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Unread 10-04-2002, 12:59 AM   #1
blackdog
Registered User
1985 CJ7 
 
Join Date: Nov 2001
Posts: 35
Alternator

I've got an 85 CJ-7 with the
258. I'm installing the mopar mpi
system and I've got a few off road
lights. As a result, I want to upgrage
the alternator from the stock model
to something with a little more juice.
Any suggestions? Who makes them
and how big (amperage) can I get?
More is better ..... ?

Any suggestions or help would be
greatly appreciated.

Thanks,

Mike

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Unread 10-04-2002, 06:02 PM   #2
CJ7Jeff
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Join Date: Dec 2001
Location: Oklahoma
Posts: 138
I found some good prices on high amperage alternators at www.4alterstart.com. I am thinking of going with the 130 amp one.
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'85 CJ7 258 w/Weber Carb and Nutter Bypass. Dana 44's F&R, 3.73 gears with Trac-Loc rear. Always looking for peoples $0.02.
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Unread 10-05-2002, 10:31 PM   #3
kyp
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Join Date: Aug 2002
Location: Louisiana
Posts: 10
I can help

I rebuilt Starters and Alternators and made many mods for and type of tractor and vehicle from trucks (big and small) Limos(they need lotts of amprage) and Tractors.
The easyest way to upgrade you elect. system to handle your needs is naturally to change your alternator.Seeming you have a good battery (allways put the biggest battery that will fit)
What you need is a CS130 Alternator They came stock on your Chevy trucks. most of them are 110-130 amps.
You can get a used one from a junk yard but you need to know the mount type before you buy, Or you can go to an auto parts store and buy a new one. Request one for am 90 Buick Century.
It is a 110 amp alt. that has an straight up and down mount that will fit mostly any mount. It should handle all your needs. You also need the plug for the alt. you can cut one from a wrecked veh. any type will do as long as it is the same plug the diagram is simple if i remember off hand it is the white wire (bug wire) that will be going to your Battery positive for voltage sence and the brown wire for the ignition sence. This should do it I hope this helps you.
Kip
KD5TTZ(ham opperator)
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We have done so much for so long with so little, That now we are qualified to do anything with nothing.........
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Unread 10-06-2002, 09:32 AM   #4
CJ7Jeff
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Join Date: Dec 2001
Location: Oklahoma
Posts: 138
Kip,
What year of chevy trucks did the CS130 alternator come on? I am assuming that you would have to change the pulley? Another question is why pay 100 bucks or more for a 105 amp alternator when I can get a 130 amp alternator for 60 bucks from an alternator shop? Is there any reason why I should doubt the advertised output of the one from the alternator shop? If so I would like to know that way I don't wind up wasting money?
__________________
'85 CJ7 258 w/Weber Carb and Nutter Bypass. Dana 44's F&R, 3.73 gears with Trac-Loc rear. Always looking for peoples $0.02.
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