{"id":1156,"date":"1999-11-30T00:00:00","date_gmt":"1999-11-30T05:00:00","guid":{"rendered":"https:\/\/setsail.com\/?p=1156"},"modified":"2015-10-16T12:15:51","modified_gmt":"2015-10-16T17:15:51","slug":"engine-lifespan","status":"publish","type":"post","link":"https:\/\/setsail.com\/engine-lifespan\/","title":{"rendered":"Engine Lifespan"},"content":{"rendered":"
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Hi, my name is Naroa, I don’t know much about boats. I’m doing an investigation on the length of time a 115Hp motor should be going. We have a fleet of boats that coast guard a manmade lake that supplies water to the Panama Canal. We have 3 shifts a day which means that the boats have their motor running for 8 hours. I need to know what you consider the life expectancy of these boats to be? PS Your answer is VERY IMPORTANT.<\/p>\n<\/div>\n

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Hi Naroa: I’d be happy to try and answer your question–but first I need a bit of information. <\/p>\n

1-What sort of engine, gas or diesel? 2-Which make and model? 3-What percentage of time at idle and how much time under load does the engine spend? <\/p>\n

A well maintained diesel—which means change the oil at regular intervals—in commercial service—is typically good for between 10,000 and 15,000 hours of operation. On a sailing yacht, where the engines tend to spend a lot of time unloaded and not have regular maintenance, this figure usually ends up more like 7500 hours. <\/p>\n

Taking a guess, if this were a four-cylinder Yanmar, and your Coast Guards spent 1\/3rd of their time at fast idle underway, 1\/3 at half power and the rest at full continuous power, and if you changed the oil every few hundred hours, I would say you should be able to get 12,000 to 15,000 hours between major overhauls. <\/p>\n

Note: Making sure that the engine and prop are correctly matched, i.e. that the engine can reach its maximum rated rpm underway, is a critical factor in your type of application. <\/p>\n

I’ll try and get you more specific data if you can answer the questions. Regards–Steve Dashew <\/p>\n

PS: We came through the canal on our sailboat, BEOWULF, last February (2000\/my third trip). Steve Dashew<\/p>\n

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Hi, my name is Naroa, I don’t know much about boats. I’m doing an investigation on the length of time …Read More<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,21],"tags":[],"class_list":["post-1156","post","type-post","status-publish","format-standard","hentry","category-tech-talk","category-yacht-systems-faqs"],"_links":{"self":[{"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/posts\/1156"}],"collection":[{"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/comments?post=1156"}],"version-history":[{"count":1,"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/posts\/1156\/revisions"}],"predecessor-version":[{"id":36526,"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/posts\/1156\/revisions\/36526"}],"wp:attachment":[{"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/media?parent=1156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/categories?post=1156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/tags?post=1156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}