I noticed my A/C isnt pumping cold air anymore. Kinda sucks on these hot days, but I can live with some gatorade and rolled down windows.
Anyways to the point:
I've seen this done, and it seemed fairly easy from the tech writeup, but was wondering if I could get some opinions from you guys.

How easy is it to switch your A/C to OBA?
Is it worth it? Should I just get a seperate OBA system?
How much would I be loking at to spend if I did the conversion?
For those that have done it, are you happy with the outcome?

Thanks in advance, for the help.


:D

As far as I know the only kind of compressors that can be switched to pump air are Sanden and York.

There is a nice writeup at http://www.off-road.com/jeep/cherokee/2001/05_may/onboard-air/onboardair1.html to give you a start. Not exactly the best, but you get the point.

What my buddy Matt did (wanderingwillys on this board) was rather cool. Instead of doing the hack and crimp deal like the orc writeup, he just went to a hydro shop and had them do up some braided SS lines with the fittings and all. No leaks or blowouts that way. I think he said it ran him about $40 to do. Rather cheap when you consider the PITA that doing it the other way can be. When you add it all up, you are only looking at maybe $10 or $15 more and you know it won't fail any time soon.

Originally posted by landuseorc
As far as I know the only kind of compressors that can be switched to pump air are Sanden and York.


Anyone know what kind of pump is on my 88XJ?
Ahh hell I guess I could go look.... Thanks for the help Josh and landuseorc

check out this link, they did it with an '88 XJ compressor: http://www.off-road.com/jeep/cherokee/2001/05_may/onboard-air/onboardair1.html

I am currently doing it on my '88 MJ with an '89 XJ compressor, and everything is going great except that I can't find a 3/4" NPT female adapter for the input and output on the compressor. I even went to The Air Tool Store off Madison in Sac. and they didn't have one. Feel free to PM me any questions or email mynameisbrett@hotmail.com

And if anyone knows where to get a 3/4" NPT female adapter, please tell me!

If I can't find the adapter I may drill and tap the male input and output to be a female 1/2 or 3/8 NPT.

I did it with my 86' with the 2.5. I dont remember what pump came stock, but it blew up after not putting enought oil into it. I know that the ford and toyota pumps work well. Here is Nobody's (User name on this board) web site link http://www.broncoii4x4.com/index2.htm
Read this, Its very informative and if you have anyquestions he has a bulletin board on his site that he checks thru out the day.

After opening the site click on the 1984 bronco II then click on Features. it should list on board air in the features

Thanks for the other great info guys.

I looked on my pump, the label was kinda rubbed away but it looked like it said INTERNATIONAL. So its not a york or sanden, but if someone has done it with it, I guess its a go. I got a lot of reading to do though, so, I better get on it!

Thanks for the links.

88 XJ should be a saden unless it was added aftermarket or for some really really strange reason someone swapped. Read the link I posted, that's a Saden so you can compare. The earlier XJs had the fittings on the top, while the newer ones used a newer Saden pump (imagine that...) which had the same fittings for inlet and exhaust, but were on the rear of the pump.

Ok Ill take a lok at that link, and another look at my compressor. Im pretty sure I didnt see Sanden anywhere on it, but Ill look some more, didnt have much time yesterday.