Farm Equipment - cracked wd45 block

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cracked wd45 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=8793
Printed Date: 19 Jan 2025 at 5:23pm
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Topic: cracked wd45 block

Posted By: Bob (mo)
Subject: cracked wd45 block
Date Posted: 28 Feb 2010 at 9:01pm

Today i was cleaning up my wd45 to get it ready to sale and at some point over the winter the block has cracked about 3 inches under the block drain plug .The motor runs great and i hate to have to scrap it.What is the best way to repair the block ?

Replies:

Posted By: LouSWPA
Date Posted: 28 Feb 2010 at 10:53pm

They are weldable, but you need somebody that knows what he is doing, the block has to be preheated, etc.

I've heard of some using JB weld. I'm not fond of that idea, but many swear by it. use a grinder to "V" the block along the crack, drill the ends of the crack, and them fill the V and holes with JB

I'll leave it up to you whether to inform the buyer that it was fixed!

Posted By: Bruce Mn.
Date Posted: 28 Feb 2010 at 11:01pm

I used jb weld on my oliver 77 over 10 years ago . it's never leaked yet. I didn't drill any holes , just ground out a v along crack about a foot long , made sure it was good & dry. And filled crack with about 4 layers of jb weld.

Posted By: niel ev
Date Posted: 01 Mar 2010 at 9:30am

Bob a good shop can probablypin it. Its a little expensive but looks good when done right Niel