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Old Oct 5, 2015 | 11:40 AM
  #106  
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Originally Posted by CPB1
Yea I bet that's the correct size 10mmx1.50

Since installing the extra ground cable I noticed an increase in charging voltage just after start up when the glow plugs turn off and the alternator takes over. I am seeing 14.1-14.2 volts just after start up then settles down to about 13.6 volts after about 1/2 hr of running. Not sure why this is but my starter does sound like it draws a lot of current during a cold start. Maybe needing a new starter.

.
It puts out what the truck needs, if it doesn't need 14.2 to recharge or maintain the charge, it cuts back voltage. 14.1-14.2v, nice, right where you need to be.
 
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Old Oct 5, 2015 | 01:24 PM
  #107  
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Originally Posted by WatsonR
It puts out what the truck needs, if it doesn't need 14.2 to recharge or maintain the charge, it cuts back voltage. 14.1-14.2v, nice, right where you need to be.
I should point out that I have dual alternators, and I believe one of them is a 140 amp. Also I did not update any of the positive cables, so everything else is stock.

.
 
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Old Oct 5, 2015 | 01:53 PM
  #108  
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And you should not need to update anything else. The one 24" negative cable and clean grounding points brings everything up to optimal. There is minimal voltage drop between all the batteries, charging and starting connections at this point with the stock cables.

I really need to get a and finish this video.
 
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Old Oct 16, 2015 | 08:34 PM
  #109  
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Ok, I'm doing this in video segments. I keep waiting for my nasal condition to clear up (it isn't) and I keep going back and forth with never ending corrections.

So here is the first segment about the 6.0 layout, specifically the ground wire problem, with more being finished up about other cables and alternators.

 
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Old Oct 16, 2015 | 10:17 PM
  #110  
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Originally Posted by TooManyToys.
Ok, I'm doing this in video segments. I keep waiting for my nasal condition to clear up (it isn't) and I keep going back and forth with never ending corrections.

So here is the first segment about the 6.0 layout, specifically the ground wire problem, with more being finished up about other cables and alternators.

TMT Powerstroke 6.0L Maintenance Series - Drivers Ground Cable - YouTube
Very nice video! I still haven't done it yet, I have been so stupid busy, need to though! It's in the queue with my tranny fluid change, blue spring kit and a new belt. Just need to find the time!

About how long of a bolt is that 10x1.5 for the block? About 3/4" long enough but not too long?
 
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Old Oct 17, 2015 | 05:56 AM
  #111  
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Argggggg! Another revision!

I used 25mm. I should have put that in there.
 
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Old Oct 17, 2015 | 08:45 AM
  #112  
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Originally Posted by TooManyToys.
Argggggg! Another revision!

I used 25mm. I should have put that in there.
Sorry, but thanks!
 
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Old Oct 17, 2015 | 07:29 PM
  #113  
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Thanks for the vid.
There are various boss locations on the head, one is a located higher, a M10x1.50, the other is a 3/8x16. For all you 05-07 owners; You want to use the SAE landing.

The metric boss is for the earlier models.

At the 5 o'clock position of the metric boss You will find another landing point located about 5" (towards the lower outside edge of the head) there will be a 3/8x16 boss that will not interfere with lines and hoses.

Get yourself a 3/8x 16 tap, use it to clean out the hole then use the tap in the factory 5/16" hole supplied in the frame rail adjacent to the steering box. No drilling required.
I used a zinc 1" bolt for both locations (The 3/8 boss is much shallower than the metric one). You should only need a 18" cable, or 21" if you want to piggyback the existing battery cable landing.

If that's too wordy for some of you guys with an '05-'07, please refer to post #80 in this thread by CPB1

Thanks Jack for bring this up and pointing out the shortfall of the starting circuit. In the audio aspect of your video, the starter can be heard cranking much faster as if you had more current available.
 
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Old Nov 21, 2015 | 09:02 PM
  #114  
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I finally had the chance to do this today! Amazing, I went from a range of 13.56-13.76 to 13.88-14.0 just on my test drive. Definitely worth it! Thanks for all the info and help on this!

For those looking to this, I have an '05 so I went for the 1" 3/8x16 option and I couldn't get the bolt to go all the way in on my truck. I just threw a washer and a lock washer on it and all was good. I think 3/4" would have been sufficient.
 
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Old Nov 21, 2015 | 10:18 PM
  #115  
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Glad to hear it helped. I saw a change too.

I still don't understand why those are 3/8" threads on a motor completely designed in metric. And then there's this. They screwed right down in there. . Maybe I'm picking the wrong holes.
 
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Old Nov 22, 2015 | 12:26 PM
  #116  
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Originally Posted by TooManyToys.
Glad to hear it helped. I saw a change too.

I still don't understand why those are 3/8" threads on a motor completely designed in metric. And then there's this. They screwed right down in there. . Maybe I'm picking the wrong holes.
I don't know, I'm just happy about the added voltage in the system!

With the addition of the 1/0 from the alternator to the passenger side battery and a 1/0 negative from the frame to motor, how big of an alternator can I go to now? Can I do those high output DC alternators? Or do I need to do some more cable upgrading?
 
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Old Nov 22, 2015 | 05:16 PM
  #117  
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I'm running a 2ga with my 230a Leece-Nelville to the battery so you should be golden with anything, up over 600a with a 1/0.
 
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Old Jun 23, 2016 | 07:56 AM
  #118  
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grounds are good and cable are not stiff'
 
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Old Jun 23, 2016 | 12:25 PM
  #119  
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Originally Posted by TooManyToys.
Glad to hear it helped. I saw a change too.

I still don't understand why those are 3/8" threads on a motor completely designed in metric. And then there's this. They screwed right down in there. . Maybe I'm picking the wrong holes.
Um, it looks like you're on the wrong head. It's the drivers side head that was landed mentioning the frame rail hole next to the steering box.

Anyway, all's well that ends well.
 
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Old May 3, 2018 | 02:50 PM
  #120  
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Thread Resurrection for an update:

Originally Posted by texastech_diesel
I rotate the two batteries once or twice a year, and keep the trickle charger on the driver's side. My Motorcraft 750cc (original OEM spec) died every 3 years with the stock alt, but they died equally for the most part on the load tester. IDK if the DC Power alt and Ed's cables will help since my GP-cycle voltage is in the 12s and not the 10s now.
Passenger battery died yesterday, failed a load test (I have a Solar BA-7 digital tester, it just says "charge" if the battery is too low), so I charged it and right off the box it only pulled ~220cca. After putting it back in and spinning the starter for ~3 seconds it was back to a hard-fail. Motorcraft 750cca 11/13 date code installed 12/13, this is the longest I've had a set of batteries go in my truck (4 years 5 months), so I'm going to say the alternator and wiring upgrade plus my ****-retentive rotation scheme helped add about a year until one died. Or it could be God, blind luck, providence, the Flying Spaghetti Monster, or aliens. Who really knows.

Driver's battery tested out to 652cca when I pulled them out of the truck, charged and tested at just over 700cca after I put it back in the truck and spun the starter to clear any surface charge off.
 
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