RC antifreeze in oil
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=9775
Printed Date: 21 Jan 2025 at 6:38pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: RC antifreeze in oil
Posted By: esamuelson
Subject: RC antifreeze in oil
Date Posted: 20 Mar 2010 at 9:30pm
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I am getting antifreeze in the oil on this tractor. When I got this tractor it had been sitting for many years (10 or more years)! I got it going it was parked when the roll pin in the cam broke that drives the oil pump. I had fixed this but now am getting antifreeze in the oil. Is there a way to find out where it is getting in at? Do these engines have orings on the liners? Could it just be a bad head gasket? It runs fine and I do not think it is getting in the cylinders. I really do not want to have to tear this engine down if there is a possibility it is fixable easily.
Thanks
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Replies:
Posted By: wf32
Date Posted: 20 Mar 2010 at 9:42pm
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Take of valve cover first and check for bad frost plugs in head
Phil
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Posted By: Tony.Or
Date Posted: 20 Mar 2010 at 10:32pm
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Yes engine has sleeve o-rings . also soft plugs in head, or head gasket . Tony
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Posted By: Brian Jasper co. Ia
Date Posted: 20 Mar 2010 at 11:50pm
Pull the oil pan, pressurize the cooling system if possible and look for drips if the core plugs in the head are OK.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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Posted By: CTuckerNWIL
Date Posted: 21 Mar 2010 at 8:32am
I would find a regulator for an air line and pull the valve cover. Pressurize the rad with maybe 10-12 psi and see if the freeze plugs in the top of the head leak. If these are ok it could be a head gasket,which might show up by blowing water out of the radiator while the engine is running. If neither of these seem bad, you can drop the pan and pressurize the rad and look for seepage around the bottom of the sleeves. From what I've heard antifreeze pumped through bearings and other internal motor parts can be a bad thing.
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Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
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Posted By: esamuelson
Date Posted: 21 Mar 2010 at 4:49pm
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I will get to work. Thanks for the advice and I will keep everyone informed on what I find.
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Posted By: Rick of HopeIN
Date Posted: 21 Mar 2010 at 5:09pm
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My B had both issues at once. Rusted thru frost plugs and liner O rings leaking. Yes, I think all Allis engines of that era had wet liners with O rings.
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