voltage across battery when charging ?

[~The Jester~]

Are any fuseable links invlolved in this equation? If so check/delete them.

Powermaster alts are "1 wire" type, correct? If so, where does that "1" wire connect to? I belive you said the starter solenoid, right? Check for corrosion on ALL the terminals on that solenoid post. Also, no washers between wire connections on there either. Galvanzed washers make good insulators....



I'm still going with my original theory, this is gonna be something "stoopid".......

[82 GT]

This is going to be one for the archives when we find the answer.

[Hozer 88GTConv]

Jester: "Powermaster alts are "1 wire" type, correct? If so, where does that "1" wire connect to? I belive you said the starter solenoid, right? Check for corrosion on ALL the terminals on that solenoid post. Also, no washers between wire connections on there either. Galvanzed washers make good insulators...."

Powermaster one wire hookups go directly to the positive terminal on the battery.
Do you have the two blade terminal hookup for the voltage regulator on your powermaster too? I have the stock green wire going to the upper blade terminal as recommended by powermaster. Nothing is conncted to the lower blade terminal.
I don't want to sound redundant, but was the diameter of the pulley on the alternator ever measured?
I had this problem forever, b/c I switched alternators after I had installed underdrives, so my old alternator had the underdrive pulley, Not the 140 pwermaster out of the box.
I have 14.4volts at idle with a 1 7/8" alt pulley.
my grounds are crappy too, I still have that worthless stock strap from the head to the firewall and nothing going to the frame.
this one is going to be good...

[82 GT]

Originally Posted by Hozer 88GTConv

Do you have the two blade terminal hookup for the voltage regulator on your powermaster too?

Powermaster alternators have a built in regulator. I'm not sure what your're referring to about a "green" wire.
My powermaster has a 2 gauge wire from the alt. to the battery.....nothing else.

[Hozer 88GTConv]

The literature accompanying the Powermaster said to install it that way. I'll get the exact nomenclature and post it...
Believe me, I wouldn't have done it if powermaster hadn't said to do it...it was a pita...

[82 GT]

I still have NO idea what you're talking about. My Powermaster came with no such instructions. I'm not saying I don't believe you; I just don't understand why our alternators are different.
The only extra on my unit was to be able to connect the factory ammeter gauge up if I wanted to.
Maybe yours is newer than mine. Mine is about 6 yrs. old.

[Hozer 88GTConv]

It's the "A" terminal on the voltage regulator pigtail. The green wire is attached to the upper blade terminal on the powermaster to provide field current to the alternator and according to the schematic, signals to "sensors".
I bought mine maybe three years ago?
Here's a pic...I have no idea if this is really necessary, I just followed directions b/c I don't know jack about electricity.