B engine cracks
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=25175
Printed Date: 25 Jul 2025 at 7:16am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: B engine cracks
Posted By: wbecker
Subject: B engine cracks
Date Posted: 03 Feb 2011 at 2:41pm
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I have my IB torn down and see cracks between the cylinders. Should I scrap the block and look for a replacement, or should it be ok to use as it looks like the cracks would be sealed by the head gasket?
Opinions?
Bill B
 ------------- Allis B, IB, Low B, G, D10, JD M, 8KCAB, C152 |
Replies:
Posted By: DonDittmar
Date Posted: 03 Feb 2011 at 3:12pm
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Run it. Head gasket will seal it off. 95% of the B blocks out there are cracked in the same place ------------- Experience is a fancy name for past mistakes. "Great moments are born from great opportunity" 1968 D15D,1962 D19D Also 1965 Cub Loboy and 1958 JD 720 Diesel Pony Start |
Posted By: David Gibson (OH)
Date Posted: 03 Feb 2011 at 3:15pm
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Don hit the nail on the head. Most B's have those cracks. ------------- David Gibson http://www.darkecountysteam.com" rel="nofollow - http://www.darkecountysteam.com 1956 WD45 |
Posted By: Don Smith
Date Posted: 03 Feb 2011 at 4:09pm
| Never fear the crackes will not hurt anything. All my Bs have these cracks. Hope this helps. |
Posted By: GlenninPA
Date Posted: 03 Feb 2011 at 8:11pm
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Cracks at the top are fine.
Cracks at the bottom mean new block.
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