lake of the woods
New member
One of my (1988) 454 (350) engines is not charging the battery it is connected to. When running ~2000 RPM's I am getting a alternator reading of ~12 volts. My other engine is charging at 14+ volts. I have replaced the alternator / regulator and battery and checked the belt and electrical connections. I am a bit stumped as how to proceed to diagnose the cause of the problem. Any advice on how to proceed would be appreciated. The problem has persisted for over a year and I have been relying on my shore power and genny to keep the battery charged.