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

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kblackav8or View Drop Down
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Joined: 05 Nov 2018
Location: Woodland WA
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    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. 

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DMiller View Drop Down
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Joined: 14 Sep 2009
Location: Hermann, Mo
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post 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.
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kblackav8or View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kblackav8or Quote  Post ReplyReply Direct Link To This Post Posted: 27 Sep 2020 at 4:13pm
Drat looks like I am into liner o-rings or a head gasket. 

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