i have a 1986 honda accord and i want to convert the refrigerant from R12 to 134 does anyone have any pointers

Question

a friend was telling me something about adding a certain amount and the difference between the high side and the low side. could someone please break this little information down for me please

Answer 1

you actually need a different compressor, your existing hoses will work, it is a little expensive

Answer 2

It's not as bad as everyone says. You do need to go somewhere though and have them recover your old freon instead of letting it out in the air. If you don't have any in the system you're ok. You should have it vacuumed but you don't have to. It will just take longer for the system to accept the 134a. You can go to Advance Auto Parts or another store like them. You can go online with them as well. They have a kit complete with retro fittings that screw on your existing ones to let it accept the 134a. When 134a first came out the oil they used wouldn't mix with the r-12's oil without turning to a gel in the lines. That's no longer a problem. The two types of oil work perfectly well together. I've ran 134 on top of the leftovers of r-12 in my 75 Lincoln for two years with no problems at all. The kit you get at Advance is between $29 and $32 depending on the store location and whether it is on sale. It comes with exactly enough 134a already premixed with oil to do a normal system. It also has guages and detailed instructions on both paper and dvd to help you along. It's a no-brainer. The 134 hose will only fit the low pressure side so there's no danger of you trying to put it in on the high pressure side. Just be kind to the atmosphere and don't release the old freon into the air. You might want to have grandkids someday who can walk outside without being baked by the sun. Also be careful not to expose your skin to freon for it can cause very bad burns and frost bite.

Answer 3

O.K. this is what you do if you have the equipment.1 recover the old refrigerant.2replace the orifice tube and reciever/drier.3 vacuum the system to approximatly 30 in. of vacuum.for at least 45 min, to one hour.Shut off your hoses and watch your guages.If the system holds the vacuum,you are ready to recharge.You do not,I repeat NOT have to worry about the oil in the compressor!!Mineral oil will not mix with 134a.Research how much oil is required for the comp. you have,probably a Sanyo,and subtract that from the amount of PAG oil that you will add to the 134a .You will also have to replace the fittigs on the low and high side schrader valves(charge ports) You do not have to change your comp. although if you do you can still use new mineral oil in the comp. since the 134a will not mix with it the comp.will not go dry ever.Put the required amount of PAG in the reciever/Drier and add the rest as you charge .This is a proven method and I've never had a "come back" as a result.

Answer 4

Its more detailed than that. First you have to have that R12 taken out by a A/C place. Don't shoot it directly into the air...As is a no no. Next you'll have to pump out the old oil from the compressor. The thing driven by the belt. Also You will have to add some new oil that is made for having R134 in with it. Then, you have to have a conversion kit...Will have all the things you need like valves, and refrigerant, and such. And you should be able to enjoy your new A/C again. Hope that was helpful.

Answer 5

You don't need a different compressor to do this,,i own a repair shop,,and we do it all the time there is a kit you can buy at any advance or auto zone,to do it with,,it allows you to recharge it with 134-a,,instead of r-12,,i wish people who answer questions on here would answer ,,based on what they know,,instead of what they think they know,,i know some of these wrong answer,s have costed a lot of people ,,a lot of money,,any way just ask for help ,,at advance,,and they will be glad to explain it to you,,it really is simple to do,,good luck with it,,i hope this helps.

Answer 6

a little more info. you will need to remove as much of the old oil as possible and change the reciever drier since it holds most of the oil. when you add the new r134a you ONLY add 90% of what the original r12 system called for. the system pressure will be higher than the r12 system but not alot as your r12 system doesnt hold but like 36oz of r12

Answer 7

Go to any good auto parts store and they have a kit that will let you convert the system over yourself. It's really simple and it's inexpensive.