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Hi Trawler Forum community, I own a 2005 42’ NP that was purchased 2 years ago. I’m in Bellingham Wa, and put the boat into charter so i could get moorage in town. My anchor platform had water penetration, and the charter company did the repair (I will post pictures of the invoices for work...

Answering the questions above. Thanks for asking, Greg QS! This is the starboard engine on a twin 42 foot north Pacific, 2005. The only major part that has been changed on the engine is the water pump. The engines have been running perfectly. No overheats, but the boat is in charter, and was out...

We sampled the oil again after the four hours to see if there was a significant difference from the first sample, which had 140 hours on it. To answer your second question, we actually did a full engine service when we took the first sample (coolant included)). The engine I have (6BT) is not...

Thanks for all the replies. There has been no noticeable fluid level change in oil or coolant. I have done 2 oil samples (posted above), but I’m doing a third with another service (I’ll post it when it’s back). It’s inexpensive, and I’m looking for data points. I’ll start with the oil cooler and...

It has not overheated. I’ll start with the oil cooler. I thought the oil cooler exchanger was water cooled, which is why i thought the sodium might be saltwater. Does that make any sense? There’s not much else out of tolerance on the April oil sample above. Thanks for the response!

I have a 2005 NP Trawler with twin Cummins 6BT engines. Recent oil analysis (i changed oil in between analysis 1 and 2, and operated 4 hours) came back with high sodium and possible coolant in the oil. There is no milky consistency to the oil, the boat runs well, oil pressure is in range and no...