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Best ND 11 alternative for AC compressor oil?

Discussion in 'Gen 2 Prius Technical Discussion' started by Banksy, Apr 23, 2020.

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  1. Banksy

    Banksy Active Member

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    So I've searched the threads on here about this and am curious what is the current best option.

    I'm replacing my compressor this week and the last thing I need is oil.

    I called toyota and they wanted like 250 dollars for a qt of it. That's not going to happen.

    Ideally I'd like something I can put into the compressor before it's in the car. I have a full set of manifold gauges and a vacuum pump to pull a vacuum too. However I don't think I can add oil into the compressor without buying something else for my gauges and I really don't wanna do that.
     
    #1 Banksy, Apr 23, 2020
  2. Mendel Leisk

    Mendel Leisk Senior Member

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    I got a purge and fill at dealership for $150 plus sales tax (CDN). Maybe just install the compressor and let them do the charging?
     
    #2 Mendel Leisk, Apr 23, 2020
  3. Banksy

    Banksy Active Member

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    I spent 50 bucks on the compressor. I don't want to spend triple that on a charge.

    Plus I just spent like 100 bucks on this vacuum kit and I want to use my cool new tool :sneaky:
     
    #3 Banksy, Apr 23, 2020
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  4. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    What about the gauges?

    You should never use a gauge set that has previously been exposed to PAG oil on a Prius. One gauge set for cars with electric compressors, another for cars with belt-drive.

    That said I don't think you're going to find a substitute for ND-11, but you can probably find a cheaper source without a Toyota part number.
     
    #4 Leadfoot J. McCoalroller, Apr 23, 2020
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  5. Banksy

    Banksy Active Member

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    Gauges are literally brand new

    Haven't even been removed from the plastic yet haha
     
    #5 Banksy, Apr 23, 2020
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  6. TMR-JWAP

    TMR-JWAP Senior Member

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    I may have missed this in an earlier post, but why are you replacing the AC compressor?
     
    #6 TMR-JWAP, Apr 23, 2020
  7. Banksy

    Banksy Active Member

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    Ac won't get cold

    Tested the system and it holds pressure so I'm thinking it's the compressor
     
    #7 Banksy, Apr 23, 2020
  8. ChapmanF

    ChapmanF Senior Member

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    If you tell Techstream to run the compressor various speeds, what speeds does it run? What pressures are you seeing when the system operates? What does Techstream say about the pressure switch status, etc?
     
    #8 ChapmanF, Apr 23, 2020
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  9. Mendel Leisk

    Mendel Leisk Senior Member

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    #9 Mendel Leisk, Apr 23, 2020
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  10. Banksy

    Banksy Active Member

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    I keep forgetting techstream can do stuff like this :cry::cry:
     
    #10 Banksy, Apr 23, 2020
  11. TMR-JWAP

    TMR-JWAP Senior Member

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    One thing you may want to check is whether the inverter is sending power to the compressor.
     
    #11 TMR-JWAP, Apr 23, 2020
  12. ChapmanF

    ChapmanF Senior Member

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    In Gen 2 the inverter contains the variable-frequency drive for the compressor, so it will only be sending power when it has been instructed to run the compressor, and the power will be AC, at a variable frequency.
     
    #12 ChapmanF, Apr 23, 2020
  13. sam spade 2

    sam spade 2 Senior Member

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    Good luck with that.
    Guessing at the cause of a problem often turns out bad.
    Finding the necessary oil might turn out to be the least of your worries.
    Have you removed the old compressor yet ?
     
    #13 sam spade 2, Apr 23, 2020
  14. Banksy

    Banksy Active Member

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    Nope

    Plan to run techstream on it tomorrow

    Will keep this post updated
     
    #14 Banksy, Apr 23, 2020
  15. Banksy

    Banksy Active Member

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    So I hooked up techstream

    Apparently the compressor is working

    It's only reaching about 6200 rpms

    Apparently techstream says it should be 7200-8400 or something like that?
     
    #15 Banksy, Apr 26, 2020
  16. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    It's capable of a wide range of speeds. You need to make sure it has been asked to run faster than 6200 before condemning it for not running faster than 6200.
     
    #16 Leadfoot J. McCoalroller, Apr 26, 2020
  17. Banksy

    Banksy Active Member

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    Ok... Well if it's not the compressor... And the system is holding pressure... What is it then
     
    #17 Banksy, Apr 26, 2020
  18. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    "pressure" is pretty vague. These systems are ultra-precise. If your charge level is off (high or low) by a half ounce you could lose 20% of your capability.

    By far the best way is to zero it out, vacuum it hard, and then fill it with the supply vessel on a very accurate scale so you can count off exactly how much has been added.

    Yes this does assume a good compressor, and I don't think yours is fully proven in or out yet.
     
    #18 Leadfoot J. McCoalroller, Apr 26, 2020
  19. Banksy

    Banksy Active Member

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    I tested the compressor

    Got it up to around 7500 rpm

    I don't feel any cold air still

    Checked the psi before hand and it was holding at like 45-50

    Here are some photos of my manifold gauges if thatbhelps
     

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    #19 Banksy, May 1, 2020
  20. 05PreeUs

    05PreeUs Senior Member

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    AC on a Hybrid or EV is NOT something to be trifled with! The oils used in them are specifically non-conductive, those in wider use do nt meet that standard.

    The oil needed is WIDELY available in the marketplace, but unless you know what you are doing, adding or removing AC oil from the system generally leads to more problems than were initially present.

    Do some get lucky? Yup, but it is a BIG risk.
     
    #20 05PreeUs, May 2, 2020
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