Dt466 1990 oil in water - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 3 (permalink) Old 05-21-2018, 10:45 AM Thread Starter
Mal
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Dt466 1990 oil in water

Please help ive spent 1000s of dollars on this engine my mechanic has just replaced a few gaskets on front of motor which involved taking head off . All gaskets replaced . Drove for a week now oil is coming out of overhead water tank. Took oil cooler off and pressure tested it and it was perfect. Where else can oil get into water if oil cooler is fine and they only recently changed the head gasket.
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post #2 of 3 (permalink) Old 05-24-2018, 11:07 AM
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There are a couple of places on the head gasket. The cylinder sleeves can leak at the bottom seal as well.
Oil coolers an pas a cold pressure test yet fail when hot.
It sounds like something went wrong with the head replacement, perhaps they cut the gasket placing the head?
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post #3 of 3 (permalink) Old 05-25-2018, 01:02 PM Thread Starter
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Thanks mate my mechanic keeps saying everything points to cooler which is why he wants to test it again. Im having trouble locating another cooler in the mean time . I have the dt466c engine
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