Okay, my AC has been out for too long and it gets too hot in my 4x4 during the summer. What all do I need to get for an R134a conversion? I know a guy who'll do it for me whether or not I get the parts myself, and I get a discount at my aunt and uncle's auto parts store, could someone please post a list of needed materials?
just buy the conversion "kit"..its just a fitting thats it....but make sure you get it vacuumed out and charged correctly don't mix r12 with the 134..i converted mine about 5 years ago and no problems at all
You could do the 134a conversion kit relatively easy and hope for the best, or spend a little extra and increase your success. The compressor should be pulled and drained of the r12 mineral oil, the lines, condensor, ect. flushed, the reciever dryer changed to a new unit, that should be done regardless if the system has been open for a while, any O rings on the compressor and lines changed to 134 compatible ones, fittings installed on the low and high side compressor ports, the correct amount of PAG oil put back in the compressor or you can inject it after vacuuming, the system vacuumed down for at least 30 minutes and then let sit to see if it holds vacuum. If alls well put the 134 plus oil (if not installed earlier) in and fill to satisfaction. If possible stay with the R12 as it'll cool better, but its spendy nowadays. Be cool
Its hard to get that r12 now adays, unless ur lisenced. but yea how do you vacum it out? cuz ive been wanting to do this swamp. and what happens if you mix both fluids?[/QUOTE] The R12 is harder to get nowadays but is still around, you can buy it off Ebay with no liscence if you say its for resale use To vacuum down the system you need a vacuum pump, there are air operated or electric, the electrics are far better, hook up the AC gauges to the system, open the valves and pump it down for about 5 mins, shut the suction line valve and pump off and let it set for 5 or 10 mins, if it looses vacuum you have a leak somewhere that needs fixed, if it holds vacuum, turn things back on and continue pumping for 30 mins, then recharge the system. Mixing the 2 is not a good idea, they are not compatible and can end up causing problems like a ruined compressor.
you can get your e.p.a. 608 certification rather easily, then you can buy r-12 without any risk. i got mine through work (i'm a welder, and it was a piece of cake). the only thing i had a hard time getting was r-22, the vendors wanted a 609 cert. but i still managed to get it. here is a link: http://www.epatest.com/608/
