re: alternator upgrade

thanks guys. yes indeed my alt is on the passenger side, <not under a/c as i don't have it... yet>. and i am glad it is a delco from what i read about your troubles with it Doc. but there is no rating on is as far as i can see there is "BB" stamped on it does that mean anything to anyone?

i haven't installed the electric fan yet, so i was thinking of upgrading the alt as a preventative measure... but you're right, why fix it is she doesn't complain about the load? also i haven't installed the fan as i need to figure out what temps to turn on both high and low speed. looking around at the net all i see is jeep pages and they all have it on a toggle switch ...water crossings blah blah blah. if anyone knows what a good running temp and range is for the I6 it would be much apreciated. I would LOVE to get this installed this weekend

From: <AMC74Hornet@xxxxxxxxx>
To: mail@xxxxxxxxxxxx
Subject: {FORGED?} Re: alternator upgrade
Sent: October 1, 2004 2:31:12 AM

Message-ID: <ADVANCES62RGryWtIIZ0000036e@xxxxxxxxxxxxxxxxxxxxxxx>

On September 30, 2004 Matt Haas wrote:

> Ian,
> 
> You may have a Delco alternator already. I'm pretty sure AMC started using
> them in the 70's but I'm not sure when. If that's the case and it's the
> original alternator, the output rating is stamped on the body (I think it's
> near the plug in the side but I'm not 100% sure on that). 63 amps was a
> very common size but I think there is also one around 50 amps.
> 
> If you need more amps, there are plenty of aftermarket choices. If you have
> a Delco alternator, I think you can go up to 200 amps. If you have a
> Motorola, Power Master makes 100 and 140 amp units that bolt to the factory
> brackets (this was recently discussed -- in some cases slight changes to
> the brackets and/or belt lengths are needed). If you're willing to make up
> brackets, there are all sorts of choices available.
> 
> On the other hand, if you're not having problems with your battery draining
> now, you're probably okay.
> 
> Matt
> 
> At 08:14 PM 9/29/2004 -0700, you wrote:
> 
> 
> >i've been thinking what with the high powered stereo i have, fog lights,
> >and the electronic fan i'm putting in, the stock alternator might not be
> >up to snuff not sure what the rating on one from a '77 232 is... 60A?
> >perhaps i should upgrade. what do we have available for upgrades? the
> >taurus fans pull about 75 amps for a millisecond going up to high power...
> >so maybe a 90A or 110A unit would  be a good idea. any suggestions on
> >where to look, and what will fit?
> >
> >
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> mhaas@xxxxxxx
> Cincinnati, OH
> http://www.mattsoldcars.com
> 1966 Rambler Rebel
> 1968 Rambler American sedan
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I believe 1975 was the first year of the Delco, also the first year of
electronic ignition and cat's on some models. Also if your alternator is on the
pass side under the A/C compressor it's probably a Delco. Any higher amp Delco
should just bolt in. Before changeing the alt. use a volt meter to check the
output of the one you have with all the electric's turned on. My son has a
custom built 65 amp Motorola in his 72 Javelin with a killer sterio and it is
enough with all the electric's turned on. I am the guy that had all the problems
installing the Delco in place of the Motorola on my 74 258 6 cyl Hornet with
power steering. I installed a 100 amp Power Master. It charges 14.5 volts
without a load on it and 14 volts with all the electric's turned on. 
"Doc"