I guess I'd also like to know what people think of the concept...

If someone could find a way to do it, would it be worthwhile?

what is ctis ?

Central
Tire
Inflation
System

Why does portal or not matter? :confused:

Originally posted by ColdNorth
If someone could find a way to do it, would it be worthwhile?

I'd do it if it were cheap & easy, but otherwise probably not worth the hassle. And I don't see it being cheap or easy.

hey i have it on my rig. i push a button and a little midget crawls out from under my rig and runs around and inflates and deflates my tires as i see fit for the obstacale at hand. well one day i was sand wheeling and had mickey (thats the midgets name) running around deflating tires when out of the blue some unfriendly enviromentalist started shooting at me and as i was eluding them we came to a paved road so i pushed the button and out came mickey to air up my tires real fast so we could make a escape and ...well poor mickey took a bullet right in the ass. he quit on me so now i am back to the standard old get out of my rig and do it myself. :flipoff2:

Originally posted by DRM
Central
Tire
Inflation
System

Thanks. :flipoff2:

...What're your thoughts on it?

Originally posted by Vermont_Toy
Why does portal or not matter? :confused:

With portal, the actual axle that the wheel mounts to is only like 6 or 8" long, and you can easily access the back of it to run air through the axle.

With a straight axle, you have to figure out how to feed air into the axle itself, from the outside.

And I think I figured it out. :D

Originally posted by camo
hey i have it on my rig. i push a button and a little midget crawls out from under my rig and runs around and inflates and deflates my tires as i see fit for the obstacale at hand. well one day i was sand wheeling and had mickey (thats the midgets name) running around deflating tires when out of the blue some unfriendly enviromentalist started shooting at me and as i was eluding them we came to a paved road so i pushed the button and out came mickey to air up my tires real fast so we could make a escape and ...well poor mickey took a bullet right in the ass. he quit on me so now i am back to the standard old get out of my rig and do it myself. :flipoff2:

Thanks, jerk. :flipoff2: BTW, good to hear your new rig is rolling... Err, running. :flipoff2:

Well, if you figured it out please share.

JYS

PS: Camo, sorry to hear about your midget Mickey:D

I don't have on-board air yet, so unless I bum off a friend, I still have to use CTIS - Coin-op Tire Inflation System :D

Originally posted by Junkyard Slug
Well, if you figured it out please share.

JYS

PS: Camo, sorry to hear about your midget Mickey:D

Ya right. :flipoff2:

...Keep in mind I've never had a Dana-style knuckle apart...

...Well, fronts, you'd have to drill out the center of the stub axle... Maybe 1/4" or something... Far enough back that you're to the back of the outer knuckle housing... And also drill maybe 3 to 6 small holes into the axle perpendicular to its length, big enough that you're equalling the surface area of the 1/4" (like 3 at 5/32" or 6 at 6/64")... (EDIT: To clarify the holes, think of it like a pipe. :smokin: A long hole down the middle, with little holes letting air get into this big hole)

You need to get into the back of the housing, and add two rings that the axle would pass through and would seal to the axle, about 1/4" apart. To this space you would pipe the air line (which could run along the top of the knuckle to the axle housing).

...Drill out the middle of your hub (or maybe build new ones... I don't know)... Run a rotating connector in there between the end of the axle (which you'd thread), and out the middle of the hub. From that, run a hose to the valve stem.

Run Camo-style beadlocks that cover most of the rim so it doesn't get ripped off.

Run all hoses to a common feed off your OBA (or individual if you want to control them individually), with a variable regulator, gauge and knob all set up.

Tada.

But I'm probably on crack. :D I've just been trying to figure out how to get air into the axle for like a year. And it finally dawned on me. :D

...Do you think that drilling it like that would significantly weaken the axle?

Its hard enough keeping axles together without drilling holes in 'em! :nuke:

Please go take a Dana front knuckle apart, then re-read what you posted, and tell me if you don't agree that you sound like you're on crack.

I can see at least 4 things that won't work (from what I can discern from your post)., both from a money standpoint and from a "WTF" standpoint.

what about in the same manor that they do the ARB units simple and it works. would be pretty slow though.

Originally posted by WOLF359
Please go take a Dana front knuckle apart, then re-read what you posted, and tell me if you don't agree that you sound like you're on crack.

I can see at least 4 things that won't work (from what I can discern from your post)., both from a money standpoint and from a "WTF" standpoint.

Ok, so it won't work. You don't have to be a jerk about it. :crybaby2:

...:flipoff2:

...What are the 4 things?

Hey Cold, it's a noble venture. But don't go through the axle, go through the hub. The best example of what you want is the Army's 5 Ton M900 series or even better is the ESP (Extended Service Program) M35A3 2.5 Ton. The ESP Duece & a half was retrofitted to CTIS utilizing a manifold attached to the back side of the wheel hub (w/JB Weld!) that supplies air to the hub, then wheel manifold. Much easier to understand if you can see it. ;)

Originally posted by ColdNorth


Ok, so it won't work. You don't have to be a jerk about it.



I wasn't trying to sound like a jerk, YOU said you were on crack, I was just agreeing with you ;)

I know a guy that is trying to set it up on a ford dana 60
he said something about it having air acuated hubs?

but don't ask me about it cuz I'm on crack:smokin:

Was this guy with the Ford Dana 60 using the late model unit bearing stuff??
Those' Air 'actuated hubs are actually for the pulse VACUM hub locks I can't see the seals on the bearings withstanding the kinds of pressure that an inflated tire would see (20-30 psi)?

In addition to the retro-fitted 2.5 and 5 ton militray truck WWII era ducks (2.5 ton trucks with amphibious bodies) had a CTIS only they called it a Central Tire Pressure Control. This may be worth looking into.

JYS

Originally posted by WOLF359


I wasn't trying to sound like a jerk, YOU said you were on crack, I was just agreeing with you ;)

Ya, fine, jerk. :flipoff2:

Thanks guys... I'll look into it some more. I think I better build a truck before I figure out how to have the ultimate lazy-man feature of airing down with a button. :D