Join Date: Feb 2010
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Re: Yanmar 2GM20F How many is too many hours?
Let me play the "devil's advocate" here for a moment....
Sailboat auxiliaries usually get just about the worst treatment an engine could possibly get. They are most often used for fairly short periods, maybe 10 to 20 minutes, to get the boat out of the harbor and then back to her slip/mooring, OR are left idling for hours to charge even more severely neglected batteries. They are often burning old, dirty fuel. Oil changes get missed/delayed. They live in a corrosive environment, with a corrosive solution splashing all over them at times. Many, like my RWC 2GM20, have that corrosive solution circulating through them, as long as someone remembers to turn on the cooling water seacock. They are often worked on by rank amateurs (like myself), and then get their good names taken in vain whenever they don't perform perfectly. In short, sailboat engine verses car/truck/tractor engine is probably not a very good comparison. That said I still believe that 2000 hours isn't necessarily a huge amount of time on a 2GM20. However, I wouldn't expect most sailboat auxiliaries to last nearly as many hours as a car/truck/tractor engine.
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