No charge alternator

[Vanderstel]

67 Satellite 318 new rebuild

I've got the engine back in, and 1st start of the 318 went well, but I didn't keep good track of my wiring. I'm not getting a charge from the alternator. I place a volt meter on the large terminal and ground and nothing.

See the attached picture, I don't know what to do with the two FLD spade connectors. Can someone help?

Please explain as if I were a child....

 

[ruffcut]

There should be 2 wires in the harness that plug onto those terminals.

 

[dadsbee]

There should be 2 wires in the harness that plug onto those terminals.

Not on a '67 if it's stock wiring. One green wire to the regulator. The other spade will have to be grounded. Check with an ohm meter that one of those spades isn't already grounded to the case.

That's a '70 and up square back alternator with dual fields vs what would be a stock round back for '67 with one.

 

[Vanderstel]

Neither spade is grounded. The small bolts holding the spades are...

There is continuity between the two spades, but not 0

The wiring under the hood has been cobbled a bit, not be me, but a previous owner, so I'm trying to sort things out. Eventually I'll replace with a complete new harness.

 

[Jerry Hall]

The terminal you show should have a green wire plugged on it. That goes back to the voltage regulator. The other spade terminal should show ground to the case. If not ground it, to the alternator case. If it still doesn't show to be charging get another alternator.

 

[dadsbee]

Neither spade is grounded. The small bolts holding the spades are...

There is continuity between the two spades, but not 0

The wiring under the hood has been cobbled a bit, not be me, but a previous owner, so I'm trying to sort things out. Eventually I'll replace with a complete new harness.

Okay, then you got a better one than most that find one or both of the spades aren't isolated and burn up their '70 up style wiring. Put the green wire to the regulator on one spade and make a jumper wire to put on the other spade and jump it to a good ground, like that non-stock stud you have an arrow to (or just remove the isolation washers to ground the one field and get rid of the one spade)

 

[Vanderstel]

Turns out I have green spade connector at the alternator, hadn't noticed before, I can't tell where it goes. Which spade connector should I use? Or does it matter? The one on the left or right? They both appear to be marked FLD

 

[Nacho-RT74]

It doesn't matter, but TIPICALLY ( and just for "correctness" if the correctness therm fits here ) on the one opposite side to the diodes bank ( left one on pic )

 

[Nacho-RT74]

This is how would look the correct alt for your car. You can notice the single prong on the opposite side to the diodes bank (positive pole diodes at least) with the red tag, and the grounded brush, attached directly to the alt case

 

[Vanderstel]

Still no charging. I connected the green wire I had to both the FLD terminals and no change, I measure at the battery and the alternator and I'm getting 12.5V.

I'll have to check the rest of the wiring I guess.

The green field wire goes to the voltage regulator?

Why when I measure at the hot and ground of the alternator, I get nothing? The FLD connection must be made before it'll charge?

 

[dadsbee]

Did you read anything we told you. Nobody said to connect it to both terminals. Read it all again. Green on one field, the other field spade has to be grounded.

 

[Vanderstel]

I didn't connect to both, I tried both, the only thing I didn't do was ground the other, which I will now do.

 

[Mike Brini]

I had the same problem with my. 66 Belvedere. Someone installed a dual field alternator but didn't upgrade to a dual field style regulator. Fix is real simple. Install a new style regulator (triangular shaped plug in front) you'll also need a harness plug. I got both at NAPA auto parts. Green wire goes to one side of alternator field and you add another wire from regulator to other side of alternator and viola!. http://www.dodgecharger.com/forum/index.php?topic=132236.0

 

[Vanderstel]

I'm charging now, after I grounded the other FLD connector, it started working. I'm registering around 14V now.

 

[dadsbee]

 

[joemish]

Still no charging. I connected the green wire I had to both the FLD terminals and no change, I measure at the battery and the alternator and I'm getting 12.5V.

I'll have to check the rest of the wiring I guess.

The green field wire goes to the voltage regulator?

Why when I measure at the hot and ground of the alternator, I get nothing? The FLD connection must be made before it'll charge?

check your voltage regulator

 

[Vanderstel]

check your voltage regulator

It's working

 

[Rusty 72]

I "believe" you can also ground to the case by removing the insulating bushing behind one of those bolts.

Glad you got it figured out.