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  • RDS Excursion Tank

    Hello, I have had my 30 gallon tank in for about 4000 miles. Since installation I have been loosing prime on the tank at anything below 1/2 full. When leaving a street light the green light will go out for 20-30 seconds, then come back on. This gets progressively worse as the level goes down to the point where even cruising at a constant speed the light will go out. I I have been able to draw the tank to almost empty on the Hwy but it is impossible in town. I am using lots of diesel when it gets low and i just hate to see the light out. I have changed the filter and checked the pre-filter, When the tank is full The Light wont even blink with the chip turned up. Anyone else have the same problem or any ideas on a fix? Thanks-
    Y2K Excursion 4X4 limited 7.3, 6" lift, 35" Rubbers, Jonathan Tuned, Single Shots, 38R, DI Up-Pipes, CoolingMist Vari-Cool Water/Meth Injection, Aftermarket Intake, 5 Isspro Gauges, Vegistroke V3, 30 Gal Frame Mounted Tank, GOT GREASE?


    veggiegarage.com authorized installer

  • #2
    Russel, I'm not too familiar with the Ex tank (since I don't own one), but how long is the pickup tube on those units? Sounds like the tube just isn't long enough to stay submerged in the oil. You might consider adding some tubing to the end of the pickup line so that tube lays on the bottom of the tank.

    My 60 gallon toolbox tank does this as well occasionally, and I know my pickup isn't quite long enough to reach the bottom.
    Greasin & Grinin
    Vegi oil powered since Aug 08
    2006 F-250 PSD - CC, Lariat, 4X4 - Vegistroke converted 1/27/13!!
    2008 F-250 PSD - CC, Lariat, 4X4 - Sold
    2005 F-250 PSD - CC, Lariat, 4X4 - Sold

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    • #3
      Yes, this happens to me now. It only started with the new 65psi switch. I used to have a 55psi switch that was more forgiving. I too must keep my tank over 1/2. My tank is only 20 gal and is behind third seat.

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      • #4
        My tank is a 36 gallon RDS behind third row,I have run to empty on several occations in the back country of Canada.This has been the best WVO tank i've owned(I have had a few).Perhaps air is the issue,I vented mine up out across, and then down HOH lines thus eliminating pockets.I have 15,000 miles on this kit in 9 months,only thing that needs tending too,is filter.What is the shape of your tanks?,could this not be a good set-up for extra pressure?............good luck guys.........greasy
        2000 7.3X V3 So much fun,so little time,Support small Oil,burn WVO,Free and greasy down the road I go!!!!!!!!!!completely self sufficient and proud of it. (Wood furnace.....X.......solar pontoon....solarsheat twins this summer.....I don't Know much.......I'm just a hillbilly with too many guns..............

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        • #5
          Good ideas guys, I wish I would have looked down in the pickup tube before installation. There is no way to check it while mounted under the truck so... out it comes.
          Y2K Excursion 4X4 limited 7.3, 6" lift, 35" Rubbers, Jonathan Tuned, Single Shots, 38R, DI Up-Pipes, CoolingMist Vari-Cool Water/Meth Injection, Aftermarket Intake, 5 Isspro Gauges, Vegistroke V3, 30 Gal Frame Mounted Tank, GOT GREASE?


          veggiegarage.com authorized installer

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          • #6
            No problem Russell, hope it helps.

            Kind of a bummer that you have to drop the tank to check that, but I never considered that the tank is mounted up under the truck on an Ex. I guess I just get used to the luxury of looking over in the bed...lol.

            Have you ever considered cutting an access door through the floor of the truck? I'm not sure if it'd even be possible due to the mounting location (or if you'd want to cut up the truck), but I've seen folks do this before on cars when replacing the fuel pump. Rather than drain and drop the tank, just carefully cut out a piece of the floor and make an access panel for the future.

            Might save you some time and aggravation next time you have to check some connections on the tank.

            Good luck!
            Greasin & Grinin
            Vegi oil powered since Aug 08
            2006 F-250 PSD - CC, Lariat, 4X4 - Vegistroke converted 1/27/13!!
            2008 F-250 PSD - CC, Lariat, 4X4 - Sold
            2005 F-250 PSD - CC, Lariat, 4X4 - Sold

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            • #7
              go to salvage yard cut out panel on X bring home trim to spec,cut circle (Holesaw) big enough to stick hand and tools threw.Then use salvaged steel as access hatch.............done that on a few rigs.........not the X........yet.........greasy
              2000 7.3X V3 So much fun,so little time,Support small Oil,burn WVO,Free and greasy down the road I go!!!!!!!!!!completely self sufficient and proud of it. (Wood furnace.....X.......solar pontoon....solarsheat twins this summer.....I don't Know much.......I'm just a hillbilly with too many guns..............

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              • #8
                Originally posted by greasyX View Post
                go to salvage yard cut out panel on X bring home trim to spec,cut circle (Holesaw) big enough to stick hand and tools threw.Then use salvaged steel as access hatch.............done that on a few rigs.........not the X........yet.........greasy

                Yep, there's your ticket Russell. Sounds like that would work good for you. Sure would save a lot of time and manual labor. I bet those tank with even just a little bit of oil would be hard and akward to handle.
                Greasin & Grinin
                Vegi oil powered since Aug 08
                2006 F-250 PSD - CC, Lariat, 4X4 - Vegistroke converted 1/27/13!!
                2008 F-250 PSD - CC, Lariat, 4X4 - Sold
                2005 F-250 PSD - CC, Lariat, 4X4 - Sold

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                • #9
                  That could work depending on where the pickup happens to land on the inside. Hope there isn't any structure in the way. Is It possible since the pickup is right in the front of the tank that the fuel is running or sloshing toward the back of the tank under acceleration. I know there are baffles in it but too big of holes in it.
                  Y2K Excursion 4X4 limited 7.3, 6" lift, 35" Rubbers, Jonathan Tuned, Single Shots, 38R, DI Up-Pipes, CoolingMist Vari-Cool Water/Meth Injection, Aftermarket Intake, 5 Isspro Gauges, Vegistroke V3, 30 Gal Frame Mounted Tank, GOT GREASE?


                  veggiegarage.com authorized installer

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                  • #10
                    Originally posted by [email protected] View Post
                    That could work depending on where the pickup happens to land on the inside. Hope there isn't any structure in the way. Is It possible since the pickup is right in the front of the tank that the fuel is running or sloshing toward the back of the tank under acceleration. I know there are baffles in it but too big of holes in it.

                    I think that's very possible. My tank is the 60 gallon toolbox style from RDS. Once I get around 3/8-1/4 of a tank, it's not uncommon for all the fuel in the tank to slosh to the passenger side on a hard left turn and the system will loose pressure. You could be experiencing the same thing - just in a straight line rather than curves.

                    Kind of frustrating at times, but overall, it's not that big of a deal I suppose.
                    Greasin & Grinin
                    Vegi oil powered since Aug 08
                    2006 F-250 PSD - CC, Lariat, 4X4 - Vegistroke converted 1/27/13!!
                    2008 F-250 PSD - CC, Lariat, 4X4 - Sold
                    2005 F-250 PSD - CC, Lariat, 4X4 - Sold

                    Comment


                    • #11
                      Sound good to me- Ill let everyone know the outcome when I get back from Virginia, and have a chance to pull it. Thanks for the help.
                      Y2K Excursion 4X4 limited 7.3, 6" lift, 35" Rubbers, Jonathan Tuned, Single Shots, 38R, DI Up-Pipes, CoolingMist Vari-Cool Water/Meth Injection, Aftermarket Intake, 5 Isspro Gauges, Vegistroke V3, 30 Gal Frame Mounted Tank, GOT GREASE?


                      veggiegarage.com authorized installer

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                      • #12
                        Originally posted by [email protected] View Post
                        Sound good to me- Ill let everyone know the outcome when I get back from Virginia, and have a chance to pull it. Thanks for the help.
                        No problem man...keep us posted.

                        Good luck!
                        Greasin & Grinin
                        Vegi oil powered since Aug 08
                        2006 F-250 PSD - CC, Lariat, 4X4 - Vegistroke converted 1/27/13!!
                        2008 F-250 PSD - CC, Lariat, 4X4 - Sold
                        2005 F-250 PSD - CC, Lariat, 4X4 - Sold

                        Comment


                        • #13
                          I have the 40 gal ex tank installed. If I run below 1/2 and get on it from a stop or accelerate up steep hills, the light goes out. I just need to do more road trips. Yes it is frustrating to see the light go out. If I designed the tank, I would have put the pickup in the back of the tank where all the oil goes when I hit the pedal on the right. Or figured out a way to build a low spot in the tank where the pickup is....... this way you would have to be really empty or upside down.
                          2002 7.3 Excursion Limited V3 w/40 gal RDS Tank, +50 gal or 100 gal aux cargo tank,
                          AFE Magnum Flow Air Intake, 4" Turbo back Diamondeye exhaust,
                          6.0 Tranny cooler upgrade, Edge Evo2 Gryphon, V & Modified B Code leaf suspension
                          BTS Transmission W/ 1.0 exhaust housing,Snow water/meth injection.Riffraff Engine Rebuild(kit) @315k .30 over pistons, CNC Fab HPOP, 406injectors.com 160cc single shots.

                          2002 F350 2WD CCLB 7.3 Bone Stock "Rusty"

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                          • #14
                            Originally posted by billman View Post
                            I have the 40 gal ex tank installed. If I run below 1/2 and get on it from a stop or accelerate up steep hills, the light goes out. I just need to do more road trips. Yes it is frustrating to see the light go out. If I designed the tank, I would have put the pickup in the back of the tank where all the oil goes when I hit the pedal on the right. Or figured out a way to build a low spot in the tank where the pickup is....... this way you would have to be really empty or upside down.
                            I hear you! I really only have a 15 gallon tank unless I am on the highway. Then maybe I can get it to 1/4 before I am using lots of diesel. Now my fuel sender is reading wrong at 3/4 full on the gauge it started spewing out the fill. I cant say im happy with this part of the conversion from the fill in the frame, mounting tabs that don't line up, sucking air with 20 gallons left, and now the sender.
                            Y2K Excursion 4X4 limited 7.3, 6" lift, 35" Rubbers, Jonathan Tuned, Single Shots, 38R, DI Up-Pipes, CoolingMist Vari-Cool Water/Meth Injection, Aftermarket Intake, 5 Isspro Gauges, Vegistroke V3, 30 Gal Frame Mounted Tank, GOT GREASE?


                            veggiegarage.com authorized installer

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                            • #15
                              Russel-

                              empty that sucker and do it right.

                              I can get the targon tubing... lengthen the hose so it sits on the floor of the tank in the back...

                              Then I'll get you the specs on the sender I use. And you can wire it into the factory gauge with a switch.

                              You'll be much happier and also add room for another gauge :-)
                              2005 6.0l X
                              V3 running 8/6/08
                              40gal frame mounted tank

                              Live by the grease, die by the grease

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