Farm Equipment - Cracked block or head gasket?

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Cracked block or head gasket?

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=35382
Printed Date: 10 Sep 2025 at 5:24pm
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Topic: Cracked block or head gasket?

Posted By: dad2many
Subject: Cracked block or head gasket?
Date Posted: 11 Aug 2011 at 6:44pm

Is there a good way to determine if an engine has a blown head gasket vs a cracked block? Reason I ask is that I am looking to purchase an item that the seller says runs but smokes a little due to a blown head gasket. I am more than willing to rebuild an engine, not a problem, but a cracked block could be an issue.

Thanks

Replies:

Posted By: DougG
Date Posted: 11 Aug 2011 at 8:12pm

I always look in the coolant for air bubbles when the engines running if any head gasket trouble is suspected , or oily water etc; if waters going into a cylinder it,ll usually be whiteish smoke ; one never knows , but any more if its cracked it can prolly be weded up ; been there done that