Farm Equipment - Cracked block

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Cracked block

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=13308
Printed Date: 01 Feb 2025 at 1:47pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Cracked block

Posted By: Glockhead SWMI
Subject: Cracked block
Date Posted: 02 Jun 2010 at 8:34pm

The C/B project has a cracked block. Do they typically crack all the way through? Will water get in the oil from the crack? I may weld it up and hope for the best. I know I have saw others comment about cracked blocks in the past. Looking for some advice on what to do. I really do not want to pull the engine. I do not have time for that type of project.

Replies:

Posted By: powertech84
Date Posted: 02 Jun 2010 at 8:35pm

where's it cracked?

Posted By: mlpankey
Date Posted: 02 Jun 2010 at 8:59pm

I mainly deal with junk. Even the heads that dont leak by the time I port them to the point I am after usually do . Like most cylinder head porters working on cast iron I have come to appreciate Belzona 111 supermetal . http://www.belzona.com/assets/PDFs/XXII_13.pdf - http://www.belzona.com/assets/PDFs/XXII_13.pdf

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people if they don't already know it you can't tell them. quote yogi berra

Posted By: Glockhead SWMI
Date Posted: 03 Jun 2010 at 6:07am

The crack is behind the generator and carb.

Posted By: Dick L
Date Posted: 03 Jun 2010 at 7:48pm

What planky said, bolt a metal patch over the crack, learn how to stitch the crack or you could weld it. If I was to weld it I would have it TIG welded using cast iron as a filler. You can TIG weld it without preheating as long as you go slow enough that an inch away from the weld you are always able to touch with your finger without getting burned. Weld and wait then weld and wait.

Posted By: Glockhead SWMI
Date Posted: 05 Jun 2010 at 6:55am

The thing about this is someone already tried to repair it and did a horrible job. I wish people would take a little pride in the work they do. I will fix it up and see how it goes.