Replacing Compressor, Do cans of R124 have oil in them?

[BillRod]

Hi All

93 Ranger.
We are replacing Compressor, Do cans of R134 already have oil in them?

Or do I need to purchase it separately?
And if so then how do I add it to the system?

Thanks
Bill

 

[RonD]

No, they shouldn't.

Yes you need to buy it separately, most Fords use PAG(polyalkylene glycol) 46, but double check it

Oil is added to the compressor directly before installing.
Best way is to pull out old compressor remove the lines then drain old oil into clean measuring container rotate pump to get all the oil out, to see how much oil is in there.

That amount is usually the amount you will want to put into the new compressor.
Or look on the compressor it may have the ounces of oil needed stamped onto it.

Video here: www.youtube.com/watch?v=TANldmkL0sg


Found this page: http://www.techchoiceparts.com/refrigerant-and-oil-capacities/efgh#ford-light-truck
Lists Ranger AC data

1993 looks like it used R12 and mineral oil, last year of it

Read here on changing over to r134a: http://www.aa1car.com/library/retrofit.htm

 

[will1861]

Really look at converting to the R134. It will save you in the future. I finally bit the bullet , and replaced my whole system. New everything. You may not have to replace it all but something's you really have to look at. Number one is why did you compressor fail? Did the Teflon seals fly apart and spewed all of the black grease and debris all thru your system? If this is the case you will have a time trying to flush all that out. I believe it can be done correctly but check out the forum for more info. I spent about $330 on parts by shrewd shopping and buying parts a little at a time. Evilbay LP can be a friend sometimes. Then about $40 on R 134 and Pag 46. Rented the tools from AutoZone for about $260. Make sure you pull a good vacuum for at least an hour. Longer if you can. Any kind of leak and you will be doing it again. Thanks to all the information and tips on here.My truck has gotten too cold to run on high here, even in traffic and 90*+ degree weather. It beat the hell out of the estimated $1000 quotes.I feel confident that I will not have to worry about A/C for a few years now. Follow whatever specs on the oil, that the old R12 system called for.

Sent from my RCT6773W22B using Tapatalk

 

[Diggerauditor]

Anytime you have the system open, i.e. to replace a part, it's a good idea to replace the receiver dryer/accumulator at the same time. The fresh dryer normally collects parts from the compressor should it fail and also the desiccant will keep the system dry from any moisture that gets in. Had to do that on my Son's Ranger when his Condenser developed a leak and had to replace it.