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Discussion Starter · #1 ·
I have a '98 TJ and want on board air. The thing came with A/C. Could I just disconnect the compressor from all the A/C stuff and plumb it to feed a tank? If I did this would I just have to put the A/C switch on and get air flowing? Sorry if these are dumb questions. I'm just sort of thinking out loud.

 

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/wwwthreads_images/icons/tongue.gif Yep, you could do that. Lessee.....I'm trading in my air conditioning for on board air?....??? Yep, sounds like blasphemy to me!/wwwthreads_images/icons/crazy.gif Are you nuts? Out here on the Jest Coast we KILL for A/C./wwwthreads_images/icons/crazy.gif It would be clean and easy, but it IS blasphemy. Oh, and one more thing....you could use the A/C SYSTEM as your tank. Heck, why not...it holds quite a bit./wwwthreads_images/icons/crazy.gif

CJDave
 
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Discussion Starter · #3 ·
I'm with Dave I to would kill for air.
If you follow some of the post on onboard air you will see some of them
have air and onborad air. they use a double pulley setup like off the alt.
I would check this out and even wait till i saw one if I had to before i would
sacerfice the air because of the cost of trying to put it back to working order.
Meaning that if you not an old fat guy like me you probbly not spend the money
to put it back to working order/wwwthreads_images/icons/smile.gif
 
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Discussion Starter · #4 ·
I actually live right here in San Bernadino County. I rarely use the A/C though. If I need A/C I just drive the XJ instead of the TJ. Seriously though, if I use the a/c compressor will it put out enogh to run air tools and air up tires faster than my quick air?

 
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Discussion Starter · #5 ·
I agree with the 'don't get rid of AC' posts. As Martha would say, "Air conditioning is a good thing." But I am interested in Mr. Tanner's allusions to having your cake and eating it, too. What double pulley arrangement are you speaking of? Enlighten us, please - I have AC and want air!'
sln

 

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/wwwthreads_images/icons/smile.gif SL, you are a great contributor to this forum, so I won't give you the "go back and find it" routine. Instead, I will give this valuable info out ONE MO TIME. What you do is remove the target accessory off the engine, be it an alternator, an A/C compressor, an air pump, or whatever..and you mount a nice 9.2 Cu In York in it's place. Mount it vertical, and make some real good sturdy brackets. Get a York which has two pulley grooves, and line one groove up with the existing belt drive which previously drove your accessory. THEN....using the convenient (unused)bolt hole pattern on the side of the York, you mount the accessory BACK ON THE ENGINE and drive it with the unused pulley groove on the York....sort of a satellite drive setup, like the early CJs do with the air pump off the pwr steering...using a short belt. I first did this in 1970, when I slapped A/C in a '67 MGB roadster. Off came the Lucas generator...on went a 6 Cu In York....back went the Generator on the outside of the York...looked like it came that way. AIR in an MG??? Hey, I had an unexpected move to Fresno CA...what else could I do? Fry?/wwwthreads_images/icons/crazy.gif

CJDave
 
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Discussion Starter · #7 ·
CJDave,

The original poster said he had a TJ. That means a serpentine belt. Your suggestion assumes v-belts, yes? Or do you know of a pulley with one serpentine belt groove and one v-belt groove?

I, too, want onboard air. But I live in Phoenix and have to retain my A/C.

-Roger

 

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/wwwthreads_images/icons/tongue.gif Oops! I wuz afraid of that......DRAT! That really complicates the whole process. You may be able to modify the York pulley by machining it away and and welding on a serpentine-type groove, and then convert the alternator back to v-style to satellite drive it from the remaining v-groove on the York. Just a thought./wwwthreads_images/icons/crazy.gif It is usually necessary to stare at the engine in the Jeep or whatever vehicle for at least an hour before you can scheme up a good plan, but there is USUALLY a way to do it./wwwthreads_images/icons/wink.gif

CJDave
 
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Discussion Starter · #10 ·
Looks like one agin my mouth over loaded my what ever.
I thought when I was surfing that i saw a page that talked
about running a york off of a ALT. pulley.
http://www.jedi.com/obiwan/jeep/yorkair.html
If you look at above address you will fine some information
on different ways to hook up a york.
I will keep looking for something new and if i fine it i will get back to the board.
/wwwthreads_images/icons/frown.gifSorry/wwwthreads_images/icons/frown.gif
 
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Discussion Starter · #11 ·
When mounting an alternator to the side of a York, what is the mechanism for adjusting the tension of the short belt?

