Guilty as charged, Clive! How've ya been?
Did the sending unit swap over in the 33 gallon tank?
Yes, but.... I use a "modified" stock float sending unit. I really wish I knew where I put the pics of my modded float/sender deal. I can't find them, for whatever reason....
At one time, I had big plans for my truck that were gonna require big amounts of fuel. So, I used a 5/8" aluminum fuel line for the pick up tube inside the tank. It has a screen clamped over the end of it to filter out rocks & some fungus. I lengthened the stock float arm, but can't recall how much. I cut the stock float arm in half, slipped a piece of steel tubing with the same i.d. as the o.d. of the float arm over both halves of the float's arm, and gas welded everything back together, slightly longer. I wasn't real scientific about it...... :lookaround: I simply hose-clamped the stock sending setup to my aluminum pick up tube. My fuel gauge now "lies" to me: when it says I'm on empty, I still have around 4-5 gallons left sloshing around in the bottom of the tank. :thumbsup: The sending unit can be adjusted/slid up & down on the aluminum pickup tube, to make it more "accurate", but I'm lazy, and actually like having a small amount of "reserve", ya know? Anyway, I "scrapped" my plans for needing "Big Fuel", and went back to racing mx again. That's where my "discretionary income" goes now..... I guess I'm a little "old", technically, for that sport, but I still love it, and have a lotta fun with either the old guys I race with/against, or the younger crowd I practice with. Helps having a moto track only 6 miles from my house.....
What kind of filler neck did you use?
A modified stock one. I put a barbed hose fitting at the top of the fuel filler neck, and instead of a rollover valve, used a plastic plumbing elbow, with a hose barbed fitting on that. Ran either 1/2" or 5/8" hose up fron that elbow to the fitting in the stock filler neck, for a vent when filling. It works better than the stock Ford setup, but not as good as what I've read about Transferflow setup.
What about the fuel pickup?
I hope I kinda answered that above. Again, if I can find some pics, I'll sure try to post them. That would help a lot, as I'm not real good at the verbal description thing. They may possibly be hosted at thedieselstop.com, but I couldn't figure out how to log in there under my old username (Big Fig).
I wanna keep the selector valve and dual tanks if possible. That'd be nearly 50 gallons total capacity w/o anything in the bed (except the spare). I really want to spend $200 when I fill up.... :doh:
More capacity will definitely do that for ya, CB! :jawdrop: I spent $111 at the pump Friday, for only 29 gallons!!! Felt like I'd been "violated"......
Anyway, I hope this helps you some. I'll try to answer questions as best as i'm able. In the past, I'd have waited until I ran outta fuel, pulled the tank, pulled the sending unit out, and took photos. I'm much lazier now..... :shrug: And I hope I haven't omitted any "critical info" here. It's been several years since I did all this, and don't remember every last detail. I do recall that you want to "over engineer" your mounts for the bigger tank. I use a Bronco skid plate to support the bottom of my tank. But the tank is so tall, the skid plate won't reach to the frame like it does in the Bronco application. So at each corner of the skid plate, I have some fabbed up/welded deals that connects the skid plate to the frame, while keeping the tank captive at the bottom with the skid plate, and with the straps on top. Again, I hope this makes sense. Maybe I made it harder than it actually is; I dunno. I used 4 lengths of 3/8" all-thread & nuts as my "extenders: from the skid plate-to-frame mounts at first. After a couple of years, and much flexing & stress when the tank was full, going over bumpy roads & etc., the all thread broke one morning as I drove to work. For about 25 yards, I was literally "pulling" my tank along behind me by the supply & return hoses, as the full tank skidded along on the Bronco skid plate. My "new" (well they're probably over 5 years old now....) welded mounts/extender/gizzies haven't done that, saving me much embarassment.......
Side Note: I really like the sump setup Not enough Smoke has shown above my post here.... Is that a steel tank?
Jimmie
