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Air tank mounting question? (pic)>>>>

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Burt4x4, Mar 26, 2001.

  1. Burt4x4

    Burt4x4 3/4 ton status

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    [​IMG]
    OK this is were I was thinking of mounting an air tank.
    So on the pic look at the bottom right you can see the rear shock on the drivers side. After I relocate the shocks(like the U.A.V.) I wanted to use the space to the right of this pic for mounting some kind of air tank that will mount or strap accross from framrail to framrail.
    [​IMG]
    My question is Tempeture?? Do I need to worry about my exshaust (bottom of pic) heating up that air tank? Does heat have a negative effect on compressed air?
    After a road trip and I unload the stuff inside my rig I notice whatever is touching the floor is warm, the floor is warm from the 4 hr road trip.
    Any thoughts would be great!

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <A target="_blank" HREF=http://www.burt4x4.coloradok5.com>http://www.burt4x4.coloradok5.com</A>
     
  2. jarheadk5

    jarheadk5 1/2 ton status

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    Yes, that same heat that warms your floor and gear will cause a pressure increase in the air tank. I'm assuming you'll be running an on-board compressor. If you're going to run a pre-fab air tank that has a max pressure rating (NOT the test rating), you can set your regulator 20-30 psi below that for safety. Or, you could get a safety valve that will vent off excess pressure above a certain point. Personally, I'd go with the safety valve AND set my regulator output about 10psi below the vent pressure of the safety valve. Compressed air tanks that go boom are VERY destructive.

    If you can find them, the air tanks from a tractor trailer would probably work great. They're DOT-approved, so they meet safety standards, and they may already have safety valves installed that are set for the tank's safe pressure.

    [​IMG] Semper Maintenance!
     
  3. Burt4x4

    Burt4x4 3/4 ton status

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    Thanks jarheadk5! Ya the "go boom" thing is what I want to prevent! Any ideas as to were to look for a semi truck air tank? Are they long and narrow or short and fat? I like they way you say to use both regulator and the safty valve that will pop if the pressure gets too high!
    I don't have onboard air yet but it's on the list of mods to do!![​IMG] along with 50 + other things[​IMG]
    What do the rest of you use for an air tank?

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <A target="_blank" HREF=http://www.burt4x4.coloradok5.com>http://www.burt4x4.coloradok5.com</A>
     
  4. ftn96

    ftn96 1/2 ton status

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    Im having some rocker replacement tubes made. They are to hold about 120 PSI, not much volume but should be enough to air up one full tire and top of all 4. they are going to be 3"x3"x52". And if your going to have a compressor on board that is the way to go in my book.

    Will work for beer, parts and tools.
    90 Jimmy 350TBI-700R4-241-33" BFGs-10 bolts w/4.10's
    <A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
     
  5. BIGJ

    BIGJ 1/2 ton status Author

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    That is exactly where my air tank is. I got it from a semi salvage yard for 15 bucks, and it came with straps to mount it to the floor. It is rated for 150 psi. I leave the tank empty and just fill it when I need it. Even with the engine running, It never stays full enough to overfill and pop the safety valve.

    BIGJ
     
  6. Burt4x4

    Burt4x4 3/4 ton status

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    Ya know ftn96 I too am gonna replace my rockers(whats left of them)
    [​IMG]
    I also want 3x3 square stock for rock sliders. I think I read somewere that square is not a good shape for compressed air?? Is their a good reason why all air tanks are round?
    What about when your slider slams on a rock? Will the compressed air inside have a negative reaction to a slam on a rock?
    Sorry for all the questions just want to do this air tank thing right the fist time............

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
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  7. Burt4x4

    Burt4x4 3/4 ton status

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    Hey BIGJ, do you have any pics?? Are you just useing the tank as storage before you hit the trail or do you also have onboard air to fill the tank with?
    I was thinking of adding a tank first that I could fill before a trail ride and then atleast have some kind of compressed air until I get the onboard setup...

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
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  8. ftn96

    ftn96 1/2 ton status

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    Well, Burt that is a good question. That I cant answer with certainty. You may wonna give Depdog a call. He is using his as rock sliders as well as air tanks. I on the other hand dont do any rock climbing so Im not really worried about that. But I know Dep is a little more extreme in his wheelin than I am.

