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wrwtexan 
Bronze Level
Joined: 05 Jul 2010
Location: Cooper Texas
Points: 11
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 Topic: sealing bad D8H head crack (pepper?)
Posted: 10 Oct 2010 at 11:02pm |
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I have an old Cat D8H farm dozer which is blowing water out the exhaust and pressurizing the cooling system. I sealed it several years ago with KW, but recently got it hot and it opened up again. This time the KW did not work and with the size of this machine and the time it is run per year, I want to try a quick fix. Does black pepper work very well for crack sealing or is there something else better. It is a 20 gallon system so expensive small engine sealers are too expensive a gamble.
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220, 190XT, 2 D17's, WD45, 2 CA's, C, M2 Forkbine
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Jeff Z. NY
Orange Level
Joined: 11 Sep 2009
Points: 7326
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Posted: 10 Oct 2010 at 11:19pm |
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This stuff is not that cheap but it may just fix that crack once and for all.
http://www.heal-a-seal.com/
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Brian Jasper co. Ia
Orange Level
Joined: 11 Sep 2009
Location: Prairie City Ia
Points: 10508
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Posted: 11 Oct 2010 at 6:22am |
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I know this isn't a cheap fix, box up the cracked head and ship it to Midwest Cylinder Head in Nevada Iowa. If it's cast, they can weld it.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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mlpankey
Orange Level
Joined: 13 Sep 2009
Location: Vols country
Points: 4580
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Posted: 11 Oct 2010 at 6:27am |
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cornbread works better. belzona is the best liquid glass second in my opinion.
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Coke-in-MN
Orange Level Access
Joined: 12 Sep 2009
Location: Afton MN
Points: 41761
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Posted: 11 Oct 2010 at 6:43am |
flax seed meal, get it at your drug store or health food store.
Bars Leak block seal powder , worked on my UD14 IH engine head on grader
Edited by Coke-in-MN - 11 Oct 2010 at 6:45am
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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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firebrick43
Orange Level
Joined: 10 Dec 2009
Location: Warren County
Points: 592
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Posted: 11 Oct 2010 at 8:47am |
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Good lord, you are taking an expensive gamble trying to seal things like that. Take the head off and get it stitched up(pinned), or if you like to gamble slightly more, welded.
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Brian Jasper co. Ia
Orange Level
Joined: 11 Sep 2009
Location: Prairie City Ia
Points: 10508
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Posted: 11 Oct 2010 at 11:48am |
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Sounds like Brick and I agree. Around here Midwest Cyl Head has a very good rep fixing cracked heads and blocks.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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