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e-van
Joined: Sun Aug 14, 2011 11:45 pm Posts: 16 Location: Kununurra WA
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Posted: Mon Sep 26, 2011 9:16 am |
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i have just put together my air tank for my jimny!! i still need to mount the tank (it fits in where the wheel spanner and jack lives.
i decided to use fire extinguisher bottles because
1 they fit in the right place with the jack
2 cheap
3 have a high enough pressure rating (the one i have do)
it is made up of a vair275c compressor, 2 1litre fires extinguishers, 90psi on and 150psi off pressure switch and 175psi safety valve. i havent put in a drain drain bung as i didnt want to alter the bottle in ANY WAY! as soon as you put holes in or weld them i would be dubious about structural integrity. The fire extinguishers that i have are pressure rated to 2.5MPa (362.6 psi).
i etched the inside of the bottles with hydrochloric acid and have lined them with resin, to prevent rusting.
the biggest problem i had was the reducers from the bottles down to 3/4inch BSP. the bottles use 24mmx1.5mmpitch so i had to get them machined up. but very happy with the results.
the tanks hold enough air to blow out your air filter anf makes pumping up tyres a lot quicker! but that being said i cant fill a tyre from sand to road pressure just from the tank. the compressor has to start up. it would be a lot better with a bigger tank, but i didnt want to take up valuable space.
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Rusho
Tubby Elfsdong
Joined: Sun Aug 02, 2009 11:30 pm Posts: 6501 Location: Northside, Brisbane
Vehicle: Coily Sierra
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Posted: Mon Sep 26, 2011 9:18 am |
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Good work mate
_________________ Shep is a closet jimny lover!!!!
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Joe
I live here!
Joined: Sat Jul 04, 2009 11:30 pm Posts: 48994 Location: Rockingham W.A
Vehicle: JB74
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Posted: Mon Sep 26, 2011 9:33 am |
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I like it
_________________ Joe likes boobs ( . )( . ) ( ° )( ° )
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alexvitara
az supporter
Joined: Sat Mar 26, 2011 8:45 am Posts: 1602 Location: Gold Coast
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Posted: Mon Sep 26, 2011 9:49 am |
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you need some NOS stickers
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Joe
I live here!
Joined: Sat Jul 04, 2009 11:30 pm Posts: 48994 Location: Rockingham W.A
Vehicle: JB74
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Posted: Mon Sep 26, 2011 9:57 am |
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alexvitara wrote: you need some blue paint & NOS stickers
That's a hell good idea
_________________ Joe likes boobs ( . )( . ) ( ° )( ° )
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buzbox
Joined: Thu Jul 16, 2009 11:30 pm Posts: 3600 Location: Wollongong NSW
Vehicle: LWB Sierra & XL7
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Posted: Mon Sep 26, 2011 10:00 am |
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You clever bastard.
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whincup
az supporter
Joined: Sat Apr 17, 2010 11:30 pm Posts: 1588 Location: Gracemere, QLD
Vehicle: '94 suzuki maruti
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Posted: Mon Sep 26, 2011 12:02 pm |
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alexvitara wrote: you need some NOS stickers
looking at the bottles and the hoses, i was thinking exactly the same thing
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dave91
Joined: Sun Mar 27, 2011 11:37 pm Posts: 411 Location: Brisbane
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Posted: Mon Sep 26, 2011 12:27 pm |
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That's badass! I wanna make one!
_________________ Every problem can be solved with a Ratchet.
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matfan
az supporter
Joined: Sat May 29, 2010 4:27 pm Posts: 935 Location: Paraguay
Vehicle: WT Tinny, NT lwb, 1L lwb
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Posted: Mon Sep 26, 2011 10:40 pm |
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That is bloody brilliant... I'll tell my friends and family that it was my idea!!
_________________ JrZook - Mine only hangs 2.5".
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gvzookdriver
az supporter
Joined: Mon Apr 13, 2009 11:30 pm Posts: 1833 Location: Brisbane
Vehicle: Sold zuk got a Bt50
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Posted: Mon Sep 26, 2011 11:09 pm |
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That's what I was planning on doing but can't find any "cheap" bottles
_________________ bt50 now but still love the zooks
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ball
I live here!
