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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

alternator options?

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Old Dec 2, 2014 | 01:41 PM
  #16  
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From: Dracut, Massachusetts
Originally Posted by ArdWrknTrk
You probably want to increase the size of both the charge and ground cables to better handle the load and current you're putting on that alternator.
what size charging wire should i go to? the wire there looks to be a 10 gauge, possible an 8 gauge.
 
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Old Dec 2, 2014 | 01:53 PM
  #17  
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From: Easton,Ks
My 130amp alternator stock wiring has a 6GA wire from the alternator to a 12GA fuse link and then two 12GA wires side by side from the fuse link to the starter relay. It then uses a 6GA wire from the starter relay to a isolated stud on the frame where it joins with the power wire to the starter solenoid. From the isolated stud it uses a 2GA wire to the battery.



/
 
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Old Dec 2, 2014 | 03:20 PM
  #18  
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I have the 2Ga. cable and 175A Megafuse kit from what used to be RJM.

I would go 4Ga. at least if you are running lights, heater and an electric over hydraulic plow pump.
 
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Old Dec 2, 2014 | 08:52 PM
  #19  
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I'm not sure I follow... so I just replace the single wire that runs from the back of the alternator to the batter side of the solenoid?
 
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Old Dec 3, 2014 | 03:09 AM
  #20  
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I replaced my ground cable from block to battery, the cable from solenoid post to battery +, and when replacing the alternator charge cable I installed a 175A Megafuse in that line.
This covers all the very high amp portions of the wiring that may be getting a greater combined load due to something like a plow or electric spreader.
 
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Old Dec 3, 2014 | 12:01 PM
  #21  
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From: Dracut, Massachusetts
Originally Posted by ArdWrknTrk
I replaced my ground cable from block to battery, the cable from solenoid post to battery +, and when replacing the alternator charge cable I installed a 175A Megafuse in that line.
This covers all the very high amp portions of the wiring that may be getting a greater combined load due to something like a plow or electric spreader.
Ok great I'll do that. My battery cables are looking kind of bad anyway.
 
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