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| | | | Joined: Mar 2009 Posts: 75 'Bolter | | 'Bolter Joined: Mar 2009 Posts: 75 | Hello,
My recently purchased '40 1/2 ton has been upgraded to 12 volts with a newer alternator but I just noticed that the (newer looking Delco Remy) Voltage Regulator is not connected to anything (!). I assume things would be better in the long run if I had it connected.
Should I hook it up as per the 1940 shop manual (6v) or does the 12v upgrade require a different approach?
Thanks for any suggestions,
Doug - Portland, Oregon | | | | | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | If your alternator is internally regulated you don't need the external regulator. If it's not internally regulated this might help.
Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
| | | | | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | I don't know how to tell, or even if you can tell, by looking. If it's a newly manufactured alternator it should be internally regulated. Someone better versed on such things should chime in soon. 
Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
| | | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | Doug,
Great picture. Your alternator appears to have been converted to a single wire unit. You can see the little black plastic cap that covers the tabs on the internal regulator. You need no other regulator for this setup.
If you connect a Ohmmeter across + and - on your coil, a reading of 3 to 4 ohms means it has a internal resistor and no ballast resistor is needed. A reading on your meter of 1 to 2 means you need to stick a ballast resistor ahead of it.
Stuart
Last edited by atomarc; 10/21/2009 12:07 AM.
| | | | | Joined: Mar 2009 Posts: 75 'Bolter | | 'Bolter Joined: Mar 2009 Posts: 75 | Stewart,
Thanks alot! I really appreciate it. I am at ease knowing that the regulator on my firewall is just decorative... and I'll check the coil ohms ASAP.
Cheers,
Doug | | |
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