Cooling system on f2
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=130026
Printed Date: 05 Jun 2025 at 5:02pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Cooling system on f2
Posted By: JFREED
Subject: Cooling system on f2
Date Posted: 14 Oct 2016 at 9:05pm
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Can someone explain how the system works? Changed water pump, refilled radiator and started it up. Ran at idle for 25 min and temp gauge got to middle of green but bottom hose was cold,top hose was cool but the short hose between pump and thermostat housing was too hot to touch. The heater hose is turned off at the block . Thanx
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Replies:
Posted By: Dans 7080
Date Posted: 14 Oct 2016 at 9:24pm
Have you rechecked the antifreeze once it cooled down? The thermostat can seal water off and make an air pocket in the top of the engine.
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When someone tells you Nothings Impossible, Tell them to slam a revolving door
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Posted By: MACK
Date Posted: 14 Oct 2016 at 9:31pm
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The bypass allows some coolent to circulate. After coolent gets hot enough for thermostat to open the top hose will be hot and bottom hose will be warm. Put a load on it. MACK
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Posted By: JFREED
Date Posted: 14 Oct 2016 at 9:35pm
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Will have to wait til morning to check. Attempted to right after shutdown but could not get the cap off without a mess. Figured there would be air in system but hoped it would work its way out when stat opened
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Posted By: JFREED
Date Posted: 14 Oct 2016 at 9:42pm
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Hopefully tomorrow it will get a workout in the beans. BTW,why is the scale for cylinder height on sides of feederhouse not on 1/8 inch intervals with a real tape measure? I figure it has to do with curve of cylinder and its floor?
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Posted By: Dans 7080
Date Posted: 14 Oct 2016 at 10:51pm
I'll check tomorrow but I think it is based on the piviot point vs the location of the gauge.
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When someone tells you Nothings Impossible, Tell them to slam a revolving door
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Posted By: SteveM C/IL
Date Posted: 14 Oct 2016 at 11:19pm
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The guage is a long way in front of the center of the cyl which is where you setting clearance.Also the numbers don't match reality.Open the trap door and use a piece of flat iron between the cyl bars and concaves for true setting,then make a note telling the difference.on my F2 I have the gauges low as they go(think I even slotted them some more) and my note in paint pen on the feeder house says 1/4 = 3/8....
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Posted By: JFREED
Date Posted: 15 Oct 2016 at 5:58am
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That makes sense about over center, Thanx
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