Fuel sending unit specs

[EricN]

Wondering if anyone knows that the resistance is of the fuel sending unit when empty and full. I want to find something close so that I can use it for the vegi tank with the stock fuel guage and when the solenoids shift over to vegi, so does the fuel reading.

[Adam]

I'd love to do this for my WVO setup. It turns out nice gauges are not as cheap as I thought. Let me know how it works out for you. Have you already got a VegTank selected?

[EricN]

I have it all drawn out in cad, I just need to slap the aluminum into the burning table and click start then bend up all the bits, weld and I am good to the tune of around 110 L (unless I screwed up the math). I have the vegi all done and wired other than the tanks and filler neck, plus the little return hose from the injector to the banjo bolt just showed up today so I need to change that. I have just been too busy with every thing else like the exhaust (moved to make room for the vegi tank), trailer hitch (also drawn up in cad if anyone wants some brackets cut), valve adjustment, thermostat, did the rear brakes today and rebuilt the wheel cylinders. My goal is to have the tanks done by the weekend and finally get to put plates on this thing and drive it. Since no one has an answer, I will try and jack the thing up sideways since it is almost empty and measure the resistance then make a few trips with a jerry can to fill up. Failing that, it sure is easy to access and remove it to do a sweep that way.

[Adam]

I have it all drawn out in cad, I just need to slap the aluminum into the burning table and click start then bend up all the bits, weld and I am good to the tune of around 110 L (unless I screwed up the math).

Wow, now that's some capacity. Where does the tank sit, in the spare tire spot? I would love to get something with that volume. Let me know how it goes.

[EricN]

3 tanks. 2 in the voids above the spare tire that also hang down on the right side when they can clear the tire, calculated volume is about 25-30L each. The third one is where the muffler used to be, calculated around 60L. My filler neck is coming up where the jack is supposed to be, otherwise I would have eliminated the 2 smaller tanks.

[Adam]

So it allows you to keep your spare underneath? Nice. Keep me posted on how it turns out. I'm very anxious to find a WVO tank solution that requires the least amount of repositioning without sacrificing capacity. Working around the spare would solve the problem of having to mount the spare in the tailgate or up top, and free up some money to rework the exhaust.

I found some details on the fuel sending unit: http://www.allproducts.com/manufacture9 ... ender.html

Fuel Level Sender - Fuel Gauge - MITSUBISHI DELICA Van 2.0(90~96)
Original Parts No.: MB434245.
With Sensor. Fuel Level Sender - Fuel Gauge - MITSUBISHI DELICA Van 2.0(90~96)(MB434245)
Ordering information:

* Minimum Order: Negotiable
* TEL: 886-3-4201946
* FAX: 886-3-4201996
* E-mail: taishing@taishing.com.tw, Antony@taishing.com.tw

[BCDelica]

Good info, but that doesn't look like what's in either if the Delica's tank.

[EricN]

BC Delica, have you seen inside the tanks? I am curious as to how the fuel transfers from 1 tank to the other as it is being used up. I figure there must be some sort of pump or switching solenoid in the front one judging by the size of wires going into it but other than that, I am stumped.
As for the fuel sending unit, it's range is 60ohm empty, 0 ohm full. Closest I have found is this http://store.summitracing.com/partdetai ... 4294925228+
Apparently a tube type is recomended over the normal float/arm type. Should be easy to modify a bit to change up to a 60-0.

[BCDelica]

Morning, the twin tanks are joined with a larger hose, ~1 1/4", near the top to fill them. Each tank has it own pickups and float, they just work as one tank. There is no solenoid or switching equipment for the diesel tanks. Fuel tank resistance with these rigs drive me nuts; an individual Deli tank has a resistance that can't operate a fuel gauge, my Jeep tanks float works but I have given up trying to match resistance so my WVO gauge works (maybe), on top of that I want my Jeep tank and rear diesel tank joined (easy) and will forget about a fuel gauge. Have been using the odometer and haven't run dry 'yet'.

I like that sender, it would just need a 10 ohms resistor for my gauge from Princess auto. Is there other depths of sender available?

Can't wait to see your finished WVO install.

Kev

[EricN]

Ok, thanks for that info, that changes things ALOT!! The Deli sensors are wired in series so if you unplug one, the gauge doesnt work. Which also changes the empty reading to 100 ohms, ( I measured using a resistor). So either the front sending unit has a different range than 70 ohms or it bottoms out or something.
As for that gauge, it has depths of 8.5" or 11". The only thing is, i suspect most aftermarket gauges to us the GM readings of 0 empty and 90 full, might be worth double checking. I might end up getting a GM one now and just installing it upside down in the bottom of the tank to get my fuel. I was also thinking of adding one of those little sight glasses you see on lawn mowers and stick that into the side of the tank somewhere but I am sure I can get the electrical gauge to work.