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Volvo Penta 7 B Oil in the heat exchanger

S

srodom

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"I have a Volvo Penta 7 B engi

"I have a Volvo Penta 7 B engine. On three occasions I have ended up with oil in the heat exchanger. It has been "repaired" twice but after about 8 months of pretty light use, the problem reoccured. The head has been honed down and rebuild and a new head gasket was used each time. The third time the problem happened I just pulled the engine and hauled it to a machinge engine rebuild shop. So far they have not been able to figure out the problem Any ideas? Steve"
 
"When You say 'oil in the

"When You say 'oil in the heat-exchanger', may I presume You have an add-on Martec freshwater cooling system and You are talking PURE engine oil and not combustion soot/exhaust?"
 
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