Farm Equipment - RC cooling system

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RC cooling system

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=54677
Printed Date: 19 Jan 2026 at 5:49am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: RC cooling system

Posted By: GeorgeinNJ
Subject: RC cooling system
Date Posted: 03 Aug 2012 at 10:24am

Finished engine rebuild. Filled radiator to just below overflow tube and started engine.

Success,it runs!! However, after running for maybe 5 minutes, water came pouring out of the overflow. Stopped engine to investigate and found water level in radiator just above

core. lost abouit 2 quarts water because thats what it took to refill. started engine again.

Just starting to show increase in temperature, tank was still cool, and it overflowed again.

What is the normal water level? Am i putting in to much water?

This was a complete teardown and rebuild, clean block, new sleeves, new thermostat.

Am i missing anything? Any and all suggetions greatly appreciated as i am at a loss as

what to do next. Thantks, George

Replies:

Posted By: Alberta Phil
Date Posted: 03 Aug 2012 at 11:10am

My WD does the same thing. New rad and everything. It seems to set it's own coolant level in the top tank that it likes and stays there. It never overheats and has been like that for the 10 plus years I have had it in daily use.

Posted By: Coke-in-MN
Date Posted: 03 Aug 2012 at 11:14am

Use to figure 2" down from the overflow , this allows for expansion and for any air trapped in water to be relieved without creating a overflow. Non pressure systems need that room.

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