building an auxiliary tank
Moderator: BCDelica
- jessef
- Posts: 6459
- Joined: Tue Feb 26, 2008 1:27 pm
- Vehicle: JDM flavour of the month
- Location: Vancouver
- Location: Vancouver, BC
building an auxiliary tank
first crack I've had at it. Turned out really well.
Made a pair. One for me and one for David.
Did it smaller than norm to fit some more gear underneath. 45L It's 27" long , 14" wide, 7" high which tucks it up nicely so it doesn't stick out the bottom of the frame.
Used .120 sheet metal and two piece bent up welded together.
Cost :
$170 for metal/bending
$25 bungs
$85 fittings/pickup
$100 tank clean/lining
$80 sandblast/painting
$40 misc driving/welding,etc...
Total : $500 / $250 ea
We were going to spend at the very least that amount for an aluminum tank but it would have not fit as well.
Checked them for water/air leaks and now just have to wait to get them cleaned, lined and painted.
Made a pair. One for me and one for David.
Did it smaller than norm to fit some more gear underneath. 45L It's 27" long , 14" wide, 7" high which tucks it up nicely so it doesn't stick out the bottom of the frame.
Used .120 sheet metal and two piece bent up welded together.
Cost :
$170 for metal/bending
$25 bungs
$85 fittings/pickup
$100 tank clean/lining
$80 sandblast/painting
$40 misc driving/welding,etc...
Total : $500 / $250 ea
We were going to spend at the very least that amount for an aluminum tank but it would have not fit as well.
Checked them for water/air leaks and now just have to wait to get them cleaned, lined and painted.
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- Kuan
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Re: building an auxiliary tank
looks great! I'm jealous...
Don't use brass fittings though - they will react with veg. oil.
Don't use brass fittings though - they will react with veg. oil.

- jessef
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- Location: Vancouver, BC
Re: building an auxiliary tank
I'll need to find a place for non-brass fittings. Thnx for the head's up
progress
Sandblasted and then painted with Chassis Black POR15.
progress
Sandblasted and then painted with Chassis Black POR15.
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- dfnder
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Re: building an auxiliary tank
How do you line them?
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Re: building an auxiliary tank
I bought a few stainless steel barb fittings at New Line in Burnaby for our tank.jfarsang wrote:I'll need to find a place for non-brass fittings.
Just checked the Western Marine catalogue. They have quite a few aluminum (from EVM) and stainless fittings too.
Another good place is http://www.fairviewfittings.com
- jessef
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- Location: Vancouver, BC
Re: building an auxiliary tank
This tank is for diesel so the brass fittings will do.
Getting lined by renew tanks in aldergrove on 264th
Getting lined by renew tanks in aldergrove on 264th
- thedjjack
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Re: building an auxiliary tank
Nice work! Looks great.
Only thing I would do is add a drain in the bottom corner on the side (so it does not get taken out off-road).
Only thing I would do is add a drain in the bottom corner on the side (so it does not get taken out off-road).
- delicat
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- Location: New Westminster, BC
Re: building an auxiliary tank
Looks great, can't wait to move the my old one down from the roof!
I'm pretty sure there's already a drain plug on the bottom rear corner as we spoke about it during initial design (check picture where tank is supported by jack. To protect we simply add a 1/4" steel ring around the plug...)
Cheers
Mr. D
I'm pretty sure there's already a drain plug on the bottom rear corner as we spoke about it during initial design (check picture where tank is supported by jack. To protect we simply add a 1/4" steel ring around the plug...)
Cheers
Mr. D
'93 Nissan Patrol
'94 Mitsubishi Pajero

"If it ain't broken, modify it!"
'94 Mitsubishi Pajero

"If it ain't broken, modify it!"
- thedjjack
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Re: building an auxiliary tank
Then it looks perfect 

- jessef
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- Location: Vancouver, BC
Re: building an auxiliary tank
Yes. Yes it does 

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Re: building an auxiliary tank
What a great tank! Nice work, as always. It is a dang good idea to get it lined. Every steel tank I have ever seen used unlined with WVO started to form the 'skin' of oxidized oil that can be a PITA to get rid of...
- jessef
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Re: building an auxiliary tank
Agreed. 

- DoubleMonk
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Re: building an auxiliary tank
Can you enlighten me on lining a tank? I gathered it's for oxidization. What would a liner consist of? Materials? Method? Sprayed application? Links?
I think Mr. Robot is coming with a little tank in the trunk. A new tank is more likely the first addition to the unit.
I think Mr. Robot is coming with a little tank in the trunk. A new tank is more likely the first addition to the unit.

- EnviroImports.com
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Re: building an auxiliary tank
nice work Jessie, are you going to put any sort of a skid plate on it to cut down long term wear and tear from rocks,gravel and things like that? small hole steel mesh would be ideal as rocks would beat it up over time rather than your tank , that could make the tank last longer than the vehicle and you can easily replace it also you can look from time to time to make sure a small rock or road debri does not wedge between the tank and the protective cover and slowly wear a hole in the wvo tank.
I picked up a second saddle tank for my pick up trucks wvo system and was looking at the plastic protective plate attached to the bottom and it has a few small gravel rocks in it that have allready worn into the main body of the tank, so I will have to fill it with water and weld a few small doubler plates over those areas, my mega tank in the back of the chev has BIG dents in the end from when the tank was mounted to a highway long hauling truck, its 1/4 thick alum on that end so its not an issue and in the bed of the truck its protected, but I can see rocks beating the bottom of your tank .
Just a thought
Noel

I picked up a second saddle tank for my pick up trucks wvo system and was looking at the plastic protective plate attached to the bottom and it has a few small gravel rocks in it that have allready worn into the main body of the tank, so I will have to fill it with water and weld a few small doubler plates over those areas, my mega tank in the back of the chev has BIG dents in the end from when the tank was mounted to a highway long hauling truck, its 1/4 thick alum on that end so its not an issue and in the bed of the truck its protected, but I can see rocks beating the bottom of your tank .

Just a thought
Noel
- jessef
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- Location: Vancouver, BC
Re: building an auxiliary tank
3/8" thick steel plate tank. I don't think it will get hurt
Didn't care about weight because the Patrol is a beast and you can't feel an extra hundred pounds of metal and diesel under the floor.

Didn't care about weight because the Patrol is a beast and you can't feel an extra hundred pounds of metal and diesel under the floor.