Joined: Wed Oct 22, 2008 10:30 pm Posts: 4673 Location: Katherine
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Posted: Mon Sep 26, 2011 11:19 pm |
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gvzookdriver wrote: That's what I was planning on doing but can't find any "cheap" bottles
Ask shep, he has a few now
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matfan
az supporter
Joined: Sat May 29, 2010 4:27 pm Posts: 935 Location: Paraguay
Vehicle: WT Tinny, NT lwb, 1L lwb
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Posted: Mon Sep 26, 2011 11:29 pm |
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Fatzook
az supporter
Joined: Sat Oct 27, 2007 11:30 pm Posts: 14977 Location: The Hills
Vehicle: Vitara, NGV
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Posted: Mon Sep 26, 2011 11:32 pm |
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I've seen that done before. But a single larger tank was used.
Your setup looks very bulky. Where in the car will you be mounting all of that?
EDIT: I re-read your post. Not familar with the jack storage area on a jimny, so I'll have to wait for pics.
IMO you should make a cradle to sit both bottles side by side. That will save some space for sure!
_________________ 2013 GV 1998 SV420 ute
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Damo
az supporter
Joined: Sat Jul 22, 2006 11:30 pm Posts: 4661 Location: Brisbane
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Posted: Mon Sep 26, 2011 11:34 pm |
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I have a tank a bit bigger than those ones that i'm planning to use for onboard air. I haven't figured out where to mount it though.
The only place I can put it is under the driver or passenger, outboard of the chassis rail. That would make it linds vunerable though I think, hence why it's still sitting in the shed.
_________________ SJ50.4.LYF
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Fatzook
az supporter
Joined: Sat Oct 27, 2007 11:30 pm Posts: 14977 Location: The Hills
Vehicle: Vitara, NGV
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Posted: Mon Sep 26, 2011 11:37 pm |
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Damo wrote: I have a tank a bit bigger than those ones that i'm planning to use for onboard air. I haven't figured out where to mount it though.
The only place I can put it is under the driver or passenger, outboard of the chassis rail. That would make it linds vunerable though I think, hence why it's still sitting in the shed.
Just make a bash plate for it.
_________________ 2013 GV 1998 SV420 ute
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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Posted: Mon Sep 26, 2011 11:38 pm |
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what about having it under and towards the back of the glovebox?? can still run an air line out the window and its protected from the elements =)
I'd put anything i was attaching on the passengers side too - counter the suzuki lean.. haha
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Fatzook
az supporter
Joined: Sat Oct 27, 2007 11:30 pm Posts: 14977 Location: The Hills
Vehicle: Vitara, NGV
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Posted: Mon Sep 26, 2011 11:40 pm |
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alien wrote: counter the suzuki lean.. haha
With air?
_________________ 2013 GV 1998 SV420 ute
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SQUIRREL
Joined: Tue Sep 20, 2011 4:06 am Posts: 62 Location: ADELAIDE
Vehicle: 1995 swb vitara
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Posted: Mon Sep 26, 2011 11:41 pm |
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I have an air tank bolted underneath my vitara
The cross rails on the chassis are easy to bolt to
Using 2" muffler clamps / not sure on jimny
But you can fit quite a large tank in there with no hang
Past the rails - will post pix when I can
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Damo
az supporter
Joined: Sat Jul 22, 2006 11:30 pm Posts: 4661 Location: Brisbane
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Posted: Mon Sep 26, 2011 11:42 pm |
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Dunno if it's me being a pussy or not but I just don't like the idea of compressed air tank inside the vehicle.
I mean it would probably be OK, but if I can fit it somewhere under the vehicle that's my preference. I don't like to take up precious interior space unless I have to either.
_________________ SJ50.4.LYF
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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Posted: Mon Sep 26, 2011 11:56 pm |
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Fatzook wrote: alien wrote: counter the suzuki lean.. haha With air?
hahaha but its compressed air so it weighs more.... seriously though, the tank and fittings would be a few KG - better to have it on the other side of the car regardless, every bit counts =)
damo - if its only holding lower PSIs and is rated higher i wouldnt see it as an issue in the cab.. take a look at paintball players - running, diving, sliding and smashing 68cu air tanks filled to 4500psi all day - no ones ever died from a tank exploding cos its never happened. People have been injured by their regulator exploding though - but thats cos they used the wrong lube in the internals and it dieselled on a refill.
_________________
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royce
omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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Posted: Tue Sep 27, 2011 12:04 am |
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Those thanks are designed for all that running aruond though, the neck of an extinguisher is going to be somewhat weak with all the stuff hanging from it
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DAZOOK
Joined: Thu Jan 28, 2010 10:30 pm Posts: 245 Location: Melbourne
Vehicle: Lwb Sierra
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Posted: Tue Sep 27, 2011 2:26 am |
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but its only air, compressed or not, it shouldnt explode, only leak out
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Microwire
Joined: Tue Oct 12, 2010 12:40 am Posts: 543 Location: Casula
Vehicle: Vitara 90'
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Posted: Tue Sep 27, 2011 2:58 am |
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DAZOOK wrote: but its only air, compressed or not, it shouldnt explode, only leak out
Yeah that's true, I saw something like that on mythbusters
Plus i also saw a vid of a guys shooting at an lpg tank and when it was punctured it just shot out a mad flame.
Though they can still explode in some situations though I wouldn't worry to much about it as long as you don't put to much pressure in it and you support the neck like what Royce was talking about.
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Dale
Joined: Thu Jun 17, 2010 1:42 am Posts: 80 Location: Brisbane
Vehicle: Sierra
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Posted: Tue Sep 27, 2011 3:05 am |
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Microwire wrote: Though they can still explode in some situations though I wouldn't worry to much about it as long as you don't put to much pressure in it and you support the neck like what Royce was talking about.
However it does have a safety valve rated at 175psi. So if the valve operates correctly it will not explode.
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dave91
Joined: Sun Mar 27, 2011 11:37 pm Posts: 411 Location: Brisbane
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Posted: Tue Sep 27, 2011 3:11 am |
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"i etched the inside of the bottles with hydrochloric acid" - What benefit does doing this give?
_________________ Every problem can be solved with a Ratchet.
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Microwire
Joined: Tue Oct 12, 2010 12:40 am Posts: 543 Location: Casula
Vehicle: Vitara 90'
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Posted: Tue Sep 27, 2011 3:26 am |
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Dale wrote: Microwire wrote: Though they can still explode in some situations though I wouldn't worry to much about it as long as you don't put to much pressure in it and you support the neck like what Royce was talking about.
However it does have a safety valve rated at 175psi. So if the valve operates correctly it will not explode.
Yeah that's true, I was thinking worst case scenarios. Just so we are clear, I think it's a good idea.
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Fatzook
az supporter
Joined: Sat Oct 27, 2007 11:30 pm Posts: 14977 Location: The Hills
Vehicle: Vitara, NGV
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Posted: Tue Sep 27, 2011 4:40 am |
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dave91 wrote: "i etched the inside of the bottles with hydrochloric acid" - What benefit does doing this give?
Helps the resin bond to the tank walls.
_________________ 2013 GV 1998 SV420 ute
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masterA
az supporter
Joined: Tue Jan 18, 2011 3:24 am Posts: 976 Location: Perth
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Posted: Tue Sep 27, 2011 5:21 am |
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That looks cool
Might need to find a big 9kg bottle
_________________ Fast,Cheap,Reliable-Pick 2 & 3rd is laughable
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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Posted: Tue Sep 27, 2011 6:26 am |
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royce wrote: Those thanks are designed for all that running aruond though, the neck of an extinguisher is going to be somewhat weak with all the stuff hanging from it
no theyre not... theyre all just a standard air tank with a standard threaded end... paintball manufacturers took the tanks and modified their own regulators to run a paintball marker. All im saying is that the tanks are tougher than most give them credit for, and its usually the fittings that leak/cause issues, not the tank itself.
_________________
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royce
omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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Posted: Tue Sep 27, 2011 6:35 am |
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So they all run around with pumped up fire extinguishers powering them things do they?
All pressure tanks are not created equal, look at the difference in the neck
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