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Re: electrical system questions

To: corcoran@bainbridgeisland.net
Subject: Re: electrical system questions
From: "Thomas Walter" <ra0618@email.sps.mot.com>
Date: Thu, 21 Sep 2000 12:39:05 -0500
Tim,

Thanks for the correction.

Funny thing is my '63 Bluebird had an alternator with
a replacement regulator. The original carbon pile 
regulator was in the glovebox.  I had forgotten about
the positive ground alternators (diodes are just wired
different).

Cheers,

Tom


T and E Corcoran wrote:
> 
> Tom and Roman,
> 
> 1963 1500 single carb's had a pos. ground generator with carbon pile
> regulator.
> 
> 1964(5) 1500 or dual carb'ed with third seat had a pos. ground
> alternator with conventional regulator.
> 
> 1965 1500 no third seat I believe was also pos. ground with
> alternator.
> 
> 1966 1600 and up were neg. ground alternator.
> 
> Tim C.
> 2 '64 1500 Fairlady's
> 
> Thomas Walter wrote:
> 
> > Roman,
> >
> > The '63 vehicles were positive ground (i.e. the single
> > carb'd 1500 engine).
> >
> > I think SOME '64 vehicles were still positive ground. They
> > had a generators fitted to them.
> >
> > Later cars (i.e. some late '64) and '65 on have alternators
> > fitted. Those are all negative ground.
> >
> > I know ALL alternator fitted vehicles were negative ground.
> > What I am not sure of if Datsun had any negative grounded
> > vehicles fitted with generators. Perhaps someone who knows
> > the early years better can supply that tidbit.
> >
> > Oh, on a generator you are instructed to "flash" the windings
> > when installing them. In reality just bolt them in place, and
> > have the battery charged up before starting the car. The
> > generators will "self magnetize" to supply the correct polarity.
> > This is one reason why you will see lots of older.
> >
> > The '63 Bluebird I had sold early this year had a later model
> > alternator fitted. Never had it running to see if the water
> > temp and fuel gauge's worked correctly. That is the only typical
> > problem when changing polarity of the system. Of course the wires
> > to the ignition coil need to be swapped if you find the center
> > electrode of the plugs has no wear, but the "J" grounding electrode
> > has worn down.
> >
> > Cheers,
> >
> > Tom Walter
> > Austin, TX
> >
> > Roman Rist wrote:
> > >
> > > --- Adam Fox <foxy@pipeline.com.au> wrote:
> > > > My 65 1500 is neg ground(thank god for that!)
> > > >
> > >
> > > Come that way? or was it converted?
> > >
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