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The Garage
how hard is it to swap cases on an alt?
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<blockquote data-quote="Paul" data-source="post: 1017426" data-attributes="member: 9404"><p>It's pretty straightforward, but if you have an expensive 200 amp alternator, I'd probably have the alternator shop do it. I've done a few. Basically, you knock the pulley off with an impact, unbolt the three 6mm bolts, and gently pry the case halve apart. The shaft is seated in the cast center section in the back and through the bearing on the front. I've screwed one up when I was taking it apart because it didn't want to come apart evenly, and damaged some of the electronics. I've also had one where the new case was not quite the same size (probably chalk it up to machining differences) and it didn't want to go on.</p><p></p><p>I took apart and powdercoated the case on the alternator on my current motor, but since I've not fired the car yet, I don't know if I screwed it up. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Paul.</p></blockquote><p></p>
[QUOTE="Paul, post: 1017426, member: 9404"] It's pretty straightforward, but if you have an expensive 200 amp alternator, I'd probably have the alternator shop do it. I've done a few. Basically, you knock the pulley off with an impact, unbolt the three 6mm bolts, and gently pry the case halve apart. The shaft is seated in the cast center section in the back and through the bearing on the front. I've screwed one up when I was taking it apart because it didn't want to come apart evenly, and damaged some of the electronics. I've also had one where the new case was not quite the same size (probably chalk it up to machining differences) and it didn't want to go on. I took apart and powdercoated the case on the alternator on my current motor, but since I've not fired the car yet, I don't know if I screwed it up. :) Paul. [/QUOTE]
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