I think the one fuel gauge probably does 2 tanks. Tach is fed from the alternator from memory
I was fussing with switches and trying to sort the AC this afternoon and figured out the fuel tanks. It's as you say, my one fuel gauge covers both tanks... just depends what tank I have selected.
Classic 25+ year old LCs.
They all become projects... if/ when you want them to be.
Or you do “patina worldview”//. A la
@wngrog —always spend money on the mechanicals, but everything else “immaterial” can be like you are driving in the Central American jungles on a drug run to the remote airfield to deliver 700 kilos of coke. You can make due with “gaps”.
Solid.
Goal for this one is to be sharp and classic looking on the outside, tip-top mechanically, and pure use-and-abuse function on the interior. This is our new family camping/exploring truck to replace the 80... we'll be hauling our stuff and my kids are still young and subject to entering the car while still wet, sandy, or otherwise a mess.
How do you plan to register a gasoline-powered vehicle without emissions equipment in Phoenix?
Um... yeah... I'd actually considered this for my FJ40. I'm glad you reminded me about this issue. 1HZ swap???
In all seriousness, thanks for bringing this up. It looks like I'll be able to get "classic car" insurance for this truck so as to be exempt. This is the same thing I'll have to do with my 40.
Did you find that valve switch?
That water will be coming in around the windscreen. There are some rubber plugs in the floor that can be removed until fixed. Is that moisture behind the seats as well?
I fixed the leak in mine merely by cleaning under the window seal with window in place. There was some accumulated dirt in there. I think mine went above hood depth in a muddy river crossing at some time in its life
I've got the two valve switches (the photo of the two valve switches was from my truck). So I'm good to go.
The moisture wasn't water... it doesn't rain in these parts much.

It was spilled brake fluid I believe. Whatever it was had actually caused some of the black tar sound deadener that sits in the footwell to just peel right off. Although I suppose it was water at some point that rusted the front passenger area a bit. I'll be getting a new windshield and a new seal installed.
As mentioned above I sorted the fuel tanks while trying to figure out the AC.
The switch with a "I" and "II" located in the same slot as my climate controls (circled in green) is actually the fuel tank switch. When you select 1 or 2 you are running from the respective tank. When you make the selection the single fuel gauge in my cluster changes to reflect that tanks status. I've verified this when I filled up with gas this evening. Kinda funny the Roman Numerals hand painted on a switch in an Arab country.
The stock AC switch (circled in blue) controls the main AC in the console. Blows nice and cold. The AC in the rear of the truck is controlled by the little knob with the "IAMA" label. It also blows nice and cold. I may try to keep the rear AC in some way... dual AC in a Troopy sure seems a good idea.
I've got no clue what the red switches do... there are no foglights on this truck, at least not anymore. Both switches are wired in. Need to trace and figure out what.