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Unread 04-14-2013, 08:27 AM   #1
jdumont
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1999 XJ Cherokee 
 
Join Date: Apr 2005
Posts: 232
Frayed Alternator Cable

Morning all,
Been meaning to get to this for a while and I think today is the day. It looks like the black/white trace cable to the back of the alternator is frayed pretty bad. Its the one that goes through the wire loom and then into a fusible link and then to the post on the power distribution block.

Are there any special requirements about this link that I need to be aware of before I replace (ie. V or A requirements)? Is this normally an Auto Zone type thing?

Thanks in advance

imag0042.jpg   imag0045.jpg  
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Unread 04-14-2013, 09:37 AM   #2
5-90
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1988 XJ Cherokee 
 
Join Date: Sep 2006
Location: San Jose, CA, Hammerspace
Posts: 5,344
That's not the ground - that's the main power cable! Thus, the fusible link.

The fusible link may be replaced with a fuse - for your 1999, the alternator should be rated for 117A max output (111.15-128.7A actual max output, given the "95-110%" range usually used.)

A MEGA or ANL fuse is preferred, 10AWG fusible link wire can be found in bulk, but is difficult (and you usually get clobbered with minima.) Use a 125A or 150A fuse in either format, mount it on the fenderwell. The other lead from the fuse can be run to either the PDC input stud (as OEM) or to the battery positive post (electrically speaking, they're the same thing.)

Do not eliminate the fusible link without replacing it in some manner!
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Unread 04-14-2013, 10:22 AM   #3
jdumont
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1999 XJ Cherokee 
 
Join Date: Apr 2005
Posts: 232
Thanks man! Yea, I had changed that from ground to black wire after I thought about it for a minute!

Just cleaned my throttle body/IAC so once I get that back together ill run to autozone to look for the fuses. I think I saw the ones you are talking about the other day.
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Unread 04-14-2013, 11:06 AM   #4
sAe23
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1995 XJ Cherokee 
 
Join Date: Apr 2009
Location: Los Angeles / SFV, California
Posts: 2,438
Autozone is probably only going to have a 175 amp fuse, and no holder for it.
Try a stereo install shop, or order it on line.
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Unread 04-14-2013, 02:23 PM   #5
cory4um
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1999 XJ Cherokee 
 
Join Date: May 2009
Location: Skook, pa
Posts: 609
Quote:
Originally Posted by sAe23 View Post
Autozone is probably only going to have a 175 amp fuse, and no holder for it.
Try a stereo install shop, or order it on line.
Yup, i only could find the 175a at AutoZone too. It works.
The pdc itself is a nice holder for the fuse...
Not my pic, but i did something similar

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