Great info on the alternators, but... Doesn't the voltage regulator prevent
the full 60 amps from hitting your wiring harness? As I understand the
regulator, it sends only what is required by the electrical load. As to
the amp guage not working, I have to disagree. Mine works perfectly,
although only up to 30 amps which it would rarely hit, unless I have a dead
battery. I have a pair of 30 amp fuses protecting my relatively fragile
amp guage as well. As to the wiring. I am using a stock harness on
the '67 and just hook up the white wire to my AC Delco, with a line run to
#2 post on the alternator. No problems with that set up and it's got about
6 months of a 160 mile daily drive on it.
Good luck!
Eric
----- Original Message -----
From: Adam Bradley <ambradley@yahoo.com>
To: <SLBESQ@aol.com>; <datsun-roadsters@autox.team.net>
Sent: Tuesday, January 01, 2002 3:16 PM
Subject: Re: alternator conversion help
> If you have your alternator in the stock (passenger side) location for
> 67.5, the swap isn't too difficult. You want part number 7127SE (self
> exciting), or you can get 7127 without self-exciting and make a wire to
> run from the #2 prong on the two prong connector to the + post on the
> back of the alternator. The SE is a little more expensive and you're
> not as likely to find it in stock. The part number is followed by -3,
> -6, -9 or -12, which refers to the location of the two prong connector,
> like a clock. -12 is good, so is -3. -6 points down and -9 points to
> the engine so those two are bad choices.
>
> There are many wires coming out of the stock alternator; most of them
> go to the voltage regulator, NOT the battery. Only the one large(r)
> wire goes to the battery via the ammeter. I believe there is also a
> ground wire, which is not needed on the one wire conversion.
>
> I recall someone saying a 60 amp Z ammeter fits in the 67.5 gauge, but
> I believe you'd have to upgrade the whole wiring harness to get it to
> support that high amperage, so for right now I'll assume you're not
> going to do any of that.
>
> So, connect the alternator in place of the old one. If I'm correct, it
> will fit right in and even the pulley should line up, although the
> pulley may be a bit smaller. This assumes the late and early roadster
> alternators are the same; the one wire alternator fit right in the
> stock location of my '70 but the heat destroyed the internal regulator
> (late cars have alternator on driver's side and smog pump on passenger
> side).
>
> Anywhoo, wrap up the voltage regulator wires and the hot wire going to
> the old alternator. You will not use any of them. Run a new 8 gauge
> wire (wire and crimp-on connectors at your local NAPA auto parts store)
> from the + of the new alternator to the + of the battery.
>
> Your ammeter will no longer read properly. A voltmeter is easy to
> install and gives you essentially the same thing - the health of the
> charging system. They are under $20 for a cheap one and much easier to
> install than an ammeter.
>
> Take a look at my alternator pics at
> <http://www.ofoto.com/I.jsp?m=58213969203&n=435884809>. Mine is on a
> late car so the alternator is pushed forward, but you get the idea and
> the wiring would be the same.
>
>
> --- SLBESQ@aol.com wrote:
> > hi all
> > happy new year! may the new year bring all of us peace and
> > prosperity.
> >
> > because it's a holiday, i have some time to spend on the roadster. i
> > have
> > had to jump it lately, so i wanted to see what the alternator was
> > putting
> > out. (battery mounted on passenger side of the trunk) it wasn't
> > good (12.8
> > at idle, and drops from there to 6 or 7 with the lights on). i
> > wanted to
> > upgrade to the "one-wire" delco, so i guess now is the time.
> >
> > is this something that i can do myself? i mean, with my obviously
> > limited
> > knowledge and skill. what else must i change? how is it that only
> > one wire
> > comes out of the delco and five or so come out of mine? do i need
> > new
> > mounting hardware? is there a "kit" for doing this swap?
> >
> > thanks a million for all your help.
> >
> > steve
> > 67.5 H20
> >
> > /// datsun-roadsters@autox.team.net mailing list
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> >
>
>
> =====
> Adam
> '70 1600 SPL311-28181
> http://www.picturetrail.com/abend
>
> /// datsun-roadsters@autox.team.net mailing list
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