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Spook, disconnect both batteries and then check the wire from the GEN2 positive terminal back to the 24v 24v buss. You are looking for the big blue fusible link. You should go ahead and remove all the wires and clean all the terminals. I have to ask what your mechanical/electrical skills...

From the factory, each of the alternators are the same. GM 1105500 Both have the tack post. Just the drivers side uses it for the STE/ICE diagnostic connection. Part numbers are listed in the Parts Tech Manuals

The M1010 ambulance. They used the Duvac inverter to change to 12v. Major issues with that setup.

I'm watching OKC in their first NBA final so I can't get the diagrams out. I can help you with the wiring in the morning. You will need the diagram E-9 from the TM 9-2320-289-34 tech manual.

Your starter is draging because the rear battery isn't charging and the voltage has dropped. There isn't enough juice for the 24v starter.

Sounds like the fusible link between the GEN2 positive terminal and the 24v Positive Terminal Block. Have you downloaded the Tech Manuals and looked at the wiring diagrams in the appendix? Just checking... Where did you get the 30v reading? From the back of the Gen2?

The alternator really isn't producing 30volts. Each alternator produces around 14.7v in an ideal situation. The 14.7v (or less) fron the driverside alternator is fed to the ground terminal of the passenger alternator. The voltages combine to produce ~29.4v total. You can tell if the...