Aux/Long Range Fuel tank designs

[cruiser_guy]

What is the capacity of an OEM diesel 60's fuel tank? Thanks.

Diesel or gas '60's use the same tank. Only the suction fitting changes as some have a return and some don't. 90 liters is the specified capacity.

 

[Volcano cruiser]

Diesel or gas '60's use the same tank. Only the suction fitting changes as some have a return and some don't. 90 liters is the specified capacity.

cruiserguy thanks, good to hear from you are you back in Canada or still down this way in Guat? Ok, if my high school math doesn't fail me 90 liters is round about 23 gallons U.S. Seems like that is about 5 gallons more than the 40 tank. 23 (60 tank)+18 (40 tank)=51 gallons. At the 40 series diesel average reported mpg of 15 - 20 mpg, that would be a capacity of between 765 -1020 miles (both tanks). Not to shabby. In terms of load balancing between the tanks if you could find room opposite the OEM tank on the driver's sides it would seem that you'd be ok. If it could be done then I'd plumb the aux tank to a 80 series Y filler neck at the OEM spot and use a fuel solenoid to control both tanks. Use the stock fuel pump and gauge. I think that the same solenoid setup allows you to wire the senders from the both tanks to it and then to the fuel gauge, so when you flip the switch the gauge on your cluster goes from taking its reading from the main tank sender to reading the aux tank sender.
Do you guys think using a 60 tank as described on a 40 as an aux tank would be doable?
Thanks.

 

[cruiser_guy]

cruiserguy thanks, good to hear from you are you back in Canada or still down this way in Guat?

We're back down in Guatemala after 25,000kms over 2 months on the trip up to Canada and back down again. Hoping to head off to my buddy in Honduras in the next month or two and maybe we can meet up since it didn't work last time.

 

[Volcano cruiser]

We're back down in Guatemala after 25,000kms over 2 months on the trip up to Canada and back down again. Hoping to head off to my buddy in Honduras in the next month or two and maybe we can meet up since it didn't work last time.

Sounds great. I'd love to have you come on by, grab some hot pizza and cold beer and take a look at my rig. Progress is going slow but going. Things ought to be farther along in September. Just let me know when you plan to make your run.

 

[joshoisasleep]

Josh,
Hey, how are you and where are you these days? I haven't stopped thinking about this topic and in looking at the options I totally forgot about 60 tanks as aux tanks. What is the capacity of an OEM diesel 60's fuel tank? Thanks.

Hey thanks for checking that I'm alive (a good idea if I haven't posted on mud in a few days). I've been in cruiser MECCA... lost in the Bolivian salt flats and deserts for 5 days (sometimes for real). Sorry kind of off topic, except that I was really wishing for a second tank at several points... I had 5 20L jerry cans and my stock tank for 5 days through the middle of nowhere to Chile... it was BARELY enough and I JUST made it to the gas station on the other side.

Cruiser_guy thanks for the clarification... I'd always thought the stock was 80, but 90 makes more sense since my fuel needle is nowhere near the bottom when I put 75L in!

going off topic again because I'm so stoked about it (I only just got out yesterday)... I don't know if anyone's ever been to the Bolivian salt flats near Uyuni, EVERY car is a beefed up landcruiser... literally! They carry 8 people, a 20lb propane tank, around 240L of fuel, and everything they need for 3-5 day tours on the remote salt flats. 60's, 80's... maybe even a few 100's. I'm going to have to start a thread about it here...


Also, I should be back up in central america around october, if anyone's around...

 

[cruiser_guy]

Also, I should be back up in central america around october, if anyone's around...

Make sure you check in when you're in Guatemala City. I will be there.

 

[Volcano cruiser]

Also, I should be back up in central america around october, if anyone's around...

Josh,
I'll be here in San Salvador then if you are planning to pass through. Just let me know when.

 

[sandcruiser]

me too.
Robyn and Raenelle of Newcruiser.ca just left the house after spending a couple of days with us.
rchalmers3 and his lovely wife Heidi were here last month.
That wanderlust itch is starting to really kick in!

Point being- I can't bail on work and mortgage right now, so I'll almost certainly be around in October. If you guys care to stay a night or more, we've got a spare bedroom for you, and a pool. The only issue would have been a cat (alergic wife, enthusiastic dog), but I'm sorry to hear that yours is no longer with you.

My cell is 83 76 62 78, once you hit CR.

Safe travels

 

[joshoisasleep]

Sweet thanks guys hopefully we'll be dropping in on you all... there's nothing like hanging out with some other cruiser nuts after spending a year in a car with a girl who can't stand me talking about landcruisers ANY more!! hehe. Our schedule of course is totally random and depends on fate, luck, and the landcruiser gods.

