Typically, though, refrigerant is measured in ounces of weight while the oil is measured in fluid ounces. Myself: I've always added refrigerant oil by volume as well, using a plastic graduated cylinder. It's graduated in ml, so about 25 to 30ml for an ounce of refrigerant oil. I do have an electron...

Not a ton of difference between oz. in weight and fluid oz.

1 fluid oz. is like 29.6 ml

1 oz. weight, USA is 28.4 grams, or like 28.4 ml if water.

There is a plastic insert on the small port side that doesn't seem removable, could I spray right through this? (and capture the output with a hose on the big port to a bucket). Could that plastic insert be an orifice tube or some replaceable screen? Ya' got good pictures of that you can upload? An...

balmfort wrote:PS - i have pictures but I cant seem to upload to this site. Messages says every file is too large, even if its only 395Kb?

Upload your photos to free service like Imgur.com, then copy/paste in the link. I'm a computer-idiot, and I can do it.

I seem to read that you bought a new compressor (among other stuff) but then bought another new compressor because you didn't trust the first one?

Were both compressors brand new, and the same part number/brand???

Two of my co-workers had early 1980s Accords in Phoenix and their AC was very good, very cold.

The compressor clutch engages and disengages normally, no problems there, and pressures on the system look great (40 low, 205 high, 85 degrees ambient). The low side line is extremely cold to the touch (not freezing, but very cold) and the high side is hot. I'm wondering if warm or heated air is ge...

And adding refrigerant to meet certain pressures is not the recommended way to get correct refrigerant charge: charging BY WEIGHT is.

Go to a certified independent mechanic.

Check for AC clutch slippage when the clutch gets hot.

I adjusted my own AC clutch gap last summer to fix a similar issue, removed a thin shim/spacer.

And the compressor does not click on. I checked for power to the clutch with a multimeter and it was doing something. I’ll have to check it again to see if it’s getting enough juice. So there’s my problem. Any ideas? You're measuring the static pressure because the AC clutch is not engaging. Turn o...