Builds Cummins 6bt/nv4500 build

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Mr Cimarron said:
Heat mainly. He said that is why the "store brand" or chrysler external regulators fail all the time on our application and mentioned the internal conversion parts don't have a big enough heat sink for the 120a alternator so it would be the same problem. My main concern was not overcharging due to failure. This one has protection against that. I just placed my order so we will see how it goes once installed.
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Ill be watching to see how this works out for you, I need to decide which way I am going soon.
 
I had an overcharge failure with the chrysler style external regulator which is why I moved to an internal regulator. No issues after a couple of years.

Where are you going to mount it?
 
GLTHFJ60 said:
I had an overcharge failure with the chrysler style external regulator which is why I moved to an internal regulator. No issues after a couple of years.

Where are you going to mount it?
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Right now I have mine mounted on the passenger side fender. Hoping to put in the same location.
 
Pulled old alternator in preparation for swapping in new one. Voltage regulator gets here Monday but I won't be able to mess with it for awhile due to leaving town for work on Tuesday. It will be easy swap. Only modification to alternator will be adding the tach wire and cutting a hole in back cover.
Notice tach pickup wire coming out the back.
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Back cover removed.
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Tach pickup. Simple ring terminal that is now a bit rusty from the beach.
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While I was messing with the truck I made my stepson practice changing a tire. I made him use the owners manual so he would know where they hide all the tools in the car. I gave him some pointers but he did 90% of it on his own.
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That's the regular dodge cummins alternator from a 2nd gen (12v p-pump) right? They have a tach pickup?!
 
GLTHFJ60 said:
That's the regular dodge cummins alternator from a 2nd gen (12v p-pump) right? They have a tach pickup?!
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No it was added but yes stock alternator.
 
Mr Cimarron said:
No it was added but yes stock alternator.
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Can you go into any details for adding that? I'd love to pull the tach signal off the alternator and feed my factory tach.
 
All you do is add the pickup wire to the screw that is shown in the photo and cut the rear cover. Easy as that. You then run it through the Dakota Digital box to covert it to your stock tach. I thought it was harder than that but after some research on the inter web it, a call to Dakota Digital, and the alternator place it is as simple as it looks.
 
So all you did was hook a wire to that screw and cut a hole in the cover? That's really just using the stock alternator tach pickup then. Sweet!!
 
GLTHFJ60 said:
So all you did was hook a wire to that screw and cut a hole in the cover? That's really just using the stock alternator tach pickup then. Sweet!!
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The DD box converts the signal from diesel to gas. I don't know what the difference would be but I'm sure a smarter person could explain it. :)
 
I got to work on this diesel monster today. Detroit Diesel series 60 14.0L. We changed out all the coolant hoses. Drained 18 gallons out. My boss bought this thing a few months ago for us to travel in.
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Regulator was delivered today. Nation's Starter & Alternator were nice enough to hand write the directions for the Denso alternator for me.
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mryanangel said:
Cim, what is it you do for work? Are you a superstar athlete that also has to repair the bus?
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Ha! Not even close. I work for a concessionaire company that runs bars and supply point of sale systems at festivals. Unfortunately me and another guy are the "lucky" ones that have to get certified to drive as well. I passed my written but still need to take the driving exam with the bus.
 
When I got my CDL years back, I found I was psyching myself out. Just watch your mirrors and take your time, get a backup spotter if you need it. You'll do well.
 
mryanangel said:
Are you getting rid of the Dakota Digital, or using it in conjunction with this external regulator?
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I will "attemp" to keep the same setup I have with the new external regulator since nothing changes on the alternator. should be a simple swap.
 
All my wiring is there for the external regulator I have now as well.
 
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