One wire alternator

[Hanover Mopar]

is it possible to hook up a one wire alternator wrong. One wire to battery and one wire to ground right. New Tuff Stuff alternator will only put out 11.7 volts and the alternator is very hot in a short time. Defective, yes???

 

[747mopar]

What are you grounding? All the one wire alternators I've ever used just had one wire to the battery? It should ground to the block threw the brackets anyways.

 

[Mike67]

On the wiring kits of the last two cars I did had a heavier gauge bypass wire ( >90amps) that ran from the alt to the hot feed on the starter instead of the battery.

 

[Hanover Mopar]

instructions say to ground the case and show the post to connect to and as you said it should ground through the bracket anyway. the unit heats up bad very quicky.

 

[poly1963]

I just put one on my sweptline 67 works great check your connection make sure you don't have them crossed, is battery good?

 

[65 3 times]

I purchased a black powder coated tuff-stuff alternator that made three 1/8th mile passes and quit. Dave

 

[not so famous bob]

I purchased a black powder coated tuff-stuff alternator that made three 1/8th mile passes and quit. Dave

I have a 130 amp , one wire on my 505, only wire on it goes to the relocated Chrysler rely-battery post. battery is in trunk.

 

[Hanover Mopar]

Summit sending another. They think defective as do I. Shouldn't get burning hot after 30 seconds of run time.

 

[451Mopar]

Summit sending another. They think defective as do I. Shouldn't get burning hot after 30 seconds of run time.

Sounds like it had a short circuit.

 

[Wietse]

According me you have 1 (big) wire that supplies the 12V to the battery and the rest of the system.
And 1 thin wire is your "field" connection that goes to the voltage regulator.
Dunno what happens if you would ground the Field wire?
As mentioned, the ground normally is already applied by installation to the engine.

Or is this a alternator with integrated voltage regulator??

 

[bigmanjbmopar]

The first one i bought went out, turned out under the built in regulator a wire had been pinched during manufacturing and finally cut through shorting out and not charging anymore. Got another one and it's been fine, sent the pictures of it to Tuff stuff they just shrugged their shoulders so I SAID THANKS LAST PRODUCT i ever buy from you good by

 

[oldbee]

Alt. probably bad but just remember that a lot of these new hi-amp alternators can be burned up trying to charge up a very low battery(why I don't know).

 

[Hanover Mopar]

This was a one wire alternator. Internal voltage regulator, no field wire needed. The only other wire was a extra case ground to make the mounting hardware was not a weak ground

Summit was great on this issue, I had another one on the way and UPS was at my door the next day with a return label and took the defective one.

Will report on new one when it arrives.