The system just won't be as efficient at cooling as it could be. This time of year, that isn't that much of an issue..... come summer... see what ya think.

 

I usually pull a full vacuum, then without the engine running, put in the oil. There is enough vacuum that it will take that can. As soon as pressure equalizes, I crank engine and turn on compressor to make sure it pulls the remaining oil from can, then valve off and swith to a can of refrigerant.

 

ok i am changing the a/c compressor beside my a/c clutch quit working right now i have the a/c compressor bypassed so i went out and got a new compressor and it says to add oil to compressor same as what came out of old compressor i dont know how much the old one had because i could turn the clutch to pump out oil. so i go to the part store were i buy the compressor from and ask how much oil my system holds and they say 6.2oz and give me a 8oz bottle and said to measure out 6.2 and put in compressor and to turn the compressor over a few times after i connect everything. i havent started the truck yet and also the system is still bypassed at the moment so if this isnt right please say so. so i can fix it before its to late? Thanks in advance for the help

 

I use the oil in a pressurized can. If you pour oil in the compressor you still have to close it up and vacuum. I usually draw vacuum and let set for several hours to make sure I don't have a leak. Then I start to charge. The clutch will not engage until it has adequate pressure in system.

 

how far in the - should the vacuum be

 

I pull it as low as I can get it and let it run for 45 minutes to an hour. You cannot get too much if you are using an AC vacuum pump.

When done, valve off and let it set a while to make sure there are no leaks.

 

does it matter which way i rotate the a/c clutch when i have it installed

 

Yes. Look at diagram under hood for correct rotation. Some compressors have an arrow cast or stamped on body. But it may not be visible...

 

does anyone have a idea how to get a fitting off it is isn't coming off with the tool nor is it coming off with the tool and pb blaster. i am talking about the quick connect fittings on the accumulator

 

Hit it with chems, insert the tool, push the line IN, and move the tool around a bit, while pushing it in as well. Then the line should just pull straight out.