Re: [Amel Yacht Owners] Re: Amel Santorin Propeller Question

James Alton


  I am just guessing but it is possible that the transmission on the engine is beginning to slip.  How does the transmission oil look?   Also is the transmission running hot when this problem occurs?   The transmission would see increased loading during wind/ waves and might not slip at lower power settings so if it is getting weak this is when the problem would tend to show itself.   If the transmission is slipping a lot it might be possible to see if the output shaft from the transmission is increasing in RPM as it should as the throttle is advanced during a period when you seem to be losing thrust.  Again just totally guessing but I have experienced a slipping transmission on one boat and it behaved a bit like this.

Best of luck,

SV Sueno,  Maramu #220

On Dec 16, 2017, at 6:24 PM, lisallt2@... [amelyachtowners] <amelyachtowners@...> wrote:

Thanks Craig. We’ve been investigating all day. Nothing on the prop and it looks good and clean. No black smoke or any other symptoms coming from the engine. The prop spins while we are looking at it but after a few hours of motoring, does not seem to be able to handle going into any wind or waves. Wondering if it may be a gearbox oil issue? That maybe it shuts down as it heats up? Baffled at the moment. 
Thanks for the response!

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