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  #1  
Old 06-12-2006, 07:21 PM
bowtieman55 bowtieman55 is offline
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Question A/C to non A/C (heat only)

I'm sure some FSJs came from the factory WITHOUT A/C...I was thinking of taking all the A/C stuff off of the Heap (compressor, lines, firewall box, etc.), but I want to have heat/defrost for winter wheeling. What all would I need to keep and does anybody have a A/C delete firewall box they would like to part with?
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  #2  
Old 06-12-2006, 07:42 PM
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JeepinPete JeepinPete is offline
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From what I understand, the AC system is a complete stand alone system. The heater is the same with or without AC...
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  #3  
Old 06-12-2006, 07:49 PM
never_2_high never_2_high is offline
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just take all the stuff for the a/c off and your done all you need is time i did it and relocated my alternator to where the a/c compreser was works out great for water crosings no mor sawgy alternator
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  #4  
Old 06-12-2006, 08:11 PM
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88GWSteve 88GWSteve is offline
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Does anyone know how much hp gain and weight loss for the FSJ?
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  #5  
Old 06-12-2006, 08:15 PM
bowtieman55 bowtieman55 is offline
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That's a great idea never_2_high. I'll have to remember that one.
I'd like to get rid of the big A/C box on the passenger side firewall...what I was asking (and maybe I'm confused with the stand alone A/C setup) is whether or not FSJs used a non-A/C firewall box sorta like GM used.
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  #6  
Old 06-12-2006, 08:24 PM
oldyellowwagoneer oldyellowwagoneer is offline
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Quote:
Originally Posted by bowtieman55
That's a great idea never_2_high. I'll have to remember that one.
I'd like to get rid of the big A/C box on the passenger side firewall...what I was asking (and maybe I'm confused with the stand alone A/C setup) is whether or not FSJs used a non-A/C firewall box sorta like GM used.
The box on the firewall is the heater only. a/c unit is contained in the under dash unit. Dennis
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  #7  
Old 06-12-2006, 08:26 PM
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JeepBountyHunter JeepBountyHunter is offline
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Earl,
What you have on the firewall is just the heater fan cage, and next to it is the heater core box. These items have nothing to do with your a/c. The Compressor lines run through your firewall underneath those components and into the evaporator in the a/c housing underneath the dash. This a/c housing also has the fan cage for the a/c...
Heater and A/C are totally different systems on FSJ's...unlike GM's..
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  #8  
Old 06-12-2006, 08:30 PM
bowtieman55 bowtieman55 is offline
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THANKS YALL!!! I finally have it figured out...LOL
Ok...well dang, I'm still stuck with the big black box...maybe I'll just try to get the A/C working... ONE DAY ANYWAY. The Heap has alot to be done BEFORE I even start to be concerned with that. Thanks again everybody for ALL the input!
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  #9  
Old 06-12-2006, 08:34 PM
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jsinajeep jsinajeep is offline
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I took all of my A/C and Heater box out. What I did for heat was, I went to part store and got a heater core for a Ford Van and built a box with a fan behind it and mounted it on the tranny hump. Made a cover for the front to control the air flow for the defroster. You can buy almost the same type unit in some 4x mag. I have picture some where if you want to see it.
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  #10  
Old 06-12-2006, 08:41 PM
bowtieman55 bowtieman55 is offline
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That would be interesting to see
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  #11  
Old 06-12-2006, 09:21 PM
oldyellowwagoneer oldyellowwagoneer is offline
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another way I've seen it done was to get rid of the heater box and plug the hole with sheetmetal then run your heater hoses to the a/c evaporator. There is plenty of heat and you also have the fans and vents still. I'd get an electronic water shutoff and use the a/c switch to power it. Dennis
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  #12  
Old 06-12-2006, 09:48 PM
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The PIG Smith The PIG Smith is offline
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When I was in the Army, we used a heater from a 5 ton truck to put in Jeeps, Deuce an a Half and and just about anything and everything.

They are self contained, just run power (24volts) and engine heated water to them and they work great.
Get really hot!
Duct work is optional.

Here is a Internet pic of an example of one in use:
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Quote:
Originally Posted by Jayrodoh
...but if it works, I wouldn't touch it.
Quote:
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Last edited by The PIG Smith : 06-13-2006 at 10:38 AM.
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  #13  
Old 06-12-2006, 09:55 PM
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The PIG Smith The PIG Smith is offline
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Here is a source for them:

Army Surplus Warehouse: Jeep Heater $69.95



Text from the ad:
Jeep Heaters have heavy duty heater core.
Simple to hook up, your two heater hoses fit over 1/2" pipes and then hook up 1 wire to switch.
These are 24 volt but we have sold hundreds of these and found that they work just fine on 12 volt.
Perfect for snow plows tractor cabs or jeeps.
New. Government Issue.
$69.95
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2005 Grand Cherokee Limited - HEMI! Current Daily Driver
1982 J10: Current Project, goal to be roadworthy in 2017: No Cab Brow!
1981 J20: Commercial flat bed. Long term Project: RUST! No Cab Brow!

Quote:
Originally Posted by Jayrodoh
...but if it works, I wouldn't touch it.
Quote:
Originally Posted by Lindel
Best laid plans, yada yada yada...
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  #14  
Old 06-13-2006, 10:13 AM
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JeepBountyHunter JeepBountyHunter is offline
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Awesome Bryan, thanks! I have a use for that.
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1946 Willys CJ2A, getting ready to fix up.


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  #15  
Old 06-13-2006, 10:20 AM
AMSting AMSting is offline
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Does anyone know the dimensions on this? My wife complains about the heater in her Wrangler, and this looks like a great upgrade. I wonder if it would fit under the hood? If I run the heated air through the existing vent, I think I should still be able to direct it with the normal vents.
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  #16  
Old 06-13-2006, 02:26 PM
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4LoTJ 4LoTJ is offline
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I've got an 81 Cherokee and I'd sure like to get rid of my heater box too. I've heard they are smaller/less obtrusive on some model years. Anyone have any info or pics?
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  #17  
Old 06-13-2006, 09:45 PM
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jsinajeep jsinajeep is offline
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Now, I have the picture of the heater I build. But need help on how to put them in the thread so you can see them. I have already down size them.
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