Re: RE: JPOR: AIR TANK

[Obi-Wan <bvh@xxxxxxxxxxxx>]

>> So big is better.  I found a 7 X 20 3 gallon tank from the air brakes of a
>> moter home.  I was hopping to place it above the rear differential or along
>> side the frame next to the driveshaft in my '94 YJ.
>
> I wouldn't think placing it over the differential would be wise because it
> may have the potential to make contact under spring compression.
> Regardless, do you think you should make some kind of a shielding plate to
> protect it from getting hit or punctured while off roading?  Where do
> other's who have done this before put their tanks?  I plan on doing this
> up-grade on my CJ sometime(once I put it back together).

I put a 6x19" 2-gallon tank above my rear axle.  There's no way it's
ever gonna get hit by anything other than the pinion yoke or a loose
driveshaft.  I did some measuring, and decided that with a stock
suspension (which I had at the time), 6" was the largest diameter
I could fit over the yoke.  I still have some paint scratches on the
tank where the yoke rubbed it occasionally.  I also wouldn't go much
longer than that because you start getting pretty close to the heat
of the exhaust system.  You can see pics and a writeup of my tank
placement at http://www.jedi.com/obiwan/jeep/york_tank.html

With my SOA lift, there's miles between the tank & driveshaft.  I plan
to someday make a skidplate and more secure mounting system for the
tank in case my driveshaft ever lets loose.  It'll also need to move
a little from its current spot if I ever do the custom rear shock setup
I've got planned.

As for tank size, other are right.  Get the largest tank that will fit,
but don't worry if you can't fit bigger than a 1.5-gal tank.  1.5 gal
is plenty to run an ARB all day long, and 3-gal isn't enough to fill
a tire from 15 to 30 psi or run air tools unassisted.  You'll need a
decent compressor either way.  The only difference it'll make is how
often your compressor clutch cycles on & off.  I have found that my
2-gal tank is just right for topping off low bicycle tires without
turning on the engine/compressor, but that's moot now that I've got
a 110V compressor in the garage.

				-- Obi-Wan
				   '95.5 YJ, '77 Wag

-- 
Ben "Obi-Wan" Hollingsworth                               obiwan@jedi.com
"You know, he kind of looks like Yoda"  -- Jim Davis, about my baby Micah
            Anybody want to buy a Jeep XJ Dana 44 rear axle?