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  #16  
Old 12-17-2003, 08:54 AM
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Join Date: Jan 2003
Location: Matthews, NC
Posts: 1,356
Larry,
First, you are exactly right with your responses. However, when I reread my response about the amount of oil, i made the mistake made by everyone at some time in their lives. I answered a question based on what someone else said. I still contend that 2 oz too much will not hurt anything. 5 oz can. What I was saying was that if 2 oz too much was added, thats OK. I now realize that the 5 oz was a recommendation SOMEONE ELSE made and was not the correct amount for this system. Also, the question I answered about "low, high, or both" refered to evacuating the system, not recharging it.

I'll try to do better in the future.
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84 500 SEL (307,xxx miles)
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  #17  
Old 12-17-2003, 09:49 AM
LarryBible
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Indeed if it only has 2 oz. too much you will probably be okay. The problem is that adding oil to a system is always guesswork. You really don't know how much has been lost.

The ONLY way you ever know is to flush totally, put in the right amount and recharge. This is rarely done unless the situation warrants it such as conversion or getting incorrect oil out of the system.

I'm still very worried if this is 2 oz. of Ester in a Mineral oil, R12 system.

Best of luck,
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  #18  
Old 12-17-2003, 10:39 AM
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Join Date: Dec 2000
Location: Fairfax County, Virginia
Posts: 856
I am learning a lot ...

In summary, I drained maybe two ounces out of my compressor (likely some still in the compressor?) ... first time the system had been opened (1991 350 SDL) ... I added 4 ounces of the esther oil, sealed, evacuated and recharged.

What is your best guess of how much I am "over" where should be?

Will the pressure switch or some other mechanism cause the clutch to disengage with too much oil? i.e. will compressor "pressure lock" or anything to provide a warning that something is wrong or will it run well for "x amount of time" and then blow seals, etc?

BTW, I rechecked with the folks at ackits (ackits.com ... same sort of site as this one) and they reconfirmed they pretty much try and use this oil, it mixes with no issues, etc. Tried to get'em to lean the other way, but they sounded convinced. Not saying they're right, just that they are convinced.

Thanks, again!
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George Stephenson
1991 350 SDL (200K and she ain't bent, yet)
former 2002 E320 4Matic Wagon - good car
former 1985 300 CD - great car
former 1981 300 TD - good car
former 1972 280 SEL - not so good car
a couple of those diesel Rabbits ...40-45 mpg
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