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68 Posts
Ahoy,
This may be a more broader question than specific to Pacific Seacraft boats, but I want to specifically ask PS owners about their experiences with corrosion damage to the exhaust heat exchanger, exhaust elbow, mixing elbow and other damage done below these components (flywheel housing and oil pan corrosion damage) due to leakage and subsequent corrosion.
During my initial pre purchase inspection of a PS37's Yanmar 4JH2E engine, and later confirmed during a survey, I discovered that severe corrosion had damaged the components noted above due to un-repaired leakage at the exhaust elbow/heat exchanger mating surfaces. The exhaust gas and salt water combination was corrosive enough, over time, to severely corrode the surrounding components and also the flywheel housing and oil pan below. Additionally, the aft, port engine mount is damaged to the point of unserviceability. Many other components in the engine compartment are also severely corroded, no doubt as a result of the destructive atmosphere in there during ongoing engine operation with such a leak.
The heat exchanger appears damaged beyond repair as are all downstream components.
Anyone care to comment?
This may be a more broader question than specific to Pacific Seacraft boats, but I want to specifically ask PS owners about their experiences with corrosion damage to the exhaust heat exchanger, exhaust elbow, mixing elbow and other damage done below these components (flywheel housing and oil pan corrosion damage) due to leakage and subsequent corrosion.
During my initial pre purchase inspection of a PS37's Yanmar 4JH2E engine, and later confirmed during a survey, I discovered that severe corrosion had damaged the components noted above due to un-repaired leakage at the exhaust elbow/heat exchanger mating surfaces. The exhaust gas and salt water combination was corrosive enough, over time, to severely corrode the surrounding components and also the flywheel housing and oil pan below. Additionally, the aft, port engine mount is damaged to the point of unserviceability. Many other components in the engine compartment are also severely corroded, no doubt as a result of the destructive atmosphere in there during ongoing engine operation with such a leak.
The heat exchanger appears damaged beyond repair as are all downstream components.
Anyone care to comment?