I've dropped a tank half full. By myself. with a jack to act as a 2nd person, jack stands and some dunnage you'll be fine. I used my raptor to empty the tank from 1/4 when I did my sump and it took a while. Just run it as low as you can and then drop it, once you remove tank, remove sending unit and you can siphon it out- modify unit with draw straw or whatever your plan is and put tank back empty. it's pretty simple.

 

A valid point ....but if you can ensure the pressure reaching the Injector Pump has a maximum of 20 PSI at IDLE, and doesn't drop below 10 PSI at WOT ...it will work quite nicely. (I did this on one of my trucks when it wasn't convenient to do the in-tank mods ....and I deferred the in-tank work for many months ....BUT - I did monitor the pressure at the input of the IP to ensure it never was outside allowables. I also fed the power to the rail mounted pump via a oil pressure switch; the engine had to be running, oil pressure > 5 psi to get power to the rail pump.

 

Ok, here is the chain of events. 1. Put hose on the fitting out, 3/8 is perfect. 2. Used in tank pump to pump fuel into a clean and new 32 gallon garbage can in the bed, bypassed the relay to avoid bumping the starter a 100 times. 3. Dropped tank and modified basket. 4. installed tank, which getting the retaining ring back on was fun. 5. Syphon fuel back into the tank from the garbage can.

I now know what killed my vp, the lift pump started taking a dump after it got to a 1/4 tank. It was only pumping in spurts, don't know if it were a low fuel issue or the pump cannot sustain long runs. For the first 40 minutes it was solid but the last 20 were telling of why the fuel pressure was fluctuating.

Tomorrow, finish install of the raptor, new filter and going to get a Racor in the next few days.

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All done and have 15 at idle and draws down to 12 at WOT. I haven't hot the highway yet but will be on the road tomorrow. I have to say the pure flow AD folks were good and called right back yesterday when I wanted to make sure I had the pick up tube in right. Nice to have my truck back. Thanks everyone for your input.

 

Glad it went smooth, hopefully it's the last of the fuel system issues.

 

I hope so too. I just hope to get at least 100,000 miles off my rebuilt IP.