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OBA -> On Board Air Mega Thread & BS

Discussion in 'Technical Chat' started by Gunshot-6A, Oct 20, 2013.

  1. May 26, 2021 at 1:58 AM
    #2141
    ClassyTacos

    ClassyTacos Wait what.

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    Appreciate it, your install is what got me thinking about it.
     
    Grossomotto likes this.
  2. May 26, 2021 at 3:47 AM
    #2142
    Pb12in

    Pb12in Well-Known Member

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    Switch.jpg
    Some dremel work later ...


    Port.jpg
    Haven't come across anyone mounting the chuck in a refreshed 3rd gen grill, so decided to see if it is robust enough. So far so good, but time will tell.
     
    Grossomotto and shiftd like this.
  3. Jun 2, 2021 at 2:09 PM
    #2143
    SaltCity

    SaltCity Member

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    Got my ARB single mounted this past weekend. Took forever to get delivered. Seems to be on backorder everywhere I looked. Current set up is using the bracket it came with mounted to existing mount holes under the hood of my 3rd gen. We'll see how this goes but thinking i'll eventually move it to a bed cubby down the road.
    IMG_0691.jpg
    IMG_0692.jpg
     
    Pb12in and shiftd like this.
  4. Jun 6, 2021 at 1:08 PM
    #2144
    MonkeyProof

    MonkeyProof Power Top

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    would anyone know what gauge wire the Viair Pressure Switch uses?
     
  5. Jun 19, 2021 at 3:31 AM
    #2145
    diabetiktaco

    diabetiktaco Instalander

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    I've never seen this done on here so I figured I'd post the pic. If anyone is interested in how I got it to work.

    194743738_10159241984788544_6805485414115559641_n.jpg
     
    RyanDCLB, TwistedTLM4 and Pb12in like this.
  6. Jun 21, 2021 at 4:00 PM
    #2146
    ClassyTacos

    ClassyTacos Wait what.

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    Got some new switches installed. IMG_4011.jpg
     
  7. Jun 23, 2021 at 6:54 AM
    #2147
    Salty_Dog

    Salty_Dog Tactical Panda

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    I have a slow leak in my air system that I have been unable to locate.

    Is there any such thing as a Bar's Leak you can use in an air system?
     
    Gunshot-6A [OP] likes this.
  8. Jun 23, 2021 at 8:19 AM
    #2148
    bagleboy

    bagleboy Well-Known Member

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    Snug top Rebel, Thule tracks, ditch tracks, Bagged rear suspension, F/R anytime camera, intermittent wiper switch...
    Just windex or soapy water you spray on each joint.
    To actually plug the leak you could put Stan’s sealant in through the Schrader valve (pull the core).
     
    ClassyTacos and Gunshot-6A [OP] like this.
  9. Jun 23, 2021 at 8:28 AM
    #2149
    Salty_Dog

    Salty_Dog Tactical Panda

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    I've done the soapy water trick on all the joints and have not been able to find it. It would be great to insert some kind of sealant that would seal the leak from the inside out.
     
  10. Jun 23, 2021 at 8:43 AM
    #2150
    bagleboy

    bagleboy Well-Known Member

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    Snug top Rebel, Thule tracks, ditch tracks, Bagged rear suspension, F/R anytime camera, intermittent wiper switch...
    Stan’s is a bike tire sealant that suspends small adhesive particles in a thin fluid. Getting the sealant to go to the leak is easy in a tire(unless the leak is on the rim side but that can be dealt with) since the sealant all goes into the tire. In this case the sealant will mostly go to the air bags so it’s a question of whether enough will find the leak as it goes by to plug it.
     
    Salty_Dog and Gunshot-6A [OP] like this.
  11. Jun 23, 2021 at 9:01 AM
    #2151
    RyanDCLB

    RyanDCLB Well-Known Member

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    I've had good results by removing the bag, installing the Schrader valve directly to the top of the bag, filling the bag/valve with "fix-a-flat", rotating the bag per the instructions (for a tire), and reinstalling. Although, I do like the Stan's product, because, apparently, the fix-a-flat stuff is toxic. o_O

    Also, I've had good luck requesting a bag replacement, since most companies have a lifetime replacement warranty. :thumbsup:
     
    ClassyTacos likes this.
  12. Jun 23, 2021 at 9:22 AM
    #2152
    Salty_Dog

    Salty_Dog Tactical Panda

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    It's not my airbags that are leaking. It's the whole OBA system. Every time I start up the truck after it has been sitting, the air pressure in the tank has dropped to 100psi (or less) and the compressor kicks on and has to pump it back up to 150psi.

    There must be a leak in the lines or one of the joints, but I can't find it.
     
  13. Jun 23, 2021 at 9:35 AM
    #2153
    bagleboy

    bagleboy Well-Known Member

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    Snug top Rebel, Thule tracks, ditch tracks, Bagged rear suspension, F/R anytime camera, intermittent wiper switch...
    Keep the sealant away from any pressure switch or gauge, and it might plug the tank drain as well. I switched from ptc to compression fittings w/brass inserts and nylon compression rings. Barb fittings also can be problematic if you don’t use wire ring clamps(band clamps don’t do well at small diameters). Pipe thread should be simple enough but I’ve been finding a lot of nicked threads that make sealing more iffy.
     
  14. Jun 23, 2021 at 10:14 AM
    #2154
    RyanDCLB

    RyanDCLB Well-Known Member

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    My bad / wrong therad. :D Does it drop below 100psi? System should drain completely if there was a leak. :notsure:
     
  15. Jun 23, 2021 at 6:56 PM
    #2155
    buyobuyo

    buyobuyo Read The Fucking Manual

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    A thing or two...
    How slow of a leak are we talking? No system is truly airtight and will have some bleed down.

    How long is it sitting between starts?
     
  16. Jun 26, 2021 at 6:25 AM
    #2156
    Salty_Dog

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    I know that but mine has become worse in the last few weeks.



    It will bleed down 50% overnight.
     
  17. Jun 26, 2021 at 6:26 AM
    #2157
    Salty_Dog

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    It will drop 50% overnight.
     
  18. Jun 26, 2021 at 6:30 AM
    #2158
    Salty_Dog

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    I use Push-to-Connect fittings.

    Push.jpg
     
  19. Jun 26, 2021 at 6:29 PM
    #2159
    bagleboy

    bagleboy Well-Known Member

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    Snug top Rebel, Thule tracks, ditch tracks, Bagged rear suspension, F/R anytime camera, intermittent wiper switch...
    I did too. I find that compression fittings are much more reliable and disassemble without scratching/scuffing the tubing but that said it’s the tapered thread fittings that seem more prone to leaking. In some cases I’ve found FIP threads seriously messed up or not cut deep enough to have sufficient overlap so I picked up a 1/4 npt tap. I have probably more than the usual uses for OBA. I also grabbed a 1/8” and a 3/8” tap. A light touch with a triangular file and get the worst burrs on male threads.
     
  20. Jun 28, 2021 at 6:12 PM
    #2160
    buyobuyo

    buyobuyo Read The Fucking Manual

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    A thing or two...
    50% bleed down overnight seems a little much. I didn't read all the responses in depth, but I think someone suggested that it might be leaking down through the pump. I'd try throwing a shutoff valve and gauge after the pump output to see if it still bleeds down the same. With the gauge between the valve and the rest of the system, you'll he able to tell at a glance how much the system bled down overnight. If it bleeds down the same then the leak is somewhere else, and you can move the valve/gauge around to try to isolate which component(s) is leaking.
     

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