Farm Equipment - 5020 issues

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5020 issues

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=35541
Printed Date: 28 Aug 2025 at 5:27pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 5020 issues

Posted By: Charlie
Subject: 5020 issues
Date Posted: 15 Aug 2011 at 8:02am

I have a 5020 and is a great tractor but there is an issue with it wanting to over heat. I try and keep the radiator clean but still over heats if pushed. Previous owner took out the thermostat and I'm wondering if that's making it worse.

It also gets a dark oily film on the battery terminals and I have to keep cleaning them so it will start.

Any ideas to fix these problems?

Replies:

Posted By: john(MI)
Date Posted: 15 Aug 2011 at 1:18pm

I just had the battery problem. Was caused by the ground cable, loose connection.

The overheating may be caused by the rad being plugged. I had mine off when I changed the water pump, and it took me about two hours to get it washed out! Runs lots cooler now.

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D14, D17, 5020, 612H, CASE 446

Posted By: nsula_country
Date Posted: 15 Aug 2011 at 2:52pm

Sounds like you need to take your radiator to a good shop and have it rodded out. My Komatsu excavator was doing that last year. Cost $60 to have them boil it out and rod. Cheaper than scorching an engine.