Volvo MD2040C sail w/engine in neutral? - SailNet Community

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Diesel This is a forum dedicated to diesel engines and their applicable accessories.


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Old 04-19-2011
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Volvo MD2040C sail w/engine in neutral?

I have just finished reading the Volvo manual on my MD2040C diesel and they state uncategorically that when sailing the transmission must be in neutral.

The prop and shaft spin quite a bit sailing like this, its noisy and annoying, and I suspect slows the boat down.

Anyone have any experience with this? Shaft-loc has been suggested to me but its quite expensive.

Has anyone sailed with their Volvo transmission in reverse to lock the prop? Any problems develop from that?

Any comments or ideas would be appreciated.
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Old 04-19-2011
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I can't address the noise (or wear) issue, but I've recently reversed my long held belief about drag based on this and other articles. http://www.catamaransite.com/propeller_drag_test.html
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Old 04-19-2011
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A spinning prop will cause less drag than a fixed one. The reason for neutral, at least with a Yanmar is that the cone clutches wear and Yanmar has issued a warning about this. Volvo may have the same issue.

Yes, the noise can be annoying. A shaft brake of some kind is the solution.
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Old 04-20-2011
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Or a folding prop. No spinning shaft and reduced drag when sailing.
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