Alternator/Starter Wiring

[L DC]

Thank for your reply Huw.

Yes, my 86 5KTQ has the battery under the rear seat.

Based on a alternator and starter pixs on the Haynes
manual, (I know is not the official thing, but it does
have some detail pix in there that come in handy
sometimes) your description holds:

"The 'battery under back seat' cars, I think, will
have one main battery to starter wire,  and from there
will run wires to the fusebox and alternator, usually 
with another wire running from the alt. to the
fusebox."
 
As for the starter exciter wire, I figured it goes on
the top position of the solenoid.

You mentiond, there are often 2 wires and I do see the
connection for the second one in the starter's
solenoid, but my car only has one wire to it. That's
how it was when I bought it.

Looking at my VW Quantum Syncro, with battery under
the hood, I see both solenoid connectors have a wire
going to, just like you described.

Could it be possible my 5KTQ be missing such second
wire that runs to the fuse box to keep more constant
juice while cranking?

Many thanks again for all your replys,

-Best Regards,

-Louis





--- Huw Powell <audi at humanspeakers.com> wrote:

> 
> > I have misplaced my manual, and I need help with
> > wiring. 
> 
> these answers are going to depend on your year and
> model...
> 
> this diagram:
> http://www.humanspeakers.com/audi/altpix.htm shows
> how the 
> typical 80's "battery under hood" Audi is wired. 
> The "battery under 
> back seat" cars, I think, will have one main battery
> to starter wire, 
> and from there will run wires to the fusebox and
> alternator, usually 
> with another wire running from the alt. to the
> fusebox.
> 
> > Also, the exciter wire that goes to the Selenoid
> in
> > the
> > starter, does it go to the connector on top or
> below
> > the Selenoid?
> 
> There are often two "small" wires going to the
> starter - one is the 
> "start" signal wire, and the other is a return line
> to the fusebox to 
> help keep the voltage up while cranking.  Getting
> them wrong will not 
> hurt anything, except that the car won't crank when
> the key is turned. 
> In that case, they are backwards, and you should
> switch them.  Or, just 
> try the exciter wire on each terminal to find which
> one is right.
> 
> > Finally, there is also another, 16-18 gauge wire;
> I
> > believe that one goes to the smaller screw
> position on
> > the alternator next to the big alternator power
> > search, correct?
> 
> If that is the blue "D+" wire that excites the alt,
> yes.
> 
> -- 
> Huw Powell
> 
> http://www.humanspeakers.com/audi
> 
> http://www.humanthoughts.org/
> 


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