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Transfer Flow Auxiliary Fuel Tank

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This is a followup report on the Transfer Flow Express-UFS 70 gallon tank I recently purchased and installed in my Dodge. It is the same tank advertised in the TDR magazine.



I filled my main tank and the auxiliary tank last week before starting out on a weekend trip pulling my travel trailer. Filling it was convenient and easy but painful. That was the first time I'd spent $120 on diesel fuel at one stop. The tank fills quickly with no restrictions or problems with splash back shutting off the fuel fill nozzle. There were no leaks or other difficulties.



The tank's transfer system works great. When the fuel level in the main tank decreases to 3/8 full, the mini-computer turns on the pump, transfers fuel until the main tank reaches 3/4 full, and shuts off. I can't hear the transfer pump run when I'm driving but if I stop I can hear it.



It's a little strange to glance at the fuel gauge while pulling a trailer at highway speed and observe it is below 1/2 full and a little later glance down again and it is 3/4 full.



For anyone contemplating an auxiliary tank purchase, I am pleased with the Transfer Flow and recommend it to anyone.



Harvey
 
TBoneMan:



Installation was surprisingly easy.



The first step was removing the camper shell. It would not have been necessary but it was originally installed with clamps rather than bolts through the top of the bed. The camper shell had "walked" and damaged the gasket between shell and bed top so it needed to be removed to replace the gasket. I visited the dealer who sold it to me and he was happy to lift it off and store it for a couple days until I installed the tank. It was a little easier to install the tank with the shell removed.



The next chore was removing the MOPAR bed liner. I was afraid that the full weight of the fuel tank would eventually crush the standing ribs across the floor of the bed liner so I removed it and cut out a rectangle the size of the fuel tank bottom then reinstalled it.



The actual tank installation was simple. Set it in place, drill four holes through the bed floor to match the holes in the angle iron flanges across each end of the tank. Remove it again and install double stick tape ribs under it, and bolt it in place. The tank is mounted very securely.



Measure and cut holes with a hole saw in the side of the inner bed near the left front with a hole saw for the hoses and wiring to pass through. This should be done before the tank is set in place and bolted down. Rubber grommets are provided to protect fuel hose, vent line, and wiring harness where they pass through the opening in the bedside.



Cut and remove a one inch section of rubber vent tube on the OEM fuel neck vent, insert the "T" actually "Y" shaped adapter, route and cut the hoses, install the clamps.



Test fit the rubber fill neck against the camper shell, cut out an opening, and install the bezel, fill neck, and hose.



Run the wiring harness along the frame, tap into the OEM fuel gauge sender wire, and route a wire up to the fuse panel to tap off 12 volt power for the computer and pump.



Transfer Flow provided all major and minor parts, fittings, grommets, wiring, etc as well as excellent instructions that even I could follow.



I installed a Painless Wiring Kit accessory fuse block from Geno's to provide power to the tank as well as the CB radio, fast idle kit, and other accessories.



John: The fuel fill neck is approximately 8" above side rail. There is some flexibility because the fill neck is attached with a large diameter rubber hose which can be cut to desired length. See the photo Bill Stockard attached to my earlier post on the same forum.



Harvey
 
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Didn't notice you had a cap on your truck. I was curious how far above the rail the filler tube on the tank itself came with the fuel cap on. Doesn't sound like the install is real difficult though.
 
John:



Sorry, I guess I misunderstood your question the first time.



Just the basic tank installed in an open pickup without the camper shell fillneck kit I used, I think the fillneck with fuel cap installed would probably be approximiately 4" to 6" above the bed top. The top of the auxiliary fuel tank, not the fillneck, is exactly the same height as the top of the bed .



http://www.transferflow.com is an excellent website. After clicking on "Contact Us" you can send them a technical question and I think you'll get prompt answers.



Harvey
 
Originally posted by HBarlow

John:



I think the fillneck with fuel cap installed would probably be approximiately 4" to 6" above the bed top.



Thanks for the info, when it comes time looks like I'll be in the market for the 50 gal. across the bed tank then.



http://www.transferflow.com is an excellent website. After clicking on "Contact Us" you can send them a technical question and I think you'll get prompt answers.



Harvey



I did send them an email two days ago. Am still waiting for a response. :(
 
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