Automotive Air Conditioning Information Forum (Archives)

yorled on Sun October 20, 2013 4:01 PM

Year: 1997
Make: Toyota
Model: Corolla
Engine Size: 1600
Refrigerant Type: 134A
Ambient Temp: 32 C
Pressure Low: N/A
Pressure High: N/A
Country of Origin: Japan

My AC was not cooling properly, so I went to check on system pressure by way of using an object to press the valve on the suction line and found oil squirting in my face. I thought to myself that this shouldn't be;and that,there may be too much oil in the line /system.
I disassembled all the AC tubing which are located in the engine compartment. I then blew out each tube individually by way of blowing in each (tube). Which was attached to a "used" fridge motor,with the help of a few hoses;The motor is used as an air pump.

After blowing out each tube and condenser,I was only able to collect 1/4 ounce of oil. I then weigh 1/2 ounce of oil and put it in the AC motor,I then found the oil overflowing from the motor which was still on the car.
I took out back half of the oil which i put in and noticed the level of oil in the motor was visible.

My problem is this: Is there too much oil in the motor and could there be any significant amount of oil in the condenser or tubing after all this blowing out?

PS I did not take the motor off at any time to check for the amount of oil in the motor.

Dougflas on Sun October 20, 2013 4:55 PM

Now you do not know how much oil is in the system. You should disassemble the system and properly flush everything except the compressor. Remove the compressor and drain the oil. Then replace the drier or accumulator and place the proper amount of oil in the system. Then properly evacuate the system and recharge by weight.

webbch on Sun October 20, 2013 10:45 PM

Best thing to do at this point is study up on the operation of an automotive A/C system before proceeding. You will learn that there is no way to know how much oil is in the system other than by flushing everything out and adding back a known quantity. You currently have 54 posts to your name and still don't recognize how critical a simple A/C gauge set is for checking system pressures?? What you did is called "venting the refrigerant" and is illegal in the USA.

Edited: Sun October 20, 2013 at 10:49 PM by webbch

Jag987 on Sun October 20, 2013 10:51 PM

Quote
Originally posted by: webbch
You currently have 54 posts to your name and still don't recognize how critical a simple A/C gauge set is??


That made me laugh. not trying to be mean, but when I started doing A/C work, the first thing I bought was a set of gauges. Was not a very expensive set, less than $100, but they work and are accurate.


-------------------------
I bought a can of 134a at w**-mart that had a stop leak, oil, and dye in it. It also had a hose and a gauge, so now I'm an AC pro!