur balance shafts does nothing negative because its internally balanced.

Anyways, i got a solid oem crank pulley with bolt if your interested in replacing yours.

Also did you ever figure out ur problem with the ultimate?
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Old 07-01-2012, 08:19 PM
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Mine are removed on fresh stock rebuilt motor and on stock crank pulley and no problems 2,500 miles in.
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Old 07-02-2012, 03:27 PM
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Originally Posted by sebbyxtc
Removing ur balance shafts does nothing negative because its internally balanced.

Anyways, i got a solid oem crank pulley with bolt if your interested in replacing yours.

Also did you ever figure out ur problem with the ultimate?
Yeah I'm not worried about the balance shafts by themselves. I was wondering if balance shaft removal + lightweight pulley would cause any issues by creating additional disturbance.

I had a bad harness on the ultimate. Got a new one and it runs fine now. Just need to get it tuned, if I can find a place in Michigan...
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Old 07-02-2012, 11:01 PM
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Funny - I had the EXACT same failure on my car. Still dont know the root cause. I ended up just swapping on another stock pulley I had laying around and never had an issue until I lifted the head in Houston (obviously completely unrelated). I still have the same crank with same keystock and same crank reluctor wheel.
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Old 07-02-2012, 11:03 PM
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i dont know the answer to the lighter pulley no balance shafts question, ask some of the big dogs lol.

so you have a high compression motor with the ptuning kit?? i hope your running low boost...

anyways i have a stock crank pulley im wanting to get rid of with the bolt. hmu if you need it!
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Old 07-03-2012, 02:54 AM
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Originally Posted by sebbyxtc
i dont know the answer to the lighter pulley no balance shafts question, ask some of the big dogs lol.

so you have a high compression motor with the ptuning kit?? i hope your running low boost...

anyways i have a stock crank pulley im wanting to get rid of with the bolt. hmu if you need it!
I'm not running high compression pistons - they are over-sized actually. I'm good on the pulley, thanks. I ended up pulley the old one from my stock motor. Ended up JB welding the mark into place. Hopefully it holds...
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Old 07-03-2012, 06:39 AM
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they maybe oversized but arent they 11:1 compression ratio?
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Old 07-03-2012, 02:12 PM
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Pretty sure it's 9:1.

Edit: Yep
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Old 07-08-2012, 06:39 PM
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Make sure its torqued properly and you use blue loctite.
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