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Can 6oz oil a new AC compressor hydrolock it?

This is a discussion on Can 6oz oil a new AC compressor hydrolock it? within the General Help forums, part of the LSx Technical Help Section category; Long story short I replaced my entire ac system with all new, dry parts and ended up putting ~6oz pag ...

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    Junior Member RebelExtrm02's Avatar
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    Question Can 6oz oil a new AC compressor hydrolock it?

    Long story short I replaced my entire ac system with all new, dry parts and ended up putting ~6oz pag 150 in the compressor (until oil started coming out of the discharge port when I was spinning it by hand) and an ounce in each of the other parts (evaporator, accumulator, condensor) to get a total system capacity of 9oz.

    After doing some reading everyone says to put 2oz in the compressor. Am I at risk of hydrolocking my compressor when I go to have it vacuumed and charged because I have too much in it? Should I take it off and drain it and put only 2oz in it then put the rest in the other compenents to get back up to 9oz total system capacity?

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    Electrical Engineer KMdef9's Avatar
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    To be honest, I know very little about the AC system, so I don't know if you'll hydrolock it.

    However, if you've exceeded the recommend amount by 3 fold, I'd drain it and fill up to specs.

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    Former Mopar Man 2002ssslp's Avatar
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    That amount of oil will not hydrolock you compressor but it may effect the cooling level. The compressor will purge what it does not need but that will take up room meant for refrigerant. A/C compressors are usually killed by a lack of refrigerant oil not too much.
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    Spaz is My Mentor SMWS6TA's Avatar
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    After assembly did you evap the system?

    I ask because no matter how well you try to keep moisture out of the system it will still have some in it (the air). Evaping the system removes ALL moisture as well as any residue oil/freon.

    You should only use the amount your system calls for. In a vacuum liquids react differently. Oil & freon vaporize while moisture boils causing damage to compressor.

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    Junior Member RebelExtrm02's Avatar
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    Quote Originally Posted by SMWS6TA View Post
    After assembly did you evap the system?

    I ask because no matter how well you try to keep moisture out of the system it will still have some in it (the air). Evaping the system removes ALL moisture as well as any residue oil/freon.

    You should only use the amount your system calls for. In a vacuum liquids react differently. Oil & freon vaporize while moisture boils causing damage to compressor.
    Yes I vacuumed it down. I'm taking it to a ac shop to have them vacuum it down better, check for leaks, and charge it.

    The total amount of oil in the system is spot on, it's just currently more concentrated in the compressor.

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    What was your total oil you had in the compressor and was there ever any issue?

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