stock alternator output

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stock alternator output
1984 CJ7

1984 CJ7

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Location
Portland
Vehicle(s)
1984 CJ-7, 258 (rebuilt), 5 speed (rebuilt), softtop, Goodyear DuraTrac's
<div class="bbWrapper">Jus curious as what that number is. I am looking to buy a new one and I think the about buying have 140 amps. Will that be ok? the only thing i am running is a radio.</div>
 
<div class="bbWrapper">The stock Alternator is a Delco 10si and it puts out 63 amps. An easy upgrade is the Delco 12si. It has an output of 94 amps. The two use the same frame so no mounting modification are needed.<img src="/community/smilies/biggrin.gif" class="smilie" loading="lazy" alt=":D" title="Grin :D" data-shortname=":D" /><br /> <br /> This will explain it all...<br /> <a href="http://www.madelectrical.com/electricaltech/delcoremy.shtml" target="_blank" class="link link--external" data-proxy-href="/community/proxy.php?link=http%3A%2F%2Fwww.madelectrical.com%2Felectricaltech%2Fdelcoremy.shtml&amp;hash=8ce82ebbe44a952d2952b2f228bd5750" rel="nofollow ugc noopener">Catalog</a></div>
 
<div class="bbWrapper">Perfect, thanks!</div>
 
<div class="bbWrapper">weird, my alt looks like the 12si and not the 10si. i am basing this off of the fan design. I wonder if the previous owner did this upgrade?</div>
 
<div class="bbWrapper">look at the vents on the back side. the 12si has larger vent holes.</div>
 
<div class="bbWrapper">Ok, I will check it out. On a sid enote, do I need to take the entire fan assembly off to change my belts?</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 8626" data-quote="1984 CJ7" data-source="post: 135037" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/community/goto/post?id=135037" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-135037">1984 CJ7 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> On a sid enote, do I need to take the entire fan assembly off to change my belts? </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0"><span style="color:orange">Click to expand...</span></a></div> </div> </blockquote> You shouldn&#039;t have to I have done mine without pulling anything.</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 8297" data-quote="mtnwhlr" data-source="post: 135038" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/community/goto/post?id=135038" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-135038">mtnwhlr said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> You shouldn&#039;t have to I have done mine without pulling anything. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0"><span style="color:orange">Click to expand...</span></a></div> </div> </blockquote> <br /> Ok, I figured I would change them when I do the alt. Thanks!!</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 8626" data-quote="1984 CJ7" data-source="post: 135023" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/community/goto/post?id=135023" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-135023">1984 CJ7 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> I think the about buying have 140 amps. Will that be ok? the only thing i am running is a radio. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0"><span style="color:orange">Click to expand...</span></a></div> </div> </blockquote>No need to get anything bigger than stock if you are running a stock CJ. Those high output alternators take a more to turn. I&#039;m not saying you will get lousy mileage just from an alternator. I&#039;m just saying there&#039;s no need to get a high output alternator.</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 1671" data-quote="BusaDave9" data-source="post: 135070" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/community/goto/post?id=135070" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-135070">BusaDave9 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Those high output alternators take a more to turn. I&#039;m not saying you will get lousy mileage just from an alternator. . </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0"><span style="color:orange">Click to expand...</span></a></div> </div> </blockquote><br /> Actually there is only a load when it is charging. If the battery is full there is little hp loss. <br /> <br /> I went with a 140 amp one-wire. About $100. Cleaned up the engine compartment too. <img src="/community/smilies/biggrin.gif" class="smilie" loading="lazy" alt=":D" title="Grin :D" data-shortname=":D" /></div>
 
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