Head Gasket Sealant??

Discussion in 'General Discussion' started by zant, Oct 12, 2017.

  1. zant

    zant Well-Known Member

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    Are there any products that work??Old guy has a 94 Ford Escort 1.9-has small head gasket leak.I offered to pay for putting new head gasket-he refused-"too much like charity".So he's going to buy sealant if I tell him which one.If it doesn't work,I'll "borrow" his car and fix it.Thanks.
     
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  2. Shooter45

    Shooter45 *Administrator* Staff Member Supporting Member

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    Just fix it.
    There is a head gasket sealer with glass that works until you really need it.
    Don't waste his money. :)
     
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  3. CCHolderinMaine

    CCHolderinMaine Well-Known Member

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    There's a million variables in that equation. There's basically 2 types of sealers. The kind that forms a glass-like crystalline "repair" and the newer formulations that make a more flexible fix. The earlier glass types are good for iron heads/blocks but are not so hot on aluminum. The newer types take aluminum's expansion into account.
    Either way though, except for in the slimmest margin of cases, it's a very temporary "fix". Gasket leaks are very iffy. Small head/block cracks and very minor warpages have the best chance of these repair-in-a-bottles working for any length of time.
     
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  4. Designer

    Designer Well-Known Member

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    I don't think you can fix any leak without pulling the head, and while you've got the head off, install a new gasket. The old guy is way to darned independent for his own good. Let him pay you back somehow.
     
  5. jsjj388

    jsjj388 Well-Known Member

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    These fixes almost never work. The older style sealer worked for a very short time when the whole motor is cast iron. But it is ALWAYS a temporary fix and almost always causes more problems down the line. The stuff always seems to set up in the worst possible places, then either stops coolant flow to one area, or creates enough coolant pressure to blow the rest of the gasket. Just fix the problem and go on. Its cheaper that way.
     
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  6. howlnmad

    howlnmad Well-Known Member Supporting Member

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    I wouldn't waste the time or money on a sealer. The best way is to replace the gasket.
     
  7. dbcooper

    dbcooper Well-Known Member Supporting Member

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    Sodium silicate , sometimes called "water glass"
    You can buy it at some older mom and pop drug stores. This can work in a pinch if the car is not worth fixing or you need to buy some time.
    I used it on an old Ford 360 one time, it bought me a year before I pulled the motor and rebuilt the truck
     
  8. BlueDragonLair

    BlueDragonLair Well-Known Member

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    Like already posted just replace gasket. I never tried any sealant for head. Most likely as already posted just prolong and possible make a larger problem in long run.
    Only time I ever tried any 'fix' was a freeze plug. Stopped only for a day or so then just slowed down leak but didn't stop it.
     
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  9. 68c15

    68c15 Well-Known Member Supporting Member

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    it's been a while since I've worked on one of those cars. I seem to remember thay had issues with head gasket leaking externally. It was one of the corners. If that's the case I'd consider a temporary fix of Bar's Leak
     
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  10. tedwitt

    tedwitt Well-Known Member Supporting Member

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    The wated is gone, just in Texas.
    My dad would use liquid glass the sell them. Just replace the gasket the way it's supposed to by done.
     
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  11. David13

    David13 Well-Known Member

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    Are you going to fix it, or are you going to fix it? Half butted is not fixed. It's just half butted.
    dc

    (Edited for forum rules)
     
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  12. soundguy

    soundguy Well-Known Member Supporting Member

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    When rebuilding an engine on an old ford tractor, I use to toss in a builders cube, plus cnh used to make a head sealer paste to be used in conjunction with a hg replacement

    Neither were meant to seal a leaking hg though. Just stop flaws in sealing and settling of new gasket while you heat cycled it prior to retorqing.
     
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  13. Millwright

    Millwright Well-Known Member

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    If I knew a foolproof one I'd never have given away the wife's '99 Conti !
     
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  14. lcn

    lcn Well-Known Member

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    I was in the radiator business for 21 years and I saw hundreds of head gasket leaks. Many had already tried to fix them with sealants. It don't work. And forget about water glass. Add to the cost of a R and R head job and a head surfacing the cost of a new radiator or at the least a recore. Most of the time I didn't want to deal with the waterglass in the tanks so it was a new radiator. Waterglass is wicked stuff in a radiator, no way to remove it. And don't anyone say "put it in the boil-out tank. Caustic Soda only attacks organic compounds. Boil-out tanks only strip oil and water- base paints, oil and grease, cow crap, cottonseed fuzz, moss, bugs and any thing also that is organic. It only gives the radiator man something clean to work on.
     
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  15. zant

    zant Well-Known Member

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    Well I found an Escort on CL with bad tranny for 300$-motor runs good.Going over to check out-will buy if good and sneak car into his driveway.My mechanic said he's switch motors for 200$.
     
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