I arrived at Oxbow Marina late Friday afternoon of Labor Day Weekend with the port engine shut down in response to an engine alarm occurring on the long trip up from the Bay. The alarm could mean trouble with any of oil pressure or heat exchanger or water pump. But all fluid levels were good, and there were no signs of leaks. Next morning I was informed that Leith of Nordic Marine was aboard his boat one slip over, and I should talk with him. In the middle of a maintenance project of his own, Leith stopped that work and immediately came to my boat and assessed the problem. I mentioned that I would be willing to get underway on the starboard engine for a short weekend trip to another location in the Delta, and fix this next week when he was less busy. However, Leith said he did not want me to head off on a single engine, trotted over to his workshop, returning with his tools and diagnostic gear a few minutes later. A very thorough and systematic exam of the port engine followed as he checked for a fouled raw water intake, fouled water filter, broken impeller, coolant levels, oil pressure, etc. Fortunately, the trouble turned out to be a defective oil pressure sensor, an inexpensive fix. He felt it would be OK for me to use the port engine as long as I checked oil pressure regularly. During the check Leith noticed that another sensor had been cross-threaded upon installation and offered to fix that along with the oil sensor. He also suggested I have a spare water pump impeller on board and will order that as well. His total time for the complete check out was about a half-hour which was what I was billed for. An A+ performance. read more