alternator wiring gremlin (1 Viewer)

[graham5david]

I replaced my alternator and voltage regulator and it still won't charge my battery. It will die if I unhook the positive lead from the battery. I'm not sure what is going on. Do any of you have a wiring diagram for the alternator and voltage regulator for a 1969 40 series.

 

[Solace in Solitude]

@Coolerman does --> Cruiser Wiring

Click on 1969 on the left

 

[Curt]

http://www.globalsoftware-inc.com/coolerman/fj40/schematics/FJ40/1969FJ40/1M.jpg

http://www.globalsoftware-inc.com/c...J40/1969FJ40/pre1972_FJ40_wiring_diagram1.png
http://www.globalsoftware-inc.com/c...J40/1969FJ40/pre1972_FJ40_wiring_diagram2.png

you beat me. edit

 

[graham5david]

Everything is wired properly but the alternator still isn't charging at all. I must have something strange going on

 

[Solace in Solitude]

Some potentially pertinent threads... Pay particular attention to @bj40green @Pin_Head and @Coolerman comments.

Voltage Regulator (ext.) / How it works. A @bj40green thread... explains how to adjust a VR

Alternator help on 350 swap

Charging system issues

 

[bj40green]

Sounds stupid, but start with checking the fuse. Even when the fuse looks good..... check with ohm meter for continuity.

Rudi

 

[Coolerman]

Yep, bad fuse block contacts would cause this.
Also check that the regulator and alternator are well grounded
See it you have +12V on the White/Red wire at the regulator, if not check fuse block for corrosion.
Do you have the correct alternator and did the wire harness for the alternator plug right in or are you using push on connectors? If you reverse the White/Green and White/Black wires at the alternator, the alternator will not put out anything. That might also fry the regulator...

 

[graham5david]

Fixed. Got the volt ohm meter on it today. The brand new voltage regulator from spector wasn't working. I had 11 volts at the ig terminal and nothing on the f terminal. Put the old regulator back in and it works like a charm. So either the new regulator is defective or it needs adjustment. Is it common to have to adjust a new one?

 

[graham5david]

Yep, bad fuse block contacts would cause this.
Also check that the regulator and alternator are well grounded
See it you have +12V on the White/Red wire at the regulator, if not check fuse block for corrosion.
Do you have the correct alternator and did the wire harness for the alternator plug right in or are you using push on connectors? If you reverse the White/Green and White/Black wires at the alternator, the alternator will not put out anything. That might also fry the regulator...

Coolerman I do need a new plug for the alternator. It's a 69. Do you have any in stock

 

[bj40green]

Is it common to have to adjust a new one?

Adjustment is a little bit more or a little bit less voltage.
Not working is defective.

Rudi

 

[graham5david]

I guess I will ship that defective alternator back to SOR with my alternator core. That's what I get for trying to be pro active and replace an old voltage regulator that still worked

 

[Coolerman]

I do have the connector you need in stock. Send me a PM with your mailing address.

 

[Landpimp]

new voltage regs(3-4 styles) can be had from Toyota, about $25-30, AFAIK they are available for all years, at least 64-87

Fixed. Got the volt ohm meter on it today. The brand new voltage regulator from spector wasn't working. I had 11 volts at the ig terminal and nothing on the f terminal. Put the old regulator back in and it works like a charm. So either the new regulator is defective or it needs adjustment. Is it common to have to adjust a new one?