Mike Broshar
New member
I'm new to this forum. We purchased a 2006 Cruisers Yacht 455 with TAMD74 diesels with 135 hours this past fall. Closed cooling system with raw water and heat exchanger. When we took the boat out the first time, the starboard engine was smoking after running on plane. The next weekend, when we took the boat out, we were idling and the high temperature alarm sounded. We shut down the engine and went back to port. Checked the impeller on the water pump (which was okay). Added coolant (was low). The next morning, we went to the gas dock at idle speed to pump out. After pumping out, could not start starboard engine, and burned out starter. Had starter repaired. Our local mechanic had VP rep look at boat (local mechanic unfamiliar with diesel engines). Got engine running and ran (not under load) for 30 minutes. Mentioned vapor lock. Took boat out a week later and the engine overheated as soon as I started to go beyond idle. Some loss of coolant.
Had a local diesel mechanic look at it. Took an oil sample and found 10% water, but no coolant in the oil. Also traces of iron and phosphorous. Recommended removing the oil pan to see what's in there. The local mechanic works on trucks and not able to work on marine engines. I need to find a mechanic to look at the engine (in East Dubuque, IL). I think the closest VP Marine mechanic is in Kenosha, WI.
Any thoughts on how water would get in the oil?
Had a local diesel mechanic look at it. Took an oil sample and found 10% water, but no coolant in the oil. Also traces of iron and phosphorous. Recommended removing the oil pan to see what's in there. The local mechanic works on trucks and not able to work on marine engines. I need to find a mechanic to look at the engine (in East Dubuque, IL). I think the closest VP Marine mechanic is in Kenosha, WI.
Any thoughts on how water would get in the oil?