OIL ANAL­Y­SIS

Boating - - BOAT DOCTOR Q&A -

Q: Hi Mick. I just re­ceived my an­nual en­gine and trans­mis­sion oil-sam­ple re­ports, and as you can see from the at­tached sam­ple from my star­board en­gine, the lead read­ing is very high for the sec­ond year in a row. I would ap­pre­ci­ate any com­ments you might have on the sam­ple sheet from the oil an­a­lyst. But I am most con­cerned whether I am go­ing to have to re­place this en­gine or if there some­thing that can be done with­out re­mov­ing it from the boat (1997 Sea Ray 370 Ex­press Cruiser). The port en­gine was re­placed a year or so ago. I am guess­ing there are 600 to 700 hours on the star­board en­gine. It has been ma­rina-ser­viced for its en­tire life. Thanks for your thoughts. Dick But­trick Cape Cod, Mas­sachusetts

A: Mr. But­trick, you can baby that en­gine and treat it to fre­quent oil changes, but the fact re­mains it’s a 10-year-old in­board en­gine used in salt wa­ter. I’d rec­om­mend repower, based on the in­for­ma­tion pro­vided. The Sea Ray 370 EC is a fine boat and worth such an in­vest­ment. G’luck!

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