endless air

[brownbear]

Hi,
i seen these air compressors on a oz site

http://www.4wdworld.com.au/products/endless_air/

they do not see to north america.

I want to make something like this for my 3b BJ60.

does any know if this is just an AC compressor? how much work would it take to put something like this together?

buy a junkyard ac compressor, need some sort of regulator that dumps excess air and possibly a tank if you want to not have to run the engine everytime. I like the idea of loads of air. much better than the electric models.

So anyone build one before that can give me an idea what ups on this project.
with no oil in the air does the a/c pump have a short life?

Thanks for any input

 

[silvercrusher]

I think the ac compressor that you need is called a scroll type compressor. It is like a coil that turns and compresses the R or air but they dont need oil because the have no reciprocating parts. The spring in the housing looks like the springs on the hood hinges of your 60. Kinda neat. As the air gets rotated toward the center it is increased in pressure due to the lessening surface area.
Hope this helps a little.

 

[brisveganbj42]

i just converted my stock a/c compressor that came with my 3b to a air compressor with a few bits and peices and a tank.

its enough to run a rattle gun, pressure cleaner, air chuck, etc.

works well only used it a few times but no issues.. cuts out at 90psi and back in at 60psi.

 

[CruisinGA]

The compressor that silver and that website is referring to is a Sanden-type compressor. Fairly common, rotary screw operation I believe.

The most commonly used engine driven air compressors are York-type A/C compressors. There are several writeups in the tech section.

The york in particular is well suited because of its internal oiling system, and high flow. I have one installed in FJ40, it works like a champ.

If you have ever worked with normal air compressors, setting up one of these is very similar, drive is just provided by the engine accessory belts instead of an electric motor.

They all have electric clutches, so you install a pressure switch that engages and disengages the compressor when air pressure in the system drops below a certain level. Pop off safety valves are a necessity. Some require check valves, Yorks do not. I have blown apart shop air hoses while not being careful with my york setup. Scared the beejeesus out of me, knocked me over backwards. I'm guessing somewhere around 300 p.s.i is what did it.

I can run an impact wrench off the York with no tank and the engine running about 1000-1200 rpm. Very capable system.

My setup is more complicated that necessary just to fill tires, because I chose to have in-cab guages and run ARB's off the system, which requires a constant regulated pressure. Heres a pic to give you an idea.
If you have any more questions let me know. Read the tech articles, they explain the basics.


Right after I got it together-has since been cleaned up and all the hoses are connected.

The york straight out of a junkyard. Well in this case local cruiserhead Dan's house.

http://fc.paceacademy.org/~bquintrell/OBA2.jpg

 

[brownbear]

any know of where to buy a pulley for the engine that had space for AC for a 3B? is this something that matter for diameter? just wondering if it matters at what rpm it turns? I am not a expert on calculating certain diameters to engine rpm to figure out how fast I am spinning it. Compressor that is. or do you just run it at what ever speed and it either goes faster or slower?

I will read the york writeups in tech. thanks for the replys.