boyluke2413
New Member
- Joined
- Jul 29, 2022
- Messages
- 11
- Reaction score
- 0
- Points
- 1
- Location
- Saxe, Virginia
- Vehicle Year
- 1987
- Make / Model
- Ford Ranger
- Transmission
- Manual
Hello all. I drive a 1987 ford ranger XLT with about 120k miles, been daily driving it for almost a year now and its great and rarely gives me issues. Being its an XLT it has factory air conditioning, r12 of course, and ever since i got the truck the system was empty and it has been empty for 5+ years (truck sat not running for years before i got it). I recently started driving 90mins to work, and with this summer heat, i finally decided to retrofit my ac system.
So far, I have-
-replaced compressor
-replaced drier
-added retrofit fittings
-replaced all o-rings
-blew out condenser with compressed air
-tomorrow i will install the new orafice tube
I might also add, i took the old compressor off a few months ago so the system has been sitting open since then until yesterday.
So the only thing occupying the a/c system right now is the 5.4oz of pag oil that came in my new compressor.
I found a chart saying this truck is supposed to take 44oz of r12, and 10oz of mineral oil.
My understanding is that im only supposed to charge to 80% of the r12 capacity, which in my case would be about 35-36oz of r134a.
Do i still put 10 total oz of pag oil in it, or does that capacity need to be adjusted as well? And i can just dump that into the compressor and it will cycle to the other components, yes?
How exactly would i go about charging this system? Ive heard that when doing a retrofit, you should charge only by the low side. Does that mean i am to put 35oz of r134a into the low side only and i should be good? (after adding the 4.6oz of remaining oil of course)
Sorry for the lengthy post, I just want to make sure ive done everything properly so i can hopefully get the system working on Monday.
Any insight? Things ive missed? Recommendations before charging? Im all ears to any opinions or suggestions, i have never worked on an a/c system before so this is all fairly new to me.
So far, I have-
-replaced compressor
-replaced drier
-added retrofit fittings
-replaced all o-rings
-blew out condenser with compressed air
-tomorrow i will install the new orafice tube
I might also add, i took the old compressor off a few months ago so the system has been sitting open since then until yesterday.
So the only thing occupying the a/c system right now is the 5.4oz of pag oil that came in my new compressor.
I found a chart saying this truck is supposed to take 44oz of r12, and 10oz of mineral oil.
My understanding is that im only supposed to charge to 80% of the r12 capacity, which in my case would be about 35-36oz of r134a.
Do i still put 10 total oz of pag oil in it, or does that capacity need to be adjusted as well? And i can just dump that into the compressor and it will cycle to the other components, yes?
How exactly would i go about charging this system? Ive heard that when doing a retrofit, you should charge only by the low side. Does that mean i am to put 35oz of r134a into the low side only and i should be good? (after adding the 4.6oz of remaining oil of course)
Sorry for the lengthy post, I just want to make sure ive done everything properly so i can hopefully get the system working on Monday.
Any insight? Things ive missed? Recommendations before charging? Im all ears to any opinions or suggestions, i have never worked on an a/c system before so this is all fairly new to me.