No Power to the Ignition Switch

[CDAWaves]

I have a 2005 24V with marine power 5.7. went to start it for first time this year and have no power to the Ignition switch. There are 4 terminals on the back of the ignition switch and checked all of them because I wasn't sure which was the constant hot.

Does anyone know where the ignition switch gets power from so I can start working my way back downstream?

I'm desperate because I am heading to the lake for a week for the 4th July and trying to figure it out.

I have power to the positive bus bar under the dash and the panel switches work for blower, lights etc.

The fuse isn't tripped on the main wire from battery to the engine harness.

I opened the electrical box on the top of the engine where the start relay is and there is no power to that relay. Not sure if that's normal. The red breaker button on the side is pushed in and doesn't appear tripped.

There is no fuse between the battery and the starter and there is power to the starter terminal.

Battery is good at 12.6 v.

I did put a new HO alternator in the off season but.only needed to upgrade the wire from the alternator to the starter. I didn't mess with the wire harness.

[CDAWaves]

Reporting back on this issue after getting it solved. It turns out the work I did last fall installing the alternatore caused the issue. Here is the story. The factory wire (main charging wire) from the alternator to the starter solenoid was replaced as a part of the high amp alternator upgrade. This main charging wire was embedded in the wiring harness so rather than taking apart the whole wiring harness and replacing with a larger wire that wouldn't fit in the OEM conduit, the wire was cut and abandoned and a new larger gauge wire added as replacement.

It turns out that there is a goofy splice in the middle of this wire which is buried deep in the engine wire harness. There is no way to tell that it's there. This splice feeds the entire engine side of the boat's electrical system. The image below shows the splice (the large wire cut at each end is the positive feed from alternator to the starter solenoid and the stubby smaller wire is what feeds the entire engine side of the electrical system. Hope this tidbit helps someone in the future that's doing an alternator upgrade!

Alt Wire.jpg