Voltage regulator

[S-mck]

Gentlemen,

Working on my 1973 1200 flareside pickup with a 304.
I believe the voltage regulator is the culprit in my electrical issues, I’ve tried researching them and haven’t found plastic ones, just doing a sanity check for everyone to confirm.

 

[FDChappie]

What type of alternator does that connect to? Normally a Delco 10si internally regulated alternator would be on a '73.

 

[Scoutboy74]

Your truck is probably a 1970, not a 1973. A picture of the truck and the vin data plate would help confirm. Reason I say that is, for one thing a '73 would be a 1210. Second is a '73 would have an alternator with an internal voltage regulator.

*Also I moved this thread to a more appropriate section for good housekeeping and better attention.

 

[S-mck]

Thanks, and yes it is a 1973 1210, I will send a copy of the data plate but the pictured voltage regulator came out of the truck.

 

[Scoutboy74]

Hmm. Ok, well it doesn't belong to that truck, or shouldn't belong to it. Perhaps someone has done some type of crazy retrofit for mysterious reasons. Let's see some under hood pics then. Please show us the alternator and show us where that doohicky was mounted. Maybe we can get to the bottom of it.

 

[S-mck]

I’ll post the pics tomorrow, thanks again

 

[S-mck]

1210,1973,

 

[FDChappie]

That's a 10si alternator, so that regulator is not needed. However some of the wiring to it is missing. There's a plug with 2 wires that go's in the side. You can get the plug at the parts store.
Figuring out how to wire it is going to be challenging in that rats nest of wiring under the hood is going to be difficult.
In short the 2 wires in the plug go to the fuse block and light light on the dashboard.
Nice looking truck.

 

[S-mck]

Got it, so what is the purpose of the voltage regulator and the harness going to it? The alternator has a two wire plug in the bottom but it only putting out 11.68 volts

 

[S-mck]

All the dash board lights and gauges work

 

[S-mck]

 

[S-mck]

And thanks, I’m the third owner, I was told the previous owner replaced the transmission with a older international dump truck transmission, just going by word of mouth

 

[S-mck]

I just checked, it starts and runs fine without the regulator but it’s still not charging above 11.68 volts