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Allis Chalmers Discussion Forum
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B Allis

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Brent S

07-07-2008 05:32:12




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Anyone know the best fix for a block that has a crack in it? I was told J.B. weld. didnt know if there was anything better that would work. Thanks




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mlpankey

07-09-2008 16:36:11




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 Re: B Allis in reply to Brent S, 07-07-2008 05:32:12  
Yes there is a better fix than jb weld but its somewhat expensive .Belzona 111 supermetal its keep heads blocks even radiators from going to the scrap yard. the last i bought was 194.00 but it lasts a while didnt mention my air compressor tank froze and busted smeared it over the spiderweb cracks and she still holds 160 psi.



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Ed Hodge

07-07-2008 19:17:11




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 Re: B Allis in reply to Brent S, 07-07-2008 05:32:12  
i used body filler with fiberglass i last about 3 year nee you have to do it over



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Dick L

07-07-2008 07:15:10




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 Re: B Allis in reply to Brent S, 07-07-2008 05:32:12  
Is this a running tractor or something you are starting on?



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Brent S

07-07-2008 07:33:17




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 Re: B Allis in reply to Dick L, 07-07-2008 07:15:10  
just got it and it needs to be restored. Was running until the guy left it outside with water in it. pretty good condition but needs paint, tires and rims.



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Dick L

07-07-2008 09:44:21




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 Re: B Allis in reply to Brent S, 07-07-2008 07:33:17  
The reason I ask was if it is not running and you have not yet taken the head off you may want to before making a decision about patching the block. Unless you want to be number correct any engine block from a B, C, or CA will work. All the same block except for numbers and the bump on the left side of the CA. All internal parts interchange.



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old

07-07-2008 06:29:22




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 Re: B Allis in reply to Brent S, 07-07-2008 05:32:12  
JB weld might work but its just a patch that may or may not hold. Best fix of course is to find a good used block to replace the one you have. I have 2 of them here that are good but need to have sleeves etc



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Brent S

07-07-2008 06:40:48




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 Re: B Allis in reply to old, 07-07-2008 06:29:22  
This B is a 1939 i believe, it has no power anything. willany block work or do you have to have a year that is the same? any idea what this might be worth fixed up?



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old

07-07-2008 07:26:34




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 Re: B Allis in reply to Brent S, 07-07-2008 06:40:48  
I'm not sure as to what years had the smaller engine but if its not one of those any block from a B/C/CA will fit unless like I said its the smaller engine and even then a complete engine from the others will bolt right up



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Dick L

07-07-2008 06:27:39




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 Re: B Allis in reply to Brent S, 07-07-2008 05:32:12  
Where is the crack?



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Brent S

07-07-2008 06:32:13




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 Re: B Allis in reply to Dick L, 07-07-2008 06:27:39  
It is on the carb side and its about 8 inches long. It goes just above the block drain in back of the carb.



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Dick L

07-07-2008 06:49:45




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 Re: B Allis in reply to Brent S, 07-07-2008 06:32:13  
Vee it out and get some JB weld water putty or what ever brand the have on the shelf where you shop. I bought mine a Walmart in the automotive section. I just bought a new stick there but was another btand. Fantastic stuff. Does not drupe. Just cut off a small amount about an inch at a time. It will get hard in your hand if you do. You can push down in a crack with your thumb.
Years a go I bought a car with a freeze crack like that and it had been patched with Bondo and never leaked in all the time I drove it.

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