nameless Posted October 19, 2010 Share Posted October 19, 2010 need to convert, any links to this? i hear it doesn't take more than an hour and i'm not willing to run the old style Link to comment Share on other sites More sharing options...
88pioneer Posted October 19, 2010 Share Posted October 19, 2010 I just did this, was pretty straight foward viewtopic.php?f=9&t=7695 Link to comment Share on other sites More sharing options...
jeepdoggydogB Posted October 19, 2010 Share Posted October 19, 2010 Edit Hahahaha I took cooling to mean the A/C sorry my bad :oops: I found this site http://www.jeepair.com/ to be very helpfull on my 1991. Per instructions at jeepair.com I found that it was a good idea to replace the drier, discharge hose, and expansion valves when converting from r12-r134. I opted to have this done by a local garage as I didn't have the facilities to discharge r12 properly. My only regret was buying the new compressor as I thought it was Sanden but was a copy-cat from China. The new compressor was a tad taller than the old one and it took some getting used to when I was changing the spark plugs nearest the compressor. Overall I am very pleased with the quality of the parts, and the advice from the owner. I am into this about $700 including parts, I know that it was a lot of coin but well worth it. Link to comment Share on other sites More sharing options...
ParadiseMJ Posted October 20, 2010 Share Posted October 20, 2010 I've done the swap on both RENIX rigs. Contrary to the link posted I didn't feel that I had to use "the most expensive" stuff. Didn't think I needed to buy the Hi Flow pump, or the blue hoses. I also didn't have to remove the header panel to remove the radiator. :huh???: It cost me <$250.00 (each). New 2 row radiator, new OEM water pump, all stock hoses, belt, heater valve, overflow and a cap. Very simple too. You need to order a 92+ radiator. flush entire system, including heater core, remove radiator, flush core again, then flush the rest. Install pump, t-stat, hoses, heater valve and find a good spot for the overflow. On the XJ I put it right next to the radiator. On the MJ I put up where the old pressure bottle was. You can plumb the tranny heat exchanger lines (if you have an automatic) normally but I bypassed the radiator loop and just ran it straight thru to an HD cooler. You'll lose the e-fan actuating switch, as there is no bung on the 92+ radiator for it, but I also just put the fan on a manual switch thru the fan relay to the dash (the e-fan will still come on with the A/C or defrost, just not temp actuated) I know there are other options for that. The whole thing took me about 2 leisurely hours making sure I cleaned everything as I went. Fill with coolant mix and go... Link to comment Share on other sites More sharing options...
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