Saturn Upgrade Alternator Full Write up

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Saturn Upgrade Alternator Full Write up

Postby BOBLOOK » Fri Jun 21, 2013 6:58 pm

Saturn Upgrade Alternator Full Write up', 'NOTE: if full picture isnt viewable, right click on it and click view picture. Why do this swap? Having problems with dim lights, weak idle, or things shutting off? Upgrade your amps form 55* to 95* Eliminate External Regulator
Things you need: Saturn Alt. from 4cyl. 94-97 ($30)3TC Alt. Pulley Grinder Volt Meter!basic tools and knowledge. Start with the SAturn Alt.

First you need to take the Saturn Pulley off to replace it with the 3tc pulley. but leave off the 3tc pulley for now


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After the above^^^ place your 3tc pulley on the saturn alt. keeping the saturn fan spacer.Get your bracket and grind her down!

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grind a bit off the casing, not too much! its a thin case!

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When installing, your belt may go right on with no problem. i had a small belt, i needed to place it on all the pulleys before installing any mounts. what ever works for you.This is how much adjustment you get from all the work yo have done! maybe more if you grind more and work harder at it. also Rooster_Cogburn says he drilled a new hole for better angle, i didnt.


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You can hook up your large thick wire that goes to the battery, just as you would on your regular ALT. its the single wire that is bolted to the casing.And Rooster_cogburn says to get a thicker wire or fusible link. i didnt.I use the stock Saturn ALt. has 2 wires and the 3tc has 3 and i used 2 from the 3tc and test the wires with the key in the ign position and test the plug with a volt meter\nyou should get 2 of them with 12v and 1 ground.And i tested the saturn alt. with both 12v connections and it worked.The saturn striped wire goes to the 12v on 3tc andthe solid goes to the ground on 3tc and eliminate the voltage regulator


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I have a 82 SR5. my charge light came on after this swap. i need to figure out what i need to do to get it to work
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Re: Saturn Upgrade Alternator Full Write up

Postby cnister1 » Sun Jul 21, 2013 10:57 pm

I got a question regarding the voltage regulator.

how do you eliminate the voltage regulator?

and do you need to jump wires on the regulator plug?
here is an example, check picture on post #16 http://community.ratsun.net/topic/7830- ... o-wire-in/

or do you leave the voltage regulator connected?
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Re: Saturn Upgrade Alternator Full Write up

Postby BOBLOOK » Mon Jul 22, 2013 5:31 pm

Eliminated it you only use two wires of it the yellow for the S (light) and the F field (12v switched)
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Re: Saturn Upgrade Alternator Full Write up

Postby osrolla » Mon Jun 16, 2014 1:42 am

Ever find out why your charge light came on?
82 te72, 1.8 3tc, cam, headers, weber 32/36. ALOT more to come!
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Re: Saturn Upgrade Alternator Full Write up

Postby BOBLOOK » Mon Jun 16, 2014 3:33 pm

osrolla wrote:Ever find out why your charge light came on?


Because he didn't connect it the way it suppose to be connected
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Re: Saturn Upgrade Alternator Full Write up

Postby BOBLOOK » Sun Nov 09, 2014 9:44 am

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