AC Oil Quantity - '93 Del Sol S
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AC Oil Quantity - '93 Del Sol S
Hello all -
My daughters AC wasn't working (hadn't since she bought the car two years ago) I pulled a vac on the system and it held nicely, so.... I took the compressor out and drained the oil (no particles or metal seen) I also replaced the drier. Specs say to replace 5oz of oil in the system. I put about 1/4 oz into the drier when I installed it and then began to fill the compressor. I put it into the high side port of the compressor but only got 3oz in before it topped off. My questions are: Is the correct amount 5oz? (i'm using a 5ml syringe) and if so, do I continue to fill the 5 oz into the low side of the compressor? Did I not drain all of the old oil? I tipped, rolled, shook and just short of squeezed the compressor to get the old oil out. Any insight to this. Thanks.
Sincerely,
Base ----
My daughters AC wasn't working (hadn't since she bought the car two years ago) I pulled a vac on the system and it held nicely, so.... I took the compressor out and drained the oil (no particles or metal seen) I also replaced the drier. Specs say to replace 5oz of oil in the system. I put about 1/4 oz into the drier when I installed it and then began to fill the compressor. I put it into the high side port of the compressor but only got 3oz in before it topped off. My questions are: Is the correct amount 5oz? (i'm using a 5ml syringe) and if so, do I continue to fill the 5 oz into the low side of the compressor? Did I not drain all of the old oil? I tipped, rolled, shook and just short of squeezed the compressor to get the old oil out. Any insight to this. Thanks.
Sincerely,
Base ----
Last edited by Baseline11; Oct 25, 2017 at 05:49 PM. Reason: No 83 del sol
Re: AC Oil Quantity - '93 Del Sol S
So my impression of your story is that you are re-using the old compressor, and simply replacing the drier. If so, all you would have done was add the small amount required for a new drier and you are done.
If you wanted to change the oil in the compressor, you should have drained all the old oil into a measuring container. Then added that same measured amount of new oil back into the compressor and you are done (not a full 5oz).
The 5oz figure is the total system oil volume. A brand new compressor contains this 5oz of oil....the idea being that 5oz is then distributed throughout a completely empty system upon startup. When you took apart your system, your used compressor only contained a portion of that 5oz. If you want a completely fresh 5oz of oil in the system, you need to disassemble and flush the entire AC system, and replace the condenser (which cannot be flushed)
If you wanted to change the oil in the compressor, you should have drained all the old oil into a measuring container. Then added that same measured amount of new oil back into the compressor and you are done (not a full 5oz).
The 5oz figure is the total system oil volume. A brand new compressor contains this 5oz of oil....the idea being that 5oz is then distributed throughout a completely empty system upon startup. When you took apart your system, your used compressor only contained a portion of that 5oz. If you want a completely fresh 5oz of oil in the system, you need to disassemble and flush the entire AC system, and replace the condenser (which cannot be flushed)
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Re: AC Oil Quantity - '93 Del Sol S
Yes, exactly what 94eg said. 5 oz is assuming you start with every single part new or flushed and dried to bare metal. There is quite a bit of oil in the other parts already.
Too much oil will really hurt the cooling performance.
Too late for this now, but if you find the pressure is zero when first checking a car A/C system, some effort should be made to find the leak before taking anything apart.
Too much oil will really hurt the cooling performance.
Too late for this now, but if you find the pressure is zero when first checking a car A/C system, some effort should be made to find the leak before taking anything apart.
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