Block 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=7558
Printed Date: 04 Nov 2025 at 2:58am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Block cracks
Posted By: DSeries4
Subject: Block cracks
Date Posted: 02 Feb 2010 at 9:25pm
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I got the block for my 59 D14 hot tanked and cleaned. A hairline crack was found near the top between the 3rd and 4h cylinder.
I would like to confirm that this will not pose any problems. If my memory serves me correct, a block that has a crack near the bottom is no good for anything (except meybe a boat anchor).
Thanks in advance for the feedback.
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Replies:
Posted By: DSeries4
Date Posted: 02 Feb 2010 at 9:27pm
| This picture shows how I found it. |
Posted By: LouSWPA
Date Posted: 02 Feb 2010 at 9:31pm
| It's rare to find a block w/o those cracks, well, maybe not rare, but the cracks are pretty common and are not a problem |
Posted By: mark-east-tn
Date Posted: 02 Feb 2010 at 9:44pm
| I ve got 2 0r 3 tractors that are same way, cracked between cylinders and they run like a champ. |
Posted By: Fred in Pa
Date Posted: 03 Feb 2010 at 6:58am
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If it is hair line crack most are no problem ,BUT it is not in front of me and I can not see how it is .Any close up pictures?.
If it is a hair line crack, when you drop sleeves with out O-ring check sleeve height.Would not hert to deck block and cut counter bores.
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Posted By: Denis in MI
Date Posted: 03 Feb 2010 at 7:32am
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My B has them between 1&2 2&3 3&4 and the guy at the machine shop said they didnt hurt anything ------------- 1938 B, 1945 B, 1941 IB, 1949 C, 2 1938 WCs, 3 1950 WDs, 1951 WD, 2 1955 WD45, 1957 D-14 |
Posted By: archangel_cpj
Date Posted: 03 Feb 2010 at 3:57pm
| I think that like 90 percent of AC blocks cracked in that spt being a sleeved motor it poses no problems mines been that way for 20 years that I know of now I will put this caviate in when I did my overhaul a few years back before I put my head gasket back on I used a coper based spray gasket NAPA has for head gasket placement Ive used it since and on Head gaskets I replace good job |