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Thread: sbc block freeze plugs leaks

  1. #1
    Senior Member EXPERT BUILDER
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    sbc block freeze plugs leaks

    Are there any sealers that will work on a very small leak on a freeze plug without using block sealer or removing the soft plug?

  2. #2
    Senior Member RACING JUNKIE jmarksdragster's Avatar
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    If you are looking for permanent fix, forget it. You can get rubber screw in for a temp fix, the best way is to replace it.
    Mark Whitener
    http://racingfuelsystems.myfunforum.org
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    Good work isn't cheap, and cheap work can't be good.

  3. #3
    Senior Member EXPERT BUILDER
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    What is a soft plug?

  4. #4
    Senior Member RACING JUNKIE
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    Quote Originally Posted by davis419b
    What is a soft plug?
    I was thinking the same :lol:
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
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  5. #5
    Senior Member EXPERT BUILDER
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    I ran a SBC for 12 years and never heard of a soft plug and have been through plenty of engine projects ? Got to be a freeze plug!

  6. #6
    Senior Member RACING JUNKIE
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    I would think so also ... but maybe we are just outdated now
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com

  7. #7
    Senior Member DYNO TECH
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    yeah i seen the rubber (temporary)plugs
    pretty easy to install but dont think about using those at the track!
    screw in are the best.
    there is a pic of one here
    http://www.automedia.com/Replacing_a...cr20070401fp/1
    I always learned to pin the plugs and use a bit of indian shellac sealer on them .

  8. #8
    Senior Member DYNO TECH
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    definitley replace the plug with a brass plug and put a good coat of permatex on the backside before installation/ Just my $.02
    'A government big enough to give you everything you want, is big enough to take away everything you have.'

    Thomas Jefferson


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  9. #9
    Senior Member EXPERT BUILDER
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    Thanks for the info-I replaced the freeze plug and put Indian Head sealer on it.No more leak

  10. #10
    Junior Member APPRENTICE
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    Frost plugs are freeze plugs are soft plugs. Depends on how old you are and where you are from. Install them w/ an epoxy or JB and they wont leak. Also use brass ones and they won't ever rust through. That's important I guess if you can get a block to live a bazillion passes.
    Duane


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