RizVet

Have a 71 350 and connector on top of alternator cracked. I forgot to mark which connector goes in which terminal side of new connector (1 vs 2) which are marked on back of alternator. One wire is black with white stripe. Other wire is slightly thinner and brownish grey in color. Car has original harness and alternator type. Any help or picture would be great. My guess is b/w wire into T1 spade. Thx

'75

#2 should be battery, voltage all the time, #1 should have voltage with key on.

RizVet

Can you direct me with wire color. Striped wire to which spade terminal, 1 or 2?

'75

The smaller wire, brownish should be #1.

RizVet

Thanks. I agree. Found this picture on web

RizVet

Difference is red wire is black with white stripe on my car. Not sure why.

RizVet

Could I ask someone with a 71 (Alan?) to post a picture of their alternator wiring for me? thanks!

Alan 71

Hi R,
This is still the original alternator from my 71.
I hope it helps you.
Heavy red, medium black, small brown/small black w/white stripe.
Regards,
Alan

RizVet

Thanks Alan!!!!

RizVet

What does the brown wire do/control?

Peterbuilt

Answer:
http://www.delcoremy.com/Alternators...s/Remote-Sense

RizVet

Interesting article. Mentions an 'S' terminal designation as the remote sense spade but the alternator you have shows a 'R' which I'd guess means remote. Strange or am I not seeing this right?

Peterbuilt

I'll guess that you have a '10SI' alternator, so you have a #1 terminal and a #2 terminal.
The article is 'in general' but the point is the sense wire tells the alternator to put out more or less volts.

19_stingray_74

Where does the Green wire connect to?

Tampa Jerry

This thread is from 2016. On the picture the green wire connects to the temperature sending unit in the head. Jerry

vettebuyer6369

Good time to start a new thread, people can post existing photos, etc.