AC/R134A Question

[CrewCabDiesel]

After building a new Crew Cab, I need to know how much oil to put back in the AC system. I have replaced the condensor and the receiver/dryer due to the "accident". The AC system did not leak after impact, but because of the damage to the condensor I replaced it. So does anyone know how much oil to add to a R134 AC system that has had those two parts replaced ? I will be evacuating the system for about 90 minutes before charging with R134 A.

Kyle

 

[Dfeland]

If you did not drain the compressor it should not really need anymore oil. If that was an R-12 system that you are converting to 134 be sure and DO NOT put the synthetic oil in your system because it will mix with the mineral oil and form a hard gel and will plug the expansion valve. If it was an existing 134 system and you real want to add some oil I would just through in a oz. and call it good because you really should not have lost very much if any. If in doubt call a local auto compressor reman place and ask them.