 

[doug720]

On the Aux. tank next to the driveshaft, does your exhaust run to the outside of the frame rails? If yes, which side did you run it? Is your L/C a factory diesel?

Thanks

Doug

 

[98lux]

http://www.4wdsystems.com.au/html/tanks.htm

From $595 aus

 

[moooooooo]

Brown Davis Long Range Fuel Tanks

Brown Davis make fuel tanks for the USA military. And for us 4wd'ers as well.
I lent them my LC100 so they could make custom skid plates for an IFS LC100 V8....as no one had bothered. My skid plates are awesome and perform well.
These skid plates are now part of their suite of skid plates.

You should check the link above. And no, i dont work for them, i work in a financial institution...this week
cheers
peter

 

[soenke]

there is is two ways to mount the tanks

-as shown by Albin and BlueHZT60 under the body...

-or frame mounted.
Then you have to be careful to fix it in triangular points to avoid tension...

here our framemounted aluminum rear tank

and a middle tank. Stock gauge used...

 

[ducktapeguy]

Is everyone using a separate filler neck from the main tank? Does anyone have an idea where to find a stand alone dual filler neck?

 

[soenke]

Is everyone using a separate filler neck from the main tank? Does anyone have an idea where to find a stand alone dual filler neck?

yes, from Toyota (Afrika spec.) for J80 and J90 replacing the normal filler

and J75/78 to fill an additional middle tank from Untitled Document
(Katalog download)

 

[Volcano cruiser]

Is everyone using a separate filler neck from the main tank? Does anyone have an idea where to find a stand alone dual filler neck?

Yes that is actually my idea to avoid cutting holes in my rig. an OEM dual filler neck is made by Toyota for the 80 series. There are guys who have used it on 40's. If you do a search under dual filler neck the threads should pop up with a ton of pics on the install. Apparently, depending on the position of the aux tank and how you do the plumbing from the aux tank to the dual neck there are some fitment issues which are covered in the threads. That is my plan anyway assuming I can find an aux tank that will fit under the floorboards under the drivers seat of my 40 for cheap maybe something like soenke's middle tank.

 

[ducktapeguy]

I've seen the dual fillers for the 80's in the tech writeups, but after looking at the setup in the 40 I didn't think it would have been easy to fit it in. There is one person I talked to who made a custom Y pipe for the filler, no valve to switch between the two tanks, I think he just angled the hose differently when filling. I've been meaning to get some pictures of it.

I wonder if you could just fit an early 40's fuel tank and just relocate the filler input to the opposite side?

 

[soenke]

we have had the Y filler from tourfactory mentioned before in our HZJ78 for stock and middle tank
and we have a Y filler in our J4 cab to fill the tanks under the seats (they are for water, but with diesel it would be just the same). It ´s nothing special about it, just a Y . More importent is to have sufficient breathers, at least 10mm !!

 

[ntsqd]

My mate has one on his HJ61 mounted there and he has another mounted next to the tailshaft for a total of about 250L. Both made from steel. Sorry don't have any more details on it.

We make boats at work and we build our own fuel tanks. If making it from alloy make sure you get the correct grade alloy. A lot of alloys will get micro cracks in it when folded. I can't remember off the top of my head what grade the boys use ( I don't actually make the tanks). Make sure you leave an expansion void in the top of the tank above the maximum fill capacity to allow for hot days. The breathers need to be located properly too so it won't be a bitch to fill. Try to keep the filler and breather tubes from having low points in it too for ease of filling. Don't forget a drain bung in the bottom too.

5052 is the common aluminum alloy used in the States for fuel tanks. The key is to not use one of the Heat Treatable alloys like the ubiquitous 6061 as those will crack when you try to bend it.
In the U.S. it comes down to the two common choices, 3003 or 5052, and 5052 is the stronger of those two alloys.

 

[Volcano cruiser]

5052 is the common aluminum alloy used in the States for fuel tanks. The key is to not use one of the Heat Treatable alloys like the ubiquitous 6061 as those will crack when you try to bend it.
In the U.S. it comes down to the two common choices, 3003 or 5052, and 5052 is the stronger of those two alloys.

Is there anything wrong with steel? I get the weight savings argument but the likihood that I'll find a shop that uses alloy to make a tank for me is slim here in Central America. The hall mark of this place is they will make whatever you want but it will, big, overbuilt and strudy. I'm pretty sure that we can get a shop to do a couple of 25 gallon steel tanks for me though.