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Old 11-25-2014, 04:39 PM   Thread Starter #1
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Default Idle Pulley broke

Hello to all.
I searched the forums and all I could find was how to replace the belts so here I post.
About 3 Months ago I bought my 2008 Maxima. The Serpentine Belt (A/C, Alternator) was in a rather shoddy shape so I replaced it. Yesterday (~ 2K Miles later) the Idler Pulley decided to jump ship and came off while I was driving at ~40 mph. I heard a clump, a thump and that was it.

Now I am wondering a lot of things so I thought I'd ask you all for suggestions:
1. What made the Pulley to kick the bucket? Is it that I tightened the belt a bit too much?
2. What, if any, damage would this have caused? A visual inspection did not tell me much but I did drive home (~2 Miles) before I could check it.
3. Is this something I can fix myself with some basic tools? Would it be a weekend job?
4. Is this a job better left to a mechanic?
5. What would be parts that I need to buy from the dealership?

I've attached a pic of what's left. The bolt is wobbly at the moment.
I generally use this website for part numbers: http://parts.nissanusa.com/nissanpar...2537&siteid=14
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File Type: jpg IMG_20141125_135329.jpg (95.1 KB, 11 views)

Last edited by cyrax; 11-25-2014 at 04:47 PM. Reason: Added url for parts schematic
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Old 11-25-2014, 06:47 PM   #2
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Default Re: Idle Pulley broke

Originally Posted by cyrax View Post
Hello to all.
I searched the forums and all I could find was how to replace the belts so here I post.
About 3 Months ago I bought my 2008 Maxima. The Serpentine Belt (A/C, Alternator) was in a rather shoddy shape so I replaced it. Yesterday (~ 2K Miles later) the Idler Pulley decided to jump ship and came off while I was driving at ~40 mph. I heard a clump, a thump and that was it.

Now I am wondering a lot of things so I thought I'd ask you all for suggestions:
1. What made the Pulley to kick the bucket? Is it that I tightened the belt a bit too much?
2. What, if any, damage would this have caused? A visual inspection did not tell me much but I did drive home (~2 Miles) before I could check it.
3. Is this something I can fix myself with some basic tools? Would it be a weekend job?
4. Is this a job better left to a mechanic?
5. What would be parts that I need to buy from the dealership?

I've attached a pic of what's left. The bolt is wobbly at the moment.
I generally use this website for part numbers: http://parts.nissanusa.com/nissanpar...2537&siteid=14

Easy job at least in my opinion. I stripped the center nut on mines and ended up replacing it. But it didn't break off like yours. Mostly likely it was due to some over-tightening in your car. I replaced all my belts since I was installing a lighter pulley on it.

But you should be able to do it yourself. If you don't feel comfy. have a mechanic do it.

You can check my build thread on it with pics.
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Old 11-25-2014, 11:48 PM   Thread Starter #3
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Default Re: Idle Pulley broke

Originally Posted by EddyMaxx View Post
Easy job at least in my opinion. I stripped the center nut on mines and ended up replacing it. But it didn't break off like yours. Mostly likely it was due to some over-tightening in your car. I replaced all my belts since I was installing a lighter pulley on it.

But you should be able to do it yourself. If you don't feel comfy. have a mechanic do it.

You can check my build thread on it with pics.
Hmm I checked the pics on your list. Certainly will have to have a chat with the dealer for the exact parts as I am missing quite a few of these.
On another note do you have any reference material on how much tension should be really on the belt. All the videos I checked generally tell to take the feel of the tension in the belt before actually replacing it. In my case, that perhaps, won't be possible
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