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

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   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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kblackav8or Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 05 Nov 2018 Location: Woodland WA Points: 80	Post Options Post Reply Quote kblackav8or Report Post Thanks(0) Quote Reply Topic: D7000 engine oil cooler HD-6AG, HD7G, and? 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 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 14 Sep 2009 Location: Hermann, Mo Points: 31200	Post Options Post Reply Quote DMiller Report Post Thanks(0) Quote Reply 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.

kblackav8or Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 05 Nov 2018 Location: Woodland WA Points: 80	Post Options Post Reply Quote kblackav8or Report Post Thanks(0) Quote Reply Posted: 27 Sep 2020 at 4:13pm
	Drat looks like I am into liner o-rings or a head gasket.