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Old 06-25-2010
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Capnblu Capnblu is offline
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So the oil, which is not in a pressure situation, within the engine (other than when it passes through the galleries to the bearings etc.) is getting into the heat exchanger by what means through a head gasket, or cracked head? and the coolant which when at working temperature would create a pressure in the freshwater side of your system, isn't putting coolant into the crankcase? Sorry, I don't buy it.... My bet will be on what your mechanic finds when he thinks this through. Get him to show you how, before you sign the cheque. Of course my usual advice is to do a wet and dry compression test, and AFTER you have those results, go for the oil analysis. Good luck.
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