My C-13 just did this and it was the inner cooler that cools the intake air.
There's a water cooled radiator inside the intake on the right side of the motor close to the Turbo that can leak coolant strait into the intake if it fails. Water gets past the pistons and into the oil.
CAT C13 KCB, oil in water after inframe
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by wtokhi, Nov 4, 2019.
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Its not uncommon to pinch or bind or have one not seat correctly. I can only assume the mechanic lubed them correctly on installation. Also if the block is pitted or worn where they seat they will leak
wtokhi Thanks this. -
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Are you sure its "oil"?
If your getting "fuel" in the coolant it may look like (to some people) oil floating on top.
A bad injector cup could let fuel get in the coolant system. It could also explain the low power.wtokhi Thanks this. -
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Im glad you got it sorted out
wtokhi Thanks this. -
Glad to see you solved the issue wtokhi!
I see now my earlier post was totally irrelevant to your situation. I read it backwards I guess and would delete it if I could but the edit window has closed.
I had water in my engine oil not oil in my coolant.
Although quite scary it was a 950 dollar precooler or intercooler that didn't exist on earlier bullet proof Cat engines.
Lots of white smoke, engine missing and went through a lot of coolant. Also was getting coolant into the oil pan just for those who haven't experienced it yet.wtokhi Thanks this.
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