    Will work for beer, parts and tools.
    90 Jimmy 350TBI-700R4-241-33" BFGs-10 bolts w/4.10's
    <A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
     
  9. ftn96

    ftn96 1/2 ton status

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    On the other hand 120-150 is not that much pressure. IF in pops when you hit something I dont think 120 psi is really going to explode per say if your material is thick enough. Im planning on using 3/16 material. But I could be totally off base here.

    Will work for beer, parts and tools.
    90 Jimmy 350TBI-700R4-241-33" BFGs-10 bolts w/4.10's
    <A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
     
  10. ftn96

    ftn96 1/2 ton status

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    And know that I think about it, up there where you talking about does seem like a good place. Lots of usable room. and if you put in a pressure relief valve you should be good to go, and not have to worry about bursting it on a rock. Plus you have more room for volume and you wont have to really cram alot of extra air in there. So your pressure should be relatively low. I'd go for that. You got me thinking now!!!!

    LOL!!! You bastard. P.S. I have a welder on the way. Free. From my dad. Its a Mig somehting or the other.

    Will work for beer, parts and tools.
    90 Jimmy 350TBI-700R4-241-33" BFGs-10 bolts w/4.10's
    <A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
     
  11. Depdog

    Depdog 1/2 ton status Author

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    I do have rocker knockers, but they are not used as air tanks. I have 3 air tanks on my rig all linked in series. I have one 3.5 gallon under the hood, it goes to the two under the bed. The two under the bed are right where you have the picture of wanting to mount yours. I welded them together with some angle iron then welded tabs to them and bolted them to the bottom of the bed. Those two tanks are a 10 gallon one from a Tractor Trailer and another 3.5 gallon one. The 3.5 gallon ones are like Currie or Sun air tanks. I also have a 135 psi (or maybe 140) pop off valve to relese the air if it should for some reason get overpressurised. 0 problems so far, ask Grim, they blew up out air mattreses at last years K 5 run in Tellico and they will again this year!

    Depdog

    <font color=blue>Weenie K5, little mods' Small Tires!</font color=blue>

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  12. Burt4x4

    Burt4x4 3/4 ton status

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    hahaaLOL, Sorry man!
    But your right about volume!
    So now back to the semi truck wreking yard.......

    Hey cool, having a welder is a bonus!!

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
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  13. BIGJ

    BIGJ 1/2 ton status Author

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    Burt4x4, I have a york, so I can fill it whenever I want. I will try and take some pics and e-mail them to you this week. The tank is pretty small, it wouldn't last long without some way to fill it back up. But with constant air, it can run air tools, and fill LOTS of tires.

    BIGJ
     
  14. Burt4x4

    Burt4x4 3/4 ton status

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    Ya BigJ and DepDog if you can get some pics for me of the mounting that would be GREAT!!
    Thanks Guys!

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <A target="_blank" HREF=http://www.burt4x4.coloradok5.com>http://www.burt4x4.coloradok5.com</A>
     
  15. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    I'm using the rocksliders as air tanks. I think the confusion is Dep and I have simular Sliders that are part of the body.
    You can see some pictures of them on my site (link in sig)
    I keep 140psi in them all the time. I plan on using the A/C compressor to fill them but Mine has a bad clutch and haven't had the freon drained yet.
    Now you do need to install a drain for these tanks. I Used a 3/8's bolt and put it up as close to the front as possible. Seemed I smack mine more in the middle and back than I do the front. So far I have had no troubles and believe me they have hit rocks HARD a few times. I have had people come running out of the wods to see the destruction only to see my truck come off a rock and the rock looking like it lost. They were sure they were going to see a rolled truck it was so loud. Scared the pajesus out of me the first time. Took a bad lin dropped a front tire off a ledge that was taller than I had droop and took the full weigh of the truck on that side on the rocker. Sounded like the truck should have been ripped in half. Only damage was cured by about 30seconds with Satin black rustolium in a rattle can.
    I used 3/16 wall box.

    Diging it in the dirt with my K5's
    Grim-Reaper
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  16. Burt4x4

    Burt4x4 3/4 ton status

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    Ok cool, Thanks Grim!
    I think I should do both!
    I am doing the 3x3 3/16 Square tube rocker knoker/slider thing for sure so might as well set them up to accept air also. Then also have the under bed tank for more volume too.
    Cool Thanks
    Now the harware collecting begins................

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
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