natsgrampy
Petty Officer 2nd Class
- Joined
- Aug 31, 2010
- Messages
- 172
Out on the river yesterday for about 4 hours when I got an alarm from the GPS stating "high voltage input". The meter on the dash was pegged to 18 volts, this was at 3700 RPMs. I throttled down to idle and as soon as the RPMs began to drop down the voltage dropped to 14.
I throttled back up without incident for another 20 minutes then the voltage went back up to 18, slowed down again and voltage dropped back to 14. Continued up the river for about another 45 minutes to the dock and had no further issue running at normal speed, say up to 4000 RPM.
Not sure where to start to investigate. Could this be an alternator issue? And what else could create this issue?
I throttled back up without incident for another 20 minutes then the voltage went back up to 18, slowed down again and voltage dropped back to 14. Continued up the river for about another 45 minutes to the dock and had no further issue running at normal speed, say up to 4000 RPM.
Not sure where to start to investigate. Could this be an alternator issue? And what else could create this issue?
