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    Yanmar 6LP-STZE Lube oil oin Coolant...ideas? Its not the internal Lube oil cooler...

    Hello fellow boat owners and all around marine oriented folks. I have (several) yanmar 6LP STZE 315HP diesel engines in 32' charter boats here in Alaska. We have one that is bleeding engine lube oil into the coolant (fresh water side...boat has raw salt water to fresh water heat exchanger). We...
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