OBA lines

hoobness

New member
RE: thx

In the next few weeks Ill be adding my OBA...

I was buying brake line today, and I wondered if I could use 1/2" stainless steel fuel/brake lines to route the air lines? Id imagine I would want to use RTV in the joints etc..

Is this how I should do it?
I want it done clean, functional, and durable...
 

It will surely hold the pressure. As for using rtv, you can, but I doubt you'll have to. I'd suggest some plumbing goop over that
 
RE: FS: "If you can read this... ROLL ME OVER!" de

May I make a couple suggestions, those brake lines are great, but they can be rathyer expensive, Home depot sells a 20ft coil of copper tubing for $10, thats what I used in my OBA, and where angles got tight, I used a section of fuel line to make the drastic corners. Plus it will be easier to get an array of fitting sizes of compression fittings
 
RE: thx

You could also use rubber 1/2" brake lines if you want it to be cheaper.

As for fuel lines, they're not really made to have that much pressure in them. Fuel pressures are usually never above 10 psi at the most...while brake lines are rated for like 3,000-4,000 psi or more. OBA will usually be up around 150-170psi.
 

will these rims fit?

Or go to harbor freight and buy a 50ft roll of air line for 9.95 and be done........
 
that's true. I'd get the bigger 1/2" or even 3/4" stuff though...not 1/4".


There's really a ton of options out there!
 
I used the a/c line that came on my comressor with brass barbs and hose clamps to hook it up to stuff like the bumper and pressure switch.
 

I just used a roll of compressor air lines. It's definately cheaper that using brake lines and easier to work with than solid lines.
 
RE: Welding help anyone?

not only that but consider safety - the rubber shop type air line is a lot less likely to rupture... thats what i used to route along the frame rail to my rear tank on my old 91... and again... CHEAP and flexible... just my $.02
 
when you do it, be sure to put in enough pop-off thingy's in the system! Especially one between the pump and the filter, and then one more downstream from the filter!!

I've got a friend who's filter got plugged and then the bottom blew off of it! Let's just say it's a good thing no one was around the engine area during that...cause it would be bad! He's now got a blow-off valve (150 psi) before the filter...and let me tell you it's definatly worth it!!!
 

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