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just changed the alternator brushes

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  #1  
Old 02-27-2009 | 04:28 PM
jackfast's Avatar
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Default just changed the alternator brushes

because the battery light kept coming on at low RPM, got a new battery as well.
the old brushes were very worn.

now the battery light is on all the time and its idling low and rough.
any ideas?
 
  #2  
Old 02-28-2009 | 08:33 PM
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Check voltage output. If low (< 12.5V w/ lights and blower load) I would suspect your rectifier and/or voltage regulator is defective.

good luck
 
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Old 03-01-2009 | 09:12 AM
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Originally Posted by TexasHonda
Check voltage output. If low (< 12.5V w/ lights and blower load) I would suspect your rectifier and/or voltage regulator is defective.

good luck
where do i check that output?
thanks!
 
  #4  
Old 03-01-2009 | 09:17 AM
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Anywhere voltage is available (directly on battery) while engine is running. A voltage monitor that plugs into cigarette lighter outlet is available at Walmart. I keep one in my lighter outlet to monitor alternator/battery health.

good luck
 
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Old 03-04-2009 | 07:33 PM
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Originally Posted by TexasHonda
Anywhere voltage is available (directly on battery) while engine is running. A voltage monitor that plugs into cigarette lighter outlet is available at Walmart. I keep one in my lighter outlet to monitor alternator/battery health.

good luck
i get a reading of 14V with lights on and blower going, but the battery light remains on, now just at low rpms.
is there any thing else to check or any way to get it to turn off?
 
  #6  
Old 03-05-2009 | 07:16 AM
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Was this voltage reading at idle when light was on? What is idle speed?

good luck
 
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