Page 1 of 2 12 LastLast
Results 1 to 13 of 17

Thread: Leaky Gaskets

  1. #1
    Join Date
    May 2004
    Posts
    1,824

    Hmm

    I have changed out a few large copeland discus compressors in the past couple months. i have been having some trouble getting the new gaskets to seal(the green paper ones). They dont leak bad, just a little white foam when I check with bubble spray. I made sure to clean the surface of both the compressor and the valve where the gasket goes. And I made sure I bolted it on snug. Am I doing something wrong? Any tricks Of the trade I need to know?

  2. #2
    press1 is offline Professional Member BM -bad email address
    Join Date
    Nov 2004
    Posts
    117
    Never-Seez

    Usually used on bolts or motor shafts to prevent sticking. It's graphite based, and will withstand the heat.

    Just smear a very thin coat on the gasket both sides, and tighten the bolts in specific order.

    That's what I do. Anyone else?

  3. #3
    Join Date
    May 2004
    Posts
    1,824
    I thought about trying "leak lock" on the gasket but havnt tried it.

  4. #4
    press1 is offline Professional Member BM -bad email address
    Join Date
    Nov 2004
    Posts
    117
    leak lock...the blue stuff?

    It hardens. Not good for something that is getting hot, then cools down.

    Just a thought.

  5. #5
    Join Date
    Dec 2004
    Location
    Canada
    Posts
    4
    Leak Lock a big NO. Never Sieze does work good, only not too thick. A little dab will do you. I assume you have soaked them in oil first?

    Cheers

  6. #6
    Join Date
    Jun 2001
    Location
    Michigan
    Posts
    12,077
    Torque to spec.

  7. #7
    I carry two things in my bag, never seize and leak lok. I admit, you have to know where to draw the line with using leak-lok ....

    I wont use never seiz on bolts that are to be torqued. I did that one time and a bolt snapped. I over torqued them.
    The neverseiz works so well with droping the friction that you dont know howmuch torque is on your bolts.


    Oooooooops.

    I have not used neverseiz on gaskets, yet. hmmmm?


    Head gaskets? Compressor oil. It dont take much. It's safe, it's cheap, it's handy .....it works!

    And if your wearin' Levi's when you do this deed ... you wont even need a rag to clean up after yourself.

  8. #8
    Join Date
    Jun 2001
    Location
    Michigan
    Posts
    12,077
    Originally posted by Dowadudda
    Torque to spec.
    Oh, sorry. I already said what I said before.

  9. #9
    Join Date
    Dec 2003
    Location
    Location!, Location!
    Posts
    929
    first thing u do- put a light layer of system oil on gasket, put back in bag, then start disassembly, etc. When you are ready, so is gasket-never had 1 leak yet(*knockwood*)

  10. #10
    Join Date
    Dec 2004
    Posts
    34
    Never ever use leak lock on a gasket, the best product out there for gasket sealant is made by Refrigeration Technologies and is called "Nylog".

    It is available in CFC-HCFC and HFC applications and works great.

    Information on it is at http://www.refrigtech.com under products



    Happy New Year

    Gord
    Be Careful, The Toes You Step On Today May Be Conected To The A$$ You Have To Kiss Tomorrow.

  11. #11
    Join Date
    Jun 2001
    Location
    Michigan
    Posts
    12,077
    Do not put anything on a valve plate other than the valve plate, the gasket and the bolts. Period. End of story.

    If people would do the job by doing properly with bolt tourques and coating the gasket with oil for a few minutes you won't have leaks. If it still leaks that plate is out of tolerance.

    Now all of a sudden you got a problem with a valve plate leaking. And after about 300 I have done, not one has had trouble.

  12. #12
    Join Date
    Feb 2003
    Location
    NH & Cebu
    Posts
    1,608
    In 23 years, I've never had a new gasket leak. Even the gaskets I've had to make from gasket material in a pinch, never leaked. Like others said, you need to coat them liberally w/oil.

  13. #13
    Join Date
    Dec 2004
    Posts
    34
    I should have stated that any sealant is a last resort as there should not be any leakage on properly installed gaskets.
    Be Careful, The Toes You Step On Today May Be Conected To The A$$ You Have To Kiss Tomorrow.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event