Smart injection

[Richard L]

The level sensor is useful for not allowing the water drop below certain level, prevent air entering the system. Real pain to get it out again. (purging required).

Here is a quick drawing for the system wiring. since I don,;t know the specific ECU pin layout, I just use a box to represent the ECU.

[Kapt. Q]

Hi Richard,
That's fantastic, I should be able to follow that without trouble. The service and attention to detail you provide is something truly rare these days and I'm very much obliged!

I think my last post was a bit confusing when I read it back; I don't want to get rid of the tank sensor, I'm just wondering if it would be ok to put it in the side of the tank rather than the back?

I've been reading a lot of stuff on fitting tanks etc, and I have had many laughs at people complaining about space issues in their 1.5+ ton cars, lol! (mine is 720kg)

Cheers!

[Richard L]

The more time I spend now will save more time in the future.

I have changed the wiring a bit. The red wire of the grey harness will now go to the (+) of the fuel injector, making the distribution of the wires a bit simpler.

The tank level sensor can be put anywhere. Putting it in the back stops the "low level" from triggering during acceleration when the tank is low. The system will not trigger the failsafe if the "low level" trigger is only intermittent. However, it will trigger if the sensor is reading low for 20 seconds.

Look for a tall and thin tank if possible so sloshing is minimised. It also takes less space so you can pack your tooth brush in on long trips.

[Dust]

Originally Posted by Richard L

so you can pack your tooth brush in on long trips.

Funny man

[Kapt. Q]

Lol, the great thing is it forces you (or the Mrs ) to travel light!

The tank design has been finalised, it will be stainless steel and vented externally.



The sump on the side should help prevent surging. I'll put a fan in the enclosure, thanks to Howerton engineering for the inspiration there.
There will be a cover for the pump compartment.

All it's missing is a big Aquamist sticker

Should be ready in a few days.

Cheers!

[Richard L]

which is the back facing side?

[Kapt. Q]

Hi Richard,

You are mainly looking at the front facing side and the thinner passenger side in the picture, the back of the larger side (not completely visible in pic, only in back of pump compartment) is facing the rear of the vehicle. The bottom hole in the sump is the outlet, the hole above (100mm) is the level sensor. There is one baffle in the center of the main tank too that is not visible. I am hoping that with the level sensor being 125mm (approx) above the tank bottom, failsafe will activate before air ever enters system.
Overal dimensions are 465H x 325W x 122D. The pump enclosure section is 265H x 225W x 122D. Usable capacity is approx 9 liters before failsafe (leaving about 1.2L in the tank), should be enough for trips to Europe but there's always vodka if we run out!

Cheers!

Lucian

[Kapt. Q]

The back of the pump compartment is attatched to the inside of the tail gate, the tank part projects above the tailgate and would be visible from outside through the upper glass hatch if the glass was not heavily tinted . The whole arrangement will fold back when the lower tailgate is opened allowing easy filling and engine access.

So if you were outside the car and opened the lower tailgate the tank will swing down towards you and end up laying down with the cover for the pump enclosure facing up.

Hope that's at least vaugely clear, lol!

[Richard L]

Looks good so far. I am looking forward to the real thing. You are doing welding?

Tank sticker enroute.

[Kapt. Q]

Hi Richard,
I wish I had the equipment and practice! I did a lot of welding many years ago when I trained in diesel, hydraulic and general plant, and enjoyed the magic of making two things one but now leave it to the pros for better results, lol.
I did the design work though.

Cheers!