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Old 10-25-2010, 09:36 AM   #1 (permalink)
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magnets out of place in rotor

I have a 2000 Ultra that quit charging. No ac output from the stator. Pull the rotor and found nothing wrong with the stator. I inspected the rotor and found that the magnets had all slide together. They appeared to have come unglued. Has anyone had that happen? Does anyone know what the cause could be? Can I glue the magnets back or do I just need to replace the rotor?
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Old 10-25-2010, 09:59 AM   #2 (permalink)
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If the stator checks out ok, the magnet shifts would be the culprit. For the service time involved to re do it the second time, why reglue it?
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Old 10-25-2010, 11:28 AM   #3 (permalink)
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Quote:
Originally Posted by DR_DEUCE View Post
If the stator checks out ok, the magnet shifts would be the culprit. For the service time involved to re do it the second time, why reglue it?
If I can reglue the magnets, I'd save a couple of hundred bucks. I shopped the rotor last night and 45 amp rotor is $154 more than the standard rotor.
I still don't understand what caused the magnets to shift. The bike has 75K. I replaced the stator a couple of years ago. I've just never seen the magnets shift.
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Old 10-25-2010, 11:59 AM   #4 (permalink)
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Somewon may have used an air impact wrench to tighten the comp. sprocket nut.
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Old 10-25-2010, 01:59 PM   #5 (permalink)
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It is a fairly common problem, I have had it and fixed a couple others. Never tried to re-glue it, but if I did, I would clean the snot out of all the pieces and re-glue with either slow setting epoxy or JB weld, clamping everything in place while it dried. Not sure of the temp requirements for that location, but I'd bet 250 would be adequate. Thing is, them sliding all together saved the stator. They don't always do that, sometimes they come off and eat the stator, so a new one might be more cost effective in the long run.
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Old 10-25-2010, 02:04 PM   #6 (permalink)
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Quote:
Originally Posted by DEW2112 View Post
Somewon may have used an air impact wrench to tighten the comp. sprocket nut.
Nope; I've always used a torque wrench to tighten the compensator nut. I use an impact to remove it. No one has put a wrench on it but me.
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Old 10-25-2010, 02:44 PM   #7 (permalink)
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the 0lder laminated rotors did this a lot in 2000. there is upgraded part number to a solid piece rotor
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