2006-07-16 08:23:44 · 6 answers · asked by Ha! Invisible! 3 in Cars & Transportation ➔ Maintenance & Repairs
You can put R134 in R12 systems but first you must perform a retro fit. To do this you have buy screw on adapters to hook up 134 gauges. you must change the compressor , accumulator or drier and expansion valve or orifice tube. (Depending on which of these your system has) Also you must flush the system to get the old R12 oil out. Then you put a special oil for retrofiting called ester oil. Then you can use R134 in your system. If you don't change the components and just put the R134 in the system it won't cool properly and will ruin your compressor and your metering device(orifice exp. valve). Also your accumulator or drier will be ruined.
2006-07-16 08:39:11 · answer #1 · answered by nightfoxx 2 · 0⤊ 0⤋
This Site Might Help You.
RE:
What happens if you put R-134 in an R-12 AC system?
2015-08-13 02:23:34 · answer #2 · answered by ? 1 · 0⤊ 0⤋
After recovery of R-12, add 8 0zs of p.a.g. oil get retro kit from auto store and about 4 cans of 134-A, Seeing R-12 systems use more fron to fill you will find you will need less w/134-R. Engine off load 134-R into system till it will not take any more, Start eng. put a/c on high n fill till low side is at around 30 - 35 p.s.i, on low side and 250 p.s..i.s on high side, "humidity may variy readings" I have done this manny of times in past saving friends hundredes of $ dollars.
2016-03-13 13:50:57 · answer #3 · answered by Anonymous · 0⤊ 0⤋
There is an additive available that allows R134 to be placed into R12 system. Product is available at all local auto parts stores and it allows the oil based R12 to mix with the synthetic R134 lubricants. There was much hoopla about this procedure when R12 was phased-out years ago with many experts stating that due to the properties of R134 all hoses, fittings, condenser, etc would require replacement, compressor would grenade, etc, etc. Practical experience has shown that R12 systems can support R134 and work very well, although not as efficent as a system engineered for 134.
2006-07-16 08:34:18 · answer #4 · answered by Anonymous · 2⤊ 0⤋
It works fine....I have been retrofitting for over a decade. I always put 2 ounces of ester oil and an ounce of conditioner into the R-12 system after vaccuming the system down and then recharge. The R-134 will not carry the oil used in the R-12 system. Ester oil is pretty much universal....I could put propane in it and it would carry this oil. Easy as can be. Good luck.
2006-07-16 10:20:29 · answer #5 · answered by jeff s 5 · 0⤊ 0⤋
People have drained r-12 out, added 134 oil, add the refrigerant 134, then put it in and it worked, just that it takes about 30% less freon with 134.
2006-07-16 08:29:45 · answer #6 · answered by kayef57 5 · 0⤊ 0⤋
it gels, and destroys your compressor
2006-07-16 08:31:48 · answer #7 · answered by Ryan 4 · 1⤊ 0⤋