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D7000 engine oil cooler HD-6AG, HD7G, and?

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=174715
Printed Date: 04 Dec 2024 at 5:12am
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Topic: D7000 engine oil cooler HD-6AG, HD7G, and?
Posted By: kblackav8or
Subject: D7000 engine oil cooler HD-6AG, HD7G, and?
Date Posted: 26 Sep 2020 at 3:13pm
All of a sudden I am finding a lot of coolant in my oil.  Engine runs perfect and has good pressure but I am wondering if I blew an oil cooler or had an O-ring fail in it.  This is the 344CID 7000 turbocharged 4 cylinder engine.  Apparently they came in a bunch of stuff and some gensets.  I was thinking of just buying a fresh oil cooler if they exist but can't seem to search one up.  Should I pull it and take it apart?  The engine only has a few hundred hours on a rebuild.  There is a bit of oil seepage out of the back of the head gasket.  It has maybe an hour on the current oil change.  I sure hope it isn't liner o-rings. 



Replies:
Posted By: DMiller
Date Posted: 26 Sep 2020 at 3:20pm
Coolant in oil usually only One of two ways it gets there, Head Gasket or Sleeve seals.  Cooler bundle will see Oil in coolant.  Oil Pressure overcomes Coolant.

Posted By: kblackav8or
Date Posted: 27 Sep 2020 at 4:13pm
Drat looks like I am into liner o-rings or a head gasket. 



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