[DeTomaso] Alternator options

[Will Kooiman]

I bought one from Hall about 4 years ago.  It was a Ford internally
regulated alternator.  It went out about 2 years ago.  My dipstick tube
broke and the blowby sent oil vapors all over the alternator.  It was so bad
that it shorted something out inside the alternator.  Sounds weird, but
that's how it happened.

I hauled the alternator to the parts store.  They couldn't find it in the
parts books.  I went to 3 more stores, plus the Ford dealer.  Nobody knew
what it was.  The Ford dealer said it was probably from an irrigation pump
or tractor or something like that.  It wasn't ever installed in an
automobile.

I ended up buying an alternator from a 5.0 Mustang.  It is slightly larger
than the Hall alternator.  It works, and is easily replaced, though.

To clarify, the Hall alternator looks just like a normal 5.0 internal
fan/internal regulator alternator, but it is about 10-20% smaller in
diameter.  The 5.0 alternator is about the same diameter as the stock 1972
Autolite/Motorcraft alternator.

The best solution might be to contact one of the vendors in the 5.0
magazines to see if they can provide a high output / small diameter
alternator.  They take out full page ads for this kind of stuff.

Will.

-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of MikeLDrew at aol.com
Sent: Sunday, July 29, 2007 4:57 PM
To: pantera at kommevalla.se; detomaso at realbig.com
Subject: Re: [DeTomaso] Alternator options


In a message dated 7/29/07 13 44 22, pantera at kommevalla.se writes:


> What brand is the stock alternator? The alternator in my car is a 
> Motorcraft
> with external regulator (I can't see any other data on it). What other
> alternators could be used?
> 

Yes, that's the stock unit (probably) and it's fairly underpowered for the 
high electrical demands that the Pantera has.

It is quite easy to buy a replacement alternator with increased output; all 
the Pantera vendors carry them, as well as the on-line parts shops like
Summit 
Racing.

Your choices are to buy a direct replacement with a higher capacity (which 
uses the stock voltage regulator), or a more modern unit with a built-in 
internal regulator.   Those come in both three-wire and one-wire flavors.
There has 
been much debate as to whether a three-wire is superior to the one-wire 
configuration.   I believe that the one-wire advantage is one of appearance
only, 
as they look neater when installed on a hot rod with an exposed engine 
compartment.   But for our purposes I think a three-wire unit is the best
option.

My car actually has a General Motors alternator, from a Corvette I think, 
although I don't remember the specific part number.   It required a spacer
to fit 
in the bracket correctly if I recall.

Mike


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