R12 AC compressor oil

[elwesso]

Quick question. Where do you guys get oil for R12 compressors? Im going to be doing some AC work for Ross and I want to change the oil in the compressor before I swap it in. Let me know where you can get this stuff...

WE have the oil charge but I need the oil that you phyiscally dump in the compressor.

[Q45tech]

From your AC parts supplier or BG salesman..................dealers of all makes should have some in stock.

[Q45denver]

Check with NAPA.

[elwesso]

Check with NAPA.

ok thats what I was hoping for. I was hoping they could just fill it up for me right there so i didnt have to measure it and stuff.

[Jeff Williams]

Wes, be careful. Most of those cans of refrigerant have oil and stop-leak in them already. Don't put 5 oz in the compressor then addR-12 with oil in it to the system. You will have too much oil in it.

[DrewQ45]

Wes,

Perform a flush then use ester oil. It works with any refrigerant and is easily found.

[elwesso]

Wes, be careful. Most of those cans of refrigerant have oil and stop-leak in them already. Don't put 5 oz in the compressor then addR-12 with oil in it to the system. You will have too much oil in it.

Theres a flow chart in the FSM that tells you how to do it. Ill just have to read the instructions to make sure I do it right.

Drew, when you say perform a flush what do you mean? You cant really do a flush on the AC without taking everything apart.

[maxnix]

You cant really do a flush on the AC without taking everything apart.

Probably something to do with uncompressible fluids.

[qship96]

evaporator cannot be flushed without removing expansion valvecondenser not effectivly flushable,replace if neededcompressor cannot be flushed with solvent,only can run fresh oil through itall lines,except the one with the muffler can be flushed with solvent

[elwesso]

Ok so heres a question. i was reading through the FSM and it says that you just add the amount to the compressor.. For instance, if you replace the dryer and compressor you should add whatever you pulled out of the old compressor + 5mL for the dryer.

What do you do with the "oil charge" cans? If you cna just add the fluids directly the compressor what purpose do the oil charges do? I suppose that way you could add oil if you were replacing some other component and the compressor is fine?

[qship96]

The only time you ever add oil is if you replace a component in the system or you have a catastrophic leak{burst hose,etc} otherwise,never use one of those over the counter cans of oil or oil/freon mixture,or any sealant miracle cure in a can----when replacing compressor you drain it and measure old oil removed from it and replace exact amount with new,adding additional amount of new oil to compressor for other components replaced at the same time with amounts listed in fsm

[elwesso]

Just to let everyone know, the oil issue is taken care of. The new compressor had oil already installed in it (it is a reman). It says that tampering with the oil level will void the warranty, so if its breaks its not my fault!!!!

[Haitian_King]

I went to Autozone today and the douchebag behind the counter told me that I needed to get some $40 AC recharge kit that contained 3 cans of coolant and an R12 adapter.

Up until like lat week my AC ran cold, now it just blows air My dad says to just add freon.

Can anyone explain how I can do this in my driveway without dying? Am I even solving the problem?

[DrewQ45]

evaporator cannot be flushed without removing expansion valvecondenser not effectivly flushable,replace if neededcompressor cannot be flushed with solvent,only can run fresh oil through itall lines,except the one with the muffler can be flushed with solvent

Evap doesn't have to be flushed. As long as 80% of the system is flushed, the rest won't matter.I do hear that 94'+ condenser (R134) condensers are not effectively flushable. I had my 90' condenser flushed without a problem.It's true that the compressor cannot be flushed, only drained.

[qship96]

Just to let everyone know, the oil issue is taken care of. The new compressor had oil already installed in it (it is a reman). It says that tampering with the oil level will void the warranty, so if its breaks its not my fault!!!!

yes,the reman comp. includes THE FULL SYSTEM amount,so if you install comp as is without removing ALL existing oil trapped in evap,cond,lines,etc.....you will have TOO MUCH oil in system,reducing cooling capacity

[Haitian_King]

Anyone? Answer?

[qship96]

Evap doesn't have to be flushed. As long as 80% of the system is flushed, the rest won't matter.I do hear that 94'+ condenser (R134) condensers are not effectively flushable. I had my 90' condenser flushed without a problem.It's true that the compressor cannot be flushed, only drained.

ever hear of the 80\20 rule? if your compressor has failed,the entire system must be 100% squeaky clean,or the new compressor will soon fail from the debris floating around caused by old comp. disintegrating-again this confirms why I leave all a/c work to trained professionals-too many people have just enough information to be dangerous when it comes to properly repairing a/c systems!

[Q45tech]

Without untrained owners and shade tree mechanics, many professional repair facilities would have to take in laundry to make ends meet.Eventually they get to repair extra things that that were supplementarily destroyed by the 1st or 2nd repair.

[DrewQ45]

ever hear of the 80\20 rule? if your compressor has failed,the entire system must be 100% squeaky clean,or the new compressor will soon fail from the debris floating around caused by old comp. disintegrating-again this confirms why I leave all a/c work to trained professionals-too many people have just enough information to be dangerous when it comes to properly repairing a/c systems!

Yeah but what if your compressor has not grenaded? My R12 - R134 conversion is still cooling like a champ in 90 degree weather. You can always pay the pros, even maintain your car at the dealership.... just pay through the nose.

I live for DIY and know my limitations. I also have two compressors sitting in my garage in case one goes. This is, if I don't sell them soon.

PS... The 80% comment came from two AC professionals, one who has been doing AC work since late sixties...Drew....

[Haitian_King]

I went to Autozone today and the douchebag behind the counter told me that I needed to get some $40 AC recharge kit that contained 3 cans of coolant and an R12 adapter.

Up until like lat week my AC ran cold, now it just blows air My dad says to just add freon.

Can anyone explain how I can do this in my driveway without dying? Am I even solving the problem?

I guess I don't deserve an answer?

[DrewQ45]

I guess I don't deserve an answer?

No you don't! Joke....

Here, click on the link in my first post and watch the video. It's really for AC conversion (R12 - R134) but it gives you an idea of what needs to be done. I think if you browse the site http://www.id-usa.com/ you'll find the vid that shows exactly what you need.

zerothread?id=235199