Garden Tractors - Neglected Allis Chalmers 720 TLB

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Neglected Allis Chalmers 720 TLB

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Garden Tractors
Forum Description: A great place to discuss the Simplicity and Allis Chalmers Garden Models
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=206582
Printed Date: 19 Jul 2025 at 3:22pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Neglected Allis Chalmers 720 TLB

Posted By: Heliarc
Subject: Neglected Allis Chalmers 720 TLB
Date Posted: 04 May 2025 at 5:09pm

Brought this home yesterday. It's certainly a project but I think it'll be an awesome machine when it's up and running.

I figure I can do a better job showing what I go through on video. Seller said something about this is one of seventeen configured this way with a loader and backhoe. I don't know but once it's working it's going to be great!

https://youtu.be/1x5U2iTbxfs" rel="nofollow - https://youtu.be/1x5U2iTbxfs

Replies:

Posted By: HudCo
Date Posted: 05 May 2025 at 10:38am

thats a neat set up, take the heads off it might be locked up from carbon deposits on the head

Posted By: Heliarc
Date Posted: 05 May 2025 at 1:13pm

Filled the cylinders with ATF/Seafoam. All I had was Seafoam so I figured can't hurt. Left it overnight. Took the cover off the shaft to the rear PTO and used a pipewrench on the shaft. It came loose with little effort. Back and forth a few times until it would roll all the way through, rolled it over ten more times then rolled it over a bunch on the starter. Right side compression is currently 90PSI, 115 on the left. I figure there's some junk in the rings on the right side.