Wd 45 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=172695
Printed Date: 11 Oct 2025 at 6:42pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Wd 45 block
Posted By: gman11110
Subject: Wd 45 block
Date Posted: 09 Jul 2020 at 11:28am
| I just purchased a WD 45. oil pan was full of water. tore engine down and found cracks between cylinder sleeves at top and bottom. Any way of repairing or do I need another block. |
Replies:
Posted By: DrAllis
Date Posted: 09 Jul 2020 at 11:37am
| It is probably repairable, depending on where you live, but I'd bet the cost for six places of repair would be more than a good used block. |
Posted By: SteveM C/IL
Date Posted: 09 Jul 2020 at 11:45am
| Just remember that cracks at the top are not a problem. the cracks in the lower webs are |
Posted By: garden_guy
Date Posted: 09 Jul 2020 at 11:51am
|
How do you (or a specialty shop) repair lower web cracks? |
Posted By: DrAllis
Date Posted: 09 Jul 2020 at 12:10pm
| They put the block in an oven and weld (braze) the cracks and then re-machine everything when done. Not cheap and very few places can do it. They also weld up cylinder heads. |
Posted By: gman11110
Date Posted: 09 Jul 2020 at 1:44pm
| that's what I'm thinking Think I would be wasting my time if I cleaned block and tried jb weld on top and bottom of bottom web |
Posted By: DrAllis
Date Posted: 09 Jul 2020 at 2:12pm
| There is absolutely no structure to J.B. Weld. The block will still open and close at those lower cracks as temperature and load changes. A total waste of time. |
Posted By: gman11110
Date Posted: 09 Jul 2020 at 2:23pm
| thanks I will search for another block |
Posted By: garden_guy
Date Posted: 09 Jul 2020 at 4:46pm
Oh yeah, that sounds.... very specialized and difficult. Can't imagine the size of the oven nor how exactly they pull this off. However, nice that they can still salvage the blocks.
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DrAllis wrote: