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freeze plugs and sealer???

Discussion in 'The Hokey Ass Message Board' started by Dan, Mar 11, 2010.

  1. Dan
    Joined:
    Mar 13, 2001
    Posts:
    2,071
    Location:
    Miles City, MT

    Dan Member

    Everything you read says to use sealer when installing freeze plugs, what sealer do you use??? I've always just installed them dry???
  2. Dreddybear
    Joined:
    Mar 31, 2007
    Posts:
    5,646
    Location:
    AUSTIN TEXAS

    Dreddybear Member

    Indian Head. two bucks at any parts store, its a molasses brownish black :)
  3. chopped51
    Joined:
    Jan 7, 2009
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    2,462
    Location:
    British Columbia (Just outside Vancouver)

    chopped51 Member

    I've never used sealer. Never had one leak. I guess it couldn't hurt though.
  4. call some local engine builders and go with their answers. i have seen blocks that were cracked in freeze plug area because they were installed using permatex. i use silicone and haven't had any issues.
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  5. Jims35
    Joined:
    Dec 22, 2009
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    275
    Location:
    Parma Idaho

    Jims35 Member

    Never use sealer , never had one leak . Just make sure they are the correct ones and not undersize.
  6. el Scotto
    Joined:
    Mar 3, 2004
    Posts:
    3,363
    Location:
    Stinky McWindyville, CA

    el Scotto Member

    I'm with the "nothing on the freezeplug when I install them" crowd... probably couldn't hurt 'em, but I've never done it before and never had a problem...
  7. Country Gent
    Joined:
    Feb 22, 2010
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    564
    Location:
    FLA. - TENN.

    Country Gent BANNED

    Permatex NON-HARDNING. Old reliable. Never had a problem. Helps them install a little easier.
  8. Mr48chev
    Joined:
    Dec 28, 2007
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    Location:
    Yakima Valley, WA

    Mr48chev
    ALLIANCE MEMBER

    That's what I have used for 45 years and never had a problem.
  9. bobss396
    Joined:
    Aug 27, 2008
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    Location:
    Long Island, NY

    bobss396 Member

    Indian Head or the Permatex product mentioned here are both fine. I'll use whatever one I find first, just count myself lucky to find anything in my garage.

    Bob
  10. RopeSeals???
    Joined:
    Jul 2, 2007
    Posts:
    443
    Location:
    Out west!!!

    RopeSeals??? Member

    Aviation Permatex
  11. DerKafer
    Joined:
    Mar 27, 2006
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    Location:
    San Diego

    DerKafer Member

    Another vote for doing it dry.
  12. TagMan
    Joined:
    Dec 12, 2002
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    Location:
    Rochester, New York, USA

    TagMan
    ALLIANCE MEMBER



    Me, too.

    ......and they're NOT "freeze plugs" for the 5,486,905th time. They're "CORE PLUGS", used to fill the holes used during the casting process. That's all they were designed to do - they were not meant to pop out and prevent the block from cracking because somebody forgot to add antifreeze. I've seen cracked blocks with popped out core plugs and the plugs didn't save those blocks.
  13. VegasBruce
    Joined:
    Oct 1, 2006
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    120
    Location:
    Sin City, NV/Prison City, TX

    VegasBruce Member

    Dry or a little Gasgacinch.
  14. Dino
    Joined:
    Oct 22, 2002
    Posts:
    218
    Location:
    Jacksonville, FL

    Dino Member

    I use brass plugs and The Right Stuff.
  15. 29nash
    Joined:
    Nov 6, 2008
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    4,547
    Location:
    colorado

    29nash BANNED

    I have used a dab of paint in the distant past when installing a welch/freeze plug. Since somebody invented loctite and it's more readily available in my tool box thats what I use. A good friend of mine don't use anything, just spits on them and drives them.:D

    What are they called? Real mechanics don't argue about the small shit.
  16. rjaustin421
    Joined:
    May 1, 2009
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    Location:
    Jacksonville FL

    rjaustin421
    ALLIANCE MEMBER

    I have installed probably 5,000 (not an exaggeration!!!) and have always put a light coating of silicone on them/
  17. gtnrkix
    Joined:
    Jan 29, 2005
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    Location:
    wis-CON-sin

    gtnrkix Member

    I like it dry!
  18. ponchopowerd
    Joined:
    Feb 20, 2010
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    Location:
    northern cal

    ponchopowerd Member

    leve it dry or if u ant to use a sealer ive used gray rtv
  19. johnnie
    Joined:
    Jan 7, 2009
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    494
    Location:
    indiana

    johnnie Member

    Been using loctite ever since I was taught to do it at a engine re-builder company. Never put anything on them before and never had a problem. I would call using it "insurance".
  20. GARY T.
    Joined:
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    Location:
    S.W. Pa

    GARY T.
    ALLIANCE MEMBER

    Use brass ones--NAPA has them--if not boat shop---don't need any sealer
  21. Hackerbilt
    Joined:
    Aug 13, 2001
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    5,460
    Location:
    St.Johns,Nfld,Canada

    Hackerbilt Member

    I've always put a dab of paint on them.
    Not spray bomb, but right out of the quart can.
    A bit of paint will also protect them a little longer from rust, so its all good!
  22. Pooch
    Joined:
    Apr 11, 2006
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    Oklahoma

    Pooch
    ALLIANCE MEMBER

    Dry...never had a problem.
  23. Domino
    Joined:
    Jul 2, 2009
    Posts:
    478
    Location:
    Florence, AL

    Domino Member

    I have installed them both ways and never had a problem. Lately I use the gasket shellac that smells horrible. I do always use the brass plugs when I can find them.
  24. 56oldsDarrin
    Joined:
    May 9, 2009
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    396
    Location:
    Lewiston ID

    56oldsDarrin Member

    that purple stringy stiff that comes in the little round can...that stuff.
  25. 57JoeFoMoPar
    Joined:
    Sep 14, 2004
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    3,424
    Location:
    Union, NJ

    57JoeFoMoPar Member

    Add another one. It would probably be fine for me dry, but for $2 why take the chance?
  26. tommy
    Joined:
    Mar 3, 2001
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    14,643
    Location:
    Davidsonville, Md.

    tommy Member

    [​IMG]

    I guess it all depends on what you are working on. This is a Studebaker that takes the domed washer like kind. Yeah I wire brushed 'em but the sealing surface still wasn't perfect. I used silicone for the imperfections. Unless it's a macho thing I don't see why a little sealer is a bad idea. It's like insurance to me. I'm a wuss I use sealer.:D I had one pop out when I first got it running. I wasn't sure how much hammering was required to expand the disk. I put it back in and and gave it a good whack. The rest worked fine. I hate seeing an engine with "blue goo" all over it but in moderation I see nothing wrong with it. JMHO
  27. Engine Pro 5X
    Joined:
    Feb 13, 2008
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    4,186
    Location:
    SAUSAGE CAPITOL US of A

    Engine Pro 5X Member

    Medium strength Loctite >>>>.

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