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Thread: Vacuum with coremax

  1. #1
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    Vacuum with coremax

    With all of this info on proper vacuum pulling what do people use when there is a coremax fitting? Does anyone put new service ports? I usually pull Schraders if available for using the vacuum hoses

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  3. #2
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    Coremax is already a high flow port. No need to pull. And can't pull and pull vacuum anyways.

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  5. #3
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    It has been recommended to use core depressor tools, to insure the core is fully open, and the C.D.T has much less restriction to flow than the depressors in the end of a hose.

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  7. #4
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    I've also been searching for what others have figured out on this problem. Any suggestions on vacuum rated core depressors? There's plenty of vacuum rated core remover tools but the other I'm struggling with...

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    If you're pulling a vacuum my only question is why didn't you cut them out and braze in some schraders?
    "Is this before or after you fired the parts cannon at it?" - senior tech
    I'm tired of these mediocre "semi flammable" refrigerants. If we're going to do it let's do it right.
    Unless we change direction we are likely to end up where we are going.
    "It's not new, it's better than new!" Maru.

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  10. #6
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    Quote Originally Posted by R600a View Post
    If you're pulling a vacuum my only question is why didn't you cut them out and braze in some schraders?
    If you are going to why a shraider and just go for it like ⅜ or ˝ service valve? I'd probably just use a core depressor and vacuum hoses.

  11. #7
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    Quote Originally Posted by R600a View Post
    If you're pulling a vacuum my only question is why didn't you cut them out and braze in some schraders?
    Not every situation allows for time or the option to do this. That said, that wasn't my question... 😂

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  13. #8
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    Quote Originally Posted by griffon26 View Post
    I've also been searching for what others have figured out on this problem. Any suggestions on vacuum rated core depressors? There's plenty of vacuum rated core remover tools but the other I'm struggling with...
    I’ve used the Accutools Depressors, from TrueTechTools, for years and haven’t had any issues with pulling quick vacuums thru core max fittings.


    Sent from my iPhone using Tapatalk

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  15. #9
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    Quote Originally Posted by dcipherrva View Post
    I’ve used the Accutools Depressors, from TrueTechTools, for years and haven’t had any issues with pulling quick vacuums thru core max fittings.


    Sent from my iPhone using Tapatalk
    They make a darn good core depressor.
    I had one but I gave it to my boss's son because I'm afraid he's going to lose a hand from frostbite one of these days.
    "Is this before or after you fired the parts cannon at it?" - senior tech
    I'm tired of these mediocre "semi flammable" refrigerants. If we're going to do it let's do it right.
    Unless we change direction we are likely to end up where we are going.
    "It's not new, it's better than new!" Maru.

  16. #10
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    Quote Originally Posted by dcipherrva View Post
    I’ve used the Accutools Depressors, from TrueTechTools, for years and haven’t had any issues with pulling quick vacuums thru core max fittings.


    Sent from my iPhone using Tapatalk
    Thank you!

  17. #11
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    I don’t understand why these valve core tools are $400-$600! Really?
    "The only true wisdom is in knowing you know nothing" Socrates

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  19. #12
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    Quote Originally Posted by mgenius33 View Post
    I don’t understand why these valve core tools are $400-$600! Really?
    Seriously. That's more than my oxy acetylene rig which I use to replace them.
    "Is this before or after you fired the parts cannon at it?" - senior tech
    I'm tired of these mediocre "semi flammable" refrigerants. If we're going to do it let's do it right.
    Unless we change direction we are likely to end up where we are going.
    "It's not new, it's better than new!" Maru.

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