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Wiring, Electrical & Installation
Mechman 240A: pulley resistance and brush life
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<blockquote data-quote="Big Ry" data-source="post: 8442590" data-attributes="member: 609333"><p>I purchased a 240A Mechman from SSA for my 03 Accord V6 back in May 2014. A couple weeks ago it stopped charging the battery. I had it tested at Advance, and it failed the output voltage test. So i sent it back to Mechman for warranty repair.</p><p></p><p>I got the repaired unit today. The invoice says that the alternator is functioning properly, but the brushes were at their limit. Correct me if I'm wrong, but aren't brushes expected to last at least 100k miles (if not far more)? I've had this alternator 1 year and 4 months... and i put maybe 20k on it tops (probably less).</p><p></p><p>Also, when i opened the box i rotated the pulley by hand, and it sticks at a certain point in every rotation. It takes a little effort for me to spin it beyond the point at which it sticks, and then it rotates freely until reaching that same point again. It's not so bad that i need to crank on it, but i do need to grip it pretty tight with my fingers to manually force it through this part of the rotation. And there's not a chance on hell i could give it a good hard spin and have it rotate itself through that region of resistance... just trying to give you an idea of how much resistance it has lol</p><p></p><p>Is important to note that the pulley did not previously do this when i sent it in for repair. I just took the new unit to Advance, and it tested good. But I'm really concerned about this pulley issue. Are the bearings going bad? And I'm also really concerned about how quickly the brushes wore out. I plan to contact Mechman again, but i wanted to get some feedback on these issues first. I am not reinstalling it until I'm confident that it will function properly.</p></blockquote><p></p>
[QUOTE="Big Ry, post: 8442590, member: 609333"] I purchased a 240A Mechman from SSA for my 03 Accord V6 back in May 2014. A couple weeks ago it stopped charging the battery. I had it tested at Advance, and it failed the output voltage test. So i sent it back to Mechman for warranty repair. I got the repaired unit today. The invoice says that the alternator is functioning properly, but the brushes were at their limit. Correct me if I'm wrong, but aren't brushes expected to last at least 100k miles (if not far more)? I've had this alternator 1 year and 4 months... and i put maybe 20k on it tops (probably less). Also, when i opened the box i rotated the pulley by hand, and it sticks at a certain point in every rotation. It takes a little effort for me to spin it beyond the point at which it sticks, and then it rotates freely until reaching that same point again. It's not so bad that i need to crank on it, but i do need to grip it pretty tight with my fingers to manually force it through this part of the rotation. And there's not a chance on hell i could give it a good hard spin and have it rotate itself through that region of resistance... just trying to give you an idea of how much resistance it has lol Is important to note that the pulley did not previously do this when i sent it in for repair. I just took the new unit to Advance, and it tested good. But I'm really concerned about this pulley issue. Are the bearings going bad? And I'm also really concerned about how quickly the brushes wore out. I plan to contact Mechman again, but i wanted to get some feedback on these issues first. I am not reinstalling it until I'm confident that it will function properly. [/QUOTE]
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Mechman 240A: pulley resistance and brush life
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