OK...so I'm at the tail end of a boat deal and run the engines "on the hard". 1st time I've heard them run, and they start right up cold...no issues. Purr like a kitten.
they're 2001 PCM Seamaxx 315HP 5.7's and have 238 hours on the clocks. Problem is as follows....I want to fix before she splashes as the run from current port to my home port is roughly 50 miles....and splash date is nearing.
The starboard engine volt meter is showing a voltage of 16 volts or so at idle. I didnt think to put a meter across the battery to see if it was a faulty meter at the helm, as I know they are not always the most accurate of guages.
My concern is....if I check this and I'm getting an over output condition, where do I begin troubleshooting beyond the below?
I'm not a professional mechanic, but am very mechanically inclined.
Here's where I'd start...
1. Meter across battery (battery's are isolated from one another) to see voltage (if withing normal range up to 14, I'm OK and assume guage is faulty)
2. If voltage is over 14 at idle, verify all battery connections are clean and tight.
3. Trace alternator wiring to verify no shorts.
4. If above checks out, replace alternator....repeat step 1.
If the above does not correct the issue, where do I go?
they're 2001 PCM Seamaxx 315HP 5.7's and have 238 hours on the clocks. Problem is as follows....I want to fix before she splashes as the run from current port to my home port is roughly 50 miles....and splash date is nearing.
The starboard engine volt meter is showing a voltage of 16 volts or so at idle. I didnt think to put a meter across the battery to see if it was a faulty meter at the helm, as I know they are not always the most accurate of guages.
My concern is....if I check this and I'm getting an over output condition, where do I begin troubleshooting beyond the below?
I'm not a professional mechanic, but am very mechanically inclined.
Here's where I'd start...
1. Meter across battery (battery's are isolated from one another) to see voltage (if withing normal range up to 14, I'm OK and assume guage is faulty)
2. If voltage is over 14 at idle, verify all battery connections are clean and tight.
3. Trace alternator wiring to verify no shorts.
4. If above checks out, replace alternator....repeat step 1.
If the above does not correct the issue, where do I go?

