ok so did I miss something there? did you get it running again or just get fuel to it? focus man!
that battery isolator that's in there looks similar to one I had on my backhoe, well it doesn't look like it right now but it did a while back before it caught fire and spewed its contents in a blow torch like fashion that didn't want to extinguish very easily without a full extinguisher was used on it.....so I don't trust those things!
I'm not too worried at the moment, since it's not hooked up. But even if it was, and the engine was running, the truck only has a 60a alternator.
Still, relays are cheap and I will be replacing it with a proper continuous duty relay eventually.
Bit once I shift the solar and big batteries over to the Superior (in a year maybe), I'll be in the same situation I'm in with the van now - no real need for that second battery under the hood.
Requires more thought.
Anyway, keep up the good work!