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Alternator decoupler
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=76577
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Author:  jeepcrdnw [ Sat Sep 07, 2013 4:47 pm ]
Post subject:  Alternator decoupler

I just got done replacing the alternator decoupler on our 2006 CRD. Many thanks to those who posted on the longer thread here. I would have wasted a ton of time and money chasing what I thought was a problem with the tensioner. I wanted to post my results of the repair here so folks don't have to dig through the other thread.

1. The part number has been superseded - it is now 53013554AF
2. I did have to remove the alternator from the engine, since there was not enough room for the tool, and especially not enough for working with an impact wrench.
3. Instead of the Miller tool, I used Lisle tool 57650 - Alternator Decoupler Tool Kit. It contains the tools for both the splined and hex decouplers, and costs $34 from O'Reilly rather than nearly $95 with shipping from Miller for just the hex tool. I have photos of the kit (doesn't look like I'm allowed to post them here).
4. The tips people had of using an impact wrench for removal were spot on. I tried using the tool as designed with two wrenches, no effect. I then used an impact wrench on the center bolt, going clockwise as directed, while holding the hex portion with a wrench, no effect. Then, even though I figured it shouldn't work because of nearly no resistance, I tried the impact wrench on the hex, going counterclockwise, by itself. Spun the decoupler right off.

Decoupler was frozen, and the face cracked. Belt squeal is gone, engine quiet again.
Lastly, again, thanks to those who paved the way before me and documented their experiences. I would have been lost without it.

Dave

Author:  WolverineFW [ Sat Sep 07, 2013 9:09 pm ]
Post subject:  Re: Alternator decoupler

ID Parts also sells the Lisle tool kit for $29.95

http://www.idparts.com/catalog/product_info.php?cPath=30&products_id=3737

Author:  thermorex [ Sun Sep 08, 2013 5:18 pm ]
Post subject: 

Dave, what decoupler did you use, OEM or aftermarket?

Author:  jeepcrdnw [ Fri Sep 13, 2013 1:32 am ]
Post subject:  Re: Alternator decoupler

OEM, ordered from moparpartsamerica.com

Dave

Author:  thermorex [ Fri Sep 13, 2013 2:00 am ]
Post subject:  Re: Alternator decoupler

Cool, thanks a lot!

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