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water in oil D4 7U

water in oil D4 7U

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Cattle237
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I replaced pre combustion chamber that was bad and check the other three and they did not leak. Put new seals on ferrules was putting water in radiator and check the oil, there was water in the oil. Hadn't even turned the engine over yet could a ferrule have been damaged to let the water in between the head and the block with out engine running? I am at a loss as what to do next. Does anyone have any Ideas. Thank
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Wed, Apr 26, 2017 2:07 AM
captainhowdy
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If I were You. i would drain the oil and leave the plug out with a can underneath, then i would make sure the coolant was topped off and see if any more water comes out. just to make sure it didn't get in there while you had things apart.
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Wed, Apr 26, 2017 2:20 AM
Old Magnet
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Reply to captainhowdy:
If I were You. i would drain the oil and leave the plug out with a can underneath, then i would make sure the coolant was topped off and see if any more water comes out. just to make sure it didn't get in there while you had things apart.
Other suspect areas are leaking liner seals and/or pin hole/s in liner.
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Wed, Apr 26, 2017 3:24 AM
ccjersey
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Been there! D6 in my case.

I successfully stopped leaking liner seals with a stiff dose of DIKE stopleak. It was leaking so fast I could watch the level fall in the top of the radiator and water was coming out of a leaking gasket on the front of the engine! I pretty much knew it had to be the liner seals since I had just washed the sediment out of the block.

Pumped a couple gallons of old coolant mixed with a couple bottles of DIKE into the block drain on the side and let it sit overnight. Then drained all the coolant off the bottom of the oil pan before filling the radiator and running it enough to mix all the residual moisture into the oil. Changed the oil while hot and never had a problem for a couple years.

After it sat unused for a year or so, it started getting coolant in the oil again and I was planning to either scrap it or overhaul it when i discovered a rusted out freeze plug in the top of the head. Lucked into that discovery when I had the valve covers off. If I hadn't had them off, i would have mistakenly attributed the leak to the liner seals.
D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time😄
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Wed, Apr 26, 2017 8:39 AM
Old Magnet
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Reply to ccjersey:
Been there! D6 in my case.

I successfully stopped leaking liner seals with a stiff dose of DIKE stopleak. It was leaking so fast I could watch the level fall in the top of the radiator and water was coming out of a leaking gasket on the front of the engine! I pretty much knew it had to be the liner seals since I had just washed the sediment out of the block.

Pumped a couple gallons of old coolant mixed with a couple bottles of DIKE into the block drain on the side and let it sit overnight. Then drained all the coolant off the bottom of the oil pan before filling the radiator and running it enough to mix all the residual moisture into the oil. Changed the oil while hot and never had a problem for a couple years.

After it sat unused for a year or so, it started getting coolant in the oil again and I was planning to either scrap it or overhaul it when i discovered a rusted out freeze plug in the top of the head. Lucked into that discovery when I had the valve covers off. If I hadn't had them off, i would have mistakenly attributed the leak to the liner seals.
If left to where the cooling system drains dry it's most likely liner seal.
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Wed, Apr 26, 2017 9:01 AM
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