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Secret Shrader!

Discussion in 'Commercial' started by Zman, Aug 23, 2017.

  1. bknyc

    bknyc New Member

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    I had one just spitting out, i had to quickly put the cap on before i set off any smoke alarms. My manager just told me to pop on a swivel tee and leak check it, which i did. Put my gauges on the tee and made sure i was reading pressure out of the new port and it was all good.
     
    Daryl_Dixon likes this.
  2. Chuck

    Chuck The Other Dude

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    What is it that leaks on them, the threads? I haven't found one spraying yet.

    If you're talking about the schrader core inside leaking, just put a good cap on, unless it is spraying out a lot. Schrader cores were never meant to be a completely leak proof seal, that is the job of the cap, the core is just there to hold the gas back reasonably well until you can put your hose on.

    Although I do hate them, especially on larger systems where I want to pull a fast vacuum and cannot remove the core.
     
  3. crackertech

    crackertech assholiness *

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    Not true the cap is only there to keep crap out dirt ect, not the Freon in.
     
    Last edited: Sep 30, 2017
    Zman and ISOTHERMAL like this.
  4. knave

    knave Undeterred

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    That’s pretty much all that the plastic ones do.
     
  5. Daryl_Dixon

    Daryl_Dixon New Member

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    I've seen those things. Never knew what the hell they were. Maybe on newer Lennox? Can't remember...
     
  6. Daryl_Dixon

    Daryl_Dixon New Member

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    I was taught brass flare caps seal and dust cover and that plastic ones are just a dust cover.

    That being said, I've seen a plastic cap with an oring and leak lock keep a leak at bay for years.
     
  7. knave

    knave Undeterred

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    There’s many pages of argumentation on the subject, at 3channelsdotcom.
     
  8. crackertech

    crackertech assholiness *

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    yes there is
     
  9. bknyc

    bknyc New Member

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    The suction line was full of oil and the cap was in, maybe someone loosened it idk. As soon as i took the cap off it started spitting. And gas pressures were low. I put my core removal tool and tried to play with it until i realized its the threaded looking one that i can never take out. I tried getting my needle nose in there thinking i could get a turn in and it just made it worse.

    Ever had to braze something and you see those pins in? Last time i wrapped the port in wet rags and softly touched up a crack a few inches from it. Thankfully nothing melted or leaked through the pin when i was done.
     
  10. Chuck

    Chuck The Other Dude

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    Not true :D I guess we'll have to disagree on this one
     

    Attached Files:

    Last edited: Oct 2, 2017
  11. Jon

    Jon Team Canada

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    Canada eh!
    :lock: :lachen:
     
    Chuck likes this.
  12. Chuck

    Chuck The Other Dude

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    On second thought, maybe one shouldn't argue with the mods :eek:
     
  13. Jon

    Jon Team Canada

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    7,360
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    Canada eh!
    The mods are a bunch of weenies :D
     
    Texas-Tech likes this.