2G Should I add oil to AC compressor?

[CarlosFley]

Hey guys, my car came with most of the AC components installed but the lines were not connected, and belt was missing. I’ve replaced all the o-rings, the dryer, and a bad schrader valve, as well as vacuum tested the system and it holds a vacuum. My question now as I’m getting ready to finally charge it for the first time, should I add PAG46 oil? I know adding too much oil will create problems but I also don’t wanna potentially ruin anything from lack of lubrication. Is there a way to know how much oil is in the system safely? Any input helps, thanks guys

 

[CarlosFley]

I guess I should clarify it’s a 1997 GSX, 6 bolt motor but 7 bolt compressor

 

[Turbski91]

Hey guys, my car came with most of the AC components installed but the lines were not connected, and belt was missing. I’ve replaced all the o-rings, the dryer, and a bad schrader valve, as well as vacuum tested the system and it holds a vacuum. My question now as I’m getting ready to finally charge it for the first time, should I add PAG46 oil? I know adding too much oil will create problems but I also don’t wanna potentially ruin anything from lack of lubrication. Is there a way to know how much oil is in the system safely? Any input helps, thanks guys

The only way to know for sure is to take the compressor off and drain it completely then flush out the condenser, evaporator, and lines. Even though AC machines have the ability to remove oil it never gets all the oil so it’s still going to be guess work unless you flush the system, and add the correct amount of oil for the entire system.

 

[CarlosFley]

The only way to know for sure is to take the compressor off and drain it completely then flush out the condenser, evaporator, and lines. Even though AC machines have the ability to remove oil it never gets all the oil so it’s still going to be guess work unless you flush the system, and add the correct amount of oil for the entire system.

Yeah after talking to @CrackedDSM I think I’ll at the very least remove the compressor to flush it and oil it, won’t be flushing the condenser but I likely will the evaporator

 

[Turbski91]

Yeah after talking to @CrackedDSM I think I’ll at the very least remove the compressor to flush it and oil it, won’t be flushing the condenser but I likely will the evaporator

Is the condenser new? If it was me i would just replace it now since you’re going through all of that work and the system is empty.

 

[CarlosFley]

Is the condenser new? If it was me i would just replace it now since you’re going through all of that work and the system is empty.

It isn’t :/ I’ve just been throwing money at this car so I didn’t wanna have to buy a condenser as well

 

[Turbski91]

It isn’t :/ I’ve just been throwing money at this car so I didn’t wanna have to buy a condenser as well

I feel you there. Then send it! goodluck!

 

[CarlosFley]

I feel you there. Then send it! goodluck!

I see some people talking about replacing the expansion valve however, you think that’s a must?