262 oil in coolant
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=204177
Printed Date: 31 Oct 2025 at 4:21am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 262 oil in coolant
Posted By: wade89
Subject: 262 oil in coolant
Date Posted: 15 Nov 2024 at 1:24pm
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Pulling down a combine power unit 262 gas for use in a loader. Drained the coolant and there had to have been close to a quart of oil in it. There’s no oil cooler for it to bypass and I would think bad o rings in the cylinders would result in coolant in the oil, exact opposite of what I have. Anyone ran across this before?
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Replies:
Posted By: DrAllis
Date Posted: 15 Nov 2024 at 1:56pm
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Never seen that in the 262 family. I had a 7020 one time that had oil in the radiator AND coolant in the engine oil and it was just the usual sleeve Orings. I did have a One-Eighty one time (and only one) that I bought to flip, knowing it had oil in the radiator, according to the owner. I didn't investigate, but bought it anyway, figuring it was just sleeve Orings. Well, it turned out to be the main oil galley down the right side of the block had a flaw in the casting and it was bleeding engine oil right into the sleeve Oring area thru that flaw in the cast. Never seen another one like that.
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