OP
Yeah. You're right. I will finish the project with the intention to be able to unmount it easily, and will see in the future if and how often I will actually unmount it.
On-board air system ideas and suggestions?
- Thread starter TJim
- Start date
Yeah. You're right. I will finish the project with the intention to be able to unmount it easily, and will see in the future if and how often I will actually unmount it.
xxdabroxx
TJ Addict
Didn't realize that the 400 had that from the factory.
From VIAIR's website:
Great minds think alike.
xxdabroxx
TJ Addict
I got rid of their switch so I didn't have to open the hood to air up. I also ditched the factory wire.
xxdabroxx
TJ Addict
The hole that mine fits down into would be a pain to get to. The guys who don't have the giant evap canister deal on the fender are lucky.
My 480C OBA doesn’t have it but it’s got a pressure switch in the air tank. Either way they work great.
Yes. Repeatedly. As a conscious effort to measure pressures under various conditions under controlled circumstances. Took notes.
But didn't wear a lab coat if that matters.
No, I'm saying that in my experiment hose pressure doesn't even get close to maximum output pressure of a Viair 400 series compressor and 25' 1/4" hose when moving from tire to tire with a closed chuck. That's even when dilly dallying on purpose.
I'm saying that one will hear the compressor start to work harder long before it gets to maximum pressure which should be enough of a reminder to the reasonable person to stop dilly dallying and put the closed chuck on the next tire without the need for a pressure switch to do it for them.
I'm also saying that a pop-off valve is a far simpler and direct means than a pressure switch to prevent any adverse effects that could ensue in the event excess pressure is allowed to build in the air hose during the time it takes to move a closed chuck air hose between tires, even if that time is excessive.
Edit: This was after I originally said that using an open flow air chuck rather than a closed chuck on a tankless system allows for the simplest system of all, with no pressure switch or pop-off valve. I even supplied a link.
YMMV
Last edited:
BTW, you can use the pop-off valve in your onboard air system as an emergency "no kneeling tire deflator" when you realize that you left your fancy new [ARB/Currie/Coyote/Fill in the Blank] deflators at home on the kitchen counter.
Just hook up an air hose and pull the ring. Not the best, but better than nothing. Turn on the compressor if you let out too much air.
BTDT
Just hook up an air hose and pull the ring. Not the best, but better than nothing. Turn on the compressor if you let out too much air.
BTDT
xxdabroxx
TJ Addict
I keep a valve core tool with spares in the center console. Probably don't need it as much any more now that I have a fancy deflator tool but they are handy if you take the cores out to air down. Those things are known to go flying at the least opportune time. I've never had the confidence but I've see people walk around and pull each core out of their tires then reinstall them in the same order at the dunes. My luck I'd be too slow and have 3 completely flat tires and 1 that is just right.BTW, you can use the pop-off valve in your onboard air system as an emergency "no kneeling tire deflator" when you realize that you left your fancy new [ARB/Currie/Coyote/Fill in the Blank] deflators at home on the kitchen counter.
Just hook up an air hose and pull the ring. Not the best, but better than nothing. Turn on the compressor if you let out too much air.
BTDT
I carry spare valve cores too.
You missed the "no kneeling" part. At the time there was something quite appealing about clipping on an air chuck and pulling a ring while standing upright.
I've never been able to pull valve cores without kneeling or bending over longer than my tired old bones would prefer.
You missed the "no kneeling" part. At the time there was something quite appealing about clipping on an air chuck and pulling a ring while standing upright.
I've never been able to pull valve cores without kneeling or bending over longer than my tired old bones would prefer.
If used properly there’s no way to lose a core.
I see how it could be done but you’d hope the air escaping would be enough to stop the user.
15+ years ago I was given a set of these for my birthday...
I set them for 13 psi and use them when ever I go off roading and tires require deflating.
One of the better birthday presents I received to use with my Jeep.
Just remove the cap from the tire stem, screw on the Staun Deflator and then remove them once the air hissing has stopped.
Even better than Staun's are the improved version from Coyote Enterprises, which coincidentally is the U.S. distributor for Staun deflators, but that is a subject for another thread.
https://www.coyoteents.com/deflators/
You’d have to pull the core and then unscrew the deflator without reinstalling the core. The remaining air loss should be obvious prior to reaching the point of losing the core.