Yesterday I finally put in the blazer 25 gallon tank. I had previously put in a 20 gallon fuel cell with the assistance of a buddy the day prior to a Baja trip. Well, that tank failed at the welds and proved useless. This time it’s a factory Chevy tank and I took more care with the bracing.
I bought generic tank straps and hang those from all thread bolted into the frame rails. I re-used crossmember from the spare tire carrier and remounted it toward the bumper. Friend made a stainless cross member for the forward position. I ended up adding a third cross member for the middle to have something to snug up to that was more level (but still pitched a little toward the front bumper). I needed to pitch it downward a little to avoid the “level filling” issue I had with the first tank. It was a messy process trying to fill the previous tank! Lots of spill back, even when using leveling blocks in the rear.
Tank ready to go up.
Since it’s a standard gas tank the diameter of of the fill tube and fuel return are smaller than my diesel fill neck. In Mexico lots of the diesel pumps are only sized for semis so you need that larger fill neck. So I bought a 2” to 1.5” fill neck reducer and also made a little splice (pictured here) for the fuel return thingie.
I didn’t want to mess with fuel tank selectors or return lines to the engine (I am NOT a mechanic!) so I hooked the output of the new fuel tank to an inline diesel rated pump from jegs (30 bucks or so) and then ran the output of the pump to a tee in the main tank fuel fill line. It’s the same setup as I had with the fuel cell and it works awesome. I have a switch bank in the cab that turns the pump on. It’s nice to transfer fuel while you drive. You can just watch the gauge for the main tank go up and the extra tank go down while cruising on the freeway!
Now I have almost 55 gallons on board with my jerry can and at 15mpg (much better now that I have OD!) that’s… a long way. 800 miles or so.
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