 
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Discussion Starter · #13 ·
Blasphemy to remove the A/C? If it's hot enough to need a/c why not remove the top. Isn't that why we
bought convertibles to begin with?
Nickmil.
Sorry, tried the smiley moon guys but not smart enough on confusers to make it work.

 
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Discussion Starter · #14 ·
Roger -
You are correct about the serpentine belt.
CJDave-
I apologize for not stating in my quest for info post that I have a '94 YJ and it has a serpentine belt and that is what drove the question.
Is it really true that Jeeper people can't read other Jeeper people's minds?
Gosh!
sln
Sorry Dave - my question still stands.
sln

 
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Discussion Starter · #15 ·
CJDave-
What's this one hour routine? For a genius maybe but for us proles - well I've been staring at it for weeks and still no inspiration. However, cutting a pulley and ....
Hmmm.
sln


 
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Discussion Starter · #16 ·
Thanks for all of the ideas. I thought about the york with the dual pulley but couldn't figure out how to make it work with the sepentine situation. Again, I really don't care if I have a/c. Does anyone know what the a/c pump puts out for cfm and pressure? Will it work to run air tools and fill tires? What is the meaning of life? Oops, sorry. I went off on a tangent.

 
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Discussion Starter · #17 ·
I too live in AZ and know all about the need for AC. I've seen guys load the tubs of their jeeps up with ice... others rig up elaborate misting systems. You just dont know how hot it is until you experience it.

Brad Kilby has everything you need to retain the stock AC and add a York. Im going to do this to my TJ soon. MY CJ had AC but I ripped it out... even with a hardtop it was no match for an Arizona July (too many air leaks).....I'll use the chevy compressor for on-board air in it. Lots of people here using units other than Yorks and the end results are impressive.... just have to keep them lubed.

LarryM
85 CJ7, 350TBI ,T19 4spd
'00 TJ Sport, NV3550 5spd, D44, Teraflex system
 

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/wwwthreads_images/icons/smile.gif Any one of the A/C compressors out there will make power tool pressure. I believe we had ours set 95 to 125.....on at 95, off at 125....using the SqD pressure switch that is normally used for shop compressors. We had the most trouble keeping up when we were using a solvent gun than when we were running the impact tool. The engine was never over 1400 RPM. The trick is to locate a York with a fairly small pulley. Lots of Fords use small drive pulleys (Torinos). I always mounted the compressor and then scabbed the alternator onto that because the alternators are smooth, whereas the compressors are rough, so having the York close to the engine and secure was important. We made the add-on alternator brackets with some swing to them for belt adjustment. /wwwthreads_images/icons/crazy.gif How about this:....you make a nice dual mount, alternator and compressor together; run the alternator with the stock serpentine belt; then weld a v-groove pulley on the outside of the alternator pulley and satellite drive the compressor. The compressor will help balance the side load on the alternator shaft; the alternator won't even know it's there./wwwthreads_images/icons/crazy.gif The problem here is that I have never even SEEN under the hood of a late Jeepie Jeep, other than our ZJ 4.0. I guess I had better open the hood and stare at it for a while. Who knows? /wwwthreads_images/icons/tongue.gif The Jeepie Jeeps can't be much different than our Grand Cherokee as long as they have the 4.0/wwwthreads_images/icons/wink.gif Guess I'd better do my homework/wwwthreads_images/icons/frown.gif.

CJDave
 
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Discussion Starter · #19 ·
LarryM, Can you tell me how to reach Brad Kilby. I would like to here what he has got for a solution to the on board air problem.

Thanks,

Lance Green

 

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/wwwthreads_images/icons/tongue.gif Had a scant few minutes yesterday and popped the hood on the ZJ 4.0 to scope out the accessory array, and I have to tell you that DOUG97TJ is NOT going to find a good spot for a bigger PS pump. The engineer that developed that intake manifold mount probably had a big smile THINKING that he had just devised the "ideal" setup....which it IS...except that the pump is too feeble, and unfortunately, higher output in hydraulic pumps is a function of WIDTH. Right below THAT is the tension idler....reverse rotation....so not much potential there. On the other side (RH) is a space below the alt which DOES have potential for an air pump if it were the cylindrical type and was driven off a pulley welded to the alternator existing pulley. For hydraulic-drive winches on the TJ 4.0, it looks like a "wet kit" is the best way to go....IF you have a PTO door on the main box. Sometimes these things call for "different" solutions./wwwthreads_images/icons/crazy.gif

CJDave
 
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