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How to measure oil in the AC system?

autowize on Sun April 18, 2010 5:08 AM User is offline

If I Recover Refrigerant from the Air Condition system And I don't get oil from the oil drain bottle does it mean the oil is low in the system?

Chick on Sun April 18, 2010 5:47 AM User is offlineView users profile

No, recovering refrigerant doesn't always remove oil, other that what is suspended in the refrigerant.. The only way to know if you are low on oil is to flush the system, change the drier and add back the system amount..otherwise if none is removed you can add a half to an ounce back (one time) to put your mind at ease... also anytime you change the drier/accumulator, you always add back the amount that the part held...

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

autowize on Sun April 18, 2010 8:05 AM User is offline

A lot of three year old Cars are coming in with compressor lock-up. Does this tool work part # MT1410? From santech refrigerant oil tester. I had a bad experience with a car. It came in with a bad Compressor clutch. I recover the Refrigerant. No oil came out I was happy oil was save. replace coil Recharge the system three days later car came back with a lock-up compressor. Now i want a way to measuring the oil.

Chick on Sun April 18, 2010 8:25 AM User is offlineView users profile

In a case like that, I would recommend a full system flush, who knows what was put in, and there could be debris in the system, clogged condenser etc, not enough oil etc..On that car, it's a start from scratch scenario.. and of course, the drier, drain and look at it, smell the oil, sometimes you can smell residual flush, and if it's not clear, has a color like brown, it's no good and will keep killing compressors.. lets face it, you can't guess with Ac systems....

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

HECAT on Sun April 18, 2010 8:43 AM User is offline

I could not find anything on the oil test kit you referenced; but the only test kits I am aware of have come from the HVAC world, and they only indicate the presence of moisture and acids. There is no way to measure the quantity or verify the quality of the refrigerant oil inside an operating system, it must be removed (flushed); and only then can the quantity and quality can be verified by the installation of a fresh load.

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HECAT: www.hecatinc.com You support the Forum when you consider www.ackits.com for your a/c parts.

FLUSHING TECHNICAL PAPER vs2.pdf 

autowize on Sun April 18, 2010 9:01 AM User is offline

Also the Receiver Drier was Bad this is what I fine out after disassembling the AC. how often should I change driers?

autowize on Sun April 18, 2010 9:13 AM User is offline

I was just thinking of the good Flush tool all late model cars have very small tube in the Condenser just flush a Nissan Pathfinder and am still shaking

autowize on Sun April 18, 2010 9:16 AM User is offline

Hecat. Can you make it simple for me I need a good Flush tool.

NickD on Sun April 18, 2010 10:55 PM User is offline

Quote
Also the Receiver Drier was Bad this is what I fine out after disassembling the AC. how often should I change driers?

No vehicle was mention, an R-134a conversion?

One thing about dealing with ground passenger type vehicles, they don't require a maintenance log book like they do in aviation. You have no idea what or who played with this thing before you got your hands in it. Plus, the market is loaded with plenty of BS crap.

So, do you have to eat that seized compressor?

HECAT on Mon April 19, 2010 6:06 AM User is offline

Quote
Originally posted by: autowize
Hecat. Can you make it simple for me I need a good Flush tool.

This one is the most inexpensive DIY type flushing tool we offer. The patented pulsating method is effective on the smaller parallel paths of todays heat exchangers (watch the video in the link).

We also make more professional "Pulsating" flushers (models: FAC-200, FAC-300, & FAC-400) that use adapters to connect, which provides for a cleaner, faster, and more efficient flush and air purge process. Refrigerant flushing (model: H1000) is something we also do. All these models can be seen Here

How often should you change dryers? A good practice is to always replace the desiccant filter, whenever the system is opened to atmosphere.

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HECAT: www.hecatinc.com You support the Forum when you consider www.ackits.com for your a/c parts.

FLUSHING TECHNICAL PAPER vs2.pdf 

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