Hi all...I have started the switch over to a powermaster 140 Hi-Output alternator with a 3-plug wire and the main power wire on a gold post on the back of it. My question is, since the new one is internally regulated(I think number on alternator is 67802) can i just cut out the other regulator completly and just splice all the wires together. If so...what is the point of the other two wires coming from the back of the alternator to the regulator? I think that I may have missed something here...since I thought that Internally regulated meant that it was a 1 wire...help me please!! I am about to give up on it.

It just means they moved the regulator into the alt.
At the original reg. conector, you have to leave one wire disconnected, hook two together and send it plus the remaining one to the alt. I did mine about five years ago and can't remember the colors. I just compared the wiring diagrams from an older and newer car and made it match up.
They also make a adapter to do it real clean. Painless makes it I think. You'll need to change the plug at the alternator too. The externals are square and the internals are a rectangle IIRC.
The internal connector should be available at the parts store.
There is probably someone on the Electrical board that knows the colors and wires already. I'm at work :rolleyes: or I'd go look.

Could you do me a huge favor and check when you get home...I have three on a rectangle, large red(charging goes to positive) and a black and brown. could you tell me which ones(color) are tied together and such.
Thnx a bunch

Let me make this all very simple, run a good heavy gauge wire from the back of the alt lug to the battery. On the plug to the alt, ON AN INTERNALLY regulated alternator, take the wire closest to the lug and cut it off, run the other wire to the battery lug on the alt. All done, you do have to goose the throttle when you first start up to get the alternator "turned on". You can buy the alt harness pigtail at the part store for a few bucks if you want fresh wiring.

what does this do to the generator switch?
will it still function or will it disable it?
also which one close to the lug are you talkin about?... I(this one?) I I(power to alt.)
(III is just the three wire on the rectangular harness on the top of alternator)

I know this is hard to explain with out seeing it but ehh.. :confused:
thnx

Yes, you are simply going to disable the original regulator. On the new alternator there are 2 connections, one is the large battery lug that actually charges, otherwise known as the chargewire, the other connection should be a 2-wire connector, one is the "tickle" or ignition feed and the other is battery warning lamp. the ignition feed is the terminal farthest away from the battery feed lug, that is the wire you want hook up to the battery lug-it will just be a short jumper a few inches long. The other wire is nothing, cut it off flush at the plug. That will give you a one-wire alternator. i hope I explained this OK. Tough to do without a picture. Maybe tomorrow I can take a pic of mine if that will help.

Why don't you use the search function in electrical forum? One Wire Alternator!!! this subject has been asked and answered about 500 times this year. There is enough information about this that you will get sick of reading it.


Rocky

i do not have 2 wires and a large lug on the back...i have a large lug, 2 small wires and a larege wire..(3 wires in the plug) this is a powermaster 140amp not a delco-remi

http://www.chevelles.com/techref/ftecref14.html

I don't know why you have 4 wires total w/o tracing them.
Using a stock 71 diagram, Disconnect the harness from the reg.. Connect the brown and dark blue wires in the connector together. Connect the white wire from the reg connector to the big red wire on the horn relay. This is the best method. You can also connect the white and orange wires in the reg. connector together. The white wire in the reg connector is the same wire as in the alt connector. It is the voltage sensing wire for the alt.. The brown wire is the on/off signal from the key switch. Look at a diagram and you'll see.
This is a link for a CS130 alt install. It is very similar. CS130 install (http://www.chevelles.com/techref/ftecref14.html) Also, you don't think Powermaster makes those alternators do you? Most of the them are reworked CS130 or 12SI Delco Remy's.