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Old 01-10-2019, 07:36 AM   #10
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Join Date: Feb 2011
Location: Parkville, MD
Posts: 759
Re: Dimming lights, altenator or battery?

I wonder if it would be worth it to swap the pulley on the alternator so it is spinning faster at idle and charging more. You would want a smaller pulley on the alternator.

I would say dimming at idle is not abnormal, especially if you still have a generator.
1970 C20 Custom Camper - 350, TH350
1997 GMC Suburban
1994 Acura Integra GSR
1987 Dodge Daytona Shelby Z
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