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Sight glass gasket removal

Ozmat Member Posts: 18
What is the proper way to remove the now rock hard rubber gasket from the nut that the sight glass inserts into. Can I through it my oven on a self clean cycle, stink up the house, make the wife angry, and distort the nuts? Use a propane torch? Soak it in carburetor cleane? Gasoline? Or, is there a better option?


  • ChrisJ
    ChrisJ Member Posts: 15,439
    I don't do this much so I'd bet someone on here has a much easier faster way.

    But, the way I'd go about it is put on some glasses and use the smallest flathead screwdriver you've got and pry / bust them out. They will likely crumble pretty good once you push them far enough.
    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
  • neilc
    neilc Member Posts: 2,663
    nuts are inexpensive,
    nuts, washers, and gaskets,
    known to beat dead horses
    JUGHNE Member Posts: 11,021
    I try to soften them up with WD-40 or such.
    Then I have found that an angled dental pick helps to dig out.
  • Ozmat
    Ozmat Member Posts: 18
    Thanks for the comments. The nuts are only 60 years old and in good shape, so I think I will try to reuse them. I will let you know what happens. Thanks again.
  • Ozmat
    Ozmat Member Posts: 18
    I ended up using a propane torch, gently, to remove the old gasket. Sandblasted the nuts and cleaned them up. Re-installed .
    Thanks again all for the information.
  • STEVEusaPA
    STEVEusaPA Member Posts: 6,506
    I usually start out super gentle, the glass breaks, then it all comes out easy…lol