popped the cover off my old VR706

[jct]

was surprised how easy it was able to pop off

 

[65sporty]

That's not the old mechanical regulator, it must be a electronic replacement

 

[jct]

it is. replaced it with the same auto zone vr

 

[thrashingcows]

I was running one of those as well...but it just never seemed to keep the voltage constant. And when you convert to MP electronic ignition you need better voltage control so the system functions properly. I converted to the more modern voltage regulator and all has been well.

 

[jct]

i'll be doing the same soon, until i get the correct brush set, where did you put your new vr at?

 

[stubs300]

I was running one of those as well...but it just never seemed to keep the voltage constant. And when you convert to MP electronic ignition you need better voltage control so the system functions properly. I converted to the more modern voltage regulator and all has been well.

I can't understand why people use those old POS units anyway? I've upgraded as well all will never look back on those units. It's sad that people don't do there homework when they do do upgrades like that when they say!

There are a number of reasons one might want to upgrade a per-1970 system to a transistorized voltage regulator. The list of reason include

• Chrysler recommends you switch to a transistorized VR if you upgrade to an electronic ignition from a points style ignition.
• If you have to buy a new voltage regulator, the difference in cost is only about $5-10 more for the transistorized unit. Not to mention, the quality of replacement early style VR's is spotty.
• The transistorized VR will have a longer life.

It's all right here! ---> http://www.imperialclub.com/Repair/Electrical/charging.htm

 

[Zymurgy]

Do not buy the non transistor version fried mine in less than a few hundred miles. Put the 50 year old one back on, for now.

 

[jct]

i never had the electromechanical vr with this car when i bought it. it came with the vr706

 

[thrashingcows]

i'll be doing the same soon, until i get the correct brush set, where did you put your new vr at?

I mounted it right where the old mechanical VR used to be. Then wired up the new plug to an ignition source, and one of the fields on the alternator.

BTW when upgrading to the new VR you will also need to upgrade to a dual field alternator.

 

[jct]

i heard i could just get a later model dual field brushes for my currant alt
something like this
http://www.rockauto.com/catalog/moreinfo.php?pk=47183&cc=1066249&jnid=582&jpid=1

 

[Big_John]

i heard i could just get a later model dual field brushes for my currant alt
something like this
http://www.rockauto.com/catalog/moreinfo.php?pk=47183&cc=1066249&jnid=582&jpid=1

Yes, if you have an alternator that has two field connections and one is grounded externally. Example is a squareback case. If your case is round, you'll have to look to see if it is internally grounded or externally grounded.

If you do have an alternator that is externally grounded, then you will also have to change the wiring because the new regulator will control the ground side of the field rather than the positive side.

IMHO, there's no advantage to the update. There are several versions of electronic regulators that are "plug and play" and will give you more constant output from the alternator without changing anything. That's not to say it's a bad thing to do, it's just not a big deal to work with what's there.

 

[jct]

this is what it is currently

i already have most of the parts to do the conversion expect for the brushes