datsun-roadsters
[Top] [All Lists]

Re: Alternator wiring revisited

To: "Daniel Neuman" <dneuman@quark.sfsu.edu>,
Subject: Re: Alternator wiring revisited
From: "datsunmike" <datsunmike@nyc.rr.com>
Date: Tue, 3 Jul 2001 18:21:03 -0400
I don't think the harness was designed for 60 Amp power although I do use a
60 amp 240Z alternator. I'd put a slow blow 30 amp fuse in the system or a
circuit breaker made for cars.

BTW, my ammeter never went past 20 or so amps even when charging.

Mike

----- Original Message -----
From: "Daniel Neuman" <dneuman@quark.sfsu.edu>
To: "Adam Bradley" <ambradley@yahoo.com>
Cc: <datsun-roadsters@autox.team.net>
Sent: Tuesday, July 03, 2001 4:52 PM
Subject: Re: Alternator wiring revisited


> Hello,
> So how many amps is the alt???  I bet it is more than 30 amps...the stock
> alt is 35 amps.  If your batt is low then I bet it was putting put more
than
> 30 amps.  I don't run a fuse from the alt to the bat. I run a fuse on the
second
> line that i have hooked up that goes ingto the old alt wire.  IF you
insist on
> putting afuse on the alt to batt wire go to radio shack and get a fancy 60
amp
> or so fuse that they use with high powered stereos.
> Daniel 69 2000
> SF CA
>
> > All was well for a few minutes until I turned everything on and then
> > saw a spark from the 30 amp fuse.  I don't know if the wiring is heavy
> > enough and I feel uncomfortable connecting it unfused as it can pump
> > out a lot more amperage than my wiring was designed for.
> >
> > I'm going to call an electrical place and ask them a few questions.
> > But hey, it was reading in the upper 13 volts on the battery while it
> > was running :^).
> >
> > Adam
> >
> > --- Daniel Neuman <dneuman@quark.sfsu.edu> wrote:
> > > Hello Adam,
> > > I can't see the back of your alt so I don't know what the 2nd
> > > is for but it shuould be ground.  I think it is a good idea to
> > > connect
> > > the alt to ground-ideally the same point as the batt gound.  Some
> > > people sway that you don't need it cause it will ground thru the
> > > engine and the
> > > existing ground straps...but more ground straps is not a bad thing.
> > > How many
> > > amps is the alt?  Is 12 guage wire going to be enough?? I thin kI
> > > have 0
> > > gauge wire in my 100amp alt. installation.  You can remove all the
> > > old wire
> > > stuff-voltage regulator and stuff tape up the old connection that you
> > > can't
> > > remove.
> > > With this set-up the alt wil only charge after you goose it up to
> > > like
> > > 2000rpm then mine usually stays charging till the revs drop below
> > > like 700rpm.
> > > For peace of mind I would hook it up and check the charginmg voltage
> > > with a
> > > voltmeter first thing.should be above 13.8 ish volts. Then you should
> > > install
> > > a voltmeter somewhere on your dash.
> > > Daniel 69 2000
> > > hope that was coherent...started celebrating my birthday early last
> > > night with
> > > one to many margaritas....
> > >
> > > > OK, I've installed the GM one wire alternator and wired it.  (I was
> > > > surprised that it fits in the stock late alternator location and
> > > the
> > > > pulley lines up; the only mod. necessary was to enlarge the bottom
> > > ear
> > > > hole on the alternator).
> > > >
> > > > OK, now for the reason for this e-mail.  I want to make sure I've
> > > wired
> > > > it correctly before I hook up the negative battery post.  I
> > > connected a
> > > > 12 gauge wire with an inline 30 amp fuse from the "red" post on the
> > > > alternator directly to the battery + terminal.  I connected the
> > > other
> > > > post on the back of the alternator to ground.  I've seen messages
> > > > stating this is not necessary.
> > > >
> > > > Does this sound right?  Am I going to blow up my car or melt my
> > > wiring?
> > > >
> > > > More importantly, can I completely disconnect my external voltage
> > > > regulator and leave the connector dangling?  Do I have any other
> > > wiring
> > > > I need or should do?
> > > >
> > > >
> > > >
> > > > =====
> > > > Adam
> > > > '70 1600 SPL311-28181
> > > > http://www.picturetrail.com/abend
> > > > Get personalized email addresses from Yahoo! Mail
> > > > http://personal.mail.yahoo.com/
> >
> >
> > =====
> > Adam
> > '70 1600 SPL311-28181
> > http://www.picturetrail.com/abend
> > Get personalized email addresses from Yahoo! Mail
> > http://personal.mail.yahoo.com/

<Prev in Thread] Current Thread [Next in Thread>