I recently replaced the alternator on my 5.7 and b/c of part availability had to upgrade from a 30amp to a 50amp alternator. When i took the boat out it seemed to run fine until the motor died. when i tried to start it up again nothing happened. no clicks or cranks. after following some wires I eventually figured out that the fuse relay to the starter solenoid tripped and needed to be reset. that started it up again but the same thing kept happening. it would run but eventually die and need to have the relay reset. I noticed that the relay was a 30amp. My mechanic didn't mention anything about the relay when i asked him about any issues that may come up with the 'upgrade' before hand. I intend to replace the 30amp relay with a 50amp but I would like to find out what other additional surprises lay in-store for me in switching to a 50amp alternator on a 30amp system.
Also on that day the boat seemed to be running fairly sluggish. The motor ran smooth but it seemed to only be running at about 70%; to get to my normal speed @ 3000RPM it took about 3800RPM. Im hoping that the mechanic who installed the alternator pulled a plug wire for accessibility and simply forgot to hook it back up. But given the 30amp/50amp issue I thought i'd mention it and see if anyone can link the two issues.
Mariners, your input please!
Also on that day the boat seemed to be running fairly sluggish. The motor ran smooth but it seemed to only be running at about 70%; to get to my normal speed @ 3000RPM it took about 3800RPM. Im hoping that the mechanic who installed the alternator pulled a plug wire for accessibility and simply forgot to hook it back up. But given the 30amp/50amp issue I thought i'd mention it and see if anyone can link the two issues.
Mariners, your